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The Pennsylvania State University
The Graduate School
The Mary Jean and Frank P. Smeal College of Business Administration
____________________________________ ____________________ Anne L. Beatty Associate Professor of Accounting The PriceWaterhouseCoopers Faculty Fellow Thesis Advisor Chair of Committee ____________________________________ ____________________ Mark W. Dirsmith Deloitte & Touche Professor of Accounting ____________________________________ ____________________ James C. McKeown The Mary Jean and Frank P. Smeal Professor of Accounting Interim Chairman of the Accounting Department ____________________________________ ____________________ Mark J. Roberts Professor of Economics
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Abstract
This paper investigates the relationship between commercial banks’ accrual choices
and the likelihood of their takeover. I study a sample of 2,414 commercial bank holding
companies (banks) over the period of 1987 through 1998. The sample consists of 14,574
bank-years. I perform two complimentary tests to determine if the targets in bank mergers
are managing their loan loss provision downward in the period prior to the merger. In the
first test, I select a sample of 641 bank-years for banks in the year before they are the
targets in a merger. I test for the mean difference in the loan loss provision between these
target-banks and the rest of the sample after controlling for the economic determinants of
the loan loss provision. I find that both public and private intrastate targets as well as
private interstate targets all demonstrate a negative unexpected loan loss provision during
a time-period where there is a high probability of takeover. I do not find an earnings
management difference between public and private targets. In the second test, I select a
sample of 116 target banks that continue to be reported as a subsidiary to their new
parent. I test for a negative (positive) unexpected loan loss provision prior to (after) the
merger. There is some evidence that these targets do have a negative provision prior to
the merger, but they do not exhibit the expected reversing behavior.
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Table of Contents
List of tables .....................................................................................................................v
Table 3 Distribution of all sample observations ........................................................ 53
Table 4 Distribution of target observations ............................................................... 54
Table 5 Distribution of bidder observations .............................................................. 55
Table 6 Descriptive statistics for all observations ..................................................... 56
Table 7 Descriptive statistics for target observations ................................................ 57
Table 8 Descriptive statistics for bidder observations ............................................... 58
Table 9 Regression results for merger- file sample .................................................... 59
Table 10 Total effect of unexpected provision ............................................................. 61
Table 11 Regression results for bidders and targets by year ........................................ 62
Table 12 Correlation between yearly coefficients and takeover probability ................ 63
Table 13 Distribution of the status-change targets and bidders .................................... 64
Table 14 Descriptive statistics for the status-change targets ........................................ 65
Table 15 Descriptive statistics for the status-change bidders ....................................... 66
Table 16 Regression results for the status-change sample ............................................ 67
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Acknowledgements
The road to the completion of a doctoral thesis can be treacherous and filled with unexpected surprises. I have had the benefit of working with great colleagues that have helped me traverse the rough spots, and warned me of the dangerous curves ahead. Two of my fellow doctoral students have been particularly helpful. Joe Weber and Ram Venkatamaran are like the Yin and Yang of my research conscience. Each is willing to spend the time to evaluate my work; Joe always finds the fatal flaw, while Ram attempts to convince me of my brilliance.
The professors that I have worked with at Penn State have all been encouraging and helpful in my progression towards the completion of this stage of my education. Mark Dirsmith has helped me to look at research from alternative perspectives. His thoughtful and provocative questions often lead to new ideas. I shall never look at a simple push-button ballpoint pen in the same light again. Mark Roberts has been a sure and steady guide through difficult territory. His ability to make the complex understandable has influenced both my research and my teaching.
Jim McKeown has had a big influence on the way I interpret the world that surrounds me. Jim’s critical analysis of all research spills over in all aspects of life. After being exposed to the level of scrutiny that he can bring to bear on empirical research, I find that I am wary of every fact and argument that I encounter. Everywhere I turn, I see that what most people might accept as a fact, I now interpret as an opinion.
Anne Beatty has treated me like a colleague from the moment I met her, I hope that someday I am worthy of that level of respect. She is the single most important influence on my development as a scholar. Her constant, arms-length supervision has allowed me to grow and learn as a researcher and a teacher.
My parents, Cay and Erv, are responsible for my academic achievements in more ways than I can count. Their willingness to help and encouragement of my return to college at the age of 31 gave me the ability and inspiration to succeed beyond my wildest dreams. In addition to this contribution late in my life, I am convinced that my early childhood played a role as well. From the early part of my childhood, my folks required me to keep a ledger of my finances that I had to present to my dad before I could receive my allowance. This was my first exposure to any type of financial record keeping. This was also my first experience with discretionary disclosure and earnings management. I do not think it is a mere coincidence that these are some of my research interests today.
My wife Trish deserves much of the credit for any success that I might achieve in my life. She has shown unwavering confidence in my academic abilities. I cannot count the times that I have complained to her that I was struggling to grasp some concept in my classes or studies, and that I would surely do horribly on the next exam, paper, or presentation. She would always calmly reassure me that I would pass, find clarity, or knock them dead. Luckily, she was right more often than not. Thank you Trish, your support has made my success possible.
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Based on extant research, we came to the conclusion that
understanding management’s incentives is key to understanding the desire to engage in earnings management. In particular:
• Managers have strong incentives to “beat benchmarks,” implying that firms just beating benchmarks are potentially more likely to be engaging in earnings management.
• Managers of firms desiring to issue equity have strong incentives to boost stock price and hence engage in earnings management. (Dechow and Skinner, 2000, emphasis added)
1. Introduction
This thesis seeks to further our understanding of earnings management by
investigating firms at a time when they have strong incentives for management to
increase the value of the firm. Although many studies have investigated the relationship
between earnings management and the incentives of the capital markets, there are still
calls for additional research in this area [Healy and Wahlen (1999) and Dechow and
Skinner (2000)].
The main purpose of this study is to determine if commercial bank holding
companies (banks), that are targets in upcoming mergers, manage their earnings by
lowering their loan loss provision. I use two complementary tests to investigate this
question. In the first, I use a sample of 14,574 bank-years to estimate an expected value
for the loan loss provision. I then test for a difference between this expected value and the
value in 641 bank-year observations where the bank becomes the target of a merger in the
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following year. This set of 641 target observations is for mergers where the target bank is
eventually absorbed into the new entity in the year of the merger. For the second test, I
also select a sample of 116 target observations where the acquirer continues to report the
target as a separate entity. With this sample, I again look for a difference between an
expected value and the target group. However, with this group I also track the differences
for a 5-year window surrounding the merger.
The targets in a merger should have the same incentive to increase their earnings as
those firms engaged in offering new equity to the market. This incentive to increase
earnings is essentially a method to increase the price of the shares sold, and there is
evidence that the benefits of this manipulation outweigh the costs [see for example
Rangan (1998), Teoh, Welch and Wong (1998a), Teoh et. al (1998b) and Teoh, Wong
and Rao (1998)]. This incentive to “fool” the new investors in a firm is the same in a
merger; the difference is that the new investor is a single firm, instead of a group of
diverse shareholders.
Managers face a variety of motivations when they make accounting choices.
Dechow and Skinner (2000) describes these choices as a continuum ranging from
conservative accounting to fraudulent accounting. Accounting for the provision for loan
losses could either be conservative or aggressive depending on management’s motivation
to increase or decrease earnings. Healy and Wahlen (1999) divide the motivations to
manage earnings into three main areas: capital market, contracting and regulatory. Under
each of these motivations the choices that management can take range from the neutral
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application of accrual accounting to presenting an inaccurate picture of the firms
underlying economics. The incentives might be to mislead, conform, or simply meet
some pre-set goal or standard. The driving force behind any of the potential choices that
management might make will be a cost benefit tradeoff for management.
Many studies have looked at discretion over the loan loss provision in a variety of
settings. Wahlen (1994) finds that a measure of unexpected loan loss provision is
positively related with future changes in cash flows and contemporaneous stock returns.
This is consistent with the market interpreting the increase in loan loss provision as a
signal of strength. This signaling story is contradictory to the idea of using the discretion
over the loan loss provision to increase earnings. Tests of the signaling story have
resulted in some mixed findings. Beaver and Engel (1996) find support for the idea that
the discretionary portion of the loan loss provision is positively related to market value.
However, Ahmed, Takeda and Thomas (1999) find that loan loss provisions are
negatively related to future earnings changes and contemporaneous stock returns. Their
claim is that the previous studies had not completely controlled for the economic
determinants of loan loss provisions.
Prior research that looked specifically at the earnings management of targets in
non-bank firms has not been able to consistently document that targets increase earnings
prior to the merger [e.g. Easterwood (1997) and Erickson and Wang (1999)]. In the
banking industry, Chamberlain (1991) looks at a sample of 192 bank mergers during the
period 1981-1987. She investigates earnings management using the provision, loan
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charge-offs and securities gains. She finds “no anticipatory earnings management prior to
the merger”(p. 75). In this study, I focus on a single accrual in a single industry, instead
of relying on a measure of unexpected total accruals. Using this method I do find
evidence that some of the targets of mergers have unexpected income increasing accruals
in the period prior to their merger.
In addition to the results concerning the targets, this setting allows me to reexamine
the results relating to bidders as demonstrated by Erickson and Wang (1999). The
argument for bidders to manage earnings upward prior to the merger is analogous to that
for the targets. If a bidder can increase their share price prior to the transaction, and they
use those shares as a medium of exchange, then the earnings management can affect a
lower price for the acquisition. In the sample I examine there are 346 bank-years where
the bank is a bidder in at least one merger in the following year. Of these observations
74% of the banks explicitly report that they issued equity with respect to a business
combination, and another 18% issue other equity in the year of the merger. I find that
these bidder observations exhibit a lower loan loss provision during the period before the
year of the merger, but it is at marginally insignificant levels.
The data for my sample of bank holding companies come from the public
regulatory reports that all banks must file with the Federal Reserve. Because these data
are available for both public and private banks, I can also test for differences in earnings
management across these types of firms. There has been recent evidence that earnings
management incentives and outcomes differ across these two groups [Beatty and Harris
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(1999) and Betty, Ke and Petroni (1999)]. In this setting, I do not find any significant
differences in unexpected loan loss provision between the public and private banks.
Another difference that this sample allows a test for is differences in type of
merger. During the sample period barriers to both intrastate and interstate mergers fell.
These two types of mergers might be seen as accomplishing different goals for the
participants. An interstate merger is a vehicle for expansion for an aggressive firm.
Alternatively, the trade press often describes an intrastate merger as a defensive move to
protect against such an aggressor. I test for differences across these two types of mergers
and find that the targets in the intrastate mergers exhibit earnings management behavior
consistent with increasing earnings, while those that are the targets of out-of-state bidders
do not.
This research contributes to the literature on earnings management in a number of
ways. First, I have a powerful setting to test for merger targets managing earnings prior to
the merger. Prior literature has predicted, but not found, this result [Easterwood (1997)
and Erickson and Wang (1999)]. Second, it adds to the literature concerning earnings
management surrounding an issue of equity [e.g. Rangan (1998), Teoh, Welch and Wong
(1998a), Teoh et. al (1998b), Teoh, Wong and Rao (1998) and Erickson and Wang
(1999)]. These studies have relied on an unexpected total accrual model to measure levels
of earnings management, while my study focuses on a single account. Because I use a
different method to test for earnings management and find consistent results, this lends
credibility to both types of findings. Finally, there are recent studies that find that public
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banks manage earnings on an ongoing basis to both smooth earnings and avoid losses and
declines [Beatty and Harris (1999) and Betty, Ke and Petroni (1999)]. This study
examines the behavior of these two groups during an event, as opposed to ongoing
behavior. I do not find any significant differences between these two groups prior to a
merger.
The arrangement of the remainder of this thesis is as follows: Chapter 2 discusses
the background of the banking industry and why the sample time period is a fertile time
for mergers. Chapter 3 presents the hypotheses to be tested. Chapter 4 outlines the
empirical methods. Chapter 5 provides the sample selection and a description of the data.
Chapter 6 discusses the results of the empirical tests. Chapter 7 provides some sensitivity
analysis. Chapter 8 concludes and describes future research extensions.
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2. Merger activity in the Banking Industry
The merger activity in the banking industry has increased within the last 10 years.
This increase in merger activity is the result of changes in regulation allowing mergers. In
the 1970s, the industry consisted of many small banks operating independently. Most
states restricted the ability of these banks to branch or otherwise expand. Most states did
not allow out-of-state banking firms to own or operate banks within the state boundaries.
By the middle of the 1990s, the industry had shifted from this type of structure to one that
allowed relatively free geographic expansion both within and across state boundaries.
The culmination of this change was passage of the Riegle-Neal Interstate Banking and
Branching Efficiency Act of 1994 (IBBEA). This federal law permits bank holding
companies to expand on a national basis beginning in June 1997.
Prior to the passage of the IBBEA, the regulatory control of the banking industry
structure was at the state level. Each state went through a number of deregulatory steps to
loosen the restrictions on bank consolidation. These restrictions can be divided into either
intrastate or interstate types. A common first step was to allow bank holding companies
to own banks anywhere within state boundaries. Alternatively, a state could allow
intrastate branching; either of these two deregulations would allow a banking firm to
control bank locations across the state.
The next regulatory change was to allow out-of-state competitors to buy in-state
banks. This was achieved by allowing the operation of interstate bank holding companies
(BHCs). The states first allowed these interstate BHCs from a restricted set of
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neighboring states. These were known as regional reciprocal agreements. Many of these
regional reciprocal agreements included national trigger provisions that would allow the
measure to include all states after a period of a year or two. In addition, some of these
trigger provisions were structured so that as soon as any other state allowed the home
state banks to buy its banks, then the home state would act in kind.
The result of these changes is that the banks’ expectations about new competitors
were increased. As the states allowed out-of-state holding companies to compete, those
in-state banks that felt the need to be bigger to protect themselves from the inevitable
newcomers looked around for partners. In this way, both the intrastate and the interstate
deregulations helped to drive the intrastate mergers.
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3. Hypotheses
Healy and Wahlen (1999) define earnings management as using the discretion
over financial reports to purposely mislead some party about the underlying economic
performance of the firm. In the case of a merger target managing earnings upward to
increase its price, the parties being misled are the bidder firm’s management and
shareholders. The merger agreements of these banks include a discussion of the process
used to value the target bank. An external financial advisor performs these valuation
calculations. In general, the statements seem to indicate that the fairness of the price is
evaluated by the relative multiples on earnings, capital, deposits and total assets. In
addition, the public targets usually have included a comparison of their stock valuation.
The act of managing the loan loss provision down will have the effect of increasing
earnings, assets, capital and firm value.
Extant research is unclear about the effect on firm value due to discretionary
changes in earnings components. Wahlen (1994) and Beaver and Engel (1996) both find
that the market rewards lower earnings when the loan loss provision is the instrument of
discretion. Ahmed et al. (1999) calls those results into question by providing a different
measure of discretionary loan loss provision. Chamberlain (1991) suggests that bank
manager’s motivations could cause them to use their discretion in either direction prior to
the merger. She tests a two-sided hypothesis that there will be an unexpected loan loss
provision prior to the merger and that it will reverse after the merger. In her sample of
192 mergers, she finds no evidence of earnings management prior to the merger. Teoh et
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al. (1998a) and Rangan (1998) both offer evidence that non-bank firms that issue new
equity are able to successfully manipulate firm value over the short run. But the
conflicting evidence from the banking literature makes it unclear whether the use of the
provision to increase earnings would result in an increase in firm value as has been
shown in non-bank firms. This thesis does not test this question; rather I seek to
determine if merger targets lower their provision prior to the merger, which would be
consistent with an attempt to increase earnings to influence firm value in the short run.
This leads me to my first hypothesis.
H1A: Bank holding companies that are targets in a merger in a calendar year will have a negative unexpected1 loan loss provision at the end of the previous year.
The next three hypotheses are all concerned with finding the differences across
different types of banks, mergers and periods. I divide the banks into public and private, I
split the mergers between intrastate and interstate, and I separate the periods into a high
probability and low probability of merger. Each of these divisions should affect either the
target’s incentives and/or ability to manage earnings.
Beatty and Harris (1999) find that public banks engage in more earnings
management than do private. Their finding is consistent with public firms having a
1 In this paper I use the term unexpected loan loss provision to represent a difference from the mean loan loss provision after controlling for the economic determinants of the loan loss provision.
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greater incentive to reduce the information asymmetry between management and
investors. In this setting, I do not expect that type of information asymmetry will affect
the incentive to mislead the bidder bank about the target’s underlying fundamentals. Both
the public and private targets have the same incentive, to mislead the bidder and increase
the purchase price. If there are differences between the two groups, I expect it will be
because of differences in the ability to manage earnings or to predict the timing of the
deal.
It is unclear if one or the other group would have an advantage in predicting the
timing of any potential merger. Public firms that are merger candidates are often
discussed in the trade press. Private firms generally do not have public attention paid to
them, but might have a greater amount of private communication with any potential
suitors.
The two groups’ ability to manage earnings might be different because of
constraints on the public banks. A difference also might arise because of differential
reliance on accounting information in forming price across the two groups. Beatty and
Harris (1999) determine that public banks are managing earnings to mitigate information
asymmetry. The earnings management that they find is bi-directional; that is, it is an
earnings-smoothing story. They test for earnings management in realized securities gains
and losses only, but if public banks have the incentive to smooth earnings with this tool
then they might be using other tools as well. If this ongoing management limits the public
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banks’ ability to manage earnings in the specific period then the private banks will be less
constrained in managing earnings surrounding the merger event.
Another potential difference across the two groups might be audit quality. Both
groups are subject to regulatory review, but the public firms also must have a financial
audit by an independent external auditor. While the private banks are not required to have
a public audit firm perform an external audit, it is likely that most do. The quality of that
audit is likely to depend on the level of ownership concentration, and the level of
management ownership (Clarkson and Simunic, 1994). If private banks on average have
higher concentration of ownership and managerial control then they are likely to contract
for lower quality audits. This may allow a greater ability to manage earnings [Becker,
Defond, Jiambalvo and Subramanyam (1998) and Francis, Maydew and Sparks (1999)].
Although the timing issue is unclear, it seems that the private banks face lower
constraints in their ability to manage earnings. This leads me to the second hypothesis
concerning the target banks.
H1B: Privately held bank holding companies that are targets in a merger in a calendar year will have a negative unexpected loan loss provision compared to the publicly held targets.
I expect the split between intrastate and interstate mergers to find differences in the
ability to predict the timing of the merger. The trade press portrays many of the intrastate
mergers as a tactic to avoid the takeover of either by out-of-state rivals. Many of the press
articles that relate to intrastate mergers specifically discuss the need to combine in-state
forces to stave off the pending out-of-state invasion. While both of these types of mergers
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are somewhat forced on the target, the intrastate type is to be more likely to be initiated
by the target. Those banks that are the target of an interstate acquisition are either less
likely to have predicted the event or they had less ability to find a suitable partner. In
either event, the target in an interstate merger seems to be not only predicting, but also
perhaps controlling the timing of the merger. This leads to the following hypothesis.
H1C: Bank holding companies that are interstate targets in a merger in a calendar year will have a positive unexpected loan loss provision compared to the intrastate targets.
The next prediction that I make concerns the ability of all types of targets to predict
the timing of the takeover. Erickson and Wang (1999) predict “similar to acquiring firms,
target firms may also have an incentive to increase pre-merger earnings in an attempt to
increase the transaction price”. They do not find that their sample bears this out, and
conclude; “the timing of the acquisition may explain the weak results”. During the period
of my sample the probability of any bank in my sample being a target in the next year
ranges between 1.95% in 1989 and 7.70% in 1997, Table 1 details these calculations.
There is a clear break in this probability, from 1987 to 1991, the average was 2.85%, but
between 1992 and 1997, the average probability jumped to 5.94%. If Erickson and Wang
(1999) are correct and the desire for targets exists, but they do not have the ability to
predict the timing, then targets will be more likely to consider themselves potential
targets during this higher probability period. This leads to the final hypothesis concerning
the targets.
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H1D: Bank holding companies that are targets in a merger in calendar years when there is a lower average expected rate of takeover would have positive unexpected loan loss provision compared to the targets in other years.
The bidders in these mergers also have the incentive to manage their earnings
upwards. Many studies have shown a relation between current earnings and the firms’
market value [e.g., Ball and Brown (1968), Foster (1977), or Beaver et al. (1979)]. The
value of current earnings is particularly important in valuing the bidders stock
[DeAngelo (1986, 1990)].
Erickson and Wang (1999) make the case for managing earnings prior to a stock-
for-stock merger explicitly. In a stock-for-stock merger there is either a negotiated
exchange rate for the shares of the two firms or there is a dollar value of the bidders stock
that will be exchanged for the target’s stock. Their argument is that by increasing the
reported earnings prior to the negotiations for the transaction the stock price will increase,
and the bidder firm can use fewer shares of their stock to purchase the target. Even if a
bidder bank does not explicitly engage in a stock-for-stock merger, they still might have a
need to raise equity. This leads to my first hypothesis concerning the bidders.
H2A: Bank Holding Companies that are the bidders in a merger in a calendar year will have a negative unexpected loan loss provision at the end of the previous year, compared to non-bidders.
The next hypothesis is concerned with the differences between public and private
bidders. If bidders in general have the incentive and the ability to manage their earnings
prior to a takeover, are there differences across bank types. Erickson and Wang (1999)
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looked exclusively at public bidders. Their results suggest that the bidder can manage
earnings and increase their stock price. This mechanism relies on information asymmetry
between managers and the investors of the bidder firm. It is unlikely that the same level
of asymmetry will exist in the privately held bank holding companies. There should be a
greater concentration of ownership, as well as a higher level of managerial ownership in
private firms. Any successful earnings management done by the private bidders must be
an attempt to mislead only the target bank and their representatives. The private banks
might have more ability to manage their earnings, because of a higher level of managerial
ownership.
Just as in the case of the targets, the private bidders might face fewer constraints
from their auditors. Additionally, the results from Beatty and Harris (1999) indicate that
the public banks might be constrained in their earnings management choices. If public
banks are engaging in an ongoing process of earnings management to mitigate the
information asymmetry, then they might be constrained in the actions that they could take
to manage earnings in a period prior to a merger action. This seems to indicate that the
private banks will have a greater ability to manage their earnings surrounding the merger
period.
Although the above arguments seem to indicate that private bidders might have a
greater ability to manage earnings, there are also reasons that they might not. The
incentive for the bidder in these transactions to manage earnings is to lower the cost of
acquisition by increasing the relative value of the medium of exchange, the stock of the
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bidder. However, the shareholders of a target, that is being offered a private bidder’s
stock as an exchange, are likely to require a thorough investigation of that bidder's
valuation. This might result in the private bidder engaging a high quality auditor, and
perhaps revealing a greater amount of private information about the firm. These actions
could mitigate any earnings management that did take place. It is unclear to me which of
these effects would dominate, but if one of them does dominate the other, then the
discretionary loan loss provision for private bidders will differ from that of their public
counterparts. This leads me to my final hypothesis concerning the bidders.
H2B: Privately held bank holding companies that are bidders in a merger in a calendar year will have a difference in unexpected loan loss provision compared to the publicly held bidders.
If targets and bidders are managing their earnings upwards in one period, then that
will mean a reversing effect must happen in future periods. For a smaller set of bank
holding companies, I can jointly observe the accounts of the bidder and the target both
before and after the merger. Based on the above arguments it is a straightforward
argument to make the case that if targets and bidders manage their loan loss provision
downward prior to the merger, then they should manage it upward after the merger. This
leads to the final hypothesis.
H3: Bank holding companies that are either targets or bidders in a merger in a calendar year will experience negative unexpected loan loss provisions in the years prior to the merger and positive unexpected loan loss provisions in the years after the merger.
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Overall, the set of hypothesis can be summed up into the following statements. The
managements of banks that are involved in mergers have incentives to manage earnings
upward prior to the completion of the merger. The extent that the bank can do this
depends on any other constraints that they might face and for target banks, the ability to
predict that they will be a target.
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4. Empirical Methods
a. Modeling loan loss provisions
I assume that target and bidder bank managers are concerned about the relative,
rather than the absolute, levels of the provision. In the following model, I further assume
that the main approach to setting the provision is a balance sheet approach. That is, the
managers are using the provision (without discretion) to correctly state the value of their
allowance for loan losses. Under these assumptions it follows that what managers are
concerned with is the size of their provision relative to the ending balance of loans. The
following model and related tests implicitly assume that in the short run management has
greater discretion over the provision than they do over the level of loans. Of course,
management has complete control over both variables, but on December 31, the level of
loans is fixed, while the level of allowance has a discretionary component that is still
available to management. To control for the determinants of loan loss provision, I use
both a set of firm specific and a set of macro-economic variables. I describe both types
below. The ratio of the provision to loans (ProvRatio) is regressed on other bank specific
ratios that have been shown to influence both the discretionary and the non-discretionary
portions of the provision.
The control variables are a combination of flow variables (income statement and
changes in balance sheet items) and stock variables (balance sheet items). These variables
are all measured as ratios. In general, I scale the flow variables by a corresponding flow
variable and the stock variables by a corresponding stock variable. For instance, I scale
19
the change in non-performing loans (∆NPL) by the average loans for the period while I
scale the beginning of the period loan loss allowance (Allowance) with the total assets for
the same time2.
To control for both cross-sectional and temporal correlations, I use a pooled cross-
sectional model that incorporates fixed effects for both time and firm specific
correlations. Because these fixed effects are not the variables of interest, I do not report
In the actual estimation of the model, I allow several of the independent variables
to vary across types of banks, types of mergers and periods. I discuss these specific
modeling choices below. However, I present the basic framework and the variable
definitions for the readers benefit.
2 The one exception to this rule is the change in assets (∆Assets). At some point, I used the beginning assets, the average assets and the ending assets as scalars. All of these provided similar results; the results presented are with the change in assets scaled by the end of the year assets.
20
Dependent Variable: ProvRatio is the loan loss provision for the period scaled by the value of gross loans at the end of
the period. Test Variables:
Target is an indicator variable that is one if the bank is a merger target in the following calendar year.
Bidder - is an indicator variable that is one if the bank is an acquirer in the following calendar year. Firm Specific Control Variables:
∆NPL is the change in non-accrual loans scaled by the average total loans for the year. Allowance is the banks’ loan loss allowance at the beginning of the year scaled by total loans at
the beginning of the year. ∆Assets is the change in total assets for the year scaled by total assets at the end of the year. CapRatio is owners’ equity plus the tax adjusted loan loss provision scaled by total assets at the
end of the year. EBTP is the pretax net income plus the tax adjusted loan loss provision scaled by total assets at
the end of the year. Size is the log of total assets. Private is an indicator variable that is one if the bank is privately held.
Macro-Economic Control Variables: ∆StateIncome is the yearly percentage change in the fourth-quarter personal income in the state
that the bank is headquartered in. ∆StateUnemployment is the yearly percentage change in the fourth-quarter unemployment
payments in the state that the bank is headquartered in. ∆InterestRate is the one-year change in the average monthly quotes for the one-year treasury rate
in the fourth quarter.
b. Test Variables
I select the targets and bidders in two different manners. For H1 and H2 I use a set
of targets and bidders that I will refer to as the merger-file sample. For H3 I use a set of
targets and bidders that I will refer to as the status-change sample.
I base the merger-file sample on a data file of mergers maintained by the Federal
Reserve Bank of Chicago. This file lists the targets and bidders in 3002 mergers that have
ultimately resulted in the bidder fully incorporating the target. This file tracks mergers
21
going back to 1976, but the data for bank holding company performance (the Federal
Reserve’s Y-9 report) is only available in electronically readable form beginning in 1986.
If an observation is on the merger-file as a target and is a top-tier holding company
in the last year on the data files, then I code the last year the bank is on the data file as a
target observation. This results in 641 merger-file target observations. Table 4 describes
these observations.
To find the merger-file bidder observations I began with the list of targets
determined by the above process. I retained the bidders related to these targets. There are
fewer bidder banks than targets, because a bidder can be a bidder more than once. There
are fewer bidder observations than target observations because a bidder can acquire more
than one target in a year. Table 5 describes the distribution of the bidder observations
selected through this process.
Once identified, the target and bidder observations were interacted with other
dummy variables to obtain a marginal effect. To test for the differences between public
and private bidders and targets, hypotheses H1B and H2B, I use an indicator variable for
being a private bidder or private target. These variables take on the value one according
to the distribution in Table 4. To test for the differences between intrastate targets and
interstate targets, hypothesis H1C, I form an indicator variable if the target and bidder
banks are headquartered in different states. Finally, to test for the difference in the high
and low probability periods, hypothesis H1D, I use an indicator variable that is one for
22
targets during the years 1987 – 1991 and 1998. These years are those with lower
probability of being a takeover.
I identify the status-change sample in a different manner. Bank holding companies
that acquire other bank holding companies sometimes choose to report the two entities
separately. When the top-tier holding company of a subsidiary changes, the change shows
up in the data file. This change lets me identify both the new subsidiary and the parent
company. I find previously independent top-tier firms that are newly reported as a
subsidiary. I also include those subsidiary banks that are sold from one parent to another.
Because I wish to allow for a before and after comparison, I limit this sample to those
banks that have three years prior to the merger and two years after. This procedure results
in 116 observations of 107 banks. Table 13 lists these targets. I also pick up the bidders
that relate to the status-change targets. There are only 18 banks involved in 27 merger-
year observations. Table 13 also lists these bidders.
c. Firm-Specific Controls
Ahmed et al. (1999), Kim and Kross (1998), Collins et al. (1995) and Beatty et al.
(1995) all model the loan loss provision as a function of control variables and then use
measures of capital level and earnings as test variables. One of the common controls in
these papers is the quality of the loan portfolio. I include three variables in my model that
captures this property. First, I include the change in non-performing loans (∆NPL) for the
year scaled by average total assets. Ahmed et al. (1999) and Kim and Kross (1998) both
find that this measure is positively related to the loan loss provision, and I expect the
23
same to be true in my sample. Next, I include a measure of loans allowed for at the
beginning of the year. Collins et al. (1995) and Beatty et al. (1995) both include the
beginning balance of the loan loss allowance to control for loan quality. They both found
the beginning allowance to be negatively related to the loan loss provision at the end of
the year, indicating a reversion to the mean effect for the value of the loan portfolio. In
my model, I include the variable Allowance that is the loan loss allowance scaled by total
loans at the beginning of the year. Accordingly, I expect that this variable will be
negatively related to the loan loss provision. Finally, I include an explicit measure of
growth to capture the relative ages of the loan portfolio. I expect that those banks that are
growing faster are doing so by generating new loans, which are less likely to need an
allowance before they are a year old. Thus, I expect the relation between ∆Assets and the
provision to be negative.
I also include as control variables measures of earnings and capital. These variables
have been test variables in prior studies [see Moyer (1990), Collins et al. (1995), Beatty
et al. (1995), Kim and Kross (1998) and Ahmed et al. (1999)], and there is evidence that
they are significantly related to the provision. Earnings smoothing, increasing
(decreasing) the provision in times of high (low) earnings and the management of
regulatory capital, increasing the provision to increase the level of regulatory capital,
have both been thought to influence the valuation of the provision. The evidence on these
two influences on the provision is mixed. Moyer (1990), Beatty et al. (1995) and Ahmed
et al. (1999) all support the influence of capital management, while Collins et al. (1995)
24
does not. The earnings smoothing influence is supported by Collins et al. (1995) and not
by either Beatty et al. (1995) or Ahmed et al. (1999).
I proxy for the effect of capital constraints with a simple measure of bank equity
(CapRatio), adjusted for the current tax adjusted provision and scaled by assets. This
measure does not capture the fine nuances of all of the various capital regulations, but it
will capture broad differences across banks. In addition, the rules for the regulation of
capital level changed in 1991, and the influence of the provision in meeting minimum
capital standards was lessened3. Ahmed et al. (1999) tests for this change and finds a
significant difference between the two periods. Accordingly, I let the impact of the
capital level of the bank vary across the two periods. If my measure of capital is
capturing the regulatory cost of violating the minimum capital levels, than I would expect
to see a negative relationship in the pre-1991 period and a significantly less negative
relationship in the post 1991 era.
To control for the influence of non-provision earnings, I include the variable EBTP.
I form this by adjusting pre-tax net income by the current tax-adjusted provision4. The
earnings smoothing story suggests that there should be a positive relation between this
3 Ahmed et al. (1999) presents a thorough discussion of the capital regulation in both periods. 4 For EBTP I use an ad-hoc 40% tax rate. I also estimate EBTP using a derived tax rate based on the
current years tax expense. The two variables are quite similar, and I run the tests using both, the results are not different across the two methods.
25
variable and the provision. Further complicating the potential relation between the
provision and earnings, is the fact that my sample contains both public and private banks.
The motivation for earnings smoothing is to lower the cost of capital in an environment
of information asymmetry. This motivation should only exist in the public banks and not
in the private ones. Beatty, Petroni and Ke (2000) find that public banks are much less
likely than private banks to report small negative earnings changes, indicating that
meeting benchmarks is more important for the publicly owned banks than for private
ones. Accordingly, I allow the impact of earnings to vary across the two groups, and I
expect that the marginal effect of earnings on the provision, for the private banks will be
negative. The expectation is that the net effect is one of no relationship between earnings
and the provision for these banks.
I include two variables to control for broad differences across banks. I include the
log of assets to control for any differences in the loan portfolios that might vary with the
size of the bank. Finally, I include an indicator if the bank is a private bank.
d. Macro-Economic Controls
Ahmed et al. (1999) found that including a measure of the health of the economy in
the locations where the bank has loans is an important determinant of the loan loss
provision. They form an index of business failures weighted by the locations of the loans
a bank holds. To do this they have to restrict their sample to those banks where the
geographical distribution of loans is available. In an attempt to capture the same type of
macro-economic expectations without limiting the sample, I include three variables and
26
their lags. I use the fourth-quarter to fourth-quarter change in income in the state in which
the bank is headquartered as one component of this expectation. I expect that as state
income increases the expectation of future loan loss will decrease. Banks will see their
customer base growing, and their customers will have greater income, lowering their
default risk. I expect that this variable will be negatively related to the current provision.
I also include the changes in state unemployment payments as another indicator of
macro-economic expectation. I see this as an opposite indicator to the income indicator
above. As economic conditions degrade in a state, the prospects for a banks' customer
also degrade, increasing their default risk. I expect this variable to have a positive relation
with the provision.
Finally, I include the change in the one-year interest rate to control for changes that
affect the borrower's ability to repay loans.
e. Test for reversing behavior.
I use the model described above to test the merger-file sample in the period just
prior to the merger year. However, the status-change sample offers a unique opportunity
to examine the behavior of the provision over time for both the targets and bidders
involved in mergers. Because of the smaller sample size, I do not try to sub-divide the
targets and bidders into any other groups. I estimate the model using the control variables
listed above and form a set of ten indicator variables that measure the unexpected
provision in each of five years for both the targets and bidders. The Targets and Bidders
variable is the year before the merger, the same as in the merger-file tests. I then add two
27
years before and two years after for each group. Consistent with H3, my expectation is
that for both targets and bidders the unexpected provision will be negative in the first
three periods, and positive in the last two.
28
5. Sample Selection and Descriptive Statistics
The data used in this study come from three publicly available sources. I obtain the
bank-specific data from the Y-9 report filed with federal bank regulators. These data are
available in downloadable files from the Federal Reserve Bank of Chicago at
www.frbchi.org. The data files are available for all quarters in the period between the
second quarter 1986 and the second quarter 1999. In this study, I use the yearly data that
is available, the files for the period ending 12/31. The data on bank holding company
mergers is also available from the Federal Reserve Bank of Chicago. They have available
a list of 3,002 mergers between bank holding companies that occur between 1976 and
1999. This merger-file contains the date that the non-surviving bank holding company
consolidates into the survivor.
The state income data are available from the Bureau of Economic Analysis.
Machine-readable data for all state quarters from 1969 through 1998 is available at
www.bea.doc.gov. The interest rate data is located at FRED, the Federal Reserve
Economic Data, which is at www.stls.frb.org
The main data files for the bank holding companies during this period list 3,127
banks with 19,392 observations that report positive assets. I eliminate 26 banks that are
not headquartered in the 50 states or D.C. I next remove 187 banks that have
interruptions in their time series of data. I lose 2,914 observations and another 409 banks
due to the use of beginning of the period and change variables. Finally, I eliminate 473
observations of 91 banks that have missing or anomalous data. Table 2 outlines the
29
sample selection procedure. The final sample consists of 14,574 observations from 2,414
bank holding companies over 12 years. This sample represents 96.8% of all the available
observations of bank holding companies during this period.
To determine the cut off points for anomalous data, I examined the 50 extreme
observations for all variables. For the ProvRatio I eliminated those greater than 0.5 and
those less than –0.07. The ∆NPL I limited to be between -0.3 and 0.3. CapRatio was
limited to be greater than 0.01 and less than 0.5. EBTP was constrained to range between
–0.2 and 0.25. All of these cut-off points were based on an observation of the raw data,
and the decision rule was based on the gap between data points. For all of the data
eliminated, if any of the observations were anomalous, all of the observations for the
bank were eliminated.
Table 3 describes the distribution of observations across years and the public and
private distinction. The public or private designation is determined in the following
fashion. The Y-9 reports indicate if the bank was a SEC filer during the period covered
by the Y-9. I code as public banks those that are SEC filers and those that switch from
being a non-filer to being a filer at any time during the sample period. I code as private
all those that are non-filers, or switch from filer to non-filer status. Being a SEC filer does
not insure that the firm’s stock is publicly traded, but being a SEC non-filer insures that it
is not. Therefore, in my coding scheme I may code as public some private banks. This
works to bias against my finding results that support H1B and H2B.
30
Table 4 and Table 5 describe the merger-file target and bidder observations
respectively. The public, private, intrastate, and interstate columns describe these subsets
of each of the bidder and target samples. The target sample is split rather evenly between
public and private, while the bidder sample is 72% public banks. Both types of targets
and bidders are about 60% intrastate mergers.
Table 6 presents the descriptive statistics for the total sample. The loan loss
provision has a mean (median) of 0.66% (0.37%) of the gross outstanding loans at the
end of the year. This level is similar to studies that limit their sample to larger public
banks [see for example Ahmed et al. (1999)]. Although the provision is an expense for
financial reporting purposes, it can be negative in the regulatory reports5. There are 356
observations, approximately 2.4% of the sample, which report a negative loan loss
provision. To better explain the effect the screening process had on the data, I present the
following details the process on low end of the ProvRatio distribution. I screened this
variable at -0.07 on the low end. Prior to the screen, there were five observations less
than that, between -0.21 and –114.0 and there were five observations between –0.03 and
–0.21. After the screen, and the removal of all of the observations of the banks that had
observations less than –0.07 there were only three observations less than –0.03.
5 Ahmed et al. also report a negative minimum value for their provision variable.
31
The range in the size of the sample is larger than most prior research that looks
only at public banks. The sample includes a minimum observation of a bank with just 8.2
million dollars in assets all the way to an observation of a bank with 617 billion dollars in
assets.
Tables 7 and 8 present the same set of descriptive statistics for the target and bidder
observations. As expected, the bidder banks are on average much larger than the targets,
although there is considerable overlap in the distributions. The other major differences
between the two groups are their growth rate and the ProvRatio. The bidders in the year
prior to the merger are growing at an average of almost 11% per year, while the targets
are just over 6% per year. The targets are providing for loan loss at a significantly higher
level than the bidders, at a rate of about 0.2% of total loans.
Tables 13, 14 and 15 describe the smaller, status-change sample. The difference
between the targets and bidders in this sample is extreme. The status-change targets are
on average smaller than their bidder counterparts by a factor of 26. These targets are
smaller than the merger-file targets by about 40%, while the bidders are nearly 3 times
the size of the merger-file sample bidders.
32
6. Results
I divide this chapter into two sections. The first discusses the tests on the merger-
file sample. The second discusses the test of the status-change sample.
a. The merger-file sample
Table 9 presents the regression results of the scaled loan loss provision on the
control and test variables. To account for the effects of time and firms I use a full fixed
effect model. A test of the first and second moments of the model results in the rejection
of the null of no heteroscedasticity at less than the .0001 level. Accordingly, the t-stats
presented are adjusted with White’s (1980) method to correct for heteroscedasticity.
(1) Test Variables
Table 9 and 10 present the results of the main tests. In the regression estimate
presented in table 9, the coefficient on the Targets variable is negative and significant,
indicating that the public intrastate targets in the high probability period are exhibiting
negative unexpected ProvRatio. The level of the coefficient, -0.00114, equates to a
difference of about 5% of pre-tax, pre-provision income for the targets.
The coefficient on the private targets is not significantly different from zero. This
variable is measuring the difference in the average ProvRatio between the public targets
and the private targets. This indicates that there was not a significant difference between
the public targets and the private targets in all settings. This result is after controlling for
a bank being private. Hypothesis H1B proposed that private banks would manage their
33
provision downward in a greater amount than the public banks, because they had fewer
constraints on their earnings management ability. This hypothesis can be rejected.
The coefficient on the Interstate Targets variable is positive and significant. This
variable is measuring the difference in the average ProvRatio between the intrastate
targets and the targets of interstate mergers. Hypothesis H1C suggested that the interstate
targets would not have the ability to manage their provision because of an inability to
predict the timing of the merger. The prediction was that all targets would have a
negative loan loss provision and interstate targets would be positively offset from that
negative position. The result on the Interstate Targets variable supports that hypothesis.
The positive and significant coefficient on the Low Probability Targets indicates
that the time-period matters. This variable is measuring the difference in the average
ProvRatio between the targets in the high probability period (1992-1997) and those same
banks in the low probability period (1987-1991, 1998). This result lends support to the
idea that the targets will engage in earnings management if they are in a position to
predict the timing of the takeover. However, the size of the coefficient on this variable is
large enough to overwhelm any earnings management effect during the low probability
time-period. In other words, during the low probability period, the targets had a positive
unexpected provision, and in the high probability period, they had a negative unexpected
provision. To insure that the low/high probability distinction was in fact capturing the
ability of the targets to predict, and not some other time specific anomaly, I estimated the
34
model letting the bidders vary across the two periods. The results (not presented) indicate
that the bidders were not affected by the time-period.
As an additional check to address the issue of targets managing earnings during
particular periods when the probability of takeover is high, I also estimate the model
allowing the coefficient on all targets and all bidders to vary across all years. Table 11
reports just the estimation of the unexpected provision for all targets and bidders, by year.
The model is estimated with the same control variables as in Table 9. The estimates for
the controls are virtually identical and are not reported. Then I correlate the estimated
coefficients and the yearly probabilities of takeover from Figure 1. Table 12 presents
these correlations. If the targets’ level of earnings management is related with the
probability of takeover in the manner I expect, then the correlation between the target
coefficient and the yearly probabilities should be negative. The results support this
expectation; the Pearson correlation is negative, but not statistically significant, while the
Spearman rank-correlation is negative and significant at the 0.07 level. Additionally, the
estimates for the unexpected provisions for the bidders are negative 2 out of 12 years, and
none of the 12 is positive. In addition, there is no observable correlation between the
bidders’ estimated coefficients and the yearly probabilities.
Table 10 presents the total effect for each of the different sets of targets. I split the
targets into the high and low-probability time-periods. In each period I report the total
estimate of the unexpected provision for the public/private and intrastate/interstate splits
of the targets. Any negative provision management is only apparent during the high-
35
probability period. It is strongest for the private intrastate targets, and progressively
weaker for public intrastate targets and private interstate targets. It is non-existent for the
public interstate targets.
The opposite seems to be true during the low probability time-period. The large
positive effect of the time-period makes the public interstate targets a strongly positive
unexpected provision during this period. The private interstate targets and the public
intrastate targets are progressively weaker in the positive direction. The private intrastate
targets are not significantly different from zero.
The results for the Bidders are inconclusive. The coefficient on the bidder variable
in table 9 is negative but not significantly different from zero. The results from the
additional analysis in Table 11 also indicate that the bidders have generally negative (and
never positive) unexpected provisions over the sample period, and there is no relation
between the level of unexpected provision by bidders and the probability of a takeover.
(2) Control Variables
The inferences drawn from the results on the test variables necessarily depend on
the model's ability to control for the expected value of the loan loss provision. The three
variables intended to capture the quality of the loan portfolio work as they are intended.
The positive and significant coefficient on ∆NPL indicates that as banks’ non-performing
loans increase so does the provision for the total portfolio. The negative and significant
coefficient on Allowance indicates that banks on average miss the true value of their net
portfolio at the end of any given period. They decrease the loan provision to make up for
36
an estimate of the loan loss allowance that was high at the beginning of the year. The
significant negative coefficient on ∆Assets indicates that faster growing banks have a
smaller provision, perhaps because the average age of their loans is lower. I also ran the
model substituting a loan growth variable for the change in assets variable. The results
(not presented) are virtually identical.
The results on CapRatio are unexpected. Prior studies have generally documented a
negative relation between capital and the provision. The coefficient on CapRatio is
positive and significant in the period 1987 to 1990, and becomes less positive, but
remains significant in the period 1991 and after.
There is a significant negative coefficient on EBTP for public banks. The
coefficient is less negative, but still significant for private banks. This indicates that
banks that have higher income before their provision have even higher income after the
provision. This indicates that income smoothing is not occurring in this sample. This
result is troubling; perhaps it indicates that the model is still missing a variable that
adequately captures the quality of the loan portfolio. I discuss the results on both the
CapRatio and the EBTP in detail in the sensitivity analysis section that follows.
The size variable is positive and significant, indicating that the larger the bank the
greater the loan loss provision. The Private variable is negative, but not significantly
different from zero. This indicates that the public/private distinction is not a determinant
of loan loss provision.
37
The control variables for changes in state income seem to work as intended. When
the income in the state which the bank is headquartered in increases, the bank's provision
decreases. This seems to indicate that this variable is capturing the expectation for future
default as intended. The effect of a change in state unemployment in the state that the
bank is headquartered in is insignificant. This could be because of differential effects
across consumer and commercial loans. If an increase in unemployment increases the
probability of an increase in consumer loan default, then this should be positive.
However, an increase in unemployment might also signal lower labor costs for employers
and decrease the probability of commercial loan defaults. The results on the change in
interest rates are unexpected. I had anticipated that increases in interest rates would signal
higher default probabilities and result in higher provisions. The significant negative
coefficient on both the change and the lag of the change in rates indicates that as rates go
up, the provision goes down. Perhaps this is an indication that the effect of borrowers
refinancing their fixed rate loans as rates decrease lowers the overall probability of
default.
b. The status-change sample
Table 16 presents the results of the test run on the status-change sample. All of the
control variables are virtually identical to those in the previous tests. As for the target-test
variables, there is no conclusive evidence to support H3. In the target sample the
unexpected provision is negative for yearst-2 through yeart+1. It is significant in yeart-1, in
the correct direction, and in yeart+1, in the incorrect direction. Yeart+2 is positive, but
38
insignificant. The results indicate that the hypothesis of earnings management prior to the
merger and then a reverse of that management might be correct, but the timing is not as
expected. The unexpected provision is negative more than a year before the merger, and
in the year of the merger. While the positive unexpected provision does not occur as
expected, there is at least a non-negative unexpected provision two years after the
merger.
The results for the bidders are supportive of H3. The two years just prior to the
merger are negative. This is consistent with the bidders managing earnings upward prior
to the merger. The expected reversing behavior is not found. While the two years after
the merger are not positive, they are not negative either. This result could indicate that
any reversing behavior either takes longer than two years, or is masked by continued
growth
39
7. Sensitivity Analysis
a. Capital and Earnings
The unexpected results on my capital and earnings variables could be the result of a
number of factors. Prior studies looking at the influence of these two factors have used a
much smaller subset of the population of banks. However, even when I limit my sample
to only large public banks (results not presented) the signs on these two variables are the
same. The time period that I use in this study is also different, and includes more years in
the period after the introduction of risk based capital standards. However, even when I
limit the sample to large banks and the period between 1987 and 1994 the signs on these
variables are still the same. I also estimated the model letting capital vary by year. The
basic result is the same, significant positive coefficients for the early years of the sample,
insignificant coefficients in the middle years, and significant, though smaller in absolute
value than the early years, negative coefficients in the later years. I also estimated the
model letting capital vary across bank size peer groups. All of the groups were positive,
with the largest group being insignificant. None of these tests significantly affected the
test variables.
The prior work that looked at the effect of regulatory capital has some conflicting
findings. Moyer (1990), Beatty et al. (1995) and Ahmed et al. (1999) all support the
influence of capital management, while Collins et al. (1995) does not. The prior studies
set in the period before the 1990 change in capital requirements used Primary capital as
the measure capital. The CapRatio measure I use does not capture the effect of the
40
allowance, perpetual preferred stock or mandatory convertible debt. Ahmed et al. uses a
measure of Primary capital before 1990 and Tier I capital after 1990. Again, there are
similar differences between these measures and my CapRatio variable. These subtle
differences could account for the finding that is contrary to prior research.
The anomalous earnings result is even stronger than the capital, and I tried a
number of model designs to try to determine why. I let the earnings vary across both
years and the public and private distinction. Every year public banks were negative and
significant, and in every year, private banks were positive and significant. The R2 on this
model climbed to 0.4016, but the test variables remained essentially the same. The
earnings smoothing result is not as well supported by prior research as the capital
management result is. Only Collins et al. (1995) finds significant results that indicate the
relationship between the provision and earnings is positive. While Beatty et al. (1995) do
not find a significant positive relationship in their simultaneous equations model, they do
have a finding similar to mine in an ordinary least squares estimate.
Ahmed et al. (1999) claim that the inclusion of their proxy for business failures is
an important determinant of their model, and a prime reason why they do not find support
for the smoothing hypothesis in contrast to Collins et al. (1995). I attempt to control for
the macro-economic factors that should impact the level of the provision with state-by-
state variables that are less precise indicators of each banks exposure to changes in the
economic environment. It is possible that the difference in selection of control variables
impacts the model quite significantly.
41
There are most likely a number of factors that all contribute to the differences
between the findings of prior research and my current findings. Across all of the
aforementioned research the sample and period studied are all different sets of banks in
different time-periods. Each study uses a slightly different model design to test their
hypotheses. Beatty et al. (1995) uses a five-equation simultaneous equation model
estimated using both 2 and 3-stage least squares. Collins et al. (1995) uses a series of
firm-specific regressions. Ahmed et al. (1999) uses a pooled cross-sectional regression
without the use of fixed effects for firm and year. All of these different models have led
to slightly different inferences, and my use of a pooled cross-sectional full fixed-effects
model leads to slightly different results. The final difference among all of these papers is
the selection of and the measurement of the variables meant to control for the non-
discretionary portion of the loan loss provision. Only Ahmed et al. (1999) and the current
study attempt to control for macro-economic effects on the determination of the loan loss
provision. The variables used for this control in the two studies are very different because
of data constraints. Undoubtedly all of these research design differences have led to the
findings of the current study being different from the prior research
b. Sample choices
I decided to test the merger-file sample separately from the status-change sample
because the two groups must have had some fundamental differences. It is costly to
report a subsidiary separately; if a parent could consolidate, it would make sense to do so.
Both regulatory reporting costs as well as the loss of flexibility having to maintain two
42
entity’s capital levels instead of just one are obvious differences. The relative sizes of the
targets and bidders are very different as well. In the merger-file sample, the bidders are
on average 8 times larger than the targets. While the status-change sample, the bidders
are 26 times larger than the targets. All of these reasons convinced me that I should
perform two complementary tests. However, when I include the status-change sample in
the table 9 tests, the results for the targets are similar to those in table 9, and the results
for the bidders become significant. When the 27 bidder observations from the status-
change sample are included in the test in table 9, it results in a significant coefficient for
the bidders in table 9.
43
8. Contributions and Extensions
a. Contributions
This study seeks to provide evidence on the earnings management behavior of
bidders and targets in bank holding company mergers. The principal finding of this study
is that some of the targets of takeovers manage their earnings upwards with the use of the
loan loss provision. They do this only in periods when the expectation of being a target is
high. This indicates that some of the targets of mergers do have the incentive to manage
earnings, but they can only do so in select periods, or if they have some other special
insight into the coming deal.
I also find results concerning bidders that are supportive of those of Erickson and
Wang (1999) even though the firms studied and the methods used are very different. The
results on the bidders from the merger-file sample are marginally insignificant, but in the
proper direction, and the results from the status-change sample are supportive of bidders
managing their earnings upwards using the loan loss provision prior to a merger.
These results should be of interest to accounting researchers, capital market
participants, and regulators. All of these groups have an interest in understanding, and/or
undoing earnings management. The findings from this study, combined with those of
Erickson and Wang (1999), because of the very different nature of the studies, should
lend credibility to both studies and methods.
The results of this study should be of particular interest to regulators. The SEC, the
FDIC, the Federal reserve Board, the Office of the Comptroller of the Currency and the
44
Office of Thrift Supervision have recently come together to form a joint interagency task
force with the purpose of examining the reporting of loan loss allowances in commercial
banks. This task force is concerned with the consistent application of GAAP in assessing
the level of the allowance. To the extent that a bank might step outside the bounds of
GAAP in practicing earnings management, then these results will be of interest to this set
of regulators.
b. Extensions
One major extension that is in progress is meant to determine how, if at all, does
this earnings management affect the outcome of the valuation. I am collecting pricing
data on as many of the merger targets as possible. By estimating a loan loss provision
model without any indicator variables, I can then use the residuals for the targets as a
continuous measure of earnings management. This measure will be regressed on the price
multiples from the targets’ pricing data. A negative relation would indicate that the bidder
was able to undo the earnings management, while a positive relation might indicate that
the targets with the greatest incentive to manage earnings did so the most.
45
46
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49
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The above table shows the probability of being a target in the following year for the bank holding companies that are included in my sample. The average of the low probability years (1987-1991 and 1998) is 0.0285 while the average for the high probability years (1992-1997) is 0.0594.
52
Table 2 Sample Selection Procedures
Number of Observations lost
Number of BHCs lost / remaining
Total Observations
Number of observations in the Y-9 reports with positive total assets for the periods ending on 12-31 for the years 1986-1998.
3,127 19,392
Less BHCs not headquartered in the 50 states or D.C. 114 26 / 3,101 19,278
Less those bank holding companies that have interruptions in their yearly reporting. 1,317 187 / 2,914 17,961
Less the first year to accommodate the use of a change variable and the beginning of the year allowance for loan losses
2,914 409 / 2,505 15,047
Less all observations of any BHC’s that have any observations of either negative capital, missing data or, extreme observations.
473 91 / 2,414 14,574
Final Sample 2,414 14,574
53
Table 3 Distribution of all sample observations
Distribution of observations across years and bank holding company types. Year Total Observations Public Private 1987 1,045 533 512 1988 1,111 555 556 1989 1,181 578 603 1990 1,256 591 665 1991 1,350 612 738 1992 1,336 605 731 1993 1,331 612 719 1994 1,165 583 582 1995 1,179 583 596 1996 1,192 572 620 1997 1,195 549 646 1998 1,233 538 695 Total Observations 14,574 6,911 7,663
Number of BHC’s 2,414 970 1,444
The Public designation indicates that the BHC was listed as a SEC filer in the last period that they appear in the sample. The private designation indicates that the BHC was listed as a SEC non-filer during the last period they appear in the sample.
54
Table 4 Distribution of target observations
Distribution of target observations across years and merger types.
The merger date designation indicates that a bank was involved in a merger in the following year. For example, if a bank were a target at any time during 1991, it would be a target observation in 1990. The public and private designations are as defined in Table 3. The intrastate and interstate designation relates to the relationship between the headquarters of the bidder and target.
55
Table 5 Distribution of bidder observations
Distribution of bidder observations across years and merger types.
The merger date designation indicates that a bank was involved in a merger in the following year. For example, if a bank were a bidder at any time during 1991, it would be a bidder observation in 1990. To ensure that the timing of the bidder observations is correct, the bidders are selected from the targets identified in Table 4. For the bidder observations, a BHC can be involved in multiple mergers, as long as they are involved in at least one merger during the year, then they will be listed as a bidder on the previous 12-31. Because of the nature of a takeover, a bidder type can have more than one bidder observation.
56
Table 6 Descriptive statistics for all observations
Descriptive statistics for the sample 14,574 yearly observations for 2,414 bank holding companies that file Y-9 reports with the federal reserve and meet the data requirements listed in Table 2. Variable Mean SD Min 25% 50% 75% Max ProvRatio 0.00662 0.01079 -0.06165 0.00191 0.00369 0.00709 0.23768 Provision 17.8131 123.180 -115.00 0.24800 0.73500 2.66900 4410.00 Loans 1881.49 9626.47 3.06500 105.863 182.378 502.151 365614 ASSETS 3050.45 15734.4 8.52700 192.219 309.509 827.318 617679 ∆NPL 0.00030 0.01221 -0.16221 -0.00280 0.0000 0.00294 0.20427 CapRatio 0.08423 0.02645 0.01010 0.06821 0.08155 0.09673 0.37421 EBTP 0.01531 0.00975 -0.15282 0.01162 0.01589 0.01986 0.17944 Allowance 0.01634 0.00914 0.00000 0.01109 0.01402 0.01853 0.20342 AssetGrowth 0.07411 0.12071 -1.96555 0.02092 0.06244 0.11551 0.89052 ∆INC 0.05657 0.02144 -0.20702 0.04391 0.05595 0.06756 0.30530 ∆UNP 0.04505 0.25665 -0.62794 -0.11475 0.00102 0.17632 1.68750 ∆RATE -0.18591 1.40447 -2.43660 -1.15340 -0.52340 0.03670 3.07000 Variable Definitions: ProvRatio - is the loan loss provision for the period scaled by the value of gross loans at the end of the period. Provision – is the dollar value of the loan loss provision in millions of dollars. Loans - is the dollar value of loans at the end of the year in millions of dollars. ASSETS - is the end of year total assets measured in millions of dollars. ∆NPL - is the yearly change in non-accrual loans scaled by average total assets. CapRatio - is owner’s equity plus 60% of the loan loss provision scaled by total assets. EBTP - is the pretax net income plus 60% of the loan loss provision scaled by average total assets. Allowance – is the loan loss allowance at the beginning of the year scaled by the gross loans at the beginning of the year. AssetGrowth - is the change in assets during the year scaled by total assets at the end of the year. ∆INC - is the yearly percentage change in the fourth-quarter personal income in the state that the bank is headquartered in. ∆UNP - is the yearly percentage change in the fourth-quarter unemployment payments in the state that the bank is headquartered in. ∆RATE - is the one-year change in the average monthly quotes for the one-year treasury rate in the fourth quarter. That is ((RateOct+RateNov+RateDec)t/3)-((RateOct+RateNov+RateDec)t-1/3).
57
Table 7 Descriptive statistics for target observations
Descriptive statistics for the sample 641 observations for target bank holding companies that are described in Table 4. Variable Mean SD Min 25% 50% 75% Max ProvRatio 0.00697 0.01093 -0.01469 0.00161 0.00379 0.00795 0.11502 Provision 18.8077 123.075 -20.0000 0.23400 0.86500 3.00000 2618.00 Loans 1968.31 9000.14 7.64600 109.938 200.319 684.350 168105 ASSETS 3162.82 14226.6 14.9030 203.395 335.039 1171.20 260159 ∆NPL -0.00137 0.01368 -0.07996 -0.00363 -0.00018 0.00266 0.16211 CapRatio 0.08407 0.02604 0.01041 0.06923 0.08181 0.09692 0.29329 EBTP 0.01382 0.00974 -0.05846 0.00973 0.01484 0.01933 0.05498 Allowance 0.01769 0.01004 0.00198 0.01173 0.01496 0.01978 0.07544 AssetGrowth 0.04665 0.11096 -0.62685 -0.00326 0.04087 0.09372 .061466 ∆INC 0.05587 0.02067 -0.20702 0.04373 0.05503 0.06731 0.11596 ∆UNP -0.00195 0.22870 -0.60317 -0.14286 -0.03882 0.12500 0.84848 ∆RATE -0.05192 1.40722 -2.43660 -1.15340 -0.03660 0.03670 3.07000 Variable Definitions: ProvRatio - is the loan loss provision for the period scaled by the value of gross loans at the end of the period. Provision – is the dollar value of the loan loss provision in millions of dollars. Loans - is the dollar value of loans at the end of the year in millions of dollars. ASSETS - is the end of year total assets measured in millions of dollars. ∆NPL - is the yearly change in non-accrual loans scaled by average total assets. CapRatio - is owner’s equity plus 60% of the loan loss provision scaled by total assets. EBTP - is the pretax net income plus 60% of the loan loss provision scaled by average total assets. Allowance – is the loan loss allowance at the beginning of the year scaled by the gross loans at the beginning of the year. AssetGrowth - is the change in assets during the year scaled by total assets at the end of the year. ∆INC - is the yearly percentage change in the fourth-quarter personal income in the state that the bank is headquartered in. ∆UNP - is the yearly percentage change in the fourth-quarter unemployment payments in the state that the bank is headquartered in. ∆RATE - is the one-year change in the average monthly quotes for the one-year treasury rate in the fourth quarter. That is: ((RateOct+RateNov+RateDec)t/3)-((RateOct+RateNov+RateDec)t-1/3).
58
Table 8 Descriptive statistics for bidder observations
Descriptive statistics for the sample 346 yearly observations for 200 bidder bank holding companies that are described in Table 5. Variable Mean SD Min 25% 50% 75% Max ProvRatio 0.00503 0.00550 -0.00694 0.00228 0.00384 0.00616 0.05566 Provision 67.5508 165.374 -17.202 1.89100 7.39050 57.8590 1305.00 Loans 10391.9 21158.6 5.87700 812.187 2514.16 10184.4 264562 ASSETS 16359.5 33889.4 23.3080 1334.72 4297.83 15429.7 264562 ∆NPL -0.00049 0.00622 -0.3941 -0.00194 -0.00012 0.00169 0.02612 CapRatio 0.08526 0.01908 0.04301 0.07399 0.08253 0.09481 0.24326 EBTP 0.1916 0.00609 -0.02317 0.01632 0.01916 0.02236 0.04786 Allowance 0.01859 0.00872 0.00768 0.01310 0.01573 0.02085 0.07841 AssetGrowth 0.12461 0.13791 -0.50503 0.03992 0.09675 0.18271 0.70276 ∆INC 0.05334 0.02251 -0.20702 0.04150 0.05328 0.06510 0.10923 ∆UNP -0.01437 0.20836 -0.44578 -0.13699 -0.04321 0.08836 0.67532 ∆RATE -0.03515 1.35652 -2.43660 -1.09330 -0.03660 0.03670 3.07000 Variable Definitions: ProvRatio - is the loan loss provision for the period scaled by the value of gross loans at the end of the period. Provision – is the dollar value of the loan loss provision in millions of dollars. Loans - is the dollar value of loans at the end of the year in millions of dollars. ASSETS - is the end of year total assets measured in millions of dollars. ∆NPL - is the yearly change in non-accrual loans scaled by average total assets. CapRatio - is owner’s equity plus 60% of the loan loss provision scaled by total assets. EBTP - is the pretax net income plus 60% of the loan loss provision scaled by average total assets. Allowance – is the loan loss allowance at the beginning of the year scaled by the gross loans at the beginning of the year. AssetGrowth - is the change in assets during the year scaled by total assets at the end of the year. ∆INC - is the yearly percentage change in the fourth-quarter personal income in the state that the bank is headquartered in. ∆UNP - is the yearly percentage change in the fourth-quarter unemployment payments in the state that the bank is headquartered in. ∆RATE - is the one-year change in the average monthly quotes for the one-year treasury rate in the fourth quarter. That is: ((RateOct+RateNov+RateDec)t/3)-((RateOct+RateNov+RateDec)t-1/3).
Table 9 continued Variable Definitions: Dependent Variable: ProvRatio is the loan loss provision for the period scaled by the value of gross loans at the end of the period. Test Variables: Targets - is an indicator variable that is one if the bank is a merger target in the following calendar year. Private Targets - is an indicator variable that is one if Targets is one and if the bank is private. Interstate Targets - is an indicator variable that is one if Targets is one and if the merger is with an out-of-state acquirer. Low Probability Targets - is an indicator variable that is one if Targets is one and the year is 1987-1991 or 1998. Bidders - is an indicator variable that is one if the bank is an acquirer in the following calendar year. Private Bidder – is and indicator variable that is one if Bidders is one and the bank is private. Firm Specific Control Variables: Capital Ratio is owners equity plus the loan loss provision scaled by total assets. Reg is an indicator variable that is one for the period 1991-1998. Change in non-performing loans is the change in non-accrual loans scaled by the amount of loans. Size is the log of total assets. EBTP is the pretax net income plus the loan loss provision scaled by assets. Private is an indicator variable that is one if the bank is a privately-held firm. Macro-Economic Control Variables: Change in state Income is the yearly percentage change in the fourth-quarter personal income in the state that the bank is headquartered in. Change in state unemployment is the yearly percentage change in the fourth-quarter unemployment payments in the state that the bank is headquartered in. Change in interest rate is the one-year change in the average monthly quotes for the one-year treasury rate in the fourth quarter.
61
Table 10 Total effect of unexpected provision
The total effect of unexpected loan loss provision for different groups of targets. Targets High Probability Time Period Low Probability Time Period Public Private Public Private Intrastate -0.00114
(0.0324) -0.00173
(0.0004) 0.00121
(0.9403) 0.000618
(0.8041) Interstate -0.00019
(0.3810) -0.00078
(0.0809) 0.002162
(0.9881) 0.00157 (0.9531)
Total coefficients are the combination of the appropriate estimated coefficients on the test variables from table 9. For example, the total coefficient for a private target in the low-probability period would be the sum of the coefficients on targets, low probability targets, and private targets. The probabilities below the coefficients are based on a chi-square test using White’s adjusted covariance matrix and are adjusted for loss of the 2626 degrees of freedom due to the use of the mean adjustment process to control for fixed effects. They are a single -sided test against the null that the total coefficient is greater than or equal to zero. Panel B The total effect of unexpected loan loss provision for public and private bidders. Bidders Public Private -0.0004
(0.1198) 0.000383
(0.3028)
Total coefficients are the combination of the appropriate estimated coefficients on the test variables from table 9. For example, the total coefficient for a private bidder is the total of the two bid coefficients. The probabilities below the coefficients are based on a chi-square test using White’s adjusted covariance matrix and are adjusted for loss of the 2626 degrees of freedom due to the use of the mean adjustment process to control for fixed effects. They are a single-sided test against the null that the total coefficient is greater than or equal to zero.
62
Table 11 Regression results for bidders and targets by year
Coefficient estimates for all target and bidder observations by year. I form a separate indicator variable for each years’ targets and bidders that correspond with the data in tables 4 and 5. The control variables (not presented) are virtually identical to the model presented in Table 9.
Table 12 Correlation between yearly coefficients and takeover probability
Correlation between coefficient estimates and yearly takeover probabilities. I present the Pearson correlation coefficients in the upper-right and Spearman rank-correlation coefficients in the lower-left. The probability shown below the correlation coefficient is the one-sided probability that the correlation is not negative. Targets Takeover
Probability Target
Coefficient
Takeover Probability 1 -0.45455 (0.0689)
Target Coefficient -0.20580 (0.2606) 1
Bidders Takeover
Probability Bidder
Coefficient
Takeover Probability 1 0.16783 (0.3011)
Bidder Coefficient 0.22641 (0.2396) 1
64
Table 13 Distribution of the status -change targets and bidders
Observations of those banks that have a change of top-tier status but remain on the data files as a separately reported subsidiary.
Table 14 Descriptive statistics for the status -change targets
Descriptive statistics for the sample 116 yearly observations for 107 target bank holding companies that are described in Table 13.
Variable Mean SD Min 25% 50% 75% Max ProvRatio 0.00804 0.01201 -0.00373 0.00183 0.00420 0.00968 0.07028 Provision 17.7291 62.1583 -0.20000 0.15400 0.92400 7.27100 557.300 Loans 1097.03 2234.68 6.22000 85.8920 237.351 833.385 15428.1 ASSETS 1808.22 3296.89 22.8790 166.618 516.280 1821.31 20106.9 ∆NPL -0.00240 0.01384 -0.11082 -0.00394 -0.00045 0.00310 0.02425 CapRatio 0.08431 0.03932 0.03395 0.06194 0.07538 0.09064 0.31166 EBTP 0.01484 0.01528 -0.03686 0.01013 0.01509 0.01944 0.12429 Allowance 0.01962 0.01103 0.00443 0.01229 0.01603 0.02572 0.06673 AssetGrowth 0.07459 0.13750 -0.34613 0.03153 0.06503 0.11285 0.86268 ∆INC 0.06070 0.01563 0.01647 0.05161 0.06098 0.07414 0.08941 ∆UNP 0.09954 0.26876 -0.42047 -0.08247 0.02920 0.36492 0.75179 ∆RATE -0.32000 1.33482 -2.43660 -1.15340 -0.52340 -0.03660 3.0700 Variable Definitions: ProvRatio - is the loan loss provision for the period scaled by the value of gross loans at the end of the period. Provision – is the dollar value of the loan loss provision in millions of dollars. Loans - is the dollar value of loans at the end of the year in millions of dollars. ASSETS - is the end of year total assets measured in millions of dollars. ∆NPL - is the yearly change in non-accrual loans scaled by average total assets. CapRatio - is owner’s equity plus 60% of the loan loss provision scaled by total assets. EBTP - is the pretax net income plus 60% of the loan loss provision scaled by average total assets. Allowance – is the loan loss allowance at the beginning of the year scaled by the gross loans at the beginning of the year. AssetGrowth - is the change in assets during the year scaled by total assets at the end of the year. ∆INC - is the yearly percentage change in the fourth-quarter personal income in the state that the bank is headquartered in. ∆UNP - is the yearly percentage change in the fourth-quarter unemployment payments in the state that the bank is headquartered in. ∆RATE - is the one-year change in the average monthly quotes for the one-year treasury rate in the fourth quarter. That is ((RateOct+RateNov+RateDec)t/3)-((RateOct+RateNov+RateDec)t-
1/3).
66
Table 15 Descriptive statistics for the status -change bidders
Descriptive statistics for the sample of 27 yearly observations for 18 bidder bank holding companies that are described in Table 13.
Variable Mean SD Min 25% 50% 75% Max ProvRatio 0.00586 0.00490 -0.01006 0.00397 0.00614 0.00754 0.01573 Provision 190.666 173.202 -18.6000 45.5540 164.900 250.000 605.000 Loans 29497.5 27465.2 1806.08 9702.85 23217.3 37722.7 123845 ASSETS 47596.1 46718.6 2706.61 16745.9 32346.1 61331.5 185794 ∆NPL -0.00155 0.00503 -0.01931 -0.00422 -0.00067 0.00088 0.00854 CapRatio 0.07605 0.00985 0.04670 0.07081 0.07607 0.08455 0.09022 EBTP 0.01961 0.00381 0.01218 0.01763 0.01870 0.02215 0.02762 Allowance 0.02201 0.00799 0.01084 0.01720 0.02127 0.02393 0.04359 AssetGrowth 0.12478 0.11661 -0.01095 0.05552 0.09598 0.17770 0.54925 ∆INC 0.05372 0.01838 0.01946 0.03697 0.05720 0.06581 0.08941 ∆UNP 0.06328 0.25612 -0.38964 -0.09043 0.06926 0.19035 0.83333 ∆RATE -0.59050 1.52541 -2.43660 -1.30340 -1.15340 -0.03660 3.0700 Variable Definitions: ProvRatio - is the loan loss provision for the period scaled by the value of gross loans at the end of the period. Provision – is the dollar value of the loan loss provision in millions of dollars. Loans - is the dollar value of loans at the end of the year in millions of dollars. ASSETS - is the end of year total assets measured in millions of dollars. ∆NPL - is the yearly change in non-accrual loans scaled by average total assets. CapRatio - is owner’s equity plus 60% of the loan loss provision scaled by total assets. EBTP - is the pretax net income plus 60% of the loan loss provision scaled by average total assets. Allowance – is the loan loss allowance at the beginning of the year scaled by the gross loans at the beginning of the year. AssetGrowth - is the change in assets during the year scaled by total assets at the end of the year. ∆INC - is the yearly percentage change in the fourth-quarter personal income in the state that the bank is headquartered in. ∆UNP - is the yearly percentage change in the fourth-quarter unemployment payments in the state that the bank is headquartered in. ∆RATE - is the one-year change in the average monthly quotes for the one-year treasury rate in the fourth quarter. That is ((RateOct+RateNov+RateDec)t/3)-((RateOct+RateNov+RateDec)t-
1/3).
67
Table 16 Regression results for the status -change sample
Test of reversing accruals using the sample of 116 target observations for those acquired banks that continue to be reported as subsidiary banks on the data files.
Ph.D. Business Administration, Major Field: Accounting, The Pennsylvania State University, Graduation Date: Fall 2000
B.B.A. Grand Valley State University, 1994, Major: Accounting, Minor: Economics
Academic Experience: Assistant Professor, University of Missouri-Columbia, July 2000 –present Graduate Assistant, Penn State University, August 1994 – June 2000
Teaching Awards Graduate Assistant Teaching Award, The Graduate School, PSU, 1999 Ossian MacKenzie Teaching Award, Smeal College of Business, 1998
Professional Association: American Accounting Association
Research Interests: I am interested in empirical research that focuses on the banking and financial services industry. Issues that I am currently working on include earnings management, risk management techniques, and the disclosure of market risks
Current Working Papers: “Earnings Management by Merger Targets: Discretion over the Loan Loss Provision in Commercial Banks”. “Evidence on the Efficacy of Market Risk Disclosures By Commercial Banks” with Anwer Ahmed and Anne Beatty, currently under second review at Contemporary Accounting Research. "The Choice of Interest Rate Risk Disclosures by Bank Holding Companies: The role of Competitive Environment" “Interest Rate Risk Management of Bank Holding Companies: An Examination of Trade-offs in the Use of Investment Securities and Interest Rate Swaps” with Anwer Ahmed and Anne Beatty.
Refereed Presentations: “Hedging by Bank Holding Companies: An Examination of Trade-offs in the Use of Investment Securities and Interest Rate Swaps” with Anne Beatty, Annual Meeting of the American Accounting Association, 1997