Community Water Supply: Should The Poor Have To Pay Donald T. Lauria Department of Environmental Sciences and Engineering
Dec 30, 2015
Community Water Supply:Should The Poor Have To Pay
Donald T. Lauria
Department of Environmental Sciences and Engineering
General Stats In Zambia, 1 adult in 4 can read and write; in the
US 100 % can read and write Average life expectancy in Guinea is 40 yrs, 50
yrs in Chad and Sudan, 78 yrs in New Zealand India and Pakistan spend $5/ yr per capita for
health; industrialized countries: $3 to $4,000 In Niger and Burkina Faso 50 % of children
under age 5 suffer from malnutrition; Europe and North America have no measurable malnutrition.
In Bhutan 3% of the births are attended by a health professional; in industrialized countries it is 100%.
General Stats
In Mali 16 out of 100 newborns die at birth; in US fewer than 1 out of 100
The per capita gross national product in Pakistan is $420/ yr, in Cameroon it is $820/ yr, in Great Britain it is $18,000/ yr
Annual energy consumption in industrialized countries is 5 tons of oil /capita; in the 40 poorest countries it is less than one-half ton
Households in the 40 poorest countries spend half their income on food; industrialized countries spend 15%
In Tanzania, Mozambique and Guinea-Bissau external debt is 3 times their GNP
The birth rate in West Africa is over 3% /yr, population will double in 20 yrs; in the industrialized countries population doubling time is more than 100 years.
Health Stats
Each year, 4 billion diarrhea cases due to inadequate water & sanitation cause 2.2 million deaths
The dying are mostly children under age 5 One child dies every 15 seconds: 4/minute= 240/hour= 6,000/day=
170,000/month= 2 million/yr
Water & Sanitation Stats
82% of world population has access to improved water supply and 60% has access to improved sanitation, BUT
More than 1 billion persons (1/6 world’s pop) have no access to improved water supply
2.4 billion persons (2 out of 5) have no access to improved sanitation
Majority without access are in Asia and Africa World population in 1990s increased about 800
million; in that decade, 816 million additional persons received improved water and 747 million received improved sanitation
Expenditures US$ Billion/yr
Global water supply and sanitation 16 Ice cream in Europe 11 Pet food in Europe & US 17 Wine, beer, alcohol in Europe 105 Wine, beer, alcohol in US 78 US Dept Defense in 2002 344 US Dept Homeland Security 2002 26
Organization of Seminar
• What is most important water need?
• Water: is it commercial or social good?
• What should be source of subsidies?
• Which households to subsidize?
• What to subsidize: connections? consumption?
What is Most Important Need?
• Higher Prices
• Revenues don’t usually cover costs
• Systems fall into disrepair
• Users stop paying their bills
• Downward spiral of decline and disuse
Is Water Ordinary or Social Good?
• Ordinary
• Exclusion Accessibility
• Consumption Subtractability Benefits don’t decrease with multiple
users
EXCLUSION
Feasible Infeasible
CONSUMPTION
Individual
Individual Goods
Common Pool
Goods
Joint Toll Goods
Collective Goods
EXCLUSION
Feasible Infeasible
CONSUMPTION
IndividualFood
Clothing
TV Sets
Police & Fire
Hway Travel
Well Water
JointMovie
Cable TV
Telephone
Street Lighting
Network TV
Nat’l Defense
Worthy Goods (Merit Wants)
• Worthy goods are usually toll goods
• Society removes barriers to access…
• Because benefits to society are LARGE
• Benefits are both private & public (externalities… spillovers)
• WGs are provided for everyone
• Paid for from taxes a/o user revenues
Examples of Worthy Goods
• Public Schools & Colleges
• Chapel Hill Buses
• Museums
• Vaccinations
• Highways
Should Water Be Subsidized?
• Water is like an individual good
• Possible to restrict access by charging fee
• Water benefits mostly private
• Small spillovers to society
• Thus… it is hard to justify subsidies
• Sanitation is different: easier to justify
• Substantial spillover benefits w/ sanitation
What Should Be Source of Subsidies?
• If society decides to subsidize…
• Government is unreliable
• Revenues from water users more reliable
• But “rich” households are hard to identify
• Likely sources: industries & large users
• These sources are easy to identify
Problem With Industries
• Industries are needed to generate basic revenue to sustain water system
• If water price is too high, they will disconnect and develop their own source
• No economic rationale to charge them more than households
Problem With Large Users
P1
P2
Q1 Quantity
Price
Block 1 Block 2
IBT with lifeline rate for “the poor”
Problem With Large Users
• Poorest households (in tenements) share single meter, which…
• Puts their consumption in high-price block
• Same for individual households that sell to poor neighbors without connections
• Thus, poorest users subsidize the wealthy
Which Houses Should Be Subsidized?
• Consider subsidies for connections…• Hard to subsidize squatters (the poorest)• Their communities are not stable• No land use plans for squatter areas• Risky to lay expensive pipe in unstable
areas without roads and ROWs• Thus, “the poor” with tenure are targeted• But owners are not “the poorest”
Hard to Subsidize Poor Households With Land Tenure
• No clear criteria for identifying “the poor”
• 3 approaches
– Screen each applicant
– Screen by neighborhood
– Offer different technologies
• These approaches are expensive
What Seems To Be Needed
• Can’t subsidize consumption unless rich use more water than poor
• Hard to get info ex ante for tariff design
• Subsidizing connections is more important than subsidizing consumption
• Subsidize all connections, not just “poor”
• Run temporary lines into squatter areas
• Subsidize private water resellers
Questionnaire
1. Most important need?
a. Better treatment
b. More subsidies
c. Better designs
d. Higher prices
2. Ordinary or social?
a. Ordinary
b. Social
3. Subsidize water?
a. Yes
b. No
4. Source of subsidies?
a. Taxes
b. Rich households
c. Large users
d. Industries