Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
•
–
–
–
–
–
• Date
• Item
• Price
• Description
Use scraping
technology
Connect to thousands
of online retailers every
day
Find individual items Develop real-time
statistics based on
micro-level data
1 2 3 4 5
Store and process
key item information
in a database
CPI
BPP - Online
US Price index – All Items NSA
Compare online and offline prices
BPP App
Note: Retailers independently selected, not necessarily the same as PPP or inflation sources. Preliminary Results.
Illustration: Coke Prices
Identify
index
needs
1
•
•
•
FOOD ELECTRONICS
Coffee_Illy_Ground (excluding decaf) Television_Samsung_LED 32inch basic
Coffee_Regular_Ground (excluding decaf)Television_Samsung_LED 32inch All Other
(including Full HD, Smart, 3D)
Coffee_Regular_Beans (excluding decaf) Television_Samsung_LED 40-43inch basic
Coffee_DecafTelevision_Samsung_LED 40-43inch All Other
(including Full HD, Smart, 3D)
Coffee_All Other Television_Sony_LED 32inch basic
Ketchup_Heinz_RegularTelevision_Sony_LED 32inch All Other
(including Full HD, Smart, 3D)
Ketchup_Heinz_Low Sodium, no salt Television_Sony_LED 40-43inch basic
Ketchup_Heinz_All Other (e.g., flavored)Television_Sony_LED 40-43inch All Other
(including Full HD, Smart, 3D)
Ketchup_All Other_RegularTelevision_Sony_LED 44-47inch All Other
(including Full HD, Smart, 3D)
Ketchup_All Other_All Other (e.g., flavored) Television_LG_LED 32inch basic
Soy Sauce_All Other_RegularTelevision_LG_LED 32inch All Other (including
Full HD, Smart, 3D)
Soy Sauce_All Other_Low Sodium, no salt, light Television_LG_LED 40-43inch basic
EXAMPLES OF PRODUCT CATEGORIES
Identify
index
needs
1 2
•
•
•
•
•
Identify
index
needs
1 2 3
•
•
•
•
•
•
•
Identify
index
needs
1 2 3
•
•
•
•
•
•
•
Identify
index
needs
1 2 3
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Argentina Brazil South Africa
ChinaUnited Kingdom Australia
Pus/Plc = 1/RP
Error from LR relationship estimated in (1)
(1)
LR Pass-through
Speed of Adjustment
(per day)
Implied Half-Lives
(days)
•
•
Related Documents
