Whose Inflation? : A Characterization of the CPI Plutocratic Bias /

Prais (1958) showed that the CPI computed by statistical agencies can be interpreted as a weighed average of household price indexes, the weight of each household determined by its total expenditures. We decompose the difference between the standard CPI and a democratically weighed index (i.e., the...

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Bibliographic Details
Main Author: Ley, Eduardo
Format: Journal
Language:English
Published: Washington, D.C. : International Monetary Fund, 2001.
Series:IMF Working Papers; Working Paper ; No. 2001/059
Online Access:Full text available on IMF
Description
Summary:Prais (1958) showed that the CPI computed by statistical agencies can be interpreted as a weighed average of household price indexes, the weight of each household determined by its total expenditures. We decompose the difference between the standard CPI and a democratically weighed index (i.e., the plutocratic bias) as the product of average income, income inequality, and the covariance between individual price indexes and a parameter related to each good's income elasticity. This decomposition allows us to interpret variations in the size and sign of the plutocratic bias, and also to discuss issues pertaining to group indexes.
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Physical Description:1 online resource (17 pages)
Format:Mode of access: Internet
ISSN:1018-5941
Access:Electronic access restricted to authorized BRAC University faculty, staff and students