Global income inequality and cost-of-living adjustment : the Geary–Allen world accounts
Working paper
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Date
2012-10Metadata
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- Discussion papers (SAM) [657]
Abstract
Standard ways of measuring real income are known to be inconsistent with
consumer preferences. We provide preference-consistent estimates of real income,
based on the income-specific price indices that are consistent with nonhomothetic
preferences. We find that existing measures, such as Geary, GEKS and
GAIA, create systematic biases: the poorer is a country, the more its income is
overestimated by these measures. Consequently, international income inequality
is underestimated by the same measures.