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ifo Institut – Leibniz-Institut für Wirtschaftsforschung an der Universität München >
CESifo Working Papers, CESifo Group Munich >
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http://hdl.handle.net/10419/46542
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| Title: | | International income inequality: Measuring PPP bias by estimating Engel curves for food  |
| Authors: | | Almås, Ingvild |
| Issue Date: | | 2010 |
| Series/Report no.: | | CESifo working paper: Social Protection 3247 |
| Abstract: | | Purchasing power adjusted incomes applied in cross-country comparisons are measured with bias. In this paper, we estimate the purchasing power parity (PPP) bias in Penn World Table incomes and provide corrected incomes. The bias is substantial and systematic: the poorer a country, the more its income tends to be overestimated. Consequently, international income inequality is substantially underestimated. Our methodological contribution is to exploit the analogies between PPP bias and the bias in consumer price index (CPI) numbers. The PPP bias and subsequent corrected incomes are measured by estimating Engel curves for food, which is an established method of measuring CPI bias. |
| JEL: | | D10 E31 F01 |
| Document Type: | | Working Paper |
| Appears in Collections: | | CESifo Working Papers, CESifo Group Munich
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