True Multilateral Indexes for International Comparisons of Purchasing Power and Real Income
AbstractI consider the problem of choosing index numbers of purchasing power and real income for international comparisons. I show that the desirable properties of methods based on the Fisher "Ideal" index do not extend to multilateral comparisons, except when tastes are homothetic. By contrast, the Geary method, which underlies the Penn World Tables, provides an approximation to a set of "true" exchange rate indexes which have many desirable properties. In particular, if demands exhibit generalized linearity, the true indexes measure real incomes relative to a hypothetical country whose income is an appropriate average of individual countries' incomes.
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Bibliographic InfoPaper provided by Centre for Economic Performance, LSE in its series CEP Discussion Papers with number dp0329.
Date of creation: Feb 1997
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Other versions of this item:
- J. P. Neary, 1997. "True multilateral indexes for international comparisons of purchasing power and real income," LSE Research Online Documents on Economics 20355, London School of Economics and Political Science, LSE Library.
- Neary, P.J., 1996. "True Multilateral Indexex for International Comparisons of Purchasing Power and Real Income," Papers 96/22, College Dublin, Department of Political Economy-.
- J1 - Labor and Demographic Economics - - Demographic Economics
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