期刊名称：Discussion Papers / Norwegian School of Economics and Business Administration
印刷版ISSN：0804-6824
出版年度：2007
卷号：2007
出版社：Bergen
摘要：Price-adjusted data on national incomes applied in cross-country compar-
isons are measured with bias. By studying micro data, this paper ¯nds that
the bias is systematic: the poorer a country is, the more its income tends to
be overestimated. Consequently, international income inequalities are under-
estimated.
The bias in the macro price variables (PPPs), is caused by factors ana-
logues to those creating bias in consumer price index numbers (CPIs). Ex-
ploiting this fact, the PPP bias is measured by estimating Engel curves for
food, a method already established to measure CPI bias.
