Influence of Demographics and Household Specific Price Indices on Consumption Based Inequality and Welfare: A Comparison of Spain and the United States Working paper

摘要

Previous research suggests that income inequality is lower in Spain than in the U.S. This paper studies whether this ranking remains the same when household consumption expenditures are used as a proxy for household welfare. Both inequality and social welfare, as components of economic well-being, are examined. Total household expenditures from each country's 1990-91 consumer expenditure survey are used as the basis for the analysis. For tractability, equivalence scales depend only on the number of people in the household and not any other demographic characteristic. Household specific price indices are used to express the 1990-91 expenditure distributions at winter of 1981 and winter of 1991 prices. Decomposable measurement instruments are used both for the inequality and social welfare analyses. Bootstrap methods are used to produce confidence intervals for all estimates.