OECD Economics Department Working Papers

Working papers from the Economics Department of the OECD that cover the full range of the Department’s work including the economic situation, policy analysis and projections; fiscal policy, public expenditure and taxation; and structural issues including ageing, growth and productivity, migration, environment, human capital, housing, trade and investment, labour markets, regulatory reform, competition, health, and other issues.

The views expressed in these papers are those of the author(s) and do not necessarily reflect those of the OECD or of the governments of its member countries.

English, French

On Aggregation Methods of Purchasing Power Parities

The development of purchasing power parities as converters of national accounts aggregates to comparable volume figures is important for international economic comparisons. This study is primarily concerned with the aggregation of price relativities to basic heading level: that is, the level below which there are no expenditure weights available across all of a given group of countries. Eight possible methods of aggregation to basic heading level are identified and appropriate summary statistics developed to assist in the subsequent practical investigation of these methods. This is undertaken using price data for 37 basic headings in ten OECD countries ...


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