The present volume provides a timely collection of material on the subject of international comparisons, contributed by leading scholars from an extensive range of relevant disciplines and geographical backgrounds. The papers in this volume have been classified into two broad groups united by overlapping themes. Part I includes essentially empirical papers intended to provide a clear picture of the different types of international comparisons that have been undertaken by various organizations and individuals. The papers relate to empirical studies of different sectoral and national income aggregates at both regional and global levels. The papers in Part II deal with methodological and analytical issues. Discussion of the appropriateness of various aggregation methods for international comparisons accounts for a major component of this section. The volume provides a set of stimulating studies on international comparisons of prices, output and productivity, and will provide a useful reference source for many interested readers around the world.

The 1993 SNA represents a major advance in national accounting. While updating and clarifying the 1968 SNA, the 1993 SNA provides the basis for improving compilation of national accounts statistics, promoting integration of economic and related statistics, and enhancing analysis of economic developments. The 1993 SNA deals more clearly with relationships between economic flows (such as production, income, savings, accumulation, and financing) and links between these flows and stocks. At the same time the 1993 SNA reflects the many significant developments that have taken place in financial markets and completes the integration of balance sheets into the system. The 1993 SNA also suggests how satellite accounts (e.g. environmental accounts) and alternative classifications (e.g., through social accounting matrices) an be used to augment the central framework of the system.

"From its inception, the Penn World Tables (PWT), building on the International Comparisons Program (ICP) of the United Nations, has sought to compare the standard of living of individuals in different countries. That is, the term "real GDP per capita" as reported in the PWT is intended to represent the ability to purchase goods and services by a representative agent in the economy. The same is true of benchmark comparisons as published by the United Nations, Eurostat, or OECD. But this expenditure-side interpretation of real GDP is quite different from the uses to which benchmark ICP and PWT data are frequently applied, such as in growth regressions, where "real GDP" is intended to reflect the production side of the economy. In this paper the authors propose a new approach to international comparisons of real GDP measured from the output side. They modify the traditional Gary-Khamis system, which measures real GDP from the expenditure side using real domestic expenditure, to include differences in the terms of trade between countries. The analysis shows that this system has a strictly positive solution under mild assumptions. On the basis of a set of domestic final output, import, and export prices and values for 151 countries in 1996, differences between real GDP measured from the expenditure and output side can be substantial, especially for small open economies."

Economists wish to compare prices, real income, and output across countries and regions for many purposes. In the past, such comparisons were made in nominal terms, or by using exchange rates across countries, ignoring differences in price levels and thus distorting the results. Great progress has been made in interspatial comparisons in the past thirty years, but descriptions and discussions of the new measures have been scattered in unpublished or inaccessible papers. International and Interarea Comparisons of Income, Output, and Prices includes discussions of developments in the United Nations International Comparison Program, the largest effort in this field, and in the ICOP program on the production side, including efforts in both to extend the comparisons to the formerly planned economies. Other papers in this volume explore new programs on interspatial comparisons within the United States. There are also theoretical papers on how interspatial comparisons should be made and several examples of uses of such comparisons.

This is an update of OECD 2006 "Understanding National Accounts". It contains new data, new chapters and is adapted to the new systems of national accounts, SNA 2008 and ESA 2010.