Defining And Measuring The Public Sector: Some International Comparisons

The public sector is defined here to include government plus public enterprises. Historically, economists and statisticians have been more concerned with its separate components than with the public sector as a whole, but it is suggested that the public sector may be an appropriate concept for studying several current problems of economic policy. While there is general agreement as to what constitutes government, countries have differing views about what makes an enterprise public. Differences in country definitions of public enterprises are identified as one of the main problems in making international comparisons for the public sector. Statistics are presented for up to 16 OECD countries on the share of the public sector in total final demand, value added, employment, and net lending. It is argued that there is rarely a unique answer to the question “How big is the public sector?” For most countries judicious selection of data and careful definition will lead to different conclusions about the size and growth of the public sector. Because of the lack of data, it is not possible to analyse public sectors in developing countries in the same detail as OECD countries. The evidence available suggests that while public sectors are about the same size in both OECD and developing countries, public enterprises play a more important role in the latter.