This essential Handbook makes underground, hidden, grey economies intelligible and consistently quantifiable. An invaluable tool for statistics producers and users and researchers, the book explains how the non-observed economy can be measured and comments on the reliability of and differences...

Presents the full data set underlying PISA 2006 Volume 1: Analysis. Includes data on student performance in science, student engagement in science, quality and equity in schools, school and system characteristics, and student performance in reading and mathematics.

Purchasing power parities (PPPs) are the rates of currency conversion that try to equalise the purchasing power of different currencies, by eliminating the differences in price levels between countries. The basket of goods and services priced is a sample of all those that are part of final...

The informal sector deprives states of revenues and workers of social protection. It also, however, frequently constitutes the most dynamic part of the economy and creates massive employment. Informal employment is ubiquitous and growing. The financial crisis that began in 2008 has made the...