What have we learned about productivity in the past two decades? In this article, Andrew Sharpe from the Centre for the Study of Living Standards reviews a recently published NBER volume entitled New Development in Productivity Analysis, edited by Charles R. Hulten, Edwin R. Dean, and Michael J....

The measurement of the hidden economy is necessary to ensure exhaustiveness of Gross Domestic Product and thus be able to conduct comparisons between countries. The part of firms activity that is not declared to tax authorities inevitably evades statistical observation. In France, it is possible...