Human capital plays an important role in the theory of economic growth, but it has been difficult to measure this abstract concept. We survey the psychological literature on cross-cultural IQ tests, and conclude that modern intelligence tests are well-suited for measuring an important form of a...

This paper looks at youth labour market trends concentrating on developing and transition countries. Questions relating to the integration of young people into decent work have in recent times once again begun to occupy a central position in Government Policy issues. Recently co-ordinated...

This paper presents an overview of the youth unemployment problem and youth employment policy principally from the European perspective although it is hoped that much of the coment and analysis is relevant for a much broader range of countries. Its intention is to raise issues rather than...

I show that in a conventional Ramsey model, between one-fourth and one- half of income differences across countries can be explained by a single factor: The steady-state effect of large, persistent differences in national average IQ on worker productivity. These differences in cognitive...