We study the evolution of an educational system which is founded on a hierarchical differentiation between technical and general education, with a superior social status attached to general. The resulting dynamic political equilibrium is best summarized by the ratio of vocational to general...

This paper investigates the impact of twentieth-century European colonization on African countries. We find that colonization mattered for growth. The following had some beneficial growth effects: being a dependency rather than a colony; being a colony of France or the United Kingdom rather than...

This essay investigates the determinants of the growth performance of Africa. I start by illustrating a broader research agenda which accounts not only for basic economic and demographic factors, but also for the role of history and institutional development. After reporting results from...

We use new data on the timing of the transition to agriculture, developed by Putterman and Trainor (2006), to test the theory of Diamond (1997) and Olsson and Hibbs (2005) that an earlier transition is reflected in higher incomes today. Our results confirm the theory, even after controlling for...

By promoting some of the poor into the middle class and thereby co-opting them into the system, a self-interested elite reduces the threat of political instability and the risk of being overthrown. Co-optation is accomplished through the transfer of resources to some of the poor, enabling them...

We study the evolution of an educational system founded on a hierarchical differentiation between vocational and general education, with vocational playing an inferior role in the society. The dynamics are best summarized by the ratio of the fraction of the population in vocational to that in...

This essay investigates the determinants of the growth performance of Africa. I start by illustrating a broader research agenda which accounts not only for basic economic and demographic factors, but also for the role of history and institutional development. After reporting results from...

The purpose of this paper is to suggest that a fundamental shift in Europe, along with the other OECD countries, is taking place. This shift is from the managed economy to the entrepreneurial economy. While politicians and policy-makers have made a plea for guidance in the era of...

This paper is a reflective survey of past and recent econometric work on the growth of firms. Most of this work suggests that firm size follows a random walk; i.e. that corporate growth rates are random. The survey documents this, and shows what a strong result this is by contrasting it with...

Combining unique data bases on emissions with sectoral output and employment data, we study the sources of the fall in world-wide SO2 emissions and estimate the impact of trade on emissions. Contrarily to concerns raised by environmentalists, an emission-decomposition exercise shows that scale...