We develop a model where blacks in the private sector earn no returns to education if there are relatively too few educated blacks. Using a sample of black females in the late apartheid KwaZulu to control for labour market specific effects, we find that more than a fifth of labour market...

This paper investigates the competitiveness of the four economies. The second section briefly examines competitiveness through the macroeconomic performance or the ability these countries had to promote, over the past decades, a sustainable external and internal balance. Section 3 is devoted to...

We use the French portion of the 2002 Community Innovation Survey to test how spillovers a®ect the likelihood that ¯rms cooperate in R&D. Unlike most existing empirical studies, our results clearly support well-established theoretical predictions of the industrial organization literature. We...

We test the theoretical prediction that inter-firm spillovers must necessarily be large for the profit differential between cooperation and non-cooperation in R and D to be monotone increasing with them. By using the French data from the 2002 Community Innovation Survey, we find that spillovers...

Information asymmetry is a necessary prerequisite for testing adverse selection. This paper applies this sequence of tests to Mauritian slave auctions. The theory of dynamic auctions with private and common values suggests that when an informed participant is known to be active, uninformed...