This paper examines the relative magnitudes of "sheepskin effects" in the returns to education for the three main ethnic groups in the Metropolitan Region of Salvador (MRS), Bahia state, in Northeastern Brazil, and ascertains whether their pattern is consistent with a simple signalling model. We...

This paper, relying on the results of several cross-sectionnal growth regressions, examines the factors determining the sustainability of policy reforms and growth in Africa. Five structural factors are considered as determinants of policy: 1) ethno-linguistic fragmentation, which influences...

We consider the classic Allingham and Sandmo (1972) tax compliance problem in the context of the Choquet-Schmeidler Expected Utility (CSEU) model, using the Non-Extremal Outcome (NEO)-additive capacities proposed by Chateauneuf et al (2002), in which Knightian uncertainty (ambiguity) exists...

When market structure is complete, factor demands by households will be independent of their characteristics, and households will take their production decisions as if they were profit-maximizing firms. This observation constitutes the basis for one of the most popular empirical tests for...

This paper questions the line of reasoning followed by several authors, notably Easterly and Levine according to which ethno-linguistic fragmentation, because it leads to poor policies, is the main factor explaining the 'tragedy' of low African growth. A first set of criticism concerns the model...

The social science literature has done much to document pervasive racial discrimination in Brazil and there is little doubt that a very dark colour is a handicap to social advancement. Nevertheless, very few empirical economic studies have attempted to quantify the impact of ethnic...

When market structure is complete, factor demands by households will be independent of their characteristics, and households will take their production decisions as if they were profit-maximizing firms. This observation constitutes the basis for one of the most popular empirical tests for...

When moral hazard concerns are present, standard contract theory predicts the "Marshallian inefficiency" of sharecropping contracts, in the sense that, ceteris paribus, sharecropping tenants will use different amounts of inputs than owner operators. In this paper, we examine this issue using a...

The purpose of this paper is to examine inter-ethnic differences in the returns to education for the three main ethnic groups in the Metropolitan Region of Salvador (MRS), Bahia state, in Northeastern Brazil. Our results suggest that sheepskin effects take the traditional form of an additional...

A simple model is constructed in which short-term credit is needed to finance the purchase of inputs, in which there is bankruptcy risk, and in which we argue were important characteristics of Egyptian agriculture during the first half of this century, result in aggregate agricultural output...