Economists have traditionally treated preferences as exogenously given. Preferences are assumed to be influenced by neither beliefs nor the constraints people face. As a consequence, changes in behaviour are explained exclusively in terms of changes in the set of feasible alternatives. Here we...

In December 2003, the Brazilian Congress passed a law that led to a natural personal lending experiment. The law allows banks to offer loans with repayment through automatic payroll deduction, which, in effect, turns future income into collateral. We estimate the impact of the new law using auto...

In this article I first describe the basic principles that parents employ in disciplining their children. The description is based on a survey of parents, the major results of which are that parental sanctions are premised on wrongdoing--not on the mere causation of harm; that parental sanctions...

This article concerns contemporary problems of indigenous peoples and human rights. In general, the human rights of indigenous people occupy marginal space in the global discourse. Overcoming cultural hurdles, and recognizing that indigenous peoples are not objects of juridical concern, not...

In Roman law, manifest theft (essentially, one in which a thief was caught in the act) was punished with a more severe penalty than non-manifest theft. This legal policy seems to contradict the economic theory of efficient deterrence. In this paper, we try to explore how economic analysis of...