Mixtures of distributions are present in many econometric models, such as models with unobserved heterogeneity. It is thus crucial to have a general approach to identify them nonparametrically. Yet the literature so far only contains isolated examples, applied to specific models. We derive the...

Many modern estimation methods in econometrics approximate an objective function, through simulation or discretization for instance. The resulting "approximate" estimator is often biased; and it always incurs an efficiency loss. We here propose three methods to improve the properties of such...

In this book Bernard Salanié studies situations where competitive markets fail to achieve a collective optimum and the interventions used to remedy these so-called market failures. He includes discussions of theories of collective decision making, as well as elementary models of public...

This concise introduction to the economic theories of taxation is intuitive yet rigorous, relating the theories both to existing tax systems and to key empirical studies. The book offers a thorough discussion of the consequences of taxes on economic decisions and equilibrium outcomes, as well as...

Consider an agent facing a risky distribution of losses who can change this distribution by exerting some effort. Should he exert more effort when he becomes more risk-averse? For instance, should we expect more risk-averse drivers to drive more cautiously? In this article, we give sufficient...

Weitzman's idea of a "share economy" based on profit-sharing has met with several objections, one of which is that it would impose unacceptable levels of risk on wage-earners. This paper answers this objection by proposing a variant of profit-sharing in which workers are given a share of...