La France est l’un des pays où les politiques d’exemptions fiscales et d’exonérations de cotisations sociales sont les plus développées. Le coût budgétaire des dispositifs mis en place dans le seul domaine de la protection sociale et de l’emploi dépasse les 90 milliards d’euros...

This article analyzes the impact of the introduction of aquaculture on wild fish stocks and consumer utility, taking into account three key components: (1) the dependence of aquaculture on reduction fisheries for the feeding of the farmed species; (2) biological interactions between the wild...

The integration of immigrants and their children is a burning issue in France. Governments build a large part of their assimilation policies on the labor market. The public sector is reputed to better assimilate minorities because of its entrance exams and pay-scales. In this paper, a comparison...

We investigate the empirical relation between ambiguity aversion, risk aversion and portfolio choices. We match administrative panel data on portfolio choices with survey data on preferences over ambiguity and risk. We report three main findings. First, conditional on participation, ambiguity...

This paper analyzes the optimal allocation of objects which arrive sequentially to agents organized in a waiting list. Applications include the assignment of social housing, deceased donor organs and daycare slots. A mechanism is a probability distribution over all priority orders which are...

The World Summit on Sustainable Development (Johannesburg, 2002) encouraged the adoption of an ecosystem approach. In this perspective, we propose a theoretical management framework that deals jointly with three issues: i) ecosystem dynamics, ii) conflicting issues of production and preservation...

This article analyzes the impact of aquaculture on wild fish stocks and on fish consumption, taking into account its dependence on reduction fisheries for the feeding of the farmed species and consumet preferences. The model includes the demand side and three sectors : and edible fish fishery...

We provide possibility results on the aggregation of beliefs and tastes for Monotone, Bernoullian and Archimedian preferences of Cerreia-Vioglio, Ghirardato, Maccheroni, Marinacci and Siniscalchi (2011). We propose a new axiom, Unambiguous Pareto Dominance, which requires that if the unambiguous...

This article examines the structure of gender and ethnic wage gaps and the distribution of both paid and unpaid work in LAC countries. Its main contribution is to expose the double discrimination endured by women in the région. Indeed, the results indicate that women are highly discriminated in...