Jaffe and Palmer (1997) present three distinct variants of the so-called Porter Hypothesis. The “weak” version of the hypothesis posits that environmental regulation will stimulate certain kinds of environmental innovations. The “narrow” version of the hypothesis asserts that flexible...

This paper examines three main questions: Is it possible to create a market for genetic resources? Is it a perfectly or an imperfectly competitive market? What impact could this market have on the management of Biodiversity in the context of sustainable development? The author analyses the...

Il est de coutume d'associer à la protection de l'environnement l'idée que l'intervention des pouvoirs publics représente uniquement des coûts supplémentaires pour les agriculteurs. Cependant, depuis quelques années, ce paradigme est remis en cause par de nombreuses études. Par exemple,...

We study collusion in an IPV auction with binary type spaces. Collusion is organized by a third-party than can manipulate participation decisions. We characterize the optimal response of the seller to different threats of collusion among the bidders. We show that, contrary to the prevailing view...

Evolutionary theories of economic development stress the role of variety as both a determinant and a result of growth. In this paper we develop a measure of variety, based on Weitzman's maximum likelihood procedure. This measure is based on the distance between products, and indicates the degree...

People vote over risk-sharing rules to cope with random revenues. Risk-sharing rules are enforced through peer pressure : those who comply exert a negative externality on those who do not. People are differently affected by this externality. The author determines the elected risk-sharing rules...

Many researches try to explain consumer’s acceptance and opposition to GMO with focus on social factors. With a causal or an associationist theoretical model, different authors put forward the notion of trust as determining to define the position of individuals. Because as in the present case...

This paper examines an entrepreneur-investor relationship in a stylized model where (i) investment needs are unknown ex ante and arise sequentially (ii) a major decision must be reached at a maturity strage, (iii) this decision depends on entrepreneur's private information, observable by the...

The note points out some restrictions imposed by the notion of ratification. This notion is widely used in the mechanism design literature that assumes that each agent has a veto power. We exhibit allocations that are note ratifiable and nevertheless can be implemented through a mechanism that...

This paper reconsiders the wide agreement that females are more risk averse than males providing a leap forward in its understanding. Thoroughly surveying the literature we first find that gender differences are less ubiquitous than usually depicted. Gathering the microdata of an even larger...