We derive the characteristics of firm-specific trade policies when industries consist of heterogeneous firms, and show how the informational requirements for policy design are thereby expanded. A consideration of these informational requirements indicates that governments will confront...

En utilisant le modele du Principal-Agent pour decrire la relation qui peut s'etablir entre un trafiquant ou un membre d'une organisation criminelle et un organisme financier, nous montrons qu'il existe des incitations economiques a l'etablissement d'une negociation entre eux pour fixer les...

We consider an economic system composed of interacting potential adopters of a technology. We build a model of interindividual influence effects in which part of the links can be negative, in a context of bounded rational choice. The article shows how the sole relationships topology on a network...

En considerant que l'une des caracteristiques des problemes environnementaux est le niveau d'incertitudequi les accompagne, nous proposons d'etudier les effets de ces incertitudes sur les comportements de choix de portefeuille et d'epargne des agents. Nous montrons alors qu'a l'equilibre...

Preorder representation results are applied to a normative valuation theory for dealers setting bid-ask spreads in a dynamic framework. The preorders induced by ask and bid prices of marketed assets should satisfy some axioms in order for prices not to yield arbitrage opportunities to traders...