A l'origine de ce texte se trouve la question de la signification de l'equilibre intertemporel, dans ses deux approches, celle de la theorie des marches incomplets et celle de l'equilibre temporaire. Plus precisement, la question de la relation entre l'objet mathematique "equilibre...

In this chapter, we derive Yaari's model of decision under risk in connection with Schmeidler's model of decision under uncertainty. The model is illustrated with two applications in insurance theory. Final comments concern the general Rank Dependent Expected Utility (RDEU) model.

We present a fairly simple, feasible, price-quantity strategic market game for pure-exchange economies with finitely many agents, such that the set of pure Nash equilibrium outcomes coincides with the set of competitive equilibria. Our set-up encompasses incomplete, non-convex, non-transitive,...

La critique d'ad hocite est courante en economie, mais elle reste confuse, reposant aussi bien sur des arguments d'ordre heuristique (fondements microéconomiques), que sur des arguments d'ordre empirique (ajustement d'une theorie aux faits). Si l'epistemologie d'inspiration popperienne fournit...

We present a new Fair Queuing policy adapted to low-bandwidth flows, and preventing discrepancy which is encountered under almost all of the existing Fair Queuing policies. Unlike Packet-by-packet Generalized Processos Sharing PGPS and its version Worst-case Fair, Fair Queuing WF2Q which...

Empirical evidence suggest that nominal shocks play a major role in explaining real exchange rate fluctuations. I thus develop a two-country monopolistic competition model with nominal impulses, adjustement costs and price discrimination. I gauge the ability of the model to solve the quantity...

Cet article evalue les apports recents de la theorie economique concernant les effets du renforcement international des droits de propriete industriels, a la suite notamment des accords TRIP. En premier lieu, nous nous placons dans un cadre statique et montrons qu'un tel renforcement doit...

This contribution raises the importance of factors substitutability in multi-sectoral economies. The argument is developed within a basic environment with two goods and two inputs and is based upon a close articulation between the features of the frontier of the production possibility set and...