We reformulate Grandmont's and its successors' notion of behavioral heterogeneity such as to get the exact insensitivity of the aggregate budget share function with respect to changes in prices and income, instead of a mere approximate insensitivity. We propose a non parametric set-up such that,...

In the development of the general equilibrium theories, Hicks and Allais played an essential role. We are studying here the contributions which were theirs respectively in Value and Capital (1939) and in the Traité d’économie pure (1943). The accent is put on three points: the theory of...

Short lived arbitrage opportunities arise when prices adjust with a lag to new information. They are toxic because they expose dealers to the risk of trading at stale quotes. Hence, theory implies that more frequent toxic arbitrage opportunities and a faster arbitrageurs' response to these...

This paper aims at explaining observed distinct prices announced by a single supplier for an identical product, in an illegal framework. The modeling proposed here examines an augmented mark-up pricing equation for oligopolistic markets that includes a function of social discrimination. The...

This article studies the effects on economic growth of institutional reforms of financial development in the Central African Economic and Monetary Community. The results obtained using the method of generalized moments on a balanced panel show that the institutional reforms of financial...

Dans cet article nous établissons une formule de l’indice pour une économie où les producteurs utilisent la tarification marginale et nous montrons que, sous des hypothèses de monotonicité sur la correspondance d’excès de demande et les conditions suffisantes du second ordre de...