In this paper, it is proved that in the case of pure exchange economy, the oligopoly equilibrium leads to the competitive equilibrium when the economy is replicated an infinite number of times.

The purpose of this note is to build an ethical inequality index which explicitely takes into account the social attitude towards inequlaity, through the actual tax scheme. We give a rough empirical application of this subjective inequality index to the evolution of wage inequality in France...

The aim of this paper is to study the relationship between advertising and sales of French manufacturing firms. First, we use a simple theoretical model compatible with past econometric studies of sales and advertising, and extend it to dynamics. We show that the models that do not account for...

We establish, in infinite dimensional Banach space, a nonconvex separation property for general closed sets that is an extension of Hahn-Banach separation theorem. We provide some consequences in optimization, in particular the existence of singular multipliers and show the relation of our...

We propose in this paper a framework based on a canonical representation of the long run matrix, which can constitute a basis for Granger non-causality testing in a VAR-ECM model using asymptotically Chi-square distributed Wald test statistics, and that unlike Giannini and Mosconi (1992),...

Models of tax competition usually assume a single period framework. This paper sets up a repeated interactions model of tax competition, and establishes conditions under which fiscal policy harmonization can result from repeated interactions between governments. It is shown that fiscal policy...

L'Europe est un partenaire privilegie pour l'economie tunisienne. Ainsi l'integration monetaire de l'Europe a sans doute des implications importantes sur l'evolution des cours de change en Tunisie. Les retombees de ce passage de regime sont difficiles a cerner surtout que l'Euro comme monnaie...