Despite a large body of literature on the topic, empirical tests of real option models are scarce. The lack of data offers an initial explanation for this. However other intrinsic reasons could well explain why real options are difficult to test on large-scale studies. We show that the use of...

The European Union enforced respect of human rights and democratic principles an essential elements of all its preferential and non preferential trading agreements since the beginning of the 90's. In all EU external agreements, an essential element would imply that the EU can impose sanctions...

The intention of this article is to take advantage of recent discoveries in econometrics (ARCH processes) to reformulate classical tests about the efficiency of financial market. It is also intended to improve the quality of stock index forecasts. Classical tests about the efficiency are...

The trading systems used on financial markets differ in terms of matching procedures, selected norms to write contracts, existence or not of intermediaries to ensure liquidity, market transparency... We are interested in measuring the direct effect on market specifics of a matching procedure...

L’objet de la communication est de produire de la connaissance praticable sur l’organisation du travail, en construisant de nouveaux indicateurs de mesure de l’organisation du travail, quantitatifs et qualitatifs. Nous testons leur validité et leur fiabilité sur la base des données...

“Why are so many models designed and so few used” is a question often discussed within the Operational Research (OR) community. The formulation of the question seems simple, but the concepts and theories that must be mobilised to give it an answer are far more sophisticated. Would there be a...

Dans cet article nous spécifions et estimons des équations de salaire, de participation au marché du travail et d’offre de travail dans lesquelles figurent des variables sanitaires. Nous utilisons des données issues d’une d’enquête ménage, conduite en 1997 dans la capitale malgache,...