In this article, tests for globalization and contagion are separated using an ex ante definition of crises, and contagion tests are neutralized with respect to globalization effects. A large database is constructed to study the stability of correlation matrices for four asset classes : equities,...

The investment procedure prescribes the stages and tests through which all investment projects must pass before being accepted or not. It governs the conditions of acceptability and constitutes a powerful device of a priori control. In this paper, we intend to understand how investment...

The investment procedure prescribes the stages and tests through which all investment projects must pass before being accepted or not. It governs the conditions of acceptability and constitutes a powerful device of a priori control. In this paper, we intend to understand how investment...

We use several measures to compare the performance of a large set of Dow Jones Islamic indexes to selected benchmarks. We test the performance over the whole period and then focus on extreme events. We identify extreme events as the 100 lowest and the 100 highest conventional World Indexes daily...

The electronic marketplaces, as an interorganizational entity, is not limited to a transactional dimension. Indeed, those companies that survived the initial consolidation have increasingly expanded their functions and contribute to a new competition dynamic. This new competitiveness has set off...

Les 3 essais sont les suivants : 1. "Les leçons du boom technologique américain : place et rôle des technologies de l'information (TI) dans l'économie américaine" ; 2. "La concurrence" ; 3. "Les relations interentreprises"

Conversion to the single European currency, the euro, requires good management of the transition on the part of companies, both internally and externally, taking into account the importance of communication which is necessary to win consumer confidence. Through the unification of the European...