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...

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,...

Minimum variance and equally-weighted portfolios have recently prompted great interest both from academic researchers and market practitioners, as their construction does not rely on expected average returns and is therefore assumed to be robust. In this paper, we consider a related approach,...

The age structure of the French population has been experiencing dramatic changes over the past decades and is likely to do so in a near future. The increasing proportion of elder people may modify the saving behaviour of French households. The level of saving, as well as its composition, may be...

An essential element of any realistic investment portfolio selection is the consideration of transaction costs. Our purpose, in this paper, is to determine the maximum return and the corresponding number of securities to buy giving such return, whenever practical constraints features related to...

The age structure of the French population has been experiencing dramatic changes over the past decades and is likely to do so in a near future. The increasing proportion of elder people may modify the savings behavior of French households. The level of savings, as well as its composition, may...

A discrete time probabilistic model, for optimal equity allocation and portfolio selection, is formulated so as to apply to (at least) reinsurance. In the context of a company with several portfolios (or subsidiaries), representing both liabilities and assets, it is proved that the model has...