The wealth dynamics of insurance companies strongly depends on the success of their investment strategies, but also on liquidity shocks which occur during unfavorable years, when indemnities to be paid to the clients exceed collected premia. An investment strategy that does not take liquidity...

(VF)L'objet de cette recherche est de tenter d’expliquer les systèmes de décision et de contrôle lors des projets d’investissement. Pour cela, cette recherche met en évidence le rôle de l'architecture organisationnelle (répartition des droits sur la gestion de décision et sur le...

(VF)Plusieurs théoriciens et praticiens montrent que l’évaluation semble jouer un rôle relativement secondaire dans le processus d’investissement dans la mesure où elle intervient à titre de contrôle ex ante lors d'une phase de ratification. De ce fait, si on admet que l'efficience de...

Within the theoretical framework of organizational architecture, this paper attempts to explain the decentralization of investment decision. To do so, it highlights the role of the allocation of decision rights and control as a factor explaining the effectiveness of investment management. Thus,...

The estimation of multivariate GARCH models remains a challenging task, even in modern computer environments. This manuscript shows how Independent Component Analysiscan be used to estimate the Generalized Orthogonal GARCH model in a fraction of the time otherwise required. The proposed method...

This work gives a brief overview of the portfolio selection problem following the mean-risk approach first proposed by Markowitz (1952). We consider various risk measures, i.e. variance, value-at-risk and expected-shortfall and we study the efficient frontiers obtained by solving the portfolio...