Author
Abstract
The field of risk management is usually restricted to the pure risks, opposed to speculative risk due to the market uncertainties. The aim of this article is to evidence the lack of efficiency which may result if pure risks are handled separately and independently. We refer to the portfolio approach to build a global model in which different kinds of decisions influencing the final risk level of the firm are simultaneously considered (such as resources allocation between diversified activities, debt ratio and insurance coverage). The main conclusions concern the optimal level of the insurance expenditures and their allocation between risks. Le domaine du risk management se limite traditionnellement aux risques purs, par opposition aux risques spéculatifs qui proviennent des aléas du marché. L’objectif de cet article est de mettre en évidence la perte d’efficience qui peut résulter d’une gestion cloisonnée et indépendante de ces deux catégories de risques. Nous proposons un modèle global, inspiré de l’approche portefeuille, au sein duquel différents types d’actions influençant le niveau de risque de la firme sont envisagées simultanément : allocation des ressources entre plusieurs activités, choix d’une structure financière, achat d’assurance. Ce modèle permet d’étudier les arbitrages entre les différentes modalité de réduction du risque. Des conclusions précises sont énoncées, elles concernent principalement la détermination du budget assurances et son allocation.
Suggested Citation
Gougeon, Patrick, 1987.
"Assurance et diversification,"
L'Actualité Economique, Société Canadienne de Science Economique, vol. 63(2), pages 187-199, juin et s.
Handle:
RePEc:ris:actuec:v:63:y:1987:i:2:p:187-199
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