In 1972, Dreze and Modigliani Generalized the Line of Research Initiated by Leland [5] and Sandmo [8] on the Effects of Income Risk on Consumption. They Gave Necessary and Sufficient Conditions for Consumption to Decrease Under Income Risk. However, They Did Not Cover Extensively the Case of...

Dans un Article Recent, Dionne et Eeckhoudt (1987) Ont Montre Que la Mesure Proportionnelle D'aversion au Risque (Definie Dans Leur Article de 1984) Est Utile Pour Etudier L'effet D'un Accroissement de Risque Sur L'offre de Travail. une des Conclusions Majeures Est Que L'effet de L'accroissement...

In This Paper, We Generalize Hoy and Robson (1981) Analysis and We Provide a Necessary and Sufficient Condition for Insurance Not to Be Giffen. the Condition Gives a Bound for the Variation of the Absolute Risk Avesion Which Pemits the Wealth Effect to Be Always Dominated by the Subsitution Effect.