Efficacité et risque moral ex post en assurance maladie

When most health economists use the term « moral hazard », they usually refer to the fact that insured individuals tend to have higher health expenses than those who have no or less coverage. In 1968, Pauly demonstrated that this moral hazard generates a welfare loss. Detailing the reasons why insurance leads to higher expenditure, we propose a review of the subsequent theoretical literature which shows that Pauly may have overestimated the …