We investigate the welfare properties of the one-sctor neoclassic growth model with uninsurable idiosyncratic shocks. We focus on the constrained efficiency notion of the general equiibrium literature, and we demonstrate constrained inefficiency for our model. We provide a characterization of...

We revisit the signalling hypothesis, whereby potential employers use the duration of unemployment as a signal as to the productivity of applicants. We suggest that the quality of sucha signal is very low when the unemployed receive unemployment benefits: individuals have good reasons to remain...

This paper examines the effect of moral hazard on dynamic insurance contract. It models primary prevention in a two period model with classification risk. Agents' preferences appear to play an important role in the determination of preventive effort and prepayment. If absolute prudence is larger...

We examine how moral hazard impacts risk-sharing when risk-taking can be part of the mechanism design. In a two-agent model with binary effort, we show that moral hazard always increases risk-taking (that is the amount of wealth invested in a risky project) whereas the effect on risk-sharing...

This paper studies the optimal unemployment insurance for older workers in a repeated principal-agent model, where the search intensity of risk-averse workers (the agents) is not observed by the risk-neutral insurance agency (the principal). When unemployment benefits are the only available...

That paper formalizes the idea that when the magnitude of the moral hazard phenomenon is not important, the distortions like equilibria multiplicity or equilibrium discontinuity relative to the economic fundamentals disappear. We study a two state of nature insurance model, with a risk neutral...

This paper provides an analysis of the health insurance and health care consumption. A structural microeconomic model of joint demand for health insurance and health care is developed and estimated using full maximum likelihood method using Swiss insurance claims data for over 60 000 adult...

This paper analyzes the efficient design of insurance schemes in the presence of aggregate shocks and moral hazard. The population is divided into groups, the labour force in different sectors for instance. In each group, individuals are ex ante identical but are subject to idiosyncratic shocks....

This paper is a first attempt to connect the heterogeneity in bank efficiency with lending fluctuations and allocation efficiency: there is a trade-off between the two in the presence of heterogeneity in bank monitoring efficiency. The mechanism at hand is twofold. (a) First the rent extracted...

We investigate how moral hazard problems can cause sub-optimal investment in energy efficiency, a phenomenon known as the energy efficiency gap. We argue that such problems are likely to be important for home energy retrofits, where both the seller and the buyer can take hidden actions. The...