Consider an agent facing a risky distribution of losses who can change this distribution by exerting some effort. Should he exert more effort when he becomes more risk-averse? For instance, should we expect more risk-averse drivers to drive more cautiously? In this article, we give sufficient...

We examine the effect of bilateral trade in a concentrated industry under Cournot competition, when firms are regulated by national agencies who care about national social welfare. We allow for differences in costs and market sizes and for asymmetric information between regulatory agencies and...

In the context of a stationary economy, where markets for long-lived real assets open periodically, we analyze the welfare effect of the information structure. At each period, agents receive a signal related to the future dividends of assets. Whenever the quality of the information increases,...

Principal-agent models of moral hazard have been developed under the assumption that the principal knows the agent's risk-aversion. This Paper extends the moral hazard model to the case when the agent's risk-aversion is his private information, so that the model also exhibits adverse selection....

This paper presents a model of media competition with free entry when media platforms are financed both from advertising receipts and customers' subscriptions. We establish a relationship between the equilibrium levels of prices, advertising and entry, the welfare maximizing levels and the...