An individual confronts multiple risks she insures by independent specialized monopolies. Though the individual does not act strategically, the indirect competition between monopolies can leave her with part of the surplus. This is the case if her global risk premium is lower than the sum of...

This paper examines the impact of public pensions on saving, life insurance and annuity markets in an adverse selection economy.

[eng] Energy Policy : Strategic Aspects of the Supply Issue.. This article treats energy taxation principles in the light of the need to optimise supply by non-EU suppliers. Our model distinguishes and evaluates the three terms of an optimum tax : budget, environment and strategy. Their values...

[fre] Le débat répartition-capitalisation a été au centre des réflexions sur la retraite au cours des dernières années, et cet article retrace quelques-uns de ses aspects les plus marquants. Il revient d'abord sur le constat démographique initial : quelle est la nature exacte des...

This paper analyzes the role of private storage in a market for a commodity (e.g. natural gas) whose supply is subject to the threat of an irreversible disruption. We focus on the medium term in which seasonality of demand and exhaustibility can be neglected. We characterize the price and...

We propose a model of seasonal gas markets which is flexible enough to include supply and demand shocks while also considering natural gas as an exhaustible resource. Using US data, we estimate the model’s structural parameters and test economically founded restrictions. We analyze,...

This article treats energy taxation principles in the light of the need to optimise supply by non-EU suppliers. Our model distinguishes and evaluates the three terms of an optimum tax: budget, environment and strategy. Their values depend on technological data (output) and habits (consumption)...

We model an economy that alternates randomly between abundance and scarcity episodes. We develop an original method to characterize in detail the structure of the Markovian competitive equilibrium. Accumulation and drainage of stocks are the main focuses. Economically appealing comparative...