This paper proposes an equilibrium approach to belief manipulation and deception in which agents only have coarse knowledge of their opponent's strategy. Equilibrium requires the coarse knowledge available to agents to be correct, and the inferences and optimizations to be made on the basis of...

This article focuses on the impact of derivative markets on the American crude oil market. It first analyses the depth and liquidity of the market, and shows that there is a huge increase in activity from 1989 to 2003. Then the study focuses on prices volatility. The latter is separated into two...

This article focuses on the impact of derivative markets on the American crude oil market. It first analyses the depth and liquidity of the market, and shows that there is a huge increase in activity from 1989 to 2003. Then the study focuses on prices volatility. The latter is separated into two...

Using several unique data sets on wage agreements at both industry and firm levels in France, we document stylized facts on wage stickiness and the impact of wage-setting institutions on wage rigidity. First, the average duration of wages is a little less than one year and around 10 percent of...

This article is centred on the volatility of commodity prices. It presents the instruments offering a protection against volatility and shows how they can be employed. The first section exposes these derivative instruments. It distinguishes them in step with the need they respond and the way...

This paper uses a stylised asset-pricing model to show that sunspots may cause asset returns to be predictable, a widely documented feature of many speculative markets. This result parallels and extends previous works showing that sunspots render asset prices excessively volatile.

Acteurs incontournables des marchés financiers, les hedge funds demeurent mal connus. Qui sont-ils ? Quelles sont leur techniques de gestion ? Qu'offrent-ils de différent en termes de performance et de risque ?

This paper analyses the dynamic implications of an asset-pricing model with incomplete participation due to entry costs. It is shown that heterogeneity in entry costs can lead to the existence of multiple stochastic sunspot equilibria, whereby the number of agents in the market and asset prices...