We test the hypothesis that smiles perceived as honest serve as a signal that has evolved to induce cooperation in situations requiring mutual trust. Potential trustees (84 participants from Toulouse, France) made two video clips averaging around 15 seconds for viewing by potential senders...

The paper analyzes risk assessment for cash flows in continuous time using the notion of convex risk measures for processes. By combining a decomposition result for optional measures, and a dual representation of a convex risk measure for bounded \cd processes, we show that this framework...

We show that in a standard symmetric Cournot duopoly with unknown demand, the optimal information disclosure policy of an informed benevolent planner is to fully inform one of the duopolists and disclose no information to the other one. We discuss possible extensions of the result.

This paper describes an exploratory field study which was carried out at the SNCF. In a network company like SNCF it is more difficult to adopt the assumptions on which traditional management control is based. Now this company is entering into a new process of change of its control system. Is a...

The European emissions trading scheme (EU ETS) is the centerpiece of Europe׳s climate policy. The system has been undermined variously by the weakness of its regulation, an undesirable overlap with other public policies and the far-reaching economic and financial crisis that caused the market...

Cet ouvrage analyse les enjeux de la relation client selon les diverses fonctions de l'entreprise et propose des outils pour mettre en œuvre des stratégies clients adaptées. Les auteurs s'intéressent tour à tour aux différentes stratégies, des plus classiques (programmes de fidélisation)...

This paper estimates the long-run impact of a large income shock based on regional variations in the 1987–89 locust plague in Mali. We take comprehensive population census data to construct birth cohorts of individuals and compare those born and living in the years and villages affected by...