This article questions the importance of agricultural press for the majoritarian farmers’union, the FNSEA, dealing with the question of its representativeness. At first, the authors highlight a phased trend towards press concentration to the benefit of majority union. During challenging times,...

Theoretical and methodological difficulties explain the low level of knowledge on rural employment, but political and theoretical reasons are impulsing new research. The author examines the three main logics governing present research : development, spatial distribution of employment, historical...

This paper is devoted to regret lower bounds in the classical model of stochastic multi-armed bandit. A well-known result of Lai and Robbins, which has then been extended by Burnetas and Katehakis, has established the presence of a logarithmic bound for all consistent policies. We relax the...

This paper studies investments in new markets where more than two (anticipated) identical competitors are present. In case of three firms an accordion effect is detected: an exogenous demand shock results in a change of the wedge between investment thresholds of the first and second investor...

This article deals with optimal insurance contracts in the framework of imprecise probabilities and adverse selection. Agents differ not only in the objective risk they face but also in the perception of risk. In monopoly, a range of configurations that VNM preferences preclude appears: a...