Concurrence et expérimentations de marché, un débat clos ? Un état des lieux pour un nouveau programme de recherche

This article presents a survey of the results obtained by the experiments carried on posted-offer markets. We propose an interpretation based on the existence or the nonexistence of a Nash equilibrium in the market structure used in the experiments. We show that the first experiments did not take into consideration this dimension. Therefore, their predictive power is greatly diminished. Subsequent experiments propose indeed a formal analysis of the existence of the Nash equilibrium. But the design protocols for these experiments lack uniformity. Thus, their results are hardly comparable. We conclude this article by preparing the ground for a future, uniform research.