This paper studies data from the wholesale fruit and vegetables market in Marseille. We have details of counteroffers to the prices that were proposed by the seller even when no transaction took place. With a simple heoretical model we analyse the evolution of prices during the day and in...

The original Homo Economicus has progressed from an atomistic and self-interested individual to a socially embedded agent in modern economics. In particular, social interaction models suggest that the individual’s own utility of undertaking an action may be influenced by the number of peers...

The introduction of a reduced working week (RWW) in France has been widely condemned as an arbitrary additional constraint in an already rigid labour market. This article explores the origins of the law, and the reasons for the negative appreciation by economists of this measure. However, it...

In this paper we give a theoretical model of buyers' behaviour on a market for a perishable good where no prices are posted. We show that if buyers learn from their own previous experience there is a sharp division between those who learn to be loyal to certain sellers and those who continue to...

The current crisis has shown how far macroeconomic theory is from the economic phenomena it is supposed to explain. I give some historical explanations for the development of this gap between theory and reality. Then I discuss the solidity of the foundations of the general equilibrium model and...

The economics profession appears to have been unaware of the long build-up to the current worldwide financial crisis and to have significantly underestimated its dimensions once it started to unfold. In our view, this lack of understanding is due to a misallocation of research efforts in...