The aim of this paper is to explore the channels of transmission of the fluctuations in the world price of cocoa to the consumer of chocolate bars in France. This case study can be considered as an illustration of a more general pattern of asymmetric vertical price transmission in the...

There is a common perception among consumers that the retail prices respond faster to an increase in the price of raw material than to a decrease. This paper aims at testing the existence of such asymmetric price transmission in the cocoa-chocolate chain on the French market. Two types of...

Paradoxically, cotton price stabilization policies in Zone Franc Africa are questioned while their potential benefits seem more important today than at the time of their implementation. Producers face an increasing price volatility and the conditions of implementation of real insurance...