</titre> The international standard for development funding has remained at 0,7% of the GNI of the member countries of the Development Assistance Committee (DAC) of OECD since the early sixties. This standard has never been questioned in its foundations, while its calculation corresponds to the...

[eng] Seasonal grain prices in subsaharian Africa . The theoretical framework of seasonal price analisis is an inter-temporal market model of assets with several storing agents, farmers, traders or processing agents, depending on situations. The simplified model underlines the role of each agent...

[eng] Trade associations specialized by products. Between Trade Unity and Specifies Interet . This analysis of trade associations specialized by product aims to a better understanding of the links between two sets : ways of protecting specifics interest and trade societies with largescope. The...