African Journal of Agricultural and Resource Economics
Journal Africain d’Économie Agricole et des Ressources
Published by the African Association of Agricultural
Economists (AAAE)
ISSN 1993-3738
Volume 15, No. 2 (June 2020)

The starting point for this article is the concept of a commodity exchange. A working definition is a physical or – more likely – electronic marketplace for buying, selling and trading commodities, whether ‘hard’ commodities, which typically are natural resources that must be mined or extracted (gold, rubber, oil, etc.), or ‘soft’ commodities, which are mainly agricultural products or livestock (coffee, corn, cotton, sugar, soybeans, etc.).

Dans le but d’appréhender l’influence des types de contrat de travail sur les performances des exploitations cacaoyères dans le Mbam et Kim au Cameroun, un échantillonnage raisonné a permis de sélectionner 114 exploitants cacaoyers. L’approche à deux étapes recourant aux modèles Data Enveloppent Analysis (DEA) et Tobit censuré a permis d’analyser l’efficacité des exploitations.

Unexpectedly lower yield outcomes (downside risks) challenge farmers’ use of external inputs that can enhance crop productivity. Using household-level panel data collected from Ethiopia, we estimated the effects of crop diversification through maize-legume intercropping/rotation on maize yield distribution and downside risk.