This paper examines the revenue effects of certified organic contract farming and of use of organic farming methods in a tropical African context. These are compared with "organic by default" conventional farming systems without contractual relations. Survey data from a medium-size cocoa-vanilla...

Alfred Maizels' work on commodity trade and prices documented trends in a major area of international economic relations. This title elaborates the ideas in the tradition of Maizels' contributions, and discusses and extends these theories in relation to current problems