The present study which started in 1999 is framed in the INCOYAM project. Marketing systems of yam are analyzed in three West- African countries: Cote d'Ivoire, Benin and Nigeria. Surveys have been carried out on urban (wholesales and retailers) and rural (collectors) traders. Cities and...

Agricultural production almost needs to double in the 21st century, putting tremendous pressure on agricultural resources. Most food production increases must come from more agricultural intensification in the South. This advances the need for a new green revolution: higher productivity and at...

We develop a welfare framework, which explicitly recognizes that research protected by intellectual property rights generates monopoly profits. The result is a simulation model, shaped to the European sugar sector, and enabling to assess the size and distribution of the benefits of transgenic...

In literature, impact estimates of agricultural biotechnology vary strongly according to the region, the crop, the year, the scale, and the methodology of the study. Therefore, this paper provides a methodological background for analysing, interpreting, and comparing these estimates. All...

The decision of whether to release transgenic crops in the EU is one subject to flexibility, uncertainty, and irreversibility. We analyse the case of herbicide tolerant sugar beet and reassess whether the 1998 de facto moratorium of the EU on transgenic crops for sugar beet was correct from a...

Crop protection is a part of the agricultural production system. In Europe during the past century, this system has been subject to innovation, stemming from the second agricultural revolution of the Modern Time. Today we are on the crossroad of three alternative agricultural systems....

We develop a theoretical welfare framework, which explicitly recognizes that research protected by intellectual property rights generates monopoly profits. The result is a simulation model, shaped to the European sugar sector, and enabling to assess the size and distribution of the benefits of...

In this working paper we attempt to establish a general analytical framework for the calculation of the micro- and macroeconomic benefits and costs of biotechnology applications in EU agriculture. Since these innovative applications are typically protected by intellectual property rights,...