Bleischwitz, Raimund; Dittrich, Monika; Pierdicca, Chiara - European Economic Studies, College of Europe - 2012
certification the paper concludes that this will become challenging for business and policy: (a) Central Africa currently is the … international trade dimension of coltan and gives evidence on the dimension of illicit trade of coltan. The authors start from the … addresses mechanisms, actors and measurement issues involved in the international trade of coltan. The final part draws lessons …