克鲁格曼国际经济学课件英文版，The Classical and Neo Classical economists believed that participation in international trade could be a strong positive force for economic development. There are some related reasons that can be analyzed to support this argument. One approach to development is to concentrate in producing export in industrial sector. Promoting exports could directly lead to economic development either through encouraging production of goods for export or allowing accumulation of foreign exchange which enables importation of capital inputs indispensable for export.