The sogo shosha, Japan's general trading companies, are regarded as a key element in the country's rapid economic growth after World War II and its great success in international trade. In Japanese fiscal year 1975, the ten largest sogo shosha had total sales of $155 billion, accounting for 56 percent of Japan's exports and imports, 18 percent of domestic wholesale trade, and 31 percent of GNP. On the international level, the transactions...