The realities of "KEIRETSU" phenomena : a review of research and arguments on "KEIRETSU" - 瓜生, 不二夫; 砂田, 透; 中橋, 靖; 通商産業省通商産業研究所; 通商産業調査会 (Studies in international trade and industry / Research Institute of International Trade and Industry ; [translated by the International Trade and Industry Research Institute], 1993)