TY - JOUR AU - Hosono, Kaoru AU - Sakai, Koji AU - Tsuru, Kotaro TI - Consolidation of Banks in Japan: Causes and Consequences JF - National Bureau of Economic Research Working Paper Series VL - No. 13399 PY - 2007 Y2 - September 2007 DO - 10.3386/w13399 UR - http://www.nber.org/papers/w13399 L1 - http://www.nber.org/papers/w13399.pdf N1 - Author contact info: Kaoru Hosono Gakushuin University Faculty of Economics Mejiro 1-5-1, Toshima-ku Tokyo 171-8588 JAPAN Tel: 81-3-5992-4909 Fax: 81-3-5992-1007 E-Mail: kaoru.hosono@gakushuin.ac.jp Koji Sakai Research Fellow of the Japan Society for the Promotion of Science 2-1 Naka, Kunitachi Tokyo 186-8601 Japan E-Mail: ed042002@srv.cc.hit-u.ac.jp Kotaro Tsuru Research Institute of Economy, Trade, and Industry 1-3-1, Kasumigaseki, Chiyoda-ku Tokyo, 100-8901, JAPAN Fax: 81-3-3501-8416 E-Mail: tsuru-kotaro@rieti.go.jp M1 - published as Kaoru Hosono, Koji Sakai, Kotaro Tsuru. "Consolidation of Banks in Japan: Causes and Consequences," in Takatoshi Ito and Andrew K. Rose, editors, "Financial Sector Development in the Pacific Rim" University of Chicago Press (2009) M3 - presented at "18th Annual East Asian Seminar on Economics", June 22-24, 2007 AB - We investigate the motives and consequences of the consolidation of banks in Japan during the period of fiscal year 1990-2004 using a comprehensive dataset. Our analysis suggests that the government's too-big-to-fail policy played an important role in the mergers and acquisitions (M&As), though its attempt does not seem to have been successful. The efficiency-improving motive also seems to have driven the M&As conducted by major banks and regional banks in the post-crisis period, while the market-power motive seems to have driven the M&As conducted by regional banks and corporative (shinkin) banks. We obtain no evidence that supports managerial motives for empire building. ER -