Date of Award


Document Type


Degree Name

Master of Science (MS)


Political Science

First Advisor

Dr. Joong-Gun Chung


This thesis analyses the Japanese political party system. Both the historical and current situations are examined. The Japanese electoral system before 1993 was multimember district with nontransferable vote. The new system for the lower house from 1994 to the present is a mixture of single member district and proportional representation district, which allows dual candidacy. The main purpose is analyzing the effective distribution of the number of political parties in terms of vote and seat share from the postwar period to the present, and how it has been changed since the 1994 electoral reform.


A Thesis Presented to the Department of Political Science and the Faculty of the Graduate College University of Nebraska In Partial Fulfillment of the Requirements for the Degree Master of Science University of Nebraska at Omaha. Copyright Shinya Bamba May, 2001