First, in relation to homogeneity in the administrative system, the government needs to pay attention to the notion of diversity management. Among the various dimensions of this concept, the essence of diversity in the context of the civil service in Japan is to replace Todai (Tokyo University) domination with civil servants from diverse socioeconomic backgrounds. According to Wise and Tschirhart (2000) in their analysis of the extensive research on diverse management, no study has addressed the correlation between diversity and corruption. Yet we may hypothesize that greater heterogeneity could reduce the level of organizational corruption. Behind such a hypothesis lie two faces of homogeneity. On one hand, homogeneity of the Japanese civil service has cultivated cohesion and conformity, core values of Japanese bureaucrats (Castells 2000b). On the other hand, this trait has also fostered a sense of elitism among civil servants. this elitism has enabled them to enjoy privileged social status, administrative powers, and wider discretion in policy making, all of which may serve as causes of corruption. In this regard, it is imperative for Japan to eliminate the concern that diversity may hamper group cohesion, communication, and performance. Rather, diversity management, represented by the interaction of individuals and groups with varying degrees of heterogeneity, may reduce the level of corruption and expand the creative and innovative problem-solving capacity of the system as well ( Soni 2000 ).