books.google.co.nz - Mark Ramseyer and Frances McCall Rosenbluth show how rational-choice theory can be applied to Japanese politics. Using the concept of principal and agent, Ramseyer...http://books.google.co.nz/books/about/Japan_s_Political_Market_Place.html?id=oEezg6M-gQkC&q=party's&utm_source=gb-gplus-shareJapan's Political Market Place