Introduction

Abstract

When we have to cope with decision making problems in organizations which consist of decision makers with conflicting interests, competition and par­tial cooperation are considered to be the essential problem of the decision makers. Game theory has been used as a powerful analytical tool for such decision making problems of the organizations or competitive systems (e.g. [87, 56, 101, 57, 45]). When a game theoretic approach is used as a resolu­tion method for decision making problems, it is important to examine which solution concept we should employ, and the corresponding computational methods for obtaining the solutions are also indispensable for implementing the results of the examination.