Application of Modified Maximal Benefit-Cost Ratio in Stock Exchange of Tehran

In this paper, we investigate the problems of consensusmaking among institution in stock exchange with multiple criteria for evaluating performance when the players (institutions) are supposed to be egoistic and the score for each criterion for a player is supposed to be a positive score. Each institution sticks to his superiority regarding the criteria. These papers introduce the model for compute maximal benefit-cost ratio, for each institution and their coalitions and provide a new scheme for avoiding zero weight occurrences in this model. Then using these models successful institutions or coalitions can be obtained.