Abstract. In this paper, we examine role exchange in multiagenty. After defining the utility that reflects an agent’s orientation toward role exchange, I.e., Role Exchange Value (REV) and the agent’s Individual Utility Gain (IUG), we present two theorems and two corollaries that capture properties of proposed utility-based role exchange. Then, we provide an algorithm that predicts IUG for each agent in role exchange. The algorithm is implemented and the results are discussed.