Abstract
In case a water resources development results in a bad influence on basin environment in Japan in recent years, the decision-making based on the consensus building between related stakeholders has become important. However, developments are sometimes planned on condition the characteristics of the area, public opinion, etc. have not fully been taken into consideration. We recognize the process to the result is more importanthan the result itself in the decision-making of a water resources development, so that a systematic process for performing the decision-making is proposed and is applied to the Yoshino River movable floodgate problem in this paper. First, the group promoting development and the group protecting environment are set up as stakeholders, and those utility functions are built. In addition, using group utility function considering convex dependence, we describe the decision-making when self-assertion becomes weak and compromise progresses.
