Cost allocation in dam removal project

In many countries, the dam is removed in consideration of several reasons such as safety. When removing a dam, the polluted sedimentation flowing out of the dam may have an impact to the environment of the river and sea. Thus, dam owners may prefer to wait its removal rather than remove now. This is because they are motivated to wait in order to learn the impact caused by other owners´ removal. In this case, the dams may not be removed efficiently. We discuss the cost allocation which leads to an efficient dam removal by using dynamic game.