On theory of the collective choice and the mechanism design including the voting system with some applications to problems of the collective decision making of shareholders

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In this research project, we studied the mechanism design of resource allocation mechanisms from several different points of view when the price mechanism does not necessarily work well. If one cannot use the market mechanism for allocating resources, economic agents should report information on their own preferences to a coordinator (e.g., the government) of the allocation, and the coordinator should aggregate the information and perform the allocation according to a predetermined allocation rule. The voting system is a typical example of such an aggregation rule. We investigated and evaluated several resource allocation mechanisms including the voting mechanism.