災害復興における公共空間と共同的実践の変容に関するゲーム論的研究

Abstract

Environmental transformation during a disaster recovery process may change a local convention and relationships. Since the local residents’ behavior (practice) is a collective practice with other residents and local environment, environmental transformation may lead to an alternative choice of practice. Applying game theory, this study formulates the structure of collective practice to analyze the feasibility of local “traditional” and “innovative” practice, the transfiguration process of its ratio, and so on. Moreover, focusing on the different experiences in traditional practice and asymmetric information between old timers (people who have been living in the community since before disaster) and newcomers (people who have emigrated to the community after disaster), this study reveals these effects on the choice of the local practice and proposes the measurement for the coexistence of various practices.