Abstract
When we think about the disaster prevention, it is important for us that we examine an accurate cost-benefit of measure, characteristic of inhabitants living in the dangerous area and what kind of reaction for a disaster risk. In this study, we investigated the reaction to disaster risk of inhabitants by doing questionnaire survey for 3,000 households in Tokyo. As a result, in dangerous area, there is a lot of household of low income groups, and cognitive rate of the objective risk tend to be high. In addition, we examined incentives to enforce disaster prevention measures using Probit's analysis in this study. As a result, it was suggested that an effect of time discount rate changed by residence local degree of risk, and neighboring local environment strongly influenced because seismic retrofit rate of each location significantly influenced.
