The determinants of integrating policy-based and community-based adaptation into coastal hazard risk management: a resilience approach

A growing number of studies focus on improving the understanding of how the households’ adaptations can be encouraged in the process of coastal hazards and risk management. Particularly, this process is undergoing a major paradigm shift as it moves from an approach dominated by policy-based adaptation to another one in which community-based resilience building is favored. Thus, this article aims to apply a resilience approach to improve the knowledge about how public measures influence private autonomous adaptation behavior, through a transdisciplinary investigation of household adaptation behavior and its determinants. The Resilience Framework of Household Autonomous Adaptation to Climate- and Weather-Related Hazard Risks (ROHACHR) is proposed and combined with a focus group meeting and multivariate analysis to compare pre-disaster, during a disaster, post-disaster adaptations, and resilience behavior of households. Using an empirical survey of the households in three coastal municipalities in Taiwan, we examine the relationships between public measures and private adaptations that provides three distinguishing types of household behavior: ‘core’, ‘trust in governmental aid’, and ‘awareness and structures’. Results show that providing hazard risk information may be one step toward encouraging private autonomous adaptations. Several factors that help foster resilience also appear to be influential in households’ adaptation decisions, such as specific and positive governmental aid, information trust, and social capital. Based on these results, it shows that the ROHACHR is useful to characterize households’ adaptation and resilience behavior and explain how they respond to public measures. Finally, the policy implications of our findings for improving resilience of coastal communities and encouraging public-private collaboration in the process of hazard risk management are discussed.