Urbanization and social capital networks among regions for natural disaster resilience

Kiyomi Kawamoto () and Eric Y. Yamashita ()
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Kiyomi Kawamoto: Toyo University
Eric Y. Yamashita: University of Hawaii

Environment Systems and Decisions, 2024, vol. 44, issue 3, 514-526

Abstract: Abstract This study describes the network flow of social capital (SC) among regions for natural disaster resilience from the perspective of urbanization. Assistance between residents is a significant factor during natural disasters, and these ties are called SC. On the other hand, the relationship between residents in metropolitan areas is changing, and many urban residents do not interact closely with each other. This trend is accelerating with urbanization. Therefore, the networks beyond the community are essential during the disaster period. Two metropolitan areas, each with six districts, were chosen for this study. Honolulu County, Hawaii, in the U.S., is in the suburbanization stage, and Aichi prefecture, Japan, is in the reurbanization stage. SC data were collected by conducting a web-based survey, and the total number of valid samples was 1324. The quality of SC networks was analyzed compared with six types of SC, and the structure between districts was examined by the maximum flow. As a result, the SC network flow in high-population growth districts had the highest value; therefore, the high-population growth area can be the most SC exchangeable area. The mutual assistance networks, shaped by trust, empowerment, and cooperation, are strong even if urbanization progresses. On the other hand, personal relationship networks, such as safety confirmation, information exchange, and ethnically diverse acquaintances, become the weaker linkage in the transition from suburbanization to reurbanization. Finally, the use of SC networks for natural disaster resilience actions was discussed.

Keywords: Urbanization; Social capital; Natural disaster resilience; Network flow; Regions (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10669-023-09954-7

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