Abstract Flooding poses a significant threat to the sustainable development of Ho Chi Minh City (HCMC), Vietnam’s largest metropolitan area. Annual flood events generate substantial socio-economic impacts across the urban population. Whilst extensive research has examined flooding patterns within HCMC, limited scholarly attention has focused on flood response behaviours and variations across socio-economic strata. This investigation analyses common flood response behaviours among residents in flood-affected areas and examines behavioural differences between social groups according to socio-economic characteristics. Employing an integrated theoretical framework combining risk management theory with Protection Motivation Theory (PMT), this study developed a comprehensive model of flood response behaviours across demographic categories. Data collection involved surveying 250 households across areas experiencing varying flood intensities throughout HCMC. The empirical analysis reveals that flood risk perception and self-efficacy significantly influence decisions to implement adaptive response behaviours. These findings contribute to understanding response behaviour mechanisms within flood-vulnerable urban contexts and inform the development of equitable adaptation policies tailored to diverse demographic communities.
Ha et al. (Mon,) studied this question.