Valuation of a Heatwave Early Warning System for Mitigating Risks Associated with Heat-Related Illness in Central Vietnam

Nguyen Duc Kien, Nguyen H. D. My (), Dang Thi Anh Thu, Ton That Canh Tri, Nghiem Hong Son, Thai Khanh Phong, Hoang Cong Tin, Nguyen Hoang Lan, Tran Binh Thang, Bui Dung The and Phung Tri Dung
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Nguyen Duc Kien: Faculty of Economics and Development Studies, University of Economics, Hue University, Hue 530000, Vietnam
Nguyen H. D. My: Faculty of Economics and Development Studies, University of Economics, Hue University, Hue 530000, Vietnam
Dang Thi Anh Thu: Faculty of Public Health, University of Medicine and Pharmacy, Hue University, Hue 530000, Vietnam
Ton That Canh Tri: Faculty of Public Health, University of Medicine and Pharmacy, Hue University, Hue 530000, Vietnam
Nghiem Hong Son: ANU College of Health and Medicine, The Australian National University, Canberra, ACT 2600, Australia
Thai Khanh Phong: Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, Woolloongabba, QLD 4102, Australia
Hoang Cong Tin: Faculty of Environment, University of Sciences, Hue University, Hue 530000, Vietnam
Nguyen Hoang Lan: Faculty of Public Health, University of Medicine and Pharmacy, Hue University, Hue 530000, Vietnam
Tran Binh Thang: Faculty of Public Health, University of Medicine and Pharmacy, Hue University, Hue 530000, Vietnam
Bui Dung The: Faculty of Economics and Development Studies, University of Economics, Hue University, Hue 530000, Vietnam
Phung Tri Dung: School of Public Health, Faculty of Medicine, The University of Queensland, Herston, QLD 4006, Australia

Sustainability, 2023, vol. 15, issue 21, 1-21

Abstract: Heatwaves are increasingly recognized as a severe natural hazard that pose substantial threats to human wellbeing and sustainability with physical, mental, and economic impacts. Heatwave Early Warning Systems (HEWSs) have emerged as a promising solution to mitigate these adverse impacts. This study aims to valuate a Short Message Service (SMS)-based early warning system specifically targeting heat-vulnerable populations and their determinants in central Vietnam, an area prone to heat-related illnesses. By employing the contingent valuation method, individuals’ willingness to pay (WTP) for the warning system and the determinants of the WTP were assessed. The findings showed an average WTP of VND 283,110 (~USD 11) per person per year, according to the parametric estimate. The total WTP for the affected population in central Vietnam reached VND 857,283,678,000 or USD 37,273,203 per year, assuming that 50% of the heat-vulnerable population contributes to HEWSs financially. Significant determinants of WTP were identified, including bid levels, cost of heat-related illnesses, background diseases, and exposure to heat. Policymakers and health authorities can utilize these findings to develop effective adaptation strategies for preventing and mitigating heat-related illnesses, while also promoting sustainable development in central Vietnam.

Keywords: heatwave early warning systems; contingent valuation method; willingness to pay; vulnerable populations; central Vietnam (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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