Households’ Willingness to Pay for Disaster Resilient Safe Drinking Water Sources in Southwestern Coastal Bangladesh

作     者：Md.Sariful Islam Sonia Afrin Md.Nasif Ahsan Mohammed Ziaul Haider Tasnim Murad Mamun Debasish Kumar Das 

作者机构：Economics DisciplineKhulna UniversityKhulna 9208Bangladesh 

出 版 物：《International Journal of Disaster Risk Science》 (国际灾害风险科学学报（英文版）)

年 卷 期：2019年第10卷第4期

页      面：544-556页

核心收录：

学科分类：08[工学] 0815[工学-水利工程] 

主　　题：Bangladesh Disaster resilient safe drinking water Double bounded contingent valuation Household willingness to pay 

摘      要：Nonfunctionality of engineered water sources after two catastrophic cyclones—Sidr in November 2007 and Aila in May 2009—created acute scarcity of safe drinking water in coastal *** objective of this study was to estimate households’willingness to pay(WTP)for disaster resilient water sources in Dacope upazila of Khulna District in southwestern coastal *** applying the double bounded dichotomous contingent valuation method to a dataset of 250 randomly selected households,we found that the mean WTP is BDT 263 and that inaccessibility to functional safe drinking water sources is the most significant determining factor of households’*** mean WTP for a disaster resilient water source project in the study area,we measured a present value of aggregate WTP over project’s life span worth about BDT 624(USD 7.37)million,which is about14.30 times the present value of project’s aggregate establishment and maintenance ***,charging the local inhabitants a water tariff at mean WTP would lead to the exclusion of around 50%of the people from getting access to the improved water services or create a free riding *** simulation exercises this study determined that the socially optimal water tariff is BDT 50 per *** tariff would not only generate revenue of more than five times the project cost but would also create access to disaster resilient improved drinking water sources for almost 99%of the people.