Improving Drinking Water Quality in South Korea: A Choice Experiment with Hypothetical Bias Treatments

Gschwandtner, Adelina; Jang, Cheul; McManus, Richard

doi:10.3390/w12092569

Cited by 10 publications

(7 citation statements)

References 35 publications

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“…In fact, the national average public water supply use approached 99.3% as of 2019 [9,10], even though households in low-level governments had limited access to the public water supply (Table 2). Consistent with the survey results, an increased number of water quality-related civil complaints, such as high turbidity, bad odor, and bad taste, has been filed [43][44][45]. Therefore, to meet the public water quality requirements, the investments in advanced water treatment as well as in pipeline management, such as flushing and rehabilitation of corroded pipes, must be increased [44,46].…”

Section: Willingness-to-pay At the Individual Levelmentioning

confidence: 89%

Willingness to Pay for Improved Water Supply Services Based on Asset Management: A Contingent Valuation Study in South Korea

Kim

Shin

Hyung

et al. 2021

Water

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The pressure on water infrastructure has increased due to an increase in the number of aging water pipes. Aging pipes are prone to failure, causing significant financial losses and service disruptions. The increasing number of aged pipes and limited budget for pipe rehabilitation or replacement necessitates water infrastructure asset management to ensure sustainable water supply services. In this study, contingent valuation was used to estimate the willingness to pay (WTP) and value improved water supply services through the implementation of asset management. To estimate the WTP at the individual and county levels, we performed a nationwide survey including eight provinces and 24 counties/cities with distinct water supply service performances. At the individual level, the median WTP estimated using the double-bounded dichotomous choice model was 249.50 KRW/month (0.22 USD/month). The results showed that high-level satisfaction of customers with water supply services and positive price perception of water bills resulted in a high WTP. At the county level, decreasing water supply service performances were associated with a low WTP, indicating that proper interventions by local utilities are required to achieve sustainable water supply services. Our results provide a quantitative basis for decision-making in implementation of water infrastructure asset management.

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Section: Willingness-to-pay At the Individual Levelmentioning

confidence: 89%

Willingness to Pay for Improved Water Supply Services Based on Asset Management: A Contingent Valuation Study in South Korea

Kim

Shin

Hyung

et al. 2021

Water

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“…They found that the higher WTP for water service improvements is explained by education, age, and income. Gschwandtner et al (2020) employed CE in Cheongju in South Korea to examine the feasibility of the advanced water treatment system. They found that the lower bound of median WTP was about 2 USD/month for the new water treatment system, which is about the same as what participants spend to purchase bottled water for the household.…”

Section: Choice Experiments Methodsmentioning

confidence: 99%

Public preferences for the improvement of existing piped water provision: a choice experiment in Sri Lanka

2023

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In many developing countries, lack of access to water and its unsustainable use and adverse health impacts are important policy issues. The challenge of improving water services in developing countries is not only limited to the provision of new connections for non-piped-source-dependent households but also to improving the service level for the already connected households to meet peoples' needs. We conducted an empirical study in Sri Lanka on 307 households with piped water supply. A choice experiment was used to assess the potential welfare gains from alternative water supply schemes in terms of water quality, reliability, and pressure, and how the schemes are managed. Currently, over 20 different water supply systems managed by either governmental organizations or community-based organizations (CBOs) provide piped water supply. We found that households are willing to pay a substantial amount for improved water service, particularly for water quality improvements. Using the latent class and random parameter logit models, we found evidence of heterogeneity in the preferences for water service improvements. We suggest that the heterogeneous preferences of the household groups should be considered in the cost–benefit analysis to pave a way for rational policy-making on water service improvements.

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“…Traditionally, economists have addressed the valuation of water resources using stated preference methods, among which the Contingent Valuation Method (CVM) stands out (see, for example, [41][42][43]). CVM is a survey-based approach used to place a monetary value on public and environmental goods that are not commonly bought and sold in the marketplace [44].…”

Section: Contingent Valuation Protest Responses and Censoringmentioning

confidence: 99%

Urban Water Pricing and Private Interests’ Lobbying in Small Rural Communities

Alguacil-Duarte

González‐Gómez

Salazar

2020

Water

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It is difficult for small municipalities to ensure their urban water cycle complies with the principle of cost recovery established in the European Union (EU) Water Framework Directive. Unlike more populous municipalities, small municipalities face higher average production costs. However, at least in Spain, the price of water is, on average, lower in small municipalities. We question whether the low price of water in rural areas is due, at least in part, to people linked to agriculture, i.e., do farmers constitute a special interest group that hinders increases in the price of water? The main hypothesis was tested with data taken from Torre-Cardela, a municipality in southern Spain with close to 800 inhabitants. In the research a contingent valuation analysis was carried out to analyze respondents’ willingness to pay in the event of a hypothetical increase in the price of water to help cover the service costs. Contrary to expectations, the study yields no evidence that the agricultural population is more resistant to price rises than the rest of the citizens surveyed. In fact, results show that people involved in the agricultural sector would be willing to accept a hypothetical increase in water tariffs in between 15% and 25% over the current tariff, while for the rest of the population this same increase would be lower (in between 9% and 20%).

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Improving Drinking Water Quality in South Korea: A Choice Experiment with Hypothetical Bias Treatments

Cited by 10 publications

References 35 publications

Willingness to Pay for Improved Water Supply Services Based on Asset Management: A Contingent Valuation Study in South Korea

Willingness to Pay for Improved Water Supply Services Based on Asset Management: A Contingent Valuation Study in South Korea

Public preferences for the improvement of existing piped water provision: a choice experiment in Sri Lanka

Urban Water Pricing and Private Interests’ Lobbying in Small Rural Communities

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