Contingent Valuation Study Research Articles

A Contingent Valuation Study for Use in Valuing Public Goods with Health Externalities: The Case of Street Pianos.

Clinical healthcare is not the only way to improve an individual's health. Community-based interventions can have health and wellbeing impacts as well; however, the nature of these interventions, which have public good characteristics, poses challenges for the typical ways in which we value outcomes for use in (health) economic evaluations. The approaches to valuation of these type of interventions should allow for the incorporation of all types of values including option value, externalities and individual use-value. This is a feasibility study with the objective to re-consider the importance of health externalities when valuing public health interventions that are treated as public goods from an economic perspective. A contingent valuation (CV) survey was designed to elicit individual willingness to pay (WTP) for the public piano programme (PPP). Five different scenarios were designed; three scenarios focussed on individual use-value, while the other two (scenarios 4 and 5) covered option values and externalities. An online survey was conducted with a sample of 105 people. Preferences differed across the different scenarios. The mean WTP for scenario 1 was £0.81, for scenario 2 £3.65, for scenario 3 £3.07, for scenario 4 £7.26 and for scenario 5 £6.02. The WTP results for each scenario are presented and discussed regarding the nature of the good, user and non-user perspectives, payment vehicles and individual characteristics. This study provides evidence that all types of use are necessary for inclusion in an economic evaluation, especially when the good in question is a public good where its benefits can be obtained from all community members.

Assessing farmers’ willingness to pay for FMD vaccines and factors influencing payment: a contingent valuation study in central Oromia, Ethiopia

BackgroundFoot and mouth disease is a contagious, transboundary, and economically devastating viral disease of cloven-hoofed animals. The disease can cause many consequences, including decreased productivity, limited market access, and elimination of flocks or herds. This study aimed to assess farmers’ willingness to pay (WTP) for foot and mouth disease (FMD) vaccines and identify factors influencing their WTP. A cross-sectional questionnaire survey was conducted on 396 randomly selected livestock-owning farmers from three districts in the central Oromia region (Ambo, Dendi, and Holeta districts. The study utilized the contingent valuation method, specifically employing dichotomous choice bids with double bounds, to evaluate the willingness to pay (WTP) for the FMD vaccine. Mean WTP was assessed using interval regression, and influential factors were identified.ResultsThe study revealed that the farmer’s mean willingness to pay for a hypothetical foot and mouth disease vaccine was 37.5 Ethiopian Birr (ETB) [95% confidence interval [CI]: 34.5 40.58] in all data, while it was 23.84 (95% CI: 21.47–26.28) in the mixed farming system and 64.87 Ethiopian Birr (95% CI: 58.68 71.15) in the market-oriented farming system. We identified main livelihood, management system, sales income, breed, keeping animals for profit, and foot and mouth disease impact perception score as significant variables (p ≤ 0.05) determining the farmers’ WTP for the FMD vaccine.ConclusionFarmers demonstrated a high computed willingness to pay, which can be considered an advantage in the foot and mouth disease vaccination program in central Oromia. Therefore, it is necessary to ensure sufficient vaccine supply services to meet the high demand revealed.

Social acceptance of small modular reactor (SMR): Evidence from a contingent valuation study in South Korea

This study provides a comprehensive analysis of the social acceptance of the Small Modular Reactor (SMR) in South Korea. The growing interest in SMRs as a potential solution to the challenges of climate change and energy security highlights the need for continued research and development in this area. The research was conducted using a contingent valuation method, which involved surveying a representative sample of the South Korean population. Out of a total of 1032 respondents, 78 % were willing to pay for SMR development. The mean WTP was estimated to be USD 4.28 per year per household and scaled up to the national level in South Korea, it was analysed to have a total economic and social benefit of USD 0.49 billion. The more serious the respondents perceived the current and future problem of climate change to be, the more likely they were to be willing to pay an offered bid amount. This study suggests that the need to address climate change and the need to raise awareness of SMR as one of the low-carbon technologies at the government level is required to generate the appropriate level of social acceptance to promote SMR development.

Willingness to Pay for forest corridor conservation: A contingent valuation study of Similipal-Satkosia corridor affected by mining in Odisha, India

The forest corridor connecting the Similipal and Satkosia Tiger Reserve in Odisha, India is vital for several wide-ranging animals and the sustenance of a unique lineage of tigers in the landscape. However, this corridor is fragmented in its status quo with mining, road, and rail networks, along with heavy human dependency on the forest. Highlighting the non-use value of ecological goods like forest corridor can support the conservation of the ecosystem against developmental activities. We determine the local communities' willingness to pay (WTP) for the conservation and management of the Similipal-Satkosia corridor using the Contingent Valuation Method. A total of 340 households in 44 villages located within the peripheral development zone of mines were surveyed between January 2020 and March 2021. Double Bounded Dichotomous Choice (DBDC) technique was used to elicit maximum WTP, and spike modelling was employed due to the prevalence of zero WTP in the surveyed responses. The estimated mean willingness to pay for the conservation of the Similipal-Satkosia corridor was ₹ 28.2/household/month (USD 0.37) (without covariates) at a 1 % significant level. WTP was significantly associated with the respondents' higher education level and the household's further distance from the mine. Our study is expected to facilitate policymakers in developing effective forest management and conservation strategies while adhering to sustainable development goals.

Tourists' willingness to fund local investments in renewable energy: A contingent valuation study from the Galápagos Islands

Renewable energy technologies may have positive socioeconomic and environmental consequences at the local, regional, and global levels. However, transitioning to renewable energy sources requires substantial capital investments, which calls for alternative funding mechanisms, particularly in developing areas. In this study, we used the contingent valuation method to assess the economic feasibility of voluntary contributions from tourists to fund renewable energy projects in the Galápagos Islands, a renowned tourist destination. Of the 336 tourists who completed our survey, 42.3 % were willing to donate. Estimation results based on logit models indicate that the likelihood of giving is inversely related to the donation amount and positively related to the perceived consequentiality of our study and the tourists' familiarity with renewable energy. Conservative estimates indicate that the median tourist would make a one-time donation of US$ 85 to finance the transition to renewable energy. We conclude that voluntary donations from tourists can accelerate the transition to renewable energy and thus help the Galápagos Islands reach their goal of decarbonizing the islands by 2030.

Investigating the Value of Parallel Pipeline Projects for Water Supply: A Contingent Valuation Study in South Korea

Parallel pipeline projects can contribute to ensuring a safe and stable water supply and preventing or mitigating losses caused by water pipeline accidents. However, because these projects require a significant investment, feasibility tests are essential prior to their implementation. Considering the public nature of the water supply, the direct beneficiaries of the project and people from other regions can place value on such projects. Thus, this study estimates the value of parallel pipeline projects using the contingent valuation method (CVM) and the swing weighting technique. We constructed two contingent valuation surveys: one asking about the willingness to pay (WTP) for a parallel pipeline project within the respondent’s region and the other asking about the WTP for a project outside the region. The results show that the annual WTP per household for projects within and outside the region was 113,669 KRW (87.98 USD) and 5493 KRW (4.25 USD), respectively. These results indicate that the value perceived by people from outside the region should be considered. Additionally, the results from the swing weighting technique and WTP analysis show that the values that respondents generally consider important and those that can leverage the overall project value are distinct. This study’s results provide insights into the implementation of parallel pipeline projects in South Korea. Furthermore, this study’s analytical framework can be used for the valuation of other public infrastructure projects.

Estimating the costs and perceived benefits of oral pre-exposure prophylaxis (PrEP) delivery in ten counties of Kenya: a costing and a contingent valuation study.

Kenya included oral PrEP in the national guidelines as part of combination HIV prevention, and subsequently began providing PrEP to individuals who are at elevated risk of HIV infection in 2017. However, as scale-up continued, there was a recognized gap in knowledge on the cost of delivering oral PrEP. This gap limited the ability of the Government of Kenya to budget for its PrEP scale-up and to evaluate PrEP relative to other HIV prevention strategies. The following study calculated the actual costs of oral PrEP scale-up as it was being delivered in ten counties in Kenya. This costing also allowed for a comparison of various models of service delivery in different geographic regions from the perspective of service providers in Kenya. In addition, the analysis was also conducted to understand factors that indicate why some individuals place a greater value on PrEP than others, using a contingent valuation technique. Data collection was completed between November 2017 and September 2018. Costing data was collected from 44 Kenyan health facilities, consisting of 23 public facilities, 5 private facilities and 16 drop-in centers (DICEs) through a cross-sectional survey in ten counties. Financial and programmatic data were collected from financial and asset records and through interviewer administered questionnaires. The costs associated with PrEP provision were calculated using an ingredients-based costing approach which involved identification and costing of all the economic inputs (both direct and indirect) used in PrEP service delivery. In addition, a contingent valuation study was conducted at the same 44 facilities to understand factors that reveal why some individuals place a greater value on PrEP than others. Interviews were conducted with 2,258 individuals (1,940 current PrEP clients and 318 non-PrEP clients). A contingent valuation method using a "payment card approach" was used to determine the maximum willingness to pay (WTP) of respondents regarding obtaining access to oral PrEP services. The weighted cost of providing PrEP was $253 per person year, ranging from $217 at health centers to $283 at dispensaries. Drop-in centers (DICEs), which served about two-thirds of the client volume at surveyed facilities, had a unit cost of $276. The unit cost was highest for facilities targeting MSM ($355), while it was lowest for those targeting FSW ($248). The unit cost for facilities targeting AGYW was $323 per person year. The largest percentage of costs were attributable to personnel (58.5%), followed by the cost of drugs, which represented 25% of all costs. The median WTP for PrEP was $2 per month (mean was $4.07 per month). This covers only one-third of the monthly cost of the medication (approximately $6 per month) and less than 10% of the full cost of delivering PrEP ($21 per month). A sizable proportion of current clients (27%) were unwilling to pay anything for PrEP. Certain populations put a higher value on PrEP services, including: FSW and MSM, Muslims, individuals with higher education, persons between the ages of 20 and 35, and households with a higher income and expenditures. This is the most recent and comprehensive study on the cost of PrEP delivery in Kenya. These results will be used in determining resource requirements and for resource mobilization to facilitate sustainable PrEP scale-up in Kenya and beyond. This contingent valuation study does have important implications for Kenya's PrEP program. First, it indicates that some populations are more motivated to adopt oral PrEP, as indicated by their higher WTP for the service. MSM and FSW, for example, placed a higher value on PrEP than AGYW. Higher educated individuals, in turn, put a much higher value on PrEP than those with less education (which may also reflect the higher "ability to pay" among those with more education). This suggests that any attempt to increase demand or improve PrEP continuation should consider these differences in client populations. Cost recovery from existing PrEP clients would have potentially negative consequences for uptake and continuation.

Willingness to pay for an mRNA-based anti-cancer treatment: results from a contingent valuation study in Israel.

mRNA technology is currently being investigated for a range of oncology indications. We assessed the willingness to pay (WTP) of the general population in Israel for a hypothetical novel mRNA-based treatment for oncology indications. We used a contingent valuation methodology to elicit WTP using a web-based questionnaire. A sample of adult participants were presented with a hypothetical scenario in which an mRNA-based intervention increased the likelihood of a cure for various cancer types from 20% to 40% (half of the sample), or 60% (the other half of the sample). 531 respondents completed the questionnaire. The mean, median and mode WTP for the proposed hypothetical treatment in both scenarios were ILS65,000 (± ILS114,000), ILS20,000 and ILS50,000, respectively (1USD = 3.4ILS). The WTP was skewed towards zero, and 9.6% of the respondents were not willing to pay any amount. WTP higher amounts was significantly associated with higher income (p < 0.01), self-reported good health (p < 0.05), supplementary health insurance (p < 0.05), Jews compared to other populations (p < 0.01), interest in technology (p < 0.001) and a tendency to adopt medical innovations (p < 0.001). No statistical difference between the 40% vs. the 60% potential cure scenarios was found. Logistic and OLS regressions indicated that age, religion, income, and interest in adopting medical innovations were the best predictors of respondents' WTP. Despite the scientific breakthroughs in oncology treatment over the last few decades, many types of cancer are still incurable. Given the expected development of innovative mRNA-based treatments for cancer, these results should inform policymakers, the pharmaceutical industry and other stakeholders on the future coverage and reimbursement of these technologies incorporating patients' and societal views. To date, WTP considerations have not been given much weight in prioritization of drug reimbursement processes, neither in Israel nor in other countries. As a pioneer in adoption of the mRNA technology, Israel can also lead the incorporation of WTP considerations in this field.

Clinicians' interpretation of thresholds in hospital antibiograms for gram-negative rod infections: A survey and contingent valuation study of hospitalists.

Clinical guidelines suggest that hospital antibiograms are a key component when deciding empiric therapy, but little is known about how often clinicians use antibiograms and how they influence clinicians' empiric therapy decisions. We surveyed hospitalists at seven healthcare systems in the United States on their reported practices related to antibiograms and their hypothetical prescribing for four clinical scenarios associated with gram-negative rod pathogens. Each was given a randomly assigned antibiogram susceptibility percentage, and we used contingent valuation analysis to assess whether the antibiogram susceptibility percentage was associated with prescribing practices. Of the 193 survey responders, only 52 (26.9%) respondents reported using antibiograms more than monthly. Across all four clinical scenarios, there was no evidence that antibiogram susceptibility levels influenced antibiotic prescribing practices. With limited utilization and no evidence that they influenced practice, antibiograms may have a limited role in hospitalist care delivery for common gram-negative rod infections.

Hinterland Ecosystem Services Supply for Urban Residents: Application of Heckmans Two Stage Model for Contingent Valuation Study in Mekelle City

Hinterland Ecosystem Services Supply for Urban Residents: Application of Heckmans Two Stage Model for Contingent Valuation Study in Mekelle City

Measuring the impact of the embedding effect in contingent valuation studies of cultural public goods: the case of museums

ABSTRACT The embedding effect represents one of the most challenging problems of the contingent valuation (CV) method. The purpose of this study is to address the issue of embedding effect in the context of museums, by estimating the size and extent of the problem. A CV study conducted in Denmark asked respondents to evaluate both the Danish museum-system (inclusive good) and the specific local museum in their municipality of residence (embedded good). Typically, an equal or very close willingness-to-pay (WTP) for the two goods would indicate the presence of an embedding effect. However, we show that this will only be the case for some respondents, while for others the similarity between the two WTP reflects an exclusive interest for the local museum. We demonstrate the existence of these two different types of respondents by using a latent class model where respondents are clustered based on answers to the CV survey. Consequently, the aggregate WTP and the bias associated with the embedding effect are estimated. Our results have implications in terms of the reliability of CV studies and its implementation in actual policy issues, demonstrating that the right questions and techniques will facilitate the separation of ‘true’ answers from biased ones.

Public willingness to pay for mitigating local conflicts over the construction of renewable energy facilities: A contingent valuation study in South Korea

Despite the significant environmental benefits of transitioning to renewable energy sources, the development of renewable energy infrastructure may impose social and indirect environmental costs in siting areas. This creates a discordance between widespread public support for the energy transition and local community opposition to the construction of facilities near them. This study estimated the amount the public is willing to pay to prevent adverse impacts from such conflict using a contingent valuation methodology. The results indicate that the public's willingness to pay for mitigating local conflicts varies depending on their cause, with damage to the living environment considered most important. In addition, individuals who do not expect to directly face the negative externalities of electricity-related infrastructure during their lifetime are less willing to pay for its mitigation, while those who are know more about energy policy and are satisfied and credible with electricity services would likely pay more. Based on the findings, appropriate policy actions should be taken in a timely manner to facilitate societal agreement on the sharing of costs associated with the deployment of renewable energy infrastructure and to prevent additional costs from delaying the transition process.

Estimating the value of a statistical life in China: A contingent valuation study in six representative cities

The value of a statistical life (VSL) is a crucial tool for monetizing health impacts. To explore the VSL in China, this study examines people’s willingness to pay (WTP) to reduce death risk from air pollution in six representative cities in China based on face-to-face contingent valuation interviews (n = 3 936) from March 7, 2019 to September 30, 2019. The results reveal that the WTP varied from CNY 455 to 763 in 2019 (USD 66–111), corresponding to a VSL range of CNY 3.79–6.36 million (USD 549 395–921 940). The VSL in China in 2019 is estimated to be CNY 4.76 million (USD 689 659). The statistics indicate that monthly expenditure levels, environmental concerns, risk attitudes, and assumed market acceptance, which have seldom been discussed in previous studies, significantly impact WTP and VSL. These findings will serve as a reference for analyzing mortality risk reduction benefits in future research and for policymaking.

Saving the Vietnamese Mekong River Delta—People's attitudes, opinions and willingness to help

AbstractThe unique nature and environment of the Vietnamese Mekong Delta as well as its agricultural production and its traditional lifestyle are endangered by a rising sea level and increasing salinization of the ground and surface water. This paper aims at the assessment of Vietnamese people's information on and attitudes towards these problems as well as their respective convictions and beliefs. Imbedded in an online survey with 2000 completed interviews we also conducted a Contingent Valuation study with which we want to assess people's willingness to contribute personally and financially to saving the Mekong Delta as an indication of the benefits they would expect from such a project. We interviewed three different groups of respondents, one of which lives directly in the Mekong Delta, a second lives outside the Delta, but close to it, that is in Ho Chi Minh City, and the third group lives far away from the Delta in Hanoi. With these three subsamples of respondents we wanted to capture not only the use benefits but also the nonuse benefits accruing from such a project. In the course of the interviews, we found that the Mekong Delta is of great interest and importance to all interviewees, no matter in which part of Vietnam they live. They were mostly well informed on the problems there and had strong opinions on the causes of these problems as well as on suitable strategies to fight them. In our Contingent Valuation study, we assessed the willingness of people at the different study sites to contribute financially to a hypothetical project for the preservation of the Mekong Delta and the socio‐economic, attitudinal and psychological determinants of this willingness. Besides these empirical findings, we also obtained valuable insights regarding various methodological aspects of Contingent Valuation studies.

1243. Acceptable susceptibility thresholds reported in hospital antibiograms for Gram-negative rod infections: a survey and contingent valuation study of infectious diseases providers

Abstract Background Clinical guidelines recommend an antibiogram as a key component when making empiric therapy decisions. However, little is known about how clinicians utilize antibiograms. We aimed to assess the interpretation thresholds of hospital antibiograms among infectious diseases (ID) providers when making empiric therapy decisions for Gram-negative rods (GNRs) infections.Figure 1.Relationship between randomly generated percentages on antibiograms in each scenario and the distribution of participants willing to accept the threshold.Abbreviations: GNR-BSI, Gram-negative rod bloodstream infection; ICU, intensive care unit; UTI, urinary tract infection. Methods We conducted an email-based survey of ID providers practicing at Veterans Health Administration (VHA) facilities. We included four scenarios: i) a patient with urinary tract infection (UTI) in an outpatient setting, ii) a patient with UTI in an inpatient setting, iii) a patient with GNR bloodstream infection (GNR-BSI) in a non-intensive care unit (ICU) setting, and iv) a patient with GNR-BSI in an ICU setting. Each scenario randomly assigned antibiogram percentages and asked providers if they would feel comfortable selecting a hypothetical empiric therapy agent with the given value. Contingent valuation analyses were done by logistic regression models to evaluate the relationship between the percentages offered to providers and their willingness to use offered agents. Results In the preliminary analysis, 112 of 599 providers (18.7%) responded and 104 provided effective responses. Hospital antibiograms are generally used infrequently, and only 30.8% of providers indicated that they use antibiograms more than once a month. The estimated median interpretation thresholds, meaning half of the ID providers would prescribe the hypothetical antibiotic in each case with the values given on antibiograms, were significantly higher for patients with more severe illnesses (85.6% [95% confidence interval [CI] 83.1-88.1] for an inpatient with UTI vs 74.1% [95%CI 69.7-77.6] for an outpatient with UTI; 86.0% [95%CI 83.1-89.4] for a patient with GNR-BSI in ICU vs 77.9% [95%CI 74.2-81.2] for a patient with GNR-BSI in non-ICU) (Figure 1). Conclusion This study demonstrated that ID providers rarely utilized antibiograms and the median thresholds for hospital antibiograms influencing empiric antibiotic selection ranged from 74-86%, depending on the severity but not by the type of infection (UTI vs. BSI). Further analyses after we receive more responses will be completed. Disclosures Michihiko Goto, MD MSCI, Merck &amp; Co.: Grant/Research Support

Demand and willingness to pay for human papilloma virus vaccine for their daughters among mothers in Haryana, India: A contingent valuation study.

Cervical cancer accounts for 10 percent of cancer deaths among women in India. The human papillomavirus (HPV) vaccine can protect against infection but it is not included in India's universal immunisation programme. This study aimed to assess the demand and willingness to pay for the HPV vaccine among mothers of adolescent daughters. We conducted a contingent valuation exercise involving a hospital-based cross-sectional study to assess the demand for an HPV vaccine among mothers of adolescent daughters, their willingness to pay and its determinants. Participants were recruited at a tertiary care civil hospital in the city of Gurgaon in North India, and data was collected from December 2018 to February 2019. A questionnaire was administered to obtain demographic and awareness indicators. Payment cards were used to elicit the willingness to pay amount. Out of 319 respondents, 79% were willing to pay for the vaccine. The mean maximum willingness to pay was INR 629 (USD 35), which was less than the vaccine market price of INR 2000-3000 (USD 117-175) per dose. Participant age and number of children significantly influenced demand, while family income and awareness of cervical cancer influenced willingness to pay for the HPV vaccine. Participants were willing to spend between 3% and 34% of their monthly income on the vaccine. High demand and low willingness to pay for the HPV vaccine indicate low value perception of the health outcome among mothers of adolescent children in India. A strategy aimed at a price reduction of the vaccine and increasing its demand through improved awareness is important. At the same time, subsidising the vaccine in the short run is needed.

Willingness to pay for an annual vaccine in an endemic COVID-19 scenario: a contingent valuation study in Metro Manila, Philippines

Using the Contingent Valuation Method, this paper estimated willingness to pay (WTP) for annual COVID-19 booster vaccines for the endemic phase of the disease. The study found that, on the average, Metro Manila households would be WTP PhP2,199.71–2,410.50 (US$42.71–46.81) for a one-dose vaccine with 90% efficacy for one year. This WTP estimate is a measure of the perceived benefits from preventing COVID-19 infection, suggesting the potential for private markets to cater to those who prefer to obtain the annual booster COVID-19 vaccine privately, while a public vaccination program that subsidizes partially or fully the cost of the vaccine for those with lower capacity to pay is likely to pass a social cost–benefit assessment. Consistent with economic theory, WTP was found to significantly decrease with vaccine price and increase with income. Further, the study found general acceptance (measured in terms of the Health Benefit Model constructs) of COVID-19 vaccines among Metro Manila households despite the dengue vaccine controversy in the country immediately prior to the COVID-19 pandemic.

Estimating environmental and cultural/heritage damages of a tailings dam failure: The case of the Fundão dam in Brazil

We present the results of a contingent valuation study aimed at estimating the monetary value of environmental and cultural/heritage injuries caused by the Fundão (tailings) Dam failure in Brazil in 2015 as perceived by the Brazilian population. While the valuation literature on mining-related externalities is considerable, valuation studies of environmental and cultural/heritage injuries resulting from mining incidents are scarce and most available damage assessments apply market valuation methods, while rarely considering environmental and other nonmarket-valued impacts. The flooding and the release of tailings from the Fundão Dam failure led to injuries to sediments, watercourse opacity, and oxygenation, changes in riparian morphology, damages to cultural/heritage resources, mortality to fish and wildlife, changes in the food chain and more along the 675 km watercourse of the Doce River. This was arguably the greatest environmental and cultural/heritage injury ever caused by a single tailings dam collapse. The study followed state-of-the-art recommendations for the development, administration, and data analysis of stated-preference valuation methods. The survey of a representative sample of 5195 Brazilian urban households revealed that the average lower-bound willingness-to-pay estimate to avoid a similar incident in the near future was 137 USD and the parametric-based estimate was 230 USD per household, which aggregates to 7.96 or 12.91 billion USD, respectively. This corresponds to environmental damages of 176 or 295 USD per m3 of tailings released.

Assessing the trade-offs in more nature-friendly mosquito control in the Upper Rhine region

Recent studies show that the widely used mosquito control agent Bti has more negative effects on nature than previously expected. However, it is not yet clear whether people support a more nature-friendly mosquito control, as such an adaptation could potentially lead to higher nuisance. This study explores this question by assessing the willingness to pay for an adapted mosquito control strategy that reduces the use of Bti, while maintaining nuisance protection within settlements. For this purpose, a Contingent Valuation Study was conducted in the German Upper Rhine Valley. The results show that the majority of the surveyed population attaches a high value to a more nature-friendly mosquito control in terms of willingness to pay and is willing to accept a higher nuisance outside the villages. Policy makers should, thus, foster the development and implementation of such more nature-friendly mosquito control strategies to increase both environmental and societal benefits.

Regional-scale non-market benefits of improved lakes and rivers when perceived and monitored ecological status diverge

There is increased call to demonstrate the benefits of EU Member States’ river basin management plans, whose implementation has been delayed largely due to insufficient funding. This paper applies a contingent valuation study to investigate the benefit value of improved ecological status in river basins and the discrepancy between the quality of waters as perceived by river basin residents and as monitored under the Water Framework Directive. Respondents often reported worse quality for their focal water body than the monitored status indicated, a tendency established in a GIS analysis. The likelihood of such divergence increased most with degree of perceived deterioration of surface waters. Observed deterioration in waters, official status of one’s focal water body and divergence between two quality measures had implications for welfare estimates. Describing water quality according to ecological criteria and as uniformly as possible would facilitate the use of valuation results in future benefit transfers.