The Upper Paraná River floodplain is the last lotic stretch of an ecosystem seriously threatened given that circa 50% of the original ecosystem has been converted into reservoirs. To assess the recreational value of the Upper Paraná River floodplain, 174 tourists were interviewed using the Willingness to Pay--WTP and Travel Cost--TC methods. The annual aggregated WTP attributed by tourists was ...

Traditional economic valuation approaches assume that each individual has a single "true" value for a good or service in her mind that can be retrieved at will. Instead, we contend that an individual’s maximum willingness to pay (WTP) is best viewed as a random variable with an associated distribution. To measure individuals’ valuation distributions, we propose a new contingent valuation (CV) e...

BACKGROUND Iran has one of the highest rates of road traffic crash death rates throughout the world and road traffic injuries are the leading cause of years of life lost in the country. Using child car safety seats is not mandatory by law in Iran. The purpose of this research was to determine the parental willingness to pay (WTP) for child restraints in Mashad, the second most populated city in...

Many methadone maintenance clients are required to visit a clinic daily, so treatment attendance is essential for clients' compliance and treatment effectiveness. Using data derived from a unique survey, this study provides evidence of economic barriers to regular treatment attendance. Hypotheses tested are (1) higher personal costs reduce treatment attendance, and (2) willingness to pay (WTP) ...

Low willingness to pay (WTP) for environmental quality in developing countries is a key research question in environmental economics. One explanation is that missing credit markets may suppress WTP for environmental improvements that require large up-front investments. We test the impact of microloans on WTP for hygienic latrines via a randomized controlled trial in 30 villages in rural Cambodi...

BACKGROUND Percutaneous coronary intervention (PCI) remains limited by the risk of restenosis. Patients' perceptions of the health benefits and value of avoiding restenosis are incompletely known. METHODS AND RESULTS We used a contingent valuation approach to assess the willingness to pay (WTP) for a hypothetical treatment that eliminates the risk of restenosis among 270 PCI patients. Patient...

introductionmountainous region of tuchal, with a height about 3962 meters above sea level, is located in north of tehran,capital of iran. with regards to population growth, and increasing urbanization, and air pollution issues, it isknown as one of the most important recreational area for health recovery and relaxation among people living intehran. as these spaces are known as public goods with...

This study uses a contingent valuation model to evaluate visitors’ stated willingness to pay (WTP) for recreation at Colorado “Fourteeners”: peaks that rise higher than 14,000 feet. The study also assesses the respondents’ self-reported response uncertainty. One scenario queries respondents about a hypothetical situation in which they would pay an entrance fee where 80% of the funds are used on...

For a contingent valuation (CV) study of a bundle of water quality improvements, this paper tests whether the sum of the estimated willingness to pay (WTP) for each individual part of the package, evaluated incrementally, equals the estimated WTP for the entire bundle—as implied by standard utility theory. This is the first application of the adding-up test using incremental parts and Carson an...