1,721,089 research outputs found
Combining Actual and Contingent Behavior to Estimate the Value of Sports Fishing in the Lagoon of Venice
No full textWhen conducting a travel cost method (TCM) study, researchers often collect observations on actual trips to the natural resource of interest and on intended trips under specified but hypothetical circumstances—usually, changes in prices and/or site quality. Actual and hypothetical trips are combined to estimate single-site TCM demand function for trips.
We estimate severalmodels to test whether it is acceptable to pool hypothetical and actual trip data, focusing on respondent heterogeneity in the contingent behavior questions. We apply
thesemodels to aTCMstudy about therecreationaluse of the LagoonofVenice for sports fishing.
The Lagoon of Venice is a complex natural resource and ecological system that in recent decades has experienced overfishing, water pollution, sediment deposition and the
consequences of the introduction of an exotic species of clam. Local policies are being considered that would eventually result, among other things, in restoring fish stocks, thus benefiting recreational anglers. In addition, the European Union's Water Framework Directive includes recreational benefits among the benefits of reaching “good” ecological and chemical status in rivers, lakes, and coastal waters.
In April–July 2002, we conducted a mail survey of anglers with valid licenses fishing on the Lagoon of Venice to gather data on their fishing trips, behaviors and expenditures over the previous year. We also asked questions about trips that would be undertaken under hypothetical changes in the price of a trip and/or in the catch rate. Our models suggest actual and contingent behaviors are driven by the same demand function, and can be pooled for estimation purposes. We use this estimated demand function, and its shift when the catch rate is improved, to compute angler surplus at the current catch rate and the change in
surplus accruing from a 50% improvement in the catch rate. For the average angler in our sample, the former is about €1700/year, while the latter is about €2800
The Vsl For Children And Adults: Evidence From Conjoint Choice Experiments In Milan, Italy
No full textBonifica, Recupero e Valorizzazione delle Aree Industriali Dismesse e Contaminate: Percezioni e Preferenze dei Cittadini
No full textStakeholder preferences for contaminated land clean-up and redevelopment programmes in Italy
No full text
Willingness to Pay for Contaminated Site Cleanup Policies: Evidence from a Conjoint Choice Study in Italy
No full textWe use conjoint choice experiments to study the preferences of people living in areas with contaminated sites in Italy for public programs that would address the human health risks associated with these sites. The attributes of the alternative (and hypothetical) programs shown to our survey respondents are the size of the mortality risk reductions, the size of the population affected by the program, the timing of the risk reduction, the number of years the risk reduction would be experienced for, and the cost to the respondent’s household. The responses to the choice questions satisfy scope requirements and show that people care—and are willing to pay more for—for risk reductions sustained over a long time. This in turn implies a preference for permanent remediation.
People discount future risk reductions at a rate of about 6.25%
Public Policies for Contaminated Site Cleanup: Evidence from a Survey of the Italian Public
No full textCleaning up contaminated sites is currently considered one of the most important environmental policy priorities in many countries. Remediation of contaminated sites is attractive because it reduces risks to human health and ecological systems, and brings a host of potential social and economic benefits.
Public programmes are deemed necessary by the law and in practice to address contamination at orphan site and to speed up the general processes of cleanups in most countries. People’s opinion regarding these programmes in general and the priorities to be addressed is useful and pertinent given the large amount of resources to be devoted to the goal of remediation. In this work, we present the result of a national survey of the Italian public
Puberta' precoce e gozzo multinodulare in un bambino affetto da sindrome di Mc-Cune-Albright : follw-up di dieci anni.
No full textCancer values of prevented fatalities (VPFs), one size does not fit all: The benefits of contaminated site cleanups in Italy
No full textThe authors conducted a survey based on conjoint choice experiments in Milan, Italy, about mortality risk reductions delivered by hypothetical private behaviors and public programs, and used it to estimate the value of a prevented fatality (VPF) when the cause of death is cancer. Their estimate of the VPF is (sic)4.2 million. The VPF is about (sic)1 million larger when the risk reduction is delivered by a public program, but further analyses reveal that it is so only when the respondent believes that public programs are effective at reducing this particular type of mortality risk. This estimate of the VPF is higher than generic European Union-wide figures recommended by the European Commission Directorate-General for Environment (DG Environment) for environmental policy analyses, and is comparable to other VPFs that are appropriate for Italy, hazardous waste regulations, and enforcement-based cleanup programs. The authors use their VPF to compute the benefits of addressing leaking landfills, illegal disposal of hazardous wastes, and poor hazardous waste management practices in the provinces of Naples and Caserta in southern Italy. The authors also examine the importance of the discount rates, since the mortality benefits of remediation begin in 20 yr and are assumed to continue over 30 yr.
Implications: Cost-benefit analysis that includes monetized nonmarket goods and services such as adverse health and premature mortality effects has become a standard tool in project appraisal and policy decision-making. The authors' estimates of the mortality benefits of cleaning up hazardous waste sites in a region of southern Italy are much larger than previous calculations that relied on the guidelines by DG Environment, raising concerns that using one VPF for all member countries of the European Union, and/ or VPF figures estimated in a private risk reduction setting, might considerably underestimate the benefits of cleanup policies
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