0000000000006618
AUTHOR
Salvador Del Saz-salazar
Estimating the non-market benefits of water quality improvement for a case study in Spain: A contingent valuation approach
Abstract This article addresses an important topic related to the application of the European Water Framework Directive (WFD) in Spanish watersheds. Results on a contingent valuation study, aimed to assess the non-market benefits of water quality improvements in the Guadiana river basin (GRB), are shown. Special attention has been paid to the issue of zero willingness-to-pay (WTP) responses, while addressing the possible presence of self-selection caused by protest responses. The results (i) indicate that sample selection bias is not a problem in our application, (ii) allow us to identify some key determinants of voting behaviour, and (iii) through the use of different econometric models al…
Environmental damage evaluation in a willingness-to-accept scenario: A latent-class approach based on familiarity
In this paper we report on the results of the application of a latent class model that was designed to identify and characterize unobserved preference heterogeneity in the context of a willingness-to-accept (WTA) framework involving negative environmental externalities stemming from the expansion of the Port of Valencia. We investigated the hypothesis that respondents with greater familiarity with the targeted good and any related environmental damage would demand more compensation; that is, they would have a significantly higher WTA. Based on respondents' familiarity with the Port of Valencia and their pre-existing knowledge about the negative consequences of its potential expansion three …
Waterfront Redevelopment in Post-America’s Cup Valencia: Some Insights from a Survey to Local Residents
AbstractWaterfront renewal is a recurrent event in the life of many cities around the world. Traditionally, planners and geographers have focused on this phenomenon analyzing the ongoing relationsh...
On the value of drovers’ routes as environmental assets: A contingent valuation approach
The aim of this study was to evaluate the non-market benefits resulting from the restoration of an old drovers’ route for recreation uses in Valencia (Spain). The valuation was carried out using the Contingent Valuation Method (CVM) through the elicitation of individuals’ willingness to pay (WTP). Since 52% of the respondents stated a zero WTP response, in order to inform decision-making processes more accurately, special attention was paid to the problem of zero and protest responses, and also to the possible presence of self-selection by those that protested. For the different specifications considered, results suggest that mean WTP estimates are higher for “rural areas” than for “the Val…
The social benefits of restoring water quality in the context of the Water Framework Directive: A comparison of willingness to pay and willingness to accept.
The Water Framework Directive (WFD) is by far the most important piece of water legislation in Europe for the coming decades. Its main aim is to achieve "good ecological status" for all water resources by 2015. The economic valuation of the non-market benefits derived from improving water quality is an important input in assisting the design and implementation of efficient and effective water management policies. In this study, the contingent valuation method has been applied with a double purpose. On the one hand, we have estimated the value of a hypothetical improvement in water quality of a river asking individuals about their willingness to pay, and on the other hand, the issue of exemp…
Valuing water supply infrastructure improvements using life satisfaction data as a complement to contingent valuation
A Double-Hurdle model of urban green areas valuation: Dealing with zero responses
Due to the widespread support for public parks and open spaces in urban areas, there is an increasing need to analyse the social benefits that are generated by such amenities. The city of Valencia (Spain) has a large park that can be considered its green backbone due to its transversal layout running along 9 of the 19 districts into which the city is divided. A contingent valuation survey was therefore conducted in order to obtain the non-market benefits derived from the use of this park by the inhabitants of Valencia. In addition, to deal with the large number of zero responses obtained, a Double-Hurdle model was applied. The results show that this model is more appropriate than other, sim…
The nonmarket benefits of redeveloping dockland areas for recreational purposes: the case of Castellón, Spain
As a consequence of the decline of central harbour sites and the relocation of port activities to the outskirts of cities, today waterfront redevelopment has become a key issue in the urban revitalisation policies of port cities. Although we are aware that city-port regeneration has strong links with the real estate market, our purpose here is very different. In particular, the contingent valuation method (CVM) has been applied in order to obtain the nonmarket benefits of the environmental and urban improvements derived from redeveloping some port-related areas for recreational and leisure purposes in the city of Castelloèn, Spain. To date, no previous study has attempted to apply this meth…
Meeting the environmental challenge of port growth: A critical appraisal of the contingent valuation method and an application to Valencia Port, Spain
In order to support effective policy-making, this research is aimed to emphasise the need of measuring the negative impact - or external costs - resulting from port growth. Considering the non-market nature of these external costs, a critical appraisal of the Contingent Valuation method is made paying special attention to the problem of hypothetical bias and the suitability of a willingness to accept (WTA) scenario for damage assessment. Finally, the results of a case study, conducted in Valencia (Spain), are presented with the intention of paving the way for future research in this specific context of port growth and negative externalities. In particular, results indicate that the average …
Public provision versus private provision of industrial land: a hedonic approach
Abstract This study examines the factors that explain the differences observed between the industrial land prices offered by the public sector and those offered by the private sector by means of estimating three hedonic pricing models. The results obtained show that location, defined as the distance to a highway, the distance to the city business district and the distance to the capital of the province, have an important impact on industrial land value. However, this impact is greater when private developers provide the land. Other variables considered, such as who is behind the provision of the industrial land, have an important impact on sale prices.
Urban Water Pricing and Private Interests’ Lobbying in Small Rural Communities
This research received funding from the LIFE programme of the European Commision [project LIFE16 ENV/ES/000196], the Regional Government of Andalusia and the European Regional Development Fund (projects P18-RT-576 and B-SEJ-018-UGR18) and the University of Granada (Plan Propio. Unidad Cientifica de Excelencia: Desigualdad, Derechos Humanos y Sostenibilidad -DEHUSO-).
Valuing public acceptance of alternative-fuel buses using a Latent Class Tobit model: A case study in Valencia
Abstract The introduction of hybrid electric technology for urban public transportation can be considered a valuable stepping stone to low-carbon mobility. Using the contingent valuation method, a sample of 427 respondents were asked about their willingness to pay for the air pollution reductions associated to a scenario of gradual introduction of hybrid electric buses in Valencia, Spain. Results show that 67% of the respondents are willing to pay extra for the adoption of this electric hybrid technology, being the mean willingness to pay € 0.33 per single bus fare. This would imply a 22% hypothetical increase in current bus fares and shows that public acceptance is critical for the success…
Rail freight transport and demand requirements : an analysis of attribute cut-offs through a stated preference experiment
This paper analyses the choice between road and rail in Spain where rail market share for freight is still residual. Discrete choice models are estimated with data obtained through a two-phase fieldwork, thus allowing us to carry out a stated preference efficient design for each interviewee. We analyse the existence of attribute cut-offs and the presence of a segment of the population with a zero value of frequency. Our results show that ignoring the existence of cut-offs and segments of the population with polarised valuations can lead to erroneous conclusions in terms of the possibilities of rail for absorbing significant quota.
Port expansion and negative externalities: a willingness to accept approach
Port expansion has been seen as the origin of negative externalities, affecting local residents’ well-being and contributing to the poor public image of ports. In this study, the contingent valuation method is used to estimate the costs borne by local residents as a consequence of the negative externalities derived from the growth of the Port of Valencia (Spain) in the last 30 years. As transport project appraisal has become more complex, this technique complements existing methodologies in this field, such as the social cost benefit analysis and the multicriteria analysis. Given the perceived property rights of families that have been living close to the port for a long time, a willingness…
Port–City Relationship and the Environment: Literature Survey and Methodological Approach for Project Appraisal in Presence of Environmental Externalities
AbstractIn times of increasing environmental awareness, the port–city relationship has gained new meaning because ports have been seen as the origin of both negative and positive externalities affecting public welfare. While the former are the result of port expansion, the latter are the result of transforming obsolete port areas into recreational facilities. Therefore, to support effective policymaking, this paper considers the following question: What is the scope of economic valuation of these externalities in the context of port-project appraisal? Considering their nonmarket nature, which makes economic valuation more difficult, a contingent valuation method is introduced as an economic…
Estimating willingness to pay for desalinated seawater: the case of Djerba Island, Tunisia
AbstractWater scarcity can be a growth-limiting factor. Non-conventional water resources, such as desalinated water, represent an alternative means of guaranteeing access to water while reducing water stress. In this study, a contingent valuation survey carried out in Djerba Island, Tunisia, allows the joint modelling of two decisions: societal support for the construction of a desalination plant and households’ willingness to pay for desalinated water. To the best of the authors’ knowledge, no study to date has addressed this relationship. We find that although a clear majority of households are in favour of using desalinated water, far fewer are willing to pay for it. The article conclude…
The Port and its Environment
In times of increasing environmental awareness, the port-city relationship has gained a new meaning since ports have been seen as the origin of both negative and positive externalities affecting the public wellbeing. While the former are the result of port expansion, the latter are the result of transforming obsolete port areas into recreational facilities. Therefore, in order to support effective policy-making, in this research is emphasized the need of measuring these environmental externalities. Considering their non-market nature, the contingent valuation method is introduced as an economic tool capable of overcoming this obstacle. Thus, the cases of two ports in Spain, namely Valencia …
Willingness to pay to improve urban water supply: the case of Sucre, Bolivia
In this study the contingent valuation method is applied in order to estimate the willingness to pay (WTP) of the inhabitants of Sucre (Bolivia) for an improvement in the urban water supply system. The study finds that about 55 per cent of households would be willing to pay an increase in their water bill for an improvement in the service. In order to deal with the problem of protest responses and the possible presence of a sample selection bias, a Heckman two-step model was estimated. More specifically, the econometric analysis undertaken reveals that there is no evidence of sample selection bias and that WTP positively relates to the respondents' household income, their level of education…