identifying the warm glow effect in contingent valuation abstract this paper reports the results from a contingent valuation study designed to investigate the influence of warm glow in willingness to pay wtp responses interindividual differences in warm glow motivation are measured through a factor analysis performed on a list of attitudinal items the reported wtp measures fail to pass the scope test both socioeconomic variables and motivational factor scores are significant in the explanation of the individual wtp measures we compute cold wtp measures by taking out the effect of the warm glow motivation these cold measures satisfy both the scope test and hausman s adding up property

protest responses and willingness to pay attitude toward paying for stormwater pollution abatement abstract in contingent valuation cv surveys there is often a proportion of individuals who are not willing to pay to obtain avoid an increase decrease in some attribute of a particular environmental public good some of these respondents might protest an aspect of the cv survey e g payment vehicle or the behavioral intention i e willingness to pay wtp constituting the measure of economic value respondents attitudes toward the behavior of paying for a particular public good may contribute to the decision to pay independent of other explanatory variables such as the price of the intervention household income and methodological characteristics of the cv survey moreover attitude toward paying for the good may manifest in protest responses as a reaction to higher prices and methodological factors e g the payment vehicle to the extent that protest beliefs are dependent on such matters of survey design they may be alleviated through changes in cv methodology however to the extent that protest beliefs are a reaction to the act of paying methodological remedies may not be effective cv surveys of stormwater pollution abatement were conducted in four australian state capital cities the surveys differed with respect to the type of pollution abatement intervention the payment regime the vector of prices used in the dichotomous choice question and the institution responsible for implementing the stormwater pollution intervention protest beliefs were measured for all respondents irrespective of their responses to the wtp question results indicated that attitude toward paying underpinned protest beliefs regarding the role of government in stormwater management and individual rights to unpolluted waterways this attitude was present in each city sample despite methodological differences between the cv surveys attitude toward paying explained variability in wtp and was a larger predictor than was price household income was significantly associated with attitude toward paying and this relationship was also invariant over city samples protest beliefs were not independent of either the wtp question or demographic factors such as household income rather these beliefs were related to wtp through attitudes toward the act of paying for stormwater pollution abatement censoring protest responses in the present study would bias cv samples toward those individuals who are favorably disposed toward paying for environmental public goods and those from higher income households

application of portfolio theory to asset based biosecurity decision analysis abstract a key challenge for biosecurity decision making is how best to allocate scarce resources across multiple environmental assets the allocation of funds for the best return from investment requires a careful assessment of expected return and uncertainty in this paper we applied a portfolio theory based decision support tool that helps determine resource allocation in a way that maximizes expected return and minimizes uncertainty our framework offers three advancements to the literature first it helps in making resource allocation decisions across multiple pests that affect multiple environmental assets second it incorporates multiple sources of uncertainty in the decision analysis including economic value uncertainty finally it demonstrates a generic approach to design a choice experiment study to estimate monetary values of a broad group of environmental assets we find that a portfolio based framework applied in conjunction with a choice experiment study can be a useful tool to guide biosecurity resource allocation decisions our results show that disregarding value uncertainty may cause bias by underestimating true uncertainty in the opportunity set the choice experiment study revealed substantial positive non market values generated by environmental biosecurity in australia however significant preference heterogeneity across respondents with regards to different biosecurity outcomes was observed

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 successful introduction of these new low emissions vehicles further this paper differs from previous research in that it addresses the issue of heterogeneity among respondents thus using latent class analysis based on questions about environmental concerns we identify three different classes of respondents high medium and low environmentally concerned mean willingness to pay for each class ranges from 0 25 to 0 38 then we analyze willingness to pay determinants through the estimation of a tobit model for each class of respondents this reaffirms the existence of heterogeneity and accordingly suggests that treating the population as a single homogeneous group of respondents as is common in the existing literature may lead to biased parameter estimates and flawed decision making regarding climate change action

the worth of a possum valuing species with the contingent valuation method the focus of this paper is on methods of assessing the value peopleplace on the conservation of species for use in policy making of principalinterest is the relatively new methodology of contingent valuation whichis a method for asking people directly about their preferences the paperpresents an application of the contingent valuation method to theconservation of an endangered species in the state of victoria australia the results emphasise the importance of careful survey design implementation and analysis as well as the precise definition of theenvironmental good being valued consequently the contingent valuationmethod does provide information relevant to decision making processesbased on monetary economic considerations thus in orthodox economicterms it makes sense to conserve species but there are other moral andethical grounds for conserving species as well

the impact of the bird flu on public willingness to pay for the protection of migratory birds abstract in this paper we present the results of a unique time series analysis of contingent values and models for migratory bird protection based on an identical contingent valuation cv survey carried out over a three year time period since the first bird flu outbreak in 2003 although there exists no scientific evidence for a direct relationship migratory birds are believed to play an important role in spreading the bird flu virus worldwide the time series analysis allows us to test the temporal stability of stated preferences for migratory bird protection and at the same time examine indirectly the possible impact of increased media attention and public awareness levels regarding the bird flu we test the impact of the bird flu on public willingness to pay wtp for migratory bird protection in the final 2005 survey whilst accounting for procedural variance introduced by sequencing and question ordering effects but we are unable to demonstrate a direct negative relationship a novelty of the study presented here is that respondents in the cv surveys are given the opportunity to pay an annual money amount or a one time off lump sum annual wtp values appear to be significantly higher than one time off wtp values suggesting a negative implicit discount rate self selection bias is an important reason for the observed differences we find that respondents who agree to pay annually differ significantly from respondents who wish to pay a lump sum in terms of their underlying preferences and motivations towards migratory bird protection

are small firms willing to pay for improved power supply evidence from a contingent valuation study in india abstract this paper provides new estimates on indian small scale manufacturing firms willingness to pay wtp for reliable power supply almost half of indian manufacturing lies in the small scale sector and its productivity is severely affected by power outages however there is a surprising paucity of research on small firms wtp for avoiding outages we conduct a double bounded dichotomous choice contingent valuation experiment with a random sample of 260 small scale firms in the region around hyderabad we find that on average firms are willing to pay approximately 20 more for uninterrupted power supply the wtp estimates and the explanatory factors for the firms decisions were tested for robustness using both probit and bivariate probit models in addition a two step heckman correction was used to control for selection bias induced by protest responses our results are vital to understand behavior of small firms which are crucial to india s economic growth further the government s continued emphasis on power sector reforms makes the paper even more important as it provides realistic estimates for designing tariffs while keeping in mind the preferences of the small scale industry

the effect of protest votes on the estimates of wtp for use values of recreational sites contingent valuation studies are often characterized by a considerable number of protest responses which may cause selectivity bias on the final estimates for wtp sample selection models can detect and if necessary correct selectivity bias in economic applications where the relevant dependent variable is continuous sample selection models are generally estimated using heckman s 2 step method rather than the fiml estimator either method has its own drawback computational complexity for the fiml method susceptibility to collinearity problems for the 2 step method using data on valuation of forest resources for recreational use we analyse the performance of the two estimators in this application given the presence of some collinearity the fiml is preferred to the 2 step method a procedure is outlined to deal with selectivity problems in similar settings

the pot rush is legalized marijuana a positive local amenity this paper examines the amenity value of legalized marijuana by analyzing the impact of marijuana legalization on migration to colorado colorado is the pioneering state in this area having legalized medical marijuana in 2000 and recreational marijuana in 2012 we test whether potential migrants to colorado view legalized marijuana as a positive or negative local amenity we use the synthetic control methodology to examine in and out migration to from colorado versus migration to from counterfactual versions of colorado that have not legalized marijuana we find strong evidence that potential migrants view legalized marijuana as a positive amenity with in migration significantly higher in colorado compared with synthetic colorado after the writing of the ogden memo in 2009 that effectively allowed state laws already in place to be activated and additionally after marijuana was legalized in 2013 for recreational use when we employ permutation methods to assess the statistical likelihood of our results given our sample we find that colorado is a clear and significant outlier we find no evidence for changes in out migration from colorado suggesting that marijuana legalization did not change the equilibrium for individuals already living in the state jel i18 r23 k42 c22

green for green the perceived value of a quantitative change in the urban tree estate of new zealand abstract the urban tree estate impacts on the quality of urban life through the provision of a series of benefits that are ecological aesthetic social and economic in nature most of these benefits do not have a market price and exact information on the type of values people attach to urban trees is scarce the optimal allocation of resources towards the management of this natural asset is therefore problematic this study measures by contingent valuation the perceived monetary value of avoiding a 20 decrease in the urban tree estate of 15 cities in aotearoa new zealand the results reveal that on average households would be willing to pay around 2003 nzd 184 annually for the avoidance of a 20 reduction in their local urban tree estate with the commitment covering a period of 3 years half of the households would be willing to pay less than nzd 105 while the other half would be willing to pay more whether residents were willing to pay was influenced by the magnitude of the requested contribution bid the perceived seriousness of the 20 loss qualification and the strongest motivation for taking care of trees when using volunteer work as a metric for the valuation 66 of the sample agreed to contribute 4 h of volunteer work and 55 of those who refused to pay the contingent bid said yes to contributing in this form half the sample was dissatisfied with the number of trees in their cities the great majority wanting more trees the respondents indicated different importance levels for a series of benefits and negative effects associated with city trees aesthetics fresh air and trees representing nature in the city and bringing wildlife into the urban environment were the most highly regarded benefits while trees causing drainage problems generated the most concern the diverse motives given for interest in city trees highlighted the difficulties associated with measuring the total economic value of changes in this urban natural capital due to the non use bequest and existence value components

choosing between internet and mail survey modes for choice experiment surveys considering non market goods in a choice experiment setup considering a non market good this paper adds to the literature on survey mode effects by providing evidence that internet surveys can be a viable alternative to traditional mail surveys when gathering feedback from a sample of respondents the case study concerns preferences for protecting different types of landscape from road encroachment when building new motorways in denmark two samples of respondents are surveyed one by internet and one by mail the performances of the two samples are compared over six different criteria response rates protest responses demographics preferences and wtp estimation precision and finally certainty in choice differences are observed for some of these criteria implying that analysts should be aware that choosing internet over mail could be accompanied by a survey mode effect however the observed differences do not translate into significant differences in the unconditional wtp estimates in most applied economic valuation studies of non market goods the main objective is in fact estimation of wtp hence in the present case the identified survey mode effects do not severely invalidate the applicability and continued use of the internet as a suitable means of collecting data for choice experiment economic valuation of non market goods

differential taxation and occupational choice we develop a framework to study optimal sector specific taxation where each agent chooses an occupation by comparing her skill differential with the tax burden differential across sectors because skills are not perfectly transferable the diamond mirrlees theorem according to which the second best entails production efficiency fails social welfare can be increased by inducing some agents to join the sector in which their productivity is not the highest at the optimum income taxes balance the marginal losses from inter sector migration with the marginal gains from tailoring tax schedules to the distribution of productivities in each sector tagging a calibrated model indicates that sector specific taxation generates substantive welfare gains when skill transferability decreases with income as it enables the government to increase average taxes on high earners with large wage premia

contingent valuation controversies and evidence contingent valuation cv has become one of the most widely used non market valuation techniques cv s prominence is due to its flexibility and ability to estimate total value including passive use value its use and the inclusion of passive use value in benefit cost analyses and environ mental litigation are the subject of a contentious debate this paper discusses key areas of the debate over cv and the validity of passive use value we conclude that many of the alleged problems with cv can be resolved by careful study design and implementation we further conclude that claims that empirical cv findings are theoretically inconsistent are not generally supported by the literature the debate over cv however has clarified several key issues related to nonmarket valuation and can provide useful guidance both to cv practitioners and the users of cv results

protest response and willingness to pay for culturally significant urban trees implications for contingent valuation method the contingent valuation method cvm could assist green space planning management and appreciation by assigning a monetary value to urban trees however the use of cvm is limited by its inherent methodological weaknesses a critical concern is the existence of a large proportion of survey respondents providing zero willingness to pay wtp and that these responses are not amenable to economic theory known as protest responses censoring protest responses from further treatment is a common practice which warrants reconsideration in light of our cvm survey results the survey involved 800 residents requested to state their wtp for preserving the culturally significant stonewall trees in urban hong kong about 28 of respondents returned a zero wtp for all respondents the strength of protest beliefs was assessed and the relationship between protest beliefs and wtp were examined our analysis produced contradictory results some protest items varied negatively with wtp as expected but other items increased with it respondents stated positive wtp harbored latent protest beliefs which are related to non economic preference the findings stand at odds with the assumptions underlying the censoring treatment and raise questions about the validity of wtp estimates these methodological implications should be taken into account in using cvm

attending to the reasons for attribute non attendance in choice experiments this paper focuses on behavioural reasons underlying stated attribute non attendance in choice experiments in order to identify and incorporate procedures for dealing with heterogeneous attribute processing strategies we ask respondents follow up questions regarding their reasons for ignoring attributes based on these statements we conclude that the standard way of assigning a zero impact of ignored attributes on the likelihood is inappropriate we find that some respondents act in accordance with the passive bounded rationality assumption since they ignore an attribute simply because it does not affect their utility excluding these genuine zero preferences as the standard approach essentially does might bias results other respondents claim to have ignored attributes to simplify choices however we find that these respondents have actually not completely ignored attributes we argue along the rationally adaptive behavioural model that valid preference information may indeed be elicited in these cases and we illustrate how recoding of non attendance statements conditional on stated reasons may be a more appropriate solution than the current standard way of taking stated non attendance into account

protest beliefs in contingent valuation explaining their motivation abstract the definition and treatment of protest responses in contingent valuation cv can have a significant influence on the estimated values of the good in question if these responses are censored in order to understand how protest responses are motivated in a cv about forest biodiversity in germany we used an item battery to identify respondents protest beliefs the items were measured for all respondents irrespective of their willingness to pay wtp in principle then a scale based on these beliefs is taken as a dependent variable of regression analyses in addition to environmental concern we used norms the warm glow of giving and dilemma concern as further explanatory variables the latter focuses on cooperation problems in protecting the environment our results show that protest beliefs are significantly influenced by the explanatory factors furthermore the protest beliefs themselves have a significant effect on the decision to be wtp as well as on the amount of money stated by those who are wtp the censoring of protest responses may therefore be indefensible

dichotomous choice contingent valuation with dont know responses and misreporting a new approach is presented that simultaneously deals with misreporting and don t know dk responses within a dichotomous choice contingent valuation framework utilising a modification of the standard bayesian probit framework a gibbs with metropolis hastings algorithm is used to estimate the posterior densities for the parameters of interest several model specifications are applied to two contingent valuation datasets one on wolf management plans and one on the us fee demonstration program we find that dks are more likely to be from people who would be predicted to have positive utility for the bid therefore a dk is more likely to be a yes than a no we also find evidence of misreporting primarily in favour of the no option the inclusion of dk responses has an unpredictable impact on willingness to pay estimates since it impacts differently on the results for the two datasets we examine copyright c 2009 john wiley sons ltd

fairness in the contingent valuation of environmental public goods attitude toward paying for environmental improvements at two levels of scope abstract respondents to contingent valuation cv surveys give a variety of reasons for not wanting to pay money this variability is likely to reflect people s attitudes toward paying for the public good change their attitudes toward paying for public goods in general and a component that is independent of these attitudes but unique to particular beliefs about paying e g i can t afford to pay negative attitudes toward paying can contribute to an apparent insensitivity to different levels of the same public good in a telephone survey northern wisconsin property owners were asked about their wtp for four environmental public goods biodiversity indian spearfishing water quality and wolves at two levels of scope part and whole for water quality and spearfishing the part was a chain of lakes that was geographically nested within a larger region of lakes similarly the biodiversity whole represented a region comprising the smaller level of the public good the scope conditions for wolves were quantitatively nested levels of returning 300 and 800 wolves to northern wisconsin respondents beliefs about paying for each public good and level of scope were measured in order to test their generality across the different public goods and levels of scope negative attitudes toward paying that are general across public goods place restrictions on the use of cv for environmental public goods however negative attitudes that are tied to specific environmental public goods suggest that the valuation method might be difficult to implement in these cases only moreover negative attitudes toward paying that are either general or specific may contribute to perfect embedding when they are expressed across different levels of scope for the same public good respondents beliefs about paying for each public good were associated with an attitude toward paying for the respective good and an attitude toward paying for public goods in general at both levels of scope the general attitude was more explanatory of beliefs about paying for wolf reintroduction and spearfishing than were the specific attitudes the distribution of beliefs was sensitive to the type of good being valued but less so to the scope of the public good change contingent valuation practitioners should seek improvements in respondents perceptions of the fairness of the valuation process in order to facilitate citizens involvement in decisions about environmental public goods avenues for future research are proposed and discussed

bounded rationality in contingent valuation empirical evidence using cognitive psychology abstract survey based valuation techniques like the contingent valuation method cvm rely particularly on the premise of respondents rationality when answering willingness to pay wtp questions results of cvm surveys have repeatedly put this fundamental assumption into question this study adopts a more realistic view of rationality accounting for respondents limited capacities to process information based on cognitive psychology a technique to detect and analyze the bounds of rationality inherent in wtp statements is developed using an empirical example the influence of bounded rationality on the validity of cvm results is analyzed it is shown that individual differences in information processing play a major role for the validity of cvm responses the results allow new insights into response behavior in dichotomous choice versus payment card elicitation formats from the results of this study recommendations for future survey designs taking into account respondents different information processing modes are developed

using neuroeconomics to understand environmental valuation contingent valuation choice experiments and other stated preference methods are frequently used to capture the nonmarket valuation of natural resources and ecosystem services the emerging field of neuroeconomics which assesses the neuroscience underlying decision making plots a promising course to explore the mechanisms underlying complex environmental valuation decisions neuroeconomic methods offer a unique capacity to isolate value components that contribute to willingness to pay wtp separating an individual s response to natural resource attributes that are of interest to economists from other attributes or influences on the decision process neuroimaging data can also aid in understanding differences in response between preference elicitation techniques and identifying the use of different decision processes and heuristics during valuation this article surveys the benefits and limitations of using neuroeconomics methods to assess the value of environmental goods and focuses on three examples where neuroeconomics may inform environmental valuation protest responses comparison of hypothetical and consequential choice contexts and the evaluation of environmental attributes and optimization of study design in stated choice experiments neuroeconomics methods offer a foundation for positive collaboration between environmental economists and cognitive neuroscientists yielding metrics that complement and augment current stated preference methods of determining environmental valuation

contingent valuation and the activation of environmental norms abstract this paper uses contingent valuation cvm as the context in which to explore the implications of a model of altruistic norm activation a model is presented which provides a framework for thinking about the factors that individuals consider when formulating their responses to cvm questions and the processes by which they bring such factors together the activation of personal environmental norms and hence positive willingness to pay depends on four main categories of belief awareness and acceptance of environmental need consequences of personal action responsibility for personal action and acceptance of policy initiatives the model is illustrated with a qualitative case study and some of the implications for cvm are considered in light of these findings it is argued that whilst notions of fairness may not present problems from a demand prediction economic standpoint such notions may be more problematic for the cost benefit analysis use of results

analysing decision behaviour in stated preference surveys a consumer psychological approach this paper applies a typology adapted from the consumer psychology literature to a contingent valuation method cvm survey we argue that the typology is helpful as a way of identifying responses that contain useful information on preferences for the environmental good in question relative to those which are unlikely to contain such information applying this framework to a cvm study of agri environmental payments in germany we find that some 90 of responses are preference revealing this distribution changes when the framing of the good is changed the typology may be of most use during the design stage of future cvm studies since it enables researchers to increase the fraction of responses that are useful

determinants of the price premium for green energy evidence from an oecd cross section using data from a survey of households in 11 oecd countries this paper investigates the determinants of preferences for a completely green residential electricity system three important questions are addressed i how much are households willing to pay to use only renewable energy ii does willingness to pay wtp vary significantly across household groups and countries and iii what drives the decision to enter the hypothetical market for green energy and given entry what drives the level of wtp the analysis here differs from previous studies on green energy in two ways first data and analyses are comparable across countries and second a comprehensive attempt is made to understand 0 wtp and to accommodate using a censored quantile regression cqr framework unobserved heterogeneity the survey data indicate a low wtp at 11 12 of current electric bill this study also addresses a key question how important is income for understanding wtp relative to more attitudinal determinants the effect of income overall appears ambiguous with tobit like models indicating that income is not significant while the cqr indicates that income exerts a significant effect near the center of the distribution of wtp across all frameworks used a key determinant of wtp appears to be environmental attitudes particularly membership in an environmental organization

preferences of scotch malt whisky consumers for changes in pesticide use and origin of barley abstract in a case study related to scotch malt whisky production this study analyses consumers perceptions and preferences regarding two aspects that have emerged in the debate on sustainable production and consumption and on environmentally responsible food choice namely i the use of pesticides in agriculture and ii the provenance of food ingredients we carried out a choice experiment to investigate preferences and estimate willingness to pay of scotch malt whisky consumers for pesticide use restrictions and the potential impact on the production of one of its essential ingredients barley using latent class models we find that about half of the respondents are non demanders with respect to both attributes and only a third of the sample population are willing to pay for further pesticide restrictions demand for more environmentally responsible production of scotch malt whisky is therefore limited indicating that in the case of scotch malt whisky consumers are not likely to be key to driving sustainable production with respect to barley provenance being able to claim a 100 scottish product could be a plausible commercial option for some producers to pursue in a competitive market methodologically the scale adjusted latent class model proved to be successful in uncovering preference heterogeneity and its sources in including non demanders in the analysis and in accounting for differences in scale amongst respondents

modeling the effect of social factors on improving biodiversity protection the aim of this study is to investigate the effect of social factors expressed as social and institutional trust social norms and social networks on the decision of individuals to pay for improvement of environmental protection of biodiversity for this purpose an empirical study was carried out in two national parks of northern greece three scenarios were proposed differing in the management options regulatory market based and community based scenarios and the payment mechanism our empirical results show that social capital variables especially social norms and social trust have a strong influence both on the decision of individuals to pay and the specific amount stated specifically we find that social norms have a positive influence for the willingness to pay wtp of individuals of a state tax and an entrance fee regulatory and market based scenario respectively furthermore social trust has a positive impact for the wtp through an entrance fee and a community tax market based and community based scenario respectively we also find a higher wtp of individuals towards the market based scenario where participation of citizens is higher compared to the current management status concerning the impact of demographic factors we find that income does not influence the specific amount stated by individuals

protesting and justifying a latent class model for contingent valuation with attitudinal data this article develops a latent class model for estimating willingness to pay wtp for public goods using simultaneously contingent valuation cv and attitudinal data to identify individuals with similar characteristics such as wtp and protest attitudes we find evidence that the answer to the cv question influences the responses to the attitudinal questions in our case this influence reflects rational behavior budget constraint issues and justification biases related to protest reasons such as lack of trust in institutions or fairness issues with respect to the distribution of the burden of preservation the results from our empirical application confirm the importance of accounting for those biases

reducing protest responses by deliberative monetary valuation improving the validity of biodiversity valuation this paper focuses on examining the validity of biodiversity valuation methodologies the results of a group deliberation technique deliberative monetary valuation are compared to those derived from a contingent valuation cv survey using the same environmental topic evidence is here presented that dmv can address some of the limitations of cv namely a prevalence for lexicographic preference ordering due to psychological reasons and the lack of a priori or well formed preferences both of these methodological shortcomings can result in protest responses which decrease the external validity of results it is common environmental valuation methodology practice to exclude protest responses from the analysis on the grounds that they are illegitimate choices thus the sample and consequently the environmental valuation analysis may become less representative of the population an advantage of the dmv methodology is that it was found to significantly reduce the rate of protest responses to less than half from 29 to 13 furthermore dmv significantly increased the proportion of positive bids but not the amounts contributed in relation to preference formation issues we suggest rethinking the current practice of the dmv method and propose dedicating the entire initial discussion session to introducing the good outside of a valuation context