design and analysis of simulated consumer choice or allocation experiments an approach based on aggregate data the authors integrate concepts in conjoint analysis and discrete choice theory in econometrics to develop a new approach to the design and analysis of controlled consumer choice or resource allocat

estimating stated preferences with rated pair data environmental health and employment effects of energy programs abstract respondents stated preferences for attributes related to various electricity generation scenarios are analyzed using a series of pairwise ratings multiple observations for each respondent facilitate estimating individual scale parameters scale estimates can identify uninformative rating patterns and make it possible to delete such observations or adjust wtp calculations cross section time series analysis of the data indicates that nonprice attributes increase in salience during the course of the experiment thus later responses may be better indicators of preferences than earlier responses comparisons of polychotomous with dichotomous models indicate that most respondents relative preference ratings are not simply dichotomous but discriminate systematically along the rating scale

conformity and the demand for environmental goods the existing literature on eco labeling and green consumerism has been framed within a classical market context where price and quality are the drivers of consumer choice however it seems possible that consumers are also concerned about the choices made by other consumers in fact it is unclear that people s consumption decisions are made independently of social context for instance under the desire to conform to certain social norms or in the presence of status concerns some individuals may be willing to pay a higher price premium for green products the more widespread green consumerism is in society we test this hypothesis using a choice experiment where the respondents were asked to choose among coffee products varying with respect to their share of ecological beans share of fair trade beans and price three treatments were used differing only in the information given about the choices made by other consumers we find different responses to the treatments across individuals and we can only confirm our hypothesis of conformity for women although men appear to have stronger preferences for ecological coffee than women have

suit the action to the word the word to the action hypothetical choices and real decisions in medicare part d in recent years consumer choice has become an important element of public policy one reason is that consumers differ in their tastes and needs which they can express most easily through their own choices elements that strengthen consumer choice feature prominently in the design of public insurance markets for instance in the united states in the recent introduction of prescription drug coverage for older individuals via medicare part d for policy makers who design such a market an important practical question in the design phase of such a new program is how to deduce enrollment and plan selection preferences prior to its introduction in this paper we investigate whether hypothetical choice experiments can serve as a tool in this process we combine data from hypothetical and real plan choices elicited around the time of the introduction of medicare part d we first analyze how well the hypothetical choice data predict willingness to pay and market shares at the aggregate level we then analyze predictions at the individual level in particular how insurance demand varies with observable characteristics we also explore whether the extent of adverse selection can be predicted using hypothetical choice data alone

a comparison of contingent preference models i compare the informational efficiencies of contingent rating contingent ranking and two contingent paired comparison methods as alternatives to the referendum contingent valuation method the contingent rating method is hypothesized to be most efficient because ratings convey information on preference intensities and can uniquely represent respondent indifference or ambivalence survey data on hunters ratings of alternative hypothetical hunting trips are used to estimate four alternative indirect utility models from which marginal willingness to pay measures for individual trip attributes are derived model comparison wtp estimates and their confidence intervals confirm the relative efficiency of the contingent rating approach

effect of government quality grade labels on consumer demand for pork chops in the short and long run abstract despite ample evidence of pork quality variability at present there are few signals that would incentivize growers to produce higher quality pork using split sample choice experiment data from a nationwide online survey of u s pork chop eaters this research determines changes in pork chop demand in response to a potential change in u s government policy that would introduce a new pork quality grading system based on color scores our simulations include novel short run projections in which the conditional and latent class logit models are inverted to yield inverse demand curves the inverse demand curves are used to calculate equilibrium prices and pork revenue given a fixed supply of different pork qualities we supplement these calculations with a more traditional long run analysis in which prices are fixed and quantities of different qualities adjust compared to the status quo control of no quality grades we find that two grading systems based on alternative nomenclatures select choice prime vs good better best both have the potential to increase pork chop sales and revenue to the pork industry however we also find that if only the highest quality is labeled revenue could fall as the increase in demand for the higher quality is offset by the fall in demand for the lower qualities results also highlight important heterogeneity in consumer preferences and although sensory studies strongly suggest redder pork chops are more highly preferred there remains a non trivial share of consumers who prefer whiter pork even after quality grade labeling overall this study offers several insights that can help inform labeling and quality grading policies

estimating willingness to pay for a cycling event using a willingness to travel approach abstract this study examines the monetary value of nonmarket benefits to participants of an active sport tourism event such as happiness and pride from participating in an event willingness to travel wtt greater distances for future events is assessed and converted into willingness to pay wtp estimates using travel costs using survey data from the 2014 and 2015 blood sweat gears bike ride the intended visitation models show that changes in travel cost have a significant negative effect wtp to revisit the event was between 41 and 57 the likelihood of return visit decreases as travel costs increase indicating that wtp estimates are internally valid wtp estimates stemming from two years of data collection are stable suggesting that they are also temporally reliable this study demonstrated the feasibility of using stated preference wtt questions to assign a monetary value to nonmarket benefits of active sport tourists

consumer valuation of health attributes for soy based food a choice modeling approach abstract given that soy foods possess health promoting attributes that offer the promise of reducing heart related chronic diseases this article employs choice experiments to estimate marginal willingness to pay wtp for soy attributes including taste contents of soy protein and health claim random parameter logit rpl models were estimated in consideration of potential heterogeneity across individuals in their preferences for soy food standard deviation parameters in the rpl models are highly significant indicating that individuals have widely varying preferences for soy based food products results suggest that while taste is the dominating attribute that drives consumers wtp for soy food products consumers do respond to the information provided in the health claim yet consumers do not seem to be recognizing soy protein as the link to health benefits of soy foods

impact of ex ante hypothetical bias mitigation methods on attribute non attendance in choice experiments in this article we use survey data from nigeria on consumers preferences for organic products to investigate the impact of ex ante hypothetical bias mitigation methods cheap talk and honesty priming on respondents attribute non attendance we employ a framework that allows us to jointly examine the response to the stated choice component and the response to the attribute processing questions while avoiding the potential endogeneity bias and measurement error problems arising from some attribute non attendance methods our results show that the incidence of attribute non attendance varies across the treatments in general with significant difference in attribute non attendance rates between respondents exposed to the mitigation strategies honesty priming and cheap talk and the baseline group we also find that the low willingness to pay values for the honesty priming task appear to correspond with the lowest attribute non attendance rates reported for all the attributes especially price and might reflect a more realistic valuation of the attributes

electric and plug in hybrid vehicle demand lessons for an emerging market understanding demand in the new plug in hybrid electric vehicle phev market is critical to designing more effective adoption policies we use stated preference data from an innovative choice experiment to estimate demand for phevs relative to battery electric vehicles bevs and to explore heterogeneity in demand for these vehicles we find the gap between willingness to pay for phevs and their price premium over conventional vehicles is on the order of current subsidies while that of bevs is an order of magnitude larger we use a latent class model to show phevs draw a different consumer segment into the market jel q5 r41

inferred and stated attribute non attendance in food choice experiments we review the current literature on attribute non attendance in stated choice and use data from beef and chicken choice experiments using both inference and the respondents own statements inference is based on panel data analysis by mixed logit models of choice with both discrete and continuous mixtures of coefficients and is conditional on the observed pattern of choice information from respondent statements on non attendance is directly embedded in the specification of the indirect utility function results show no clear winner between the inferential approaches but the inference based on constrained latent class panel models better matches the observed data

an experimental approach to valuing new differentiated products abstract an experimental store was created to evaluate initial demand for locally produced and guaranteed tender steak products as a more realistic alternative to contingent valuation cv and dichotomous choice experimental methods strengths of the approach are incentive compatibility a realistic consumption set and a familiar choice environment consumers selected among usda choice premium quality lean guaranteed tender and locally produced strip steaks a double hurdle count data model indicated initial willingness to pay wtp for locally produced steak comparable to prior cv results but demand was highly elastic demand for premium quality steak crowded out demand for the guaranteed tender product contrasting with prior dichotomous choice experimental results

who participates in household scanning panels we compare two widely used household scanning panels maintained by the nielsen company and information resources inc to a random sample of the u s population results indicate that the demographic characteristics of the random sample more closely match the census bureau data than the household scanning panels we also show that after controlling for demographic differences participants in the household scanning panels are slightly more price sensitive than participants in the random sample the two household scanning panels yield similar results in relation to one another which suggests that the household scanning panels may suffer from sample selection and participation biases

consumers willingness to pay for the color of salmon a choice experiment with real economic incentives in most retail markets sellers post the price and consumers choose which products to buy we designed an experimental market with posted prices to investigate consumers willingness to pay for the color of salmon salmon fillets varying in color and price were displayed in twenty choice scenarios in each scenario the participants chose which of two salmon fillets they wanted to buy to induce real economic incentives each participant drew one binding scenario the participants then had to buy the salmon fillet they had chosen in their binding scenario the choice data were analyzed with a mixed logit model

a cost benefit analysis of restoring the em river in sweden valuation of angling site characteristics and visitation frequency this article uses cost benefit analysis cba to evaluate restoration scenarios aimed at improving angling on the em river in sweden we find that none of the proposed projects are socially profitable when considering only values associated with angling we rely on a choice experiment ce to derive utilities and estimate the monetary value of angling site characteristics and then also use the utilities derived in a visitation frequency using a two stage budgeting approach the visitation frequency is then used to extract values for fishing license sales and business related income the case study illustrates how cba can provide useful insights into the potential economic returns of environmental restoration projects our case study also indicates that the results in terms of willingness to pay wtp and visitation frequency are general findings i e they appear similar across angling sites which is particularly useful from a policy point of view because it supports the use of benefit transfer for more cost effective river management

sources and effects of utility theoretic inconsistency in stated preference surveys goods and services cattin and wittink louviere more recently health economists have recognized sp as an appropriate technique for quantifying health care preferences johnson banzhaf and desvousges johannesson jbnsson and karlsson ryan and hughes sp analysis encompasses several multiresponse multiattribute preferenceelicitation techniques that allow respondents to systematically evaluate trade offs among multiple environmental attributes or among environmental and nonenvironmental attributes

demand for beef from cattle administered growth hormones or fed genetically modified corn a comparison of consumers in france germany the united kingdom and the united states we compare consumer valuations of beef ribeye steaks from cattle produced without growth hormones or genetically modified corn in france germany the united kingdom and the united states results suggest that french consumers place a higher value on beef from cattle that have not been administered added growth hormones than u s consumers however valuations of non hormone treated beef are statistically indistinguishable across germany the united kingdom and the united states results also suggest that european consumers place a much higher value on beef from cattle that have not been fed genetically modified corn than u s consumers copyright 2003 oxford university press

production technology option value the case of rbst in michigan agricultural producers are increasingly required to adjust production practices to satisfy retailer and ultimately consumer preferences this article highlights the option value that underlies decisions related to production technologies using the case of michigan dairy farmers and recombinant bovine somatotropin rbst welfare impacts were calculated for dairy producers when milk production systems which allowed the use of rbst were eliminated from the producer choice set those dairy producers using rbst just before its elimination realized a higher welfare loss than those not using the technology however significant welfare impacts were found for all dairy producers indicating that all producers valued the option to use this production technology

reservation price as a range an incentive compatible measurement approach abstract drawing from the literature on buyers uncertainty in preference and product knowledge the authors suggest and empirically test the proposition that a consumer s reservation price for a product is more meaningfully and accurately represented as a range than as a single point given this conceptualization they propose an approach for incentive compatible elicitation of a consumer s reservation price range icerange that builds on becker degroot and marschak s 1964 point of purchase method two empirical applications of the approach provide an assessment of its practicality and its predictive performance relative to current methodologies for reservation price elicitation the results demonstrate that the proposed method significantly outperforms the benchmark approaches in terms of predictive validity and yields valuable incremental information about uncertainty in product valuation

how should consumers willingness to pay be measured an empirical comparison of state of the art approaches abstract this study compares the performance of four commonly used approaches to measure consumers willingness to pay with real purchase data real the open ended oe question format choice based conjoint cbc analysis becker degroot and marschak s bdm incentive compatible mechanism and incentive aligned choice based conjoint icbc analysis with this five in one approach the authors test the relative strengths of the four measurement methods using real as the benchmark on the basis of statistical criteria and decision relevant metrics the results indicate that the bdm and icbc approaches can pass statistical and decision oriented tests the authors find that respondents are more price sensitive in incentive aligned settings than in non incentive aligned settings and the real setting furthermore they find a large number of none choices under icbc than under hypothetical conjoint analysis this study uncovers an intriguing possibility even when the oe format and cbc analysis generate

are choice experiments incentive compatible a test with quality differentiated beef steaks this study compares hypothetical and nonhypothetical responses to choice experiment questions we test for hypothetical bias in a choice experiment involving beef ribeye steaks with differing quality attributes in general hypothetical responses predicted higher probabilities of purchasing beef steaks than nonhypothetical responses thus hypothetical choices overestimate total willingness to pay for beef steaks however marginal willingness to pay for a change in steak quality is in general not statistically different across hypothetical and actual payment settings

measuring heterogeneity survey engagement and response quality in preferences for organic products in nigeria abstractthe identification of the market potentials of organic products is important in the drive towards a sustainable agricultural development in sub saharan africa ssa however available evidence shows that valuing attributes of credence goods such as organic products while using stated preference methods faces additional obstacles compared to other normal goods in this study we examine consumers preferences and willingness to pay wtp for health and environmental attributes of organic products in nigeria we employ an approach that allows us to adequately capture the value of organic products by linking part of the heterogeneity across respondents to differences in scale while making use of indicators of survey engagement without risks of endogeneity bias and measurement error that arise from the deterministic methods the empirical results show that market for organic products exists in nigeria with reduction in pesticide residues attribute attracting the highest value followed by the ce

are consumers in developing countries willing to pay more for micronutrient dense biofortified foods evidence from a field experiment in uganda vitamin a deficiency is a major health problem in africa and in many other developing countries biofortified staple crops that are high in pro vitamin a have the potential to reduce the prevalence of vitamin a deficiency using a choice experiment with the real product in uganda we quantify the magnitude of the premium or discount in consumers willingness to pay wtp that may be associated with it results suggest that taste plays an important role in consumer acceptance and the provision of nutrition information does translate into substantial premiums for the biofortified variety there is a substantial hypothetical bias in the wtp for the new varieties and while cheap talk mitigates this bias it does not eliminate it

non parametric tests of consumer behaviour the neoclassical model of consumer behaviour postulates that a consumer s choice behaviour can be described as deriving from utility maximization subject to a budget constraint one is then naturally led to ask what this model implies about observed behaviour this question has been addressed from two quite distinct approaches the first approach originating in the work of slutsky 1915 and antonelli 1886 derives necessary and sufficient conditions involving the derivatives of the demand functions the second approach originating in the work of samuelson 1938 1947 1948 derives algebraic conditions on the demand functions implied by maximizing behaviour

what experimental protocol influence disparities between actual and hypothetical stated values preferences elicited in hypothetical settings have recently come underscrutiny causing estimates from the contingent valuation method to bechallenged due to perceived hypothetical bias given that the receivedliterature derives value estimates using heterogeneous experimentaltechniques understanding the effects of important design parameters onthe magnitude of hypothetical bias is invaluable in this paper we addressthis issue statistically by using a meta analysis to examine data from 29experimental studies our empirical findings suggest that on averagesubjects overstate their preferences by a factor of about 3 in hypotheticalsettings and that the degree of over revelation is influenced by thedistinction between willingness to pay and willingness to accept publicversus private goods and several elicitation methods

forest tenure reform in china a choice experiment on farmers property rights preferences decentralization experiments are currently underway in the chinese forestry sector however researchers and policy makers tend to ignore a key question what do forest farmers really want from reform this paper addresses this question using a survey based choice experiment to investigate farmers preferences for various property rights attributes of a forestland contract we found that farmers are highly concerned with the types of rights provided by a contract reducing perceived risks of contract termination and introducing a priority right for the renewal of an existing contract significantly increases farmers marginal willingness to pay for a forest contract

are choice experiments reliable evidence from the lab this study investigates whether a popular stated preference method the choice experiment ce reliably measures individuals values for a good we address this question using an induced value experiment our results indicate that ces fail to elicit payoff maximizing choices we find little evidence that increasing the salience of the choices or adding monetary incentives increase the proportion of payoff maximizing choices this questions the increasing use of ce to value non market goods for policy making

the estimated ex ante economic impact of bt cowpea in niger benin and northern nigeria genetically modified gm crops could increase economic growth and enhance living standards in africa but political issues have slowed the use of biotechnology this is the first study that assesses the potential impact of gm crops in africa while considering the preferences of producers and consumers towards gmos as well as the income and price risks they face the study uses a choice experiment to estimate the ex ante economic impact of a novel technology bacillus thuringiensis bt cowpea on producers and consumers in benin niger and northern nigeria the experiment involves the simulation of a market transaction similar to those in open air markets in west africa during the market simulation respondents are informed about the advantages and disadvantages including health risks of bt cowpea the results from the study suggest that cowpea growers and consumers in benin and northern nigeria prefer bt to conventional cowpea for health safety reasons the results estimate that social welfare in benin niger and northern nigeria would increase by at least us 11 82 per capita annually with bt cowpea if seed sectors are operating smoothly with inefficiencies in seed sectors and the potential for cowpea acreage increase the estimated social welfare increase in the region would be about us 1 26 per capita annually

how closely do hypothetical surveys and laboratory experiments predict field behavior we compare the ability of three preference elicitation methods hypothetical choices nonhypothetical choices and nonhypothetical rankings and three discrete choice econometric models the multinomial logit mnl the independent availability logit ial and the random parameter logit rpl to predict actual retail shopping behavior in three different product categories ground beef wheat flour and dishwashing liquid overall we find a high level of external validity our specific results suggest that the nonhypothetical elicitation approaches especially the nonhypothetical ranking method outperformed the hypothetical choice experiment in predicting retail sales we also find that the rpl can have superior predictive performance but that the mnl predicts equally well in some circumstances experiment

how do consumers in developed countries value the environment and workers social rights in developing countries this paper uses a lab experiment to investigate developed countries consumer valuations of characteristics linked to the environment and workers social rights in developing countries it focuses on seafood products and distinguishes between regular environmentally friendly and fair trade varieties consumer valuations are elicited with a multiple price list results show that environmental and social labels have similar effects on participant willingness to pay when they are first presented using welfare variation coming from the labels we also show that the absence of negative information linked to the regular variety may lead to an underestimation of the value of information associated with the label

human capital matching and job satisfaction we offer an explanation of the negative tenure effect in empirical job satisfaction equations if job satisfaction measures match quality the explanation follows from specific human capital accumulation and how this affects workers reactions to outside job opportunities

the bunch of sustainability labels do consumers differentiate abstract a huge number of sustainable labels addressing the different pillars of sustainability emerged over the last years some labels promote factors which already imply other sustainability issues e g organic incl animal friendliness to a certain extent hence the question arises how consumers react towards the redundancies of different sustainability labels to add to the literature this study applies a latent class model for discrete choices first to test whether consumers take different sustainable labels into account when making their decision and second to test how consumers deal with different sustainable labels that are partly claiming the same aspect results indicate that three consumer segments with well distinguished preferences and willingness to pay measures for the respective attributes can be identified one group being the price sensitives exclusively deciding on the product with the lowest price regardless of any sustainable attribute of the product another group opts for products with a sustainable label without any clear preference for a specific sustainable attribute but expressing a clear willingness to pay more for all presented sustainable labels i e the label choosers a third group can be named price conscious label discriminators for them some sustainable aspects provide negative utility when labelled exclusively e g organic or free of genetically modified organisms but labelled together e g organic together with free of genetically modified organisms or animal welfare it provides them significantly positive utility even though being redundant by definition based on our findings there is no general statement to be made regarding the question whether different sustainable aspects complement or substitute each other the research rather emphasizes that a differentiated look at different consumer types and different labels symbolizing sustainability is needed the research adds to the existing literature by examining not only the relevance and acceptance of different sustainable labels to different consumer segments but also the interrelationship of different sustainable labels the study clearly shows that with regard to different sustainable labels the more the merrier does not always apply however almost 85 of the market could be satisfied with a universal sustainability label

self regulation and the enforcement of professional codes this study examines society s choice of inputs for the creation of trust in professional services professional codes and their enforcement are only one possible input that society has at its disposal for the production of this trust other inputs include civil and criminal codes if society is modeled as a multi input firm then it will tend to use less of any input as that input grows less productive or more costly to identify factors that might impact society s future use of professional self regulation as a trust producing input the productivities and costs of enforcing professional codes are modeled

on mandatory labeling of animal welfare attributes this paper assesses us resident support for mandatory labeling of animal welfare information on pork and egg products and outlines policy considerations for assessment prior to implementing any mandatory labeling policies regarding animal welfare practices results suggest consumers support mandatory labeling indicating use of gestation crates stalls and laying hen cages estimates suggest consumers would be willing to pay about 20 higher pork and egg prices to obtain this production practice information demographic and latent perception drivers of this support are highlighted multiple issues that warrant consideration prior to imposing mandatory labeling are discussed revealing lines of corresponding future research

do hypothetical and actual marginal willingness to pay differ in choice experiments application to the valuation of the environment abstract in this paper we test the validity of choice experiments with donations for environmental projects in particular we test whether or not there are differences in preferences between a hypothetical and an actual choice experiment our experiments indicate no differences in addition internal tests of validity indicate transitive and stable preferences in both experiments although there are some indications of possible learning effects during the experiment

are results from non hypothetical choice based conjoint analyses and non hypothetical recoded ranking conjoint analyses similar conflicting findings have been found in previous research that compared choice based conjoint analysis and ranking conjoint analysis in a public good setting the present paper revisits this issue for a private good in a non hypothetical context using small and large choice sets our results suggest that in a small choice set setting participants preferences and willingness to pay are similar across the two conjoint analysis formats however in large choice sets a divergence between the two conjoint analysis formats emerges hence the two conjoint analysis formats can only be used interchangeably in small choice sets not in large choice sets

environmental choices and hyperbolic discounting an experimental analysis environmental goods such as carbon abatement or green space development often generate benefit streams that may not occur until far into the future how individual consumers value such amenities therefore depends critically on the discount rate the usual assumption is that agents discount future values using constant exponential rate but there is some evidence from the lab suggesting that discount functions are more likely quasi hyperbolic we compare estimates of subjects rate of intertemporal time preference for financial rewards and environmental goods using multiple price list and a new matrix multiple price list approaches our objective is to determine if discount functions for environmental and monetary goods differ and to estimate the structure of discounting in both contexts we find that financial discount functions are not hyperbolic but those for environmental goods are discount rates for environmental goods are generally lower than for financial rewards but are still above zero consumers therefore value long lived environmental goods differently than financial goods

comparing open ended choice experiments and experimental auctions an application to golden rice we use two experimental valuation methods to estimate consumer demand for genetically modified golden rice the first is an open ended choice experiment oece where participants name the quantities of golden rice and conventional rice demanded at each of several price combinations one of which will be randomly chosen as binding this allows us to estimate market demand by aggregating demand across participants this estimate of market demand also allows us to estimate own price elasticity and consumer surplus for golden rice comparing willingness to pay wtp estimates from the oece with those from a uniform price auction we find that oece wtp estimates exhibit less affiliation across rounds and the effects of positive and negative information under the oece are more consistent with prior expectations and existing studies we also find that while auction wtp estimates more than double across five rounds oece wtp estimates are stable across rounds and are always roughly equal to those from the final auction round

low energy efficiency in rental properties asymmetric information or low willingness to pay abstract asymmetric information may explain low energy efficiency in rented properties energy ratings while a solution to the information problem will only lead to higher efficiency levels if renter s willingness to pay wtp exceeds landlord s investment costs using a sample of renters from one university this paper estimates this wtp using a discrete choice experiment where respondents choose from a hypothetical set of single bedroom apartments that differ according to a number of attributes including the energy rating results show that there is a strong disutility associated with the least efficient properties and that renters will pay significantly more for efficiency improvements at the lower end of the efficiency scale importantly our wtp estimates are calculated in a setting where respondents were informed about the energy rating system prior to choosing and where the rating was shown for every property therefore in order to maximise the impact of energy rating systems policymakers are encouraged to ensure that both these informational characteristics are in place

using cheap talk as a test of validity in choice experiments abstract in two experiments on the choice of consumer goods the estimated marginal willingness to pay for food is found to be lower in the survey version with cheap talk our test can be seen as a test of hypothetical bias this implies that we cannot reject the hypothesis of a hypothetical bias for marginal wtp in choice experiments

the impact of deal proneness on wtp estimates in incentive aligned value elicitation methods even after controlling for hypothetical biases some incentive aligned value elicitation methods still produce different willingness to pay wtp estimates in this study we compare wtp estimates from three incentive aligned value elicitation methods real choice experiment rce real double bounded dichotomous contingent valuation rcvm and becker degroot marschak auction bdm we find that participants aggressiveness in obtaining low prices i e deal proneness influences wtp estimates in the bdm auction but not those elicited from the rce and rcvm the participants with higher levels of deal proneness tend to submit lower bids in the bdm auction the discrepancies in wtp estimates between different incentive aligned procedures are narrower for participants with lower levels of deal proneness our results indicate that the bids in bdm auctions may be understated and the auction mechanism may induce the gambling behavior of people who are deal prone that is whether the bdm auction is truly incentive aligned is again called into question we also discuss the practical implications for food retailers

an incentive compatible conjoint ranking mechanism a simple method for making ranking based conjoint analysis incentive compatible is proposed the incentive compatible mechanism involves people purchasing a product profile with a probability proportional to its assigned rank in an empirical application related to consumer preferences for beef attributes we find that the forecasted market share for a new pasture raised steak obtained using incentive compatible rankings was significantly greater than that implied from traditional hypothetical conjoint rankings people s rankings of ground beef products were not affected by the mechanism or by information about pasture raised beef copyright 2008 oxford university press

consumer benefits of labels and bans on gm foods choice experiments with swedish consumers the european union has been relatively cautious about using biotechnology in food production a label regime combined with the right of individual member states to ban introduction of new genetically modified gm strains means that gm food products in effect are banned in many countries we show how it is possible to empirically test whether a ban can be motivated by reference to potential negative externalities this is followed up by results from a choice experiment we cannot reject the hypothesis of equal wtp for a ban and a labeling scheme

releasing the trap a method to reduce inattention bias in survey data with application to u s beer taxes this study uses discrete choice experiments to explore the efficacy of prompts targeted at reducing inattention bias upon receiving feedback inattentive respondents are given the opportunity to reanswer a so called trap question that checks for attentiveness we find that individuals who miss trap questions and do not correctly revise their responses have significantly different choice patterns as compared to individuals who correctly answer the trap question adjusting for these inattentive responses has a substantive impact on policy impacts results based on attentive participant responses indicate that a minimum beer price would have to be substantial to substantially reduce beer demand jel c83 q18 q51

consumers willingness to pay for eco friendly apples under different labels evidences from a lab experiment abstract an experiment was conducted in france to evaluate the impact of health and environmental information on consumers choices between conventional and organic apples results show that additional and precise messages about both pesticides use and pesticides residues significantly impact consumers choices between both products the experiment also studied the effect of a new label signaling apples that only use few pesticides compared to conventional apples with elicited willingness to pay we show that the introduction of this new label increases the average participants surplus whatever the information context for participants because of a higher quality compared to conventional apples and a lower price compared to organic products in order to complement this label a minimum quality standard imposing the use of few pesticides is socially optimal when initial participants knowledge is limited

discounting the distant future an experimental investigation we use a laboratory experiment to elicit discount rates over a 20 year time horizon using government savings bonds as a payment vehicle when using a constant exponential discount rate function we find an implied average discount rate of 4 9 which is much lower than has been found in previous experimental studies that used time horizons of days or months however we also find strong support for non constant declining discount rates for longer time horizons with an extrapolated implied annual discount rate approaching 0 5 in 100 years there is heterogeneity in discount rates and risk preferences in that people with more optimistic beliefs about technological progress have higher discount rates these findings contribute to the debate over the appropriate discount rate to use in comparing the long term benefits of climate change mitigation to the more immediate costs

habit spillovers or induced awareness willingness to pay for eco labels of rice in china abstract the willingness to pay wtp for eco labeled rice is investigated for chinese consumers using choice experiments with information interventions the mixed logit model shows preference heterogeneities and the latent class model unveils two sources pro environmental behaviors with spillover effects which are defined as catalyst behaviors and the awareness about imperatives of ecological farming which is defined as induced awareness classification results identify that using bp bags and sorting waste are catalyst behaviors as the multivariate ordered probit model implies consumers with higher educational attainment and family income levels are more likely to adopt these behaviors instead of creating the preference for eco labels the induced awareness is only found to strengthen preferences that already exist the results of this study provide policy implications for the design of proper strategies to develop the eco labeled food market especially in developing economies

complementarity between water pricing water rights and local water governance a bayesian analysis of choice behaviour of farmers in the krishna river basin india to ensure efficient water allocation and use policy designers have adopted various strategies including price setting decentralising irrigation water management or improving water rights most of these strategies have been applied individually without considering the complementary relationships between them this paper uses a discrete choice model to analyse the scope for combinations of tools for irrigation water demand management and farmers acceptance of these in terms of local irrigation water governance the presence or absence of collective irrigation water management in the form of a water users association is considered water rights are specified in terms of the duration and quality of the entitlement and its transferability finally four types of water pricing methods area crop block and volumetric pricing are considered using a choice experiment we elicit the most preferred water pricing method under different water rights situations at different price levels and under various contexts for local irrigation water governance our results indicated that under conditions of improved water rights preference for volumetric pricing increases whilst the presence of a water users association reduces this preference furthermore it was found that using an appropriate combination of water demand management tools considerably increases the willingness to pay for a change in scenario

are valuations from nonhypothetical choice experiments different from those of experimental auctions due to the importance of comparability and external validity of results nonhypothetical experimental methods are increasingly used to elicit consumers willingness to pay for various goods two of the increasingly popular preference elicitation methods are the nonhypothetical choice experiments and experimental auctions we conduct experiments to compare willingness to pay estimates elicited from both methods our results generally suggest that valuations elicited from experimental auctions can differ from those obtained from nonhypothetical choice experiments copyright 2011 oxford university press

choke price bias in choice experiments this paper reports on the results from a split sample choice experiment where the effect of changing the maximum level of the cost attribute is investigated the hypothesis was that changing the maximum price level would either give rise to an income effect or have no effect on consumers preferences this was tested in the framework of a valuation study of different quality characteristics of minced pork the data was analysed using a mixed logit error component model which accounts for correlation in the unobserved part of the utility results suggest that the size of the maximum price level does matter and that changing the maximum price level has a statistically significant effect on both the general preferences structure and the wtp estimates hence researchers should be very careful when defining not only the range of the price attribute but also the maximum level of the price attribute

the state of the art of environmental valuation with discrete choice experiments abstract this paper provides with a review of the state of the art of environmental valuation with discrete choice experiments dces the growing body of literature on this field serves to emphasize the increasing role that dces are playing in environmental decision making in the last decade the paper attempts to cover the full process of undertaking a choice experiment including survey and experimental design econometric analysis of choice data and welfare analysis the research on this field is found to be intense although many challenges are put forward e g choice task complexity and cognitive effort experimental design preference and scale heterogeneity endogeneity or model uncertainty reviewing the state of the art of dces serves to draw attention to the main challenges that this methodological approach will need to overcome in the coming years and to identify the frontiers in discrete choice analysis

accounting for changes in tastes health concerns are thought by many to have shifted consumption away from red meats though econometric evidence is mixed testing for structural change is difficult especially when one time series is used for both estimating demand equations and testing their stability specification errors may suggest a shift where none has occurred using nonparametric demand analysis we find that meat consumption patterns in the united states and australia can be explained using only relative prices and expenditures only imposing particular functional forms can reverse the conclusion suggesting that specification errors in econometric demand studies can account for findings of taste changes

the influence of task complexity on consumer choice a latent class model of decision strategy switching the literature indicating that person context and task specific factors cause consumers to utilize different decision strategies has generally failed to affect the specification of choice models used by practitioners and academics alike who still tend to assume an utility maximizing omniscient indefatigable consumer this article 1 introduces decision strategy selection within a maintained compensatory framework into aggregate choice models via latent classes which arise because of task complexity 2 it demonstrates that within an experimental choice task the model reflects changing aggregate preferences as choice complexity changes and as the task progresses the import of these findings for current practice model interpretation and future research needs is examined

designing choice sets for stated preference methods the effects of complexity on choice consistency abstract we vary the complexity of choice sets used in stated preference methods to evaluate the impact on choice consistency we define five measures of complexity that capture either the amount of information or the correlational structure of information in a choice set using these measures as randomly assigned treatments in a large experiment we analyze the consistency of respondents choices using a heteroskedastic multinomial logit model we find that i all of our measures of choice set complexity affect choice consistency ii changes in the correlational structure of information have the largest impact on choice consistency and iii choice complexity significantly distorts welfare estimates our results confirm economists initial worry that moving from contingent valuation to conjoint methods will increase complexity induced choice inconsistency however our analysis also shows that these negative impacts may be mitigated if precautions are taken at the design and estimation stages of stated preference methods

preferences with and without prices does the price attribute affect behavior in stated preference surveys the experimental as well as the non market valuation literature include several examples of how an introduced price can affect behavior in otherwise not expected ways it has become standard to include a price vector as an attribute in choice experiments something that enables us to estimate a marginal willingness to pay for other attributes we test the impact on preferences by an inclusion of a price in a choice experiment preferences are affected as might be expected however also the relative ranking of individual attributes is affected

value elicitation in retail and laboratory environments abstract an increasing number of studies have begun conducting economic experiments in field rather than laboratory settings we directly compare results from laboratory and field valuation experiments after controlling for unengaged bidders results indicate field valuations were greater than laboratory valuations results are discussed in the context of recent literature on commitment costs

recreation demand models with taste differences over people we estimate random parameter logit models of anglers choice of fishing site the models generalize logit by allowing coefficients to vary randomly over anglers rather than being fixed the models do not exhibit the restrictive independence from irrelevant alternatives property of logit and can represent any substitution pattern estimation explicitly accounts for the fact that the variation in coefficients over anglers induces correlation in unobserved utility over trips by the same angler willingness to pay for improved fish stock and the value to anglers of specific sites are calculated from the models and compared with the estimates obtained from a standard logit model

heterogeneous preferences regarding global climate change we examine the structure of preferences for mitigating impacts of global climate change that will not occur during the lifetimes of most who are alive today because no market data exist for such distant markets a statedpreference approach is used the analysis is based on the random parameters logit model and the results indicate substantial heterogeneity in respondent preferences that mean willingness to pay is a significant and increasing function of the scope of the impact and provocatively that respondents have the same preferences over the two very different time horizons that we consider e examine the structure of preferences for mitigating impacts of global climate change that will not occur during the lifetimes of most who are alive today studies using current market data have estimated the potential costs of climate change on agriculture mendelsohn nordhaus shaw 1994 and on other aspects of measured production nordhaus 1994 but market data can not reveal the willingness of those currently alive to pay for measures to mitigate impacts that may not happen for 100 years or more there is serious public discussion involving diplomats at the highest levels about measures to mitigate emissions that would cost the united states alone 100 to 200 billion dollars annually therefore estimating the willingness of those currently alive to pay for mitigation measures is not a fanciful exercise but rather a crucial effort to determine how much mitigation should be undertaken it is the preferences of those alive today regarding acceptable levels of climate impacts and not the unknowable preferences of those who do not yet exist that will ultimately determine how much mitigation we pursue in the next quarter century as this question cannot be answered with market data we use the stated preference sp approach and elicit preferences for preventing climate change induced impacts a host of climate change impacts have been enumerated this study focuses on one type of impact that may be important but has received little attention from economists scientists have predicted that widespread ecosystem shifts may accompany changes in climate vemap 1995 ecosys tem shifts are likely to evolve slowly indicating that lost use values are likely to be small for those alive today yet the public may still be willing and asked to pay for mitigation measures that are designed to slow the transformation of ecosystems the current debate over climate change demon strates two things the first is that some people do care about long term changes that will never affect them or perhaps even their children the second is that preferences regarding the impacts of climate change are very heterogeneous as other members of the public appear much less concerned long term horizons combined with heterogeneous prefer ences makes ecosystem shifts a useful place to begin analyzing preferences for mitigating climate change im pacts a stated preference survey was designed that asked respondents to choose their most preferred program to reduce ecological impacts from a set menu of five or six different programs the programs varied in terms of costs the degree of ecosystem change and in the mitigation method four different menus provided to each respondent yielded four distinct valuation responses section ii de scribes the random parameters logit model for repeated choices that allows for a flexible correlation structure based on heterogeneous preferences the ecosystem change and the stated preference survey are discussed in section iii in section iv we estimate the random parameters model and estimate the willingness to pay to prevent various levels of ecosystem change section v concludes with a discussion of how the scope of the impact preference heterogeneity and the time horizon affect willingness to pay

effects of label information on consumer willingness to pay for food attributes choice experiments ces are often used to elicit consumer willingness to pay wtp for food attributes a concern about these approaches is that food attributes provided to respondents are assumed independent of attributes not provided we use surveys containing a series of ces to investigate effects of adding beef steak attributes wtp for important attributes in the ces decrease when the number of attributes increases from three to four while wtp increases when the number of attributes increases from four to five changes in wtp for attributes depend on their relationships with newly added attributes and the number of attributes presented copyright 2007 oxford university press

impact of satisficing behavior in online surveys on consumer preference and welfare estimates conducting online surveys through consumer panels has become increasingly popular for researchers to assess consumers preferences and attitudes for the purpose of obtaining welfare estimates because they are inexpensive flexible and allow for fast feedback interestingly few studies have examined the behaviors of online survey panelists particularly their satisficing behaviors on welfare measures this study demonstrates the use of validation questions trap questions to detect survey respondents satisficing behavior and its impact on consumer choice willingness to pay wtp and consumer surplus cs estimates we find that respondents who fail a validation question vq are more likely to violate the weak axiom of revealed preferences warp in the choice experiment the estimates for preference parameters wtp and cs are statistically different between those who pass and those who fail the vq in addition the wtp and cs from respondents passing the vq in general have smaller variances than those from respondents failing the vq these results indicate that without controlling for potential satisficing behaviors online surveys may produce less efficient estimates estimates with larger variance of welfare measures

dynamic hypothetical bias in discrete choice experiments evidence from measuring the impact of corporate social responsibility on consumers demand abstract this paper is aimed at studying the dynamics of consumers preferences for corporate social responsibility the data come from both a discrete choice experiment dce and a field experiment conducted in a real market setting the results show that in a static setting first month predictions of a standard dce study and real market shares are statistically similar for the various profiles of corporate social responsibility however as time evolves real market shares present some dynamic patterns that are not mirrored by the standard dce predictions the overall conclusion is that differences between real market behavior and dce data can be attributed to the lack of learning experience or adaptation in dce surveys rather than to the hypothetical nature of the experiments

using a discrete choice experiment to elicit the demand for a nutritious food willingness to pay for orange maize in rural zambia using a discrete choice experiment this paper estimates the willingness to pay for biofortified orange maize in rural zambia the study design has five treatment arms which enable an analysis of the impact of nutrition information comparing the use of simulated radio versus community leaders in transmitting the nutrition message on willingness to pay and to account for possible novelty effects in the magnitude of premiums or discounts the estimation strategy also takes into account lexicographic preferences of a subset of our respondents the results suggest that a orange maize is not confused with yellow maize and has the potential to compete with white maize in the absence of a nutrition campaign b there is a premium for orange maize with nutrition information and c different modes of nutritional message dissemination have the same impact on consumer acceptance

health related externalities evidence from a choice experiment health related external benefits are of potentially large importance for public policy this paper investigates health related external benefits using a stated preference discrete choice experiment framed in a health care context and including choice scenarios defined by six attributes related to a recipient and the recipient s condition communicability severity medical necessity relationship to respondent location and amount of contribution requested subjects also completed a set of own treatment scenarios and a values orientation instrument we find evidence of substantial health related external benefits that vary as expected with the scenario attributes and subjects value orientations the results are consistent with a number of hypotheses offered by the general theoretical analysis of health related externalities and the analysis of externalities specific to health care

measuring the relative importance of preferences for country of origin in china france niger and the united states recent labeling policies in developed countries place new focus on origin labeling especially country of origin labeling for a variety of food products it is not clear if this new emphasis on origin is the result of more ethnocentric consumer preferences for food we measure consumer preferences for country of origin in four different international locations and one domestic control location using a conjoint experiment to test the null hypotheses that consumers do not have stronger own country preferences in addition we compare the relative importance of consumer preferences for origin to their preferences for genetically modified food and pesticide free production using attribute coefficients from within location ordered probit models the study was conducted in china france niger and the united states we find consumers tend to prefer food from their own location indicating ethnocentric tendencies do play a role in shaping country of origin preferences country of origin is generally less important to consumers than genetically modified food content and pesticide use in food production