factors influencing differences between survey and market based environmental value measures a unique us database combining survey and housing data is used to obtain household level stated and market based willingness to pay wtp measures to avoid living near landfills systematic differe

transport and low carbon fuel a study of public preferences in spain abstract transport is essential for the control of future greenhouse gas ghg emissions and thus a target for active policy intervention in the future yet social preferences for policies are likely to play an important role in this paper we first review the existing literature on preferences regarding low ghg car fuels but also covering policy instruments and strategies in this area we then present the results of a survey of spanish households aimed at measuring preferences for climate change policies we find a positive willingness to pay wtp in the form of higher car fuel prices for a policy to reduce ghg emissions through biofuels there is however significant heterogeneity in public preferences due to personal motivations accounted for via factor analysis of responses to attitudinal questions and to socio demographic variables

the theory of mixed demand functions abstract the properties of samuelson s mixed demand functions which express demand as a function of a mixed set of prices and quantities are derived by analyzing compensated or substitution effects and uncompensated effects the relationships between mixed demand functions and conditional or rationed demands are examined this provides insights on the behavioral implications of consumer theory for alternative demand specifications

arbitrary values good causes and premature verdicts abstract this paper offers an alternative interpretation of the conclusions kahneman and knetsch propose based on two contingent valuation cvm surveys the evaluation argues that while framing is important to cvm estimates the design implementation and empirical findings reported from these surveys do not support their judgments moreover with the exception of temporal embedding conventional economic descriptions of individual behavior can explain the response patterns that they suggest are at variance with standard value theory

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

testing for non response and sample selection bias in contingent valuation analysis of a combination phone mail survey we use a combination phone mail survey to test for possible sample biases in contingent valuation we find no sample selection bias but do find non response bias we show how failure to correct for non response bias distorts aggregate benefit estimates

estimation using contingent valuation data from a dichotomous choice with follow up questionnaire reply abstract our original article proposed that the two yes no willingness to pay wtp responses produced by this survey format should be viewed as a pair of jointly distributed correlated discrete random variables the comparison model the conventional approach to estimation using these types of data contained a programming error correction alters the results from the comparison model but our original claim that estimation by conventional methods can produce misleading inferences if ours is the appropriate specification still stands this is especially true if negative wtp is precluded when e wtp is calculated

some evidence on lump sum versus convex costs of changing prices 2 two models in which price stickiness results from price adjustment costs are tested one an s s pricing model assumes lump sum adjustment costs and predicts firms will make relatively large infrequent price changes the other assumes convex adjustment costs and predicts frequent partial price adjustments survey data of firms price behavior reveal patterns consistent with the s s model however many of the patterns are also consistent with partial adjustment rules although the high percentage of firms which fix prices for a quarter or more casts doubt on the plausibility of the partialadjustment hypothesis i introduction in new keynesian economics price stickiness arises not because of wage rigidity so much as because either the gains to individual firms from changing prices are negligible or the costs of doing so deter full and immediate price changes as a result nominal shocks which affect demand for the firm s product as well as real shocks give rise to changes in output the nature and the timing of the effects of demand changes such as those initiated by monetary policy thus depend on how individual firms respond to the signals they receive sticky price models based on costs of price adjustment take at least two different forms one assumes a lump sum cost to changing prices which leads to predictions that firms generally keep prices fixed and make infrequent relatively large price changes the other assumes convex adjustment costs and leads to the prediction that firms make relatively small and frequent partial adjustments toward a target level evidence drawn from a series of surveys conducted by the national federation of independent business will be used to test the predictions from these two types of models while the data do not allow a definitive test between the two models the available evidence supports the model with lump sum costs of changing prices with the important proviso that there be substantial heterogeneity in the relative costs to firms of making price changes so that the frequency and size of changes vary considerably across firms ii s s rules with lump sum costs of price changes how frequently should a firm change its price when a change takes place how large should it be sheshinski and weiss 1977 and barro 1972 provided the first answers to these questions in their models an individual firm incurs a lump sum cost when changing its nominal price and the firm s profits depend on its real price where real price is defined as the firm s nominal price divided by an index of the prices of all other firms in the economy sheshinski and weiss assume that the firm tries to maximize the present value of its real profits their solution amounts to what is known in the optimal inventory literature as an s s rule in which s s units are ordered when stocks run down to s as applied to a pricing rule when prices rise elsewhere in the economy the firm s real price falls to a lower bound s at which point the firm raises its nominal price so that its real price jumps to s they prove that a more rapid general inflation rate calls for a lower s and higher s furthermore subject to a monotonicity condition a higher general inflation rate calls for a shorter time between price changes after showing a number of numerical examples sheshinski and weiss report that numerical experiments with a quadratic profit function give high intervals between price changes 1 2 years even with very low adjustment costs 1977 300 when the profit function is flat in the neighborhood of the profit maximizing real price there is little benefit from changing price a similar argument appears in the menu cost explanation for real effects of nominal disturbances in the absence of private incentives for individual price changes there may be real aggregate effects of nominal disturbances for example see mankiw 1985 akerlof and yellen 1985 kuran 1986 blanchard and kiyotaki 1987

comparative reliability of the dichotomous choice and open ended contingent valuation techniques abstract the comparative reliability of dichotomous choice and open ended contingent valuation methods cvm is evaluated by resurvey of the same households 9 months after their original survey test retest correlations on willingness to pay are statistically significant at the 1 level and range from 0 57 for the dichotomous choice cvm to 0 62 for the open ended cvm the test retest correlations were not statistically different between dichotomous choice and open ended cvm a likelihood ratio test for temporal stability of each method s willingness to pay functions indicates stability half of the time for both methods

markups aggregation and inventory adjustment in this paper i suggest a unified explanation for two puzzles in the inventory literature first estimates of inventory speeds of adjustment in aggregate data are very small relative to the apparent rapid reaction of stocks to unanticipated variations in sales second estimates of inventory speeds of adjustment in firm level data are significantly higher than in aggregate data the paper develops a multisector model where inventories are held to avoid stockouts and price markups vary along the business cycle the omission of countercyclical markup variations from inventory targets introduces a downward bias in estimates of adjustment speeds obtained from partial adjustment models when the cyclicality of markups differs across sectors this downward bias is shown to be more severe with aggregate rather than firm level data similar results apply not only to inventories but also to labor and prices montercarlo simulations of a calibrated version of the model suggest that these biases are quantitatively significant

social demand for electricity from forest biomass in spain does payment periodicity affect the willingness to pay in this article we analyze social preferences for a partial substitution programme of electricity generated by conventional energy sources for energy generated from a local renewable energy source such as forest biomass this analysis sets arguments in favour of accelerating the introduction of this renewable technology in the spanish electricity system simultaneously two methodological goals concerning the contingent valuation method are discussed in the first one we analyze if there are statistical differences in the willingness to pay wtp when a single or a double bounded format is employed to ask the valuation question results show that wtp estimates from single and double bounded significantly differ in the second one we analyze the effect of the periodicity of the payment vehicle on the estimates of welfare change the timeframe specification of the payment vehicle has been scarcely studied and this fact constitutes the main contribution of this paper to the specialized literature results show that periodicity influences upon the probability to favour the proposed change the periodicity does not affect to the mean wtp obtained in the single bounded format but there are statistical differences in the double bounded format these results might be explained by the presence of yea saying and payment scale bias

the causes of order effects in contingent valuation surveys an experimental investigation contingent valuation researchers have found that the hypothetical values respondents place on a nested sequence of environmental goods are sensitive to the order in which the goods are presented typically the smallest bundle of goods is valued more highly if presented first than if following more comprehensive bundles such effects appear even when each bundle is valued from an exclusive list or as an alternative to any other so that income and substitution effects are controlled we conduct lab experiments where participants are asked to value sequences of nested goods for purchase from an exclusive list using an incentive compatible becker degroot marschak mechanism we test whether order effects occur in valuation for a induced value goods b actual private goods and c identical private goods that are to be donated to charities we find significant order effects when the goods are valued for own use but not when they are valued for donation

using factor analysis to identify consumer preferences for the protection of a natural area in portugal abstract this paper focuses on the application of factor analysis so as to identify consumer preferences for the protection of a natural area we combine the use of factor analysis with the valuation data obtained by contingent valuation survey the survey conducted via in person questionnaires in 1997 is targeted at the economic valuation of the protection benefits of the parque natural alentejano e costa vicentina a natural protected area along the southwest coastline of portugal factor analysis results show that the consumer is characterized by a three factor motivational structure use warm glow and non use motivation factor respectively we introduce these motivation factors together with the respondent s socio economic characteristics in the economic valuation function of such natural protected area estimation results show that consumer motivation factors have an econometrically robust role therefore consumer motivations are interpreted as crucial information for accurate social cost benefit analysis of alternative protection scenarios and thus serve as an important cornerstone in designing an effective and broadly accepted management policy for the parque natural alentejano e costa vicentina

can contingent valuation distinguish economic values for oifferent public goods this paper reports the first test eval uating whether stated choices as part of a contin gent valuation survey discriminate between signifi cant and trivial causes using a random digit dialed sample for north carolina two different plans were posed to respondents one to expand a popular north carolina highway flower planting program nationwide and a second to facilitate the use of recycled tires in making asphalt for highways ran dom assignment identical payment mechanisms and overall question designs were used the results indicate clear discrimination in choices choice functions and the estimated willingness to pay for the two plans jel q26 d71

decomposition of warm glow for multiple stakeholders stated choice valuation of shellfishery policy a monetary valuation study of marine management in the dutch wadden sea the largest natural area of the netherlands is presented the study is motivated by a conflict between shellfisheries and large populations of birds that forage on cockles different management scenarios are valued using multiple stakeholders namely dutch citizens local residents tourists policy makers and natural scientists a considerable difference in willingness to pay wtp between these groups is found in addition the influence of motivational profiles is examined estimates confirm the presence of two such motivations namely material and moral warm glow these allow for decomposition and correction of the wtp estimates

a satisfactory benefit cost indicator from contingent valuation abstract standard economic concepts are used to develop a model of individual behavior when subject to the constraints of the contingent valuation choice context the model yields refutable consequences that are consistent with previously reported empirical findings including some that have been thought to be anomalous the model is used to show that different contingent valuation formats have predictably different performance characteristics notably the hicksian compensating measures are satisfactory benefit cost indicators when elicited using any one of several formats identified in the text of the formats examined one form of a policy referendum appears to have the most satisfactory characteristics overall we conclude that contingent valuation is a progressing research program

simple solutions to the initial conditions problem in dynamic nonlinear panel data models with unobserved heterogeneity i study a simple widely applicable approach to handling the initial conditions problem in dynamic nonlinear unobserved effects models rather than attempting to obtain the joint distribution of all outcomes of the endogenous variables i propose finding the distribution conditional on the initial value and the observed history of strictly exogenous explanatory variables the approach is flexible and results in simple estimation strategies for at least three leading dynamic nonlinear models probit tobit and poisson regression i treat the general problem of estimating average partial effects and show that simple estimators exist for important special cases copyright 2005 john wiley sons ltd

application of stochastic choice modeling to policy analysis of public goods a case study of air quality improvements this paper demonstrates the applicability of the stochastic choice method in performing policy analysis of changes in public goods using survey data the air quality problem studied involves air pollution control for the tampa bay area of florida and relatively simple choices between changes in a public good and disposable income it illustrates the use of surveys as a public forum in which preferences are revealed 26 references 2 tables

moving to opportunity in boston early results of a randomized mobility experiment this paper examines the short run impacts of a change in residential neighborhood on the well being of low income families using evidence from a program in which eligibility for a housing voucher was determined by random lottery we examine the experiences of households at the boston site of moving to opportunity mto a demonstration program in five cities families in high poverty public housing projects applied to mto and were assigned by lottery to one of three groups experimental offered mobility counseling and a section 8 subsidy valid only in a census tract with a poverty rate of less than 10 percent section 8 comparison offered a geographically unrestricted section 8 subsidy or control offered no new assistance but continued to be eligible for public housing our quantitative analyses of program impacts uses data on 540 families from a baseline survey at program enrollment a follow up survey administered l to 3 5 years after random assignment and state administrative data on earnings and welfare receipt 48 percent of the experimental group and 62 percent of the section 8 comparison group moved through the mto program one to three years after program entry families in both treatment groups were more likely to be residing in neighborhoods with low poverty rates and high education levels than were families in the control group however while members of the experimental group were much more likely to be residing in suburban communities than were those in the section 8 group the lower program take up rate among the experimental group resulted in more families remaining in the most distressed communities households in both treatment groups experienced improvements in multiple measures of well being relative to the control group including increased safety improved health among household heads and fewer behavior problems among boys experimental group children were also less likely to be a victim of a personal crime to be injured or to experience an asthma attack there are no significant impacts of either mto treatment on the employment earnings or welfare receipt of household heads in the first three years after random assignment

decisiveness attitude expression and symbolic responses in contingent valuation surveys abstract despite suggestions that respondents to contingent valuation studies often follow alternate models of individual decision making few theoretical models have been developed the paper presents a theoretical model of symbolic and attitude expressive contingent valuation responses drawing on relevant contributions in psychology and political science it is argued that the highly symbolic and emotional nature of many environmental issues often activates the need for individuals to express their attitudes and values which when coupled with a perceived non decisiveness of individual questionnaire responses can result in value expressive considerations dominating some cvm responses at the expense of the desired outcome appraisal economic tradeoffs the implications for some topical issues in cvm are explored

the interrelationship between price and output decisions and investment decisions microfoundations and aggregate implications abstract this paper develops a model of firm behavior in which both price and output decisions and investment decisions are made the model permits an analysis of the dynamics of inventory and capital accumulation on price and output behavior there are two main results 1 short run price and output levels will differ from long run levels as desired stocks of inventory and capital diverge from actual levels 2 the size of the elasticities of price and output to changes in demand and cost variables depends on the speed with which gaps between desired and actual stocks are closed through investment

information bias in contingent valuation effects of personal relevance quality of information and motivational orientation abstract a laboratory experiment examined the potential for information bias in contingent valuation cv consistent with the view that information about a public or private good can function as a persuasive communication willingness to pay wtp was found to increase with the quality of arguments used to describe the good especially under conditions of high personal relevance under low personal relevance wtp for a public but not for a private good was higher when an altruistic as opposed to an individualistic orientation was activated it is concluded that the nature of the information provided in cv surveys can profoundly affect wtp estimates and that subtle contextual cues can seriously bias these estimates under conditions of low personal relevance

does residential location matter to the employment of tanf recipients evidence from a dynamic discrete choice model with unobserved effects abstract we study the factors affecting the employment probability of temporary assistance for needy families tanf recipients using recent quarterly panel data from atlanta georgia a central focus of our study is to determine whether the tanf recipient s proximity to job opportunity and the availability of childcare affect her probability of full time employment both static and dynamic models of employment choice are estimated that control for unobserved individual effects we estimate models separately for a sub sample of tanf recipients living in public housing whose residential locations can be considered exogenously determined we find substantial evidence that individual and family characteristics such as the education of the recipient and the number of children and adults in her family are important determinants of the employment probability of welfare recipients on the other hand location related variables are found to be relatively unimportant

the validity of the contingent valuation method perfect and regular embedding this article deals with one aspect of the validity claim of the contingent valuation method namely to what extent does the method produce different values in situations for which economic theory claims different values two aspects of this validity test perfect and regular embedding were tested in a field experiment comprising six samples of the dutch population perfect embedding occurs when the value for a specific good is similar to the value for a more inclusive good perfect embedding did not manifest itself in the experiment respondents considered a package of six goods as well as a package of two goods more valuable than one of these goods it is argued that this supportive evidence of the method s validity claim occurred because the goods involved were well defined regular embedding occurs when the same good receives a lower value if the value for it is inferred from the value for a more inclusive good rather than if that good is valued on its own regular embedding was only found when respondents were given the opportunity to value the inclusive good before valuing the specific good respondents who were given information on the inclusive good without valuing it did not state different values than respondents who were not given that information it seems that respondents perceive an inclusive good as being relevant to their valuation decision only when they are asked to value it further research is necessary to shed more light on the underlying processes that may account for this

willingness to pay of committed citizens a field experiment in this paper we propose a behavioral approach to determine the extent to which the consumer citizen distinction affects interpretations of monetary values in stated preferences methods we perform a field experiment dealing with air pollution where some randomly selected subjects are given the opportunity to behave politically by signing a petition for environmental protection prior to stating their private preferences in a standard contingent valuation exercise we show that signing has the potential to influence respondents willingness to pay values results indicate that even market like situations are not immune to citizen behavior

reliability and predictive validity of contingent values does the nature of the good matter abstract because the contingent valuation mechanism cvm elicits verbal reports of maximum willingness to pay and not actual willingness to pay analysts have expressed doubts about the reliability and validity of contingent values for commodities such as environmental amenities this skepticism is usually attributed to the amorphous nature of the commodity and to peoples lack of familiarity or experience however our comparison of two commodities which lie at polar extremes of the private good public good continuum suggests that the nature of the good may have little influence on the reliability and predictive validity of the cvm instead aspects of the cvm itself e g explicit payment obligation may be more important for high intention behavior consistency

signals or noise explaining the variation in recreation benefit estimates this paper uses meta analysis to summarize the benefit estimates derived from travel cost recreation demand models after reviewing approximately 200 published and unpublished studies prepared from 1970 to 1986 77 were found to report either consumer surplus estimates or sufficient information to derive them using these estimates of the consumer surplus per unit of use from each study it was possible to evaluate the influence of variables describing the site characteristics the activities undertaken at each site the behavioral assumptions and the specification decisions the findings provide clear support for using econometric methods to summarize results from diverse empirical studies they highlight the important research issues in model development and offer a consistency check to the procedures used in benefit transfer analyses for policy evaluations

on the choice of funtional form for hedonic price functions this study examines how errors in measuring marginal attribute pric es vary with the form of the hedonic price function in simulations consumers with known utility functions bid for houses with given attributes various forms of the hedonic function are estimated using equilibrium housing prices errors in estimating marginal attribute prices are calculated by comparing each consumer s equilibrium marginal bid vector with the gradient of the hedonic function when all attributes are observed linear and quadratic box cox forms produce lowest mean percentage errors however when some attributes are unobserved or are replaced by proxies linear and linear box cox functions perform best copyright 1988 by mit press

personality and economic choices abstract there is substantial variation in individual preferences for public goods yet much of that variation remains poorly understood however simple measures of personality can help to explain economic values and choices in a systematic way in this paper we examine the effects of personality on individual economic choices over public environmental goods based on three datasets from three separate stated preference studies we use a hybrid choice econometric framework to examine the effects of personality on preferences for the status quo changes in environmental quality and costs of investing in environmental improvements we find effects that are consistent across all datasets personality a stable feature of an individual s character that is simple to measure enriches explanations of why the demand for environmental goods varies across people provides an indication of how different people are likely to react to the introduction of environmental policies and explains substantial differences in willingness to pay

three reasons to use annual payments in contingent valuation surveys convergent validity discount rates and mental accounting abstract we present three arguments for using ongoing annual payments in contingent valuation cv surveys that estimate the benefit of a long lasting environmental improvement first by matching the duration of the payments with the duration of the environmental benefits survey respondents are spared from performing complicated present value calculations second willingness to pay wtp estimates from cv surveys that include ongoing annual payments best match wtp estimates obtained using travel cost surveys third respondents are less likely to face binding mental budget constraints with ongoing annual payments than with a larger one time payment in addition respondents discount rates may be estimated by collecting non hypothetical individual time preference data as part of the valuation survey

valuing public goods with the contingent valuation method a critique of kahneman and knetsch the social stakes in the use and abuse of the contingent valuation method cvm are very high recent developments in environmental law have elevated the cvm to the status of a refutable presumption in cases brought under certain statutes it is no longer adequate for economists to sniff at the continued popularity of the cvm in such cases it is instead incumbent on economists to come to some conclusions as to the domain under which the cvm may or may not be correctly applied one should not expect a simple thumbs up or thumbs down assessment in this matter such an expectation would be naive with respect to the inherent complexity of the issue not to mention the financial incentives that expert witnesses might have to breed as if controversy in an adversarial legal system in this context the strong admonitions of kahneman and knetsch 3 kk against the casual use of the cvm must be carefully examined they present what they believe to be evidence to support the claim that the cvm suffers from an embedding effect and that any reported willingness to pay wtp is best interpreted as the purchase of moral satisfaction rather than as a measure of the value associated with a particular public good i argue that their evidence is insufficient to test the implied hypotheses that it is incorrectly reported and that it is in large measure fully consistent with received economic theory

market perceptions and inventory price employment plans ordered probit analyses of national federation of independent business survey data show that individual firms generally conform to the stock adjustment model of inventory investment with the predicted response more likely when inventories are perceived as excessive than when deficient contrary to inferences about slow adjustment speeds from aggregate data inventory adjustments by individual firms do not tend to take more than three months to complete there is no evidence that price is used to achieve desired inventory targets but prices are sticky in that changes set in motion one quarter tend to continue into the next quarter copyright 1989 by mit press

inflation and asymmetric output adjustments by firms i introduction recent empirical research has rejuvenated interest in the idea that output responds asymmetrically to monetary shocks cover 1988 found that in the usa during the post wwii period positive shocks to the money supply had no effect on output whereas negative shocks reduced output his results have been corroborated by de long and summers 1988 and morgan 1993 using different time periods and measures of monetary shocks results from karras 1996a b suggest output asymmetry may be an international phenomenon the reasons for output asymmetry remain unclear they may be due to asymmetries anywhere in the transmission of monetary shocks to output asymmetric price adjustment by firms is one possible explanation but to date the evidence concerning price asymmetry has been mixed using data from 38 countries karras 1996b finds no evidence of price asymmetry in response to money supply shocks whereas studies of the effect on inflation of aggregate output gaps by laxton meredith and rose 1995 and turner 1995 imply that money supply shocks are more inflationary as an economy approaches full capacity and less inflationary when an economy approaches low capacity the aim of this paper is to test whether output responds asymmetrically to shocks and to evaluate the role of firm pricing behavior our approach is different from previous studies in several respects we use micro level firm data we evaluate both output and price asymmetry for a common sample of firms and we evaluate the influence of inflation the only previous empirical work examining the influence of inflation on output asymmetry is rhee and rich 1995 who find that the asymmetric relationship between monetary shocks and aggregate output revealed by cover is influenced by inflation we use individual firm data obtained by a survey of new zealand manufacturing firms to estimate a model of output and price change based on a theoretical model of price and output asymmetry developed by ball and mankiw 1994 they consider a situation in which firms make regularly scheduled price changes and by paying a menu cost can also make special adjustments in response to shocks to desired price the presence of menu costs of price adjustment implies a zone of no price change over which shocks to desired price will not result in a change in actual price inflation affects the opportunity cost of not changing price and therefore the position of this zone of no price change asymmetries in the response of prices to shocks therefore arise naturally when there is positive trend inflation and are predicted to be more pronounced at higher rates of inflation ball and mankiw suggest that a corollary of price asymmetry is output asymmetry at high inflation prices are predicted to be more responsive to positive shocks than to negative shocks and output more responsive to negative shocks than to positive shocks as inflation falls these asymmetries are predicted to become less pronounced we evaluate output and price asymmetry and the influence of inflation in two ways first we estimate the zone of no price change and the zone of no output change and evaluate how inflation affects the position of these zones second we evaluate how the response of prices and output to positive and to negative cost and demand shocks vary with inflation using ordered probit analysis we find evidence of output asymmetry and price asymmetry which are systematically related to inflation furthermore the relative behavior of output and prices is consistent with price asymmetry being an explanation for output asymmetry the remainder of the paper is structured as follows the second section explains why firm prices and output may respond asymmetrically to shocks and the potential role of inflation in this process the third section explains the survey data used to test for asymmetry at different rates of inflation

effects of norms and opportunity cost of time on household recycling social and moral norms and the opportunity cost of time will affect household recycling efforts a model is developed to describe how norms affect the recycling decision through feelings of self respect guilty conscience and warm glow as well as respect in and sanctions from the community we find that the opportunity cost of time has a significant negative effect on household recycling all indicators of warm glow social and moral norms increase household recycling efforts we find no evidence of crowding out neither when recycling is perceived as mandatory nor when economic incentives are introduced in the form of a differentiated garbage fee

environmental costing for agriculture will it be standard fare in the farm bill of 2000 this paper starts by discussing and estimating the environmental costs of agricultural production the author uses a separate benefit transfer intended to expose methodological issues to construct each cost category of agricultures s external effects this is followed by a simple description of the framework for production decisions that account for environmental costs included are attribution of environmental externalities and measurement of environmental costs finally the author discusses research implications of environmental costing including tqm and environmental policy analyses environmental services and their unit values strategies for measuring environmental values and prognosis for agricultural adders 42 refs 1 fig 1 tab

plausible responsiveness to scope in contingent valuation plausible responsiveness to scope is a question of economic significance in addition to statistical significance of the scope test in contingent valuation we briefly review the history of the scope test in order to place the current issue in the context of the bp deepwater horizon oil spill as a result of the review we gain insights into how the issue of scope adequacy arose twenty years after it was first mentioned by the noaa panel on contingent valuation following the exxon valdez oil spill we then provide a review of desvousges mathews and train 2012 who promote the adding up test to identify inadequate responsiveness to scope adequacy the adding up test is a test of the construct validity of the contingent valuation method but is flawed as a measure of economic significance we propose scope elasticity of willingness to pay as a measure of economic significance a simulation suggests a likely range of elasticity estimates given linear and quadratic functional forms for the willingness to pay function in order to illustrate the ease of implementation of scope elasticity within the context of the standard scope test we calculate scope elasticity with willingness to pay estimates from several studies describe two studies that directly estimate scope elasticity and estimate scope elasticity with primary data from two studies all of these empirical estimates of scope elasticity fall within the range of scope elasticity suggested by the simulation scope elasticity provides a practical way forward relative to the adding up test on the issue of economic significance of scope effects

the citizen versus consumer distinction an exploration of individuals preferences in contingent valuation studies abstract contingent valuation has been used extensively in estimating the value of environmental goods one criticism of this approach however is that respondents in referendum style contingent valuation surveys may express citizen assessments that take into account benefits to others rather than benefits that accrue purely to the respondent themselves within this context the aim of this paper is to examine to what extent individuals express different preferences when adopting a personal or a social citizen perspective while this paper provides some support for the hypothesis that individuals express different preferences when adopting collective as opposed to personal choices reported willingness to pay wtp was found to be insensitive to whether or not the respondents were asked the wtp question from a personal or social perspective

part whole bias in contingent valuation will scope effects be detected with inexpensive survey methods the purpose of this paper is to test for scope effects with the contingent valuation method we use data from a telephone survey focusing on water quality improvements in the albemarle and pamlico sounds in north carolina we find that the willingness to pay estimates are sensitive to the scope of the policy these results suggest that the use of inexpensive survey methods may not be the cause of the failure to detect scope effects in some recent contingent valuation studies

sequencing and valuing public goods abstract this paper establishes several propositions concerning the importance of context in valuing public goods it first provides necessary and sufficient conditions for the value of a public good to be independent of context utility constant valuation sequences are considered where public goods are systematically made available or taken away for the case of strict hicksian substitutes willingness to pay for an increase in one of the public goods is strictly decreasing the farther out in a sequence it is valued for the destruction of public goods the reverse is true for willingness to accept compensation sequencing has opposite implications for the assessment of the benefits of providing public goods than for the assessment of the damage from destroying them

leadership and conflict we model the choice of leaders of groups within society where leaders influence both the mode of interaction between groups either peaceful compromise or costly conflict and the outcome of these interactions group members may choose leaders strategically instrumentally or they may choose leaders expressively we characterize the equilibria of the instrumental choice model and also argue that leadership elections may overemphasise the role of expressive considerations in the choice of leader and that this may result in increased conflict between groups

valuing public goods a comparison of survey and hedonic approaches although the theory of public goods has progressed rapidly since paul samuelson s seminal article the empirical measurement of the value of demand for public goods only recently has received increased attention perhaps the best known and most widely accepted empirical approach has been the use of hedonic prices wherein for example it is assumed that either wages or housing values reflect spatial variation in public good characteristics of different communities this indirect approach based on theoretical work of charles tiebout kelvin lancaster sherwin rosen and others has proven quite successful among public goods or bads which have been valued using the hedonic approach are climate i hoch air pollution robert anderson and thomas crocker d harrison and d rubinfeld social infrastructure r cummings et al and other community characteristics such as noise level j nelson and ethnic composition ann schnare an alternative approach is to directly ask households or individuals to state their willingness to pay for public goods using survey techniques despite arguments that strategic bias will invalidate survey results there exists the need for an alternative to the hedonic approach as an example consider the case of a remote and unique scenic vista valuable to recreators which is threatened by air pollution from a proposed coal fired plant a typical situation in the western united states although it is possible in principle to impute the value of clean air and visibility from the relative decline in local visitation which might follow construction of a power plant information on the value of visibility at the site is needed prior to construction for socially optimal decision making on plant location and pollution control equipment the hedonic approach is unavailable both because the scarcity of local population as opposed to recreators makes use of wage or property value data impossible and because scenic vistas may themselves be unique for these reasons a randall et al first applied survey methods for valuing visibility and other environmental effects of large coal fired power plants in the four corners region of new mexico since this initial application the survey approach has been widely used to value environmental commodities where market data for hedonic analysis is difficult to acquire see for example brookshire ives and schulze rowe et al brookshire et al other early attempts to value public goods using the survey approach include r davis peter bohm and j hammack and g brown although results of using the survey approach for estimating the value of public goods appear to be internally consistent replicable and consistent with demand theory see schulze et al little work on external validation has been reported thus the purpose of this paper is to report on an experiment designed to validate the survey approach by direct comparison to a hedonic property value study the los angeles metropolitan area was chosen for the experiment because of the well defined air pollution problem and be assistant professor university of wyoming assistant professor university of missouri rolla associate professor university of wyoming and professor university of wyoming respectively the research reported here was funded under a grant methods development for assessing air pollution control benefits from the u s environmental protection agency we would like to give special thanks to alan carlin and shelby gerking for their helpful suggestions and contributions additional helpful comments were received from a myrick freeman iii john tschirhart and james murdoch all conclusions are of course our sole responsibility

cognitive ability and scale bias in the contingent valuation method this study investigates whether or not the scale bias found in contingent valuation cvm studies on mortality risk reductions is a result of cognitive constraints among respondents scale bias refers to insensitivity and non near proportionality of the respondents willingness to pay wtp to the size of the risk reduction two hundred swedish students participated in an experiment in which their cognitive ability was tested before they took part in a cvm study asking them about their wtp to reduce bus mortality risk the results imply that wtp answers from respondents with a higher cognitive ability are less flawed by scale bias

willingness to pay for improved air quality in sweden the aim of the paper is to quantify individual willingness to pay measures of improved air quality in sweden by using the contingent valuation method cvm such measures are important for policy makers when deciding about public investments and policy instruments in order to regulate environmental impacts e g from road transportation and industry the mean willingness to pay wtp for a 50 reduction of harmful substances where the respondents live and work was about 2000 sek year which is of the same order of magnitude as earlier stated preference studies in nordic countries most parameters in the econometric analysis had the expected sign wtp was increasing in income wealth and education it was larger for men members of environmental organizations people living in big cities which are on average more polluted and people who own their house or apartment it was lower for retired people however the additional wtp for people in big cities although significantly higher than for other people

the reliability of estimates of environmental benefits from recreation demand models recreation demand models are commonly employed tools of economists interested in valuing improvements in environmental amenities despite their importance little comparative work has been undertaken to examine the ability of the models to accurately estimate welfare changes a simulation study designed to compare the reliability of estimated welfare measures compensating variation and consumer surplus from several commonly employed recreation demand models is presented results of the study indicate that choice of functional form and model specification are important determinants of the resulting estimates of benefits

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

economic valuation of biodiversity a comparative study abstract in recent years an intensive debate on the economic valuation of biodiversity has entered the environmental economics literature the present paper seeks to offer first a critical review of key concepts that are essential for a proper understanding of such evaluation issues particular attention is given here to various monetary valuation approaches and to comparative i e meta analytical methods from the perspective of conservation and sustainable use of biodiversity several illustrative examples are presented in order to highlight the usefulness of the various approaches discussed next an attempt is made to infer general findings and lessons from past applied research by means of meta analysis in this context a multi dimensional technique originating from the field of artificial intelligence is deployed it allows us to identify the most important variables responsible for changes in economic estimates of biodiversity

social housing neighborhood quality and student performance children who grow up in deprived neighborhoods underperform at school and later in life but whether there is a causal link remains contested this study estimates the short term effect of very deprived neighborhoods characterized by a high density of social housing on the educational attainment of fourteen years old students in england to identify the causal impact this study exploits the timing of moving into these neighborhoods i argue that the timing can be taken as exogenous because of long waiting lists for social housing in high demand areas using this approach i find no evidence for negative short term effects on teenage test scores

on visible choice sets and scope sensitivity abstract in this paper we argue that the burgeoning empirical debate over scope sensitivity within contingent valuation studies is fundamentally incomplete in that it has neglected a systematic examination of certain effects of study design upon observed scope sensitivity in particular we highlight the fact that in certain study designs the choice set initially offered or visible to respondents is changed in a stepwise manner as they progress through a valuation exercise while other designs involve advance disclosure regarding the full extent of the final visible choice set prior to any choices or values being elicited the issue of changes in the visible choice set is alluded to by smith j environ econom manage 22 1 71 who identifies this as a primary challenge to kahneman and knetsch s j environ econom manage 22 1 57 well known experimental results kahneman and knetsch contend that it seems highly implausible that this minor procedural change would significantly alter results p 61 but do not test this assertion we present experimental and field tests of the impact upon contingent values of varying the visible choice set through stepwise and advance disclosure these dimensions of design are interacted with changes in the order in which nested goods are presented bottom up versus top down when a stepwise disclosure procedure is adopted the observed scope sensitivity is substantially and significantly affected by the order in which goods are presented but such procedural variance is not observed within advance disclosure designs conjectures regarding the origin and implications of such findings are presented

economic valuation of the environment how citizens make sense of contingent valuation questions this study adopts a qualitative approach in order to investigate how people make sense of contingent valuation cv questions of a global environmental amenity the objective is not only to capture people s motivations and considerations of willingness to pay wtp but also to determine if they adequately comprehend an economic valuation of such public goods the findings indicate that a large proportion of respondents do not interpret the valuation task as intended however this lack of understanding is not always expressed unless probed in relation to the elicitation question and some people have the tendency to provide monetary estimates anyway whatever meaning they attach to these

willingness to pay and willingness to accept how much can they differ comment i agree with the point made by edoh y amiran and daniel a hagen 2003 that there can be a substantial or even infinite divergence between the wta and wtp for a public good even where there is a nonzero elasticity of substitution between market goods and the public good provided that the indifference curves are asymptotically bounded with respect to market goods in the manner they describe this is an important point they are also correct to point out that the elasticity of substitution is a local concept whereas their asymptotic boundedness condition applies also for discrete changes my 1991 paper used a local analysis because it was following the structure of the analysis in robert d willig 1976 and alan randall and john r stoll 1980 i wanted to show that while randall and stoll appeared to extend willig s local result on wta versus wtp from price changes to changes in the quantity of a public good the relevant elasticity was in fact different and involved the substitution elasticity as well as the income elasticity i view these points by amiran and hagen as not two separate results but essentially the same result their asymptotic boundedness condition generalizes my zero elasticity of substitution condition to discrete changes the asymptotic boundedness condition can be expressed as follows assuming a bivariate utility function u x q and given a reference point x q associated with a reference utility level u u x q there exists some q q such that for all q q there exists no x such that u x q u in other words no amount of x can substitute for the reduction in public good from q to q q in the case of a zero elasticity of substitution q q but as amiran and hagen show in their theorem 1 this is unnecessarily restrictive when dealing with a discrete reduction in q furthermore their theorem 2 can be viewed as a special case of their theorem 1 in which q 0 which makes q an essential commodity it is well known in consumer theory that the wta to avoid the loss of an essential market good is infinite their theorem 2 extends this result to the case of an essential nonmarket good but as their theorem 1 shows essentialness is not necessary for an infinite wta the boundedness condition is the key and this implies a fundamental lack of substitutability between money market goods and the public good

how people respond to contingent valuation questions a verbal protocol analysis of willingness to pay for an environmental regulation abstract this paper investigates what a respondent is thinking when answering a willingness to pay question in a contingent valuation using a think aloud technique from psychology called verbal protocol analysis the willingness to pay responses we observed seem to be constructed from a variety of considerations including an obligation to pay a fair share of the cost of the solution and signaling concern for a larger set of environmental issues the finding that respondents seem to construct their values at the time they are asked rather than reporting a more well defined value is seen as consistent with over two decades of research on the psychology of decision making potential uses of verbal protocols in contingent valuation studies are also discussed

comparing welfare estimates of environmental quality changes from recreation demand models abstract this paper presents a procedure for examining the reliability of welfare estimates resulting from the estimation of multiple site recreation demand models a simulation approach is suggested where a utility function is combined with observations on individual and site characteristics to generate simulated data sets welfare measures associated with an improvement in site quality are calculated recreation demand models are estimated using the simulated data sets estimated welfare measures resulting from the recreation demand models are then compared to the true welfare measures calculated from the simulated data the procedure is demonstrated using two commonly employed recreation demand models

an empirical analysis of backlog inventory production and price adjustments an application of recursive systems of log linear models this article presents an empirical analysis of firms order backlogs inventories production and price adjustments to unanticipated demand shocks the data are obtained from quarterly insee business survey tests on firms realizations expectations and appraisals of some various economic variables the analysis is based on the formulation and the estimation of a recursive system of conditional log linear probability models

the structure of motivation for contingent values a case study of lake water quality improvement abstract critics of the contingent valuation cv method have argued that individuals apply noneconomic motives in responding to cv questions implying that elicited values are not valid measures of the economic benefit of environmental improvement this study examines the role of such motives by using measures of attitude and motive strength to interpret willingness to pay wtp values for a set of nested environmental goods with potential use and nonuse benefits motivational structure is found to be more complex than suggested by the simple distinction between valid economic theoretic and noneconomic motives social motivations possibly associated with the benefit of contributing to a public good rather than the benefits of the good itself are potentially relevant to the wtp decision but do not give rise to separable values the strength of perceived personal responsibility for provision of the good is significantly associated with wtp but also with the theoretically desirable property of enhanced scope sensitivity wtp is not found to be associated with the extent to which the individual feels under some general moral obligation to contribute to good causes motives arising from ethical concerns for the environment and altruism are also potentially relevant to wtp but are closely related to underlying motives associated with existence and personal use values respectively it is suggested that the cv debate should be informed by further empirical investigation of the extent to which motives for wtp can be treated as separable

bequest values for marine resources how important for indigenous communities in less developed economies communities owning and living on ancestral land tend to have a strong sense of stewardship over the land and its resources which may translate into an economic value to present generations of being able to pass on ancestral lands to future generations i e bequest value this study estimates bequest values to local users of a traditional fishing ground on the coral coast of fiji using a contingent valuation approach using monetary as well as time based contributions bequest values are estimated at between fj 1 25 1 41 us 0 64 0 73 per individual per week or fj 183 90 us 106 91 per household per year this represents a significant proportion of stated average household expenditure comparable to spending on durable household goods and clothes and footwear these results suggest that low income groups may have significant bequest values which should be accounted for in developing economy valuation studies

ordering effects in nested top down and bottom up contingent valuation designs abstract within a contingent valuation cv survey ordering effects are defined where responses to a given question vary in a theoretically unanticipated manner according to the positioning of that question relative to others in the survey instrument this paper employs a split sample cv design to investigate the potential for such ordering effects upon stated willingness to pay for nested goods in one top down design values are first elicited for protecting the whole of an endangered area after which values for a part sub area are elicited a second bottom up treatment reverses the order of valuation tasks with the part scheme valued prior to the whole results show that whole and part valuation responses are logically ordered and determined by a consistent set of factors irrespective of question order however variance to question order was observed in both the part and whole valuations the correspondence of these results to standard and non standard preference theories is explored and the difficulties and practical issues concerning valuing nested goods are highlighted

the welfare cost of uncertainty in policy outcomes this paper proposes a simple index of the welfare significance of uncertainty in the public goods resulting as policy outcomes our measure is the ex ante compensation an individual would require to accept an uncertain level of service compared to receiving the expected value of the distribution of possible values for that service our compensation measure is a function of the coefficient of relative risk aversion the variance in the measure of environmental service associated with policy and relevant for the individual and a set of conventional parameters that describe the properties of nonmarket benefit measures under conditions of certainty we would expect that the inverse virtual price elasticity of the for the environmental service and the square of the coefficient of relative variation are the primary factors influencing the size of our compensation index this abstract was borrowed from another version of this item

the spatial mismatch hypothesis what has the evidence shown this paper reviews 20 years worth of empirical evidence on the spatial mismatch hypothesis after briefly surveying the relevant models from urban and labour economics and recent trends in employment and population suburbanisation the empirical evidence on spatial effects is examined this literature includes evidence on the effects of residential segregation residential suburbanisation and employment suburbanisation and direct measures of access such as travel times the most recent evidence suggests that spatial mismatch is relevant for explaining black white employment differences though the magnitudes of these effects remain unclear

relating environmental attitudes and contingent values how robust are methods for identifying preference heterogeneity we assess the importance and robustness of cluster analysis and latent class analysis as methods to account for unobserved heterogeneity we provide a critique and comparison of both methods in the context of measuring environmental attitudes and a contingent valuation study involving endangered species we find strong evidence of robustness for these methods group characterization and assignment of individuals to groups are similar between methods and willingness to pay estimates are consistent in addition there are significant differences in willingness to pay across environmental attitudinal groups and we find that accounting for unobservable heterogeneity provides a significantly better fitting model

multiple attribute decision analysis for ecosystem management abstract implementation of an ecosystem approach to natural resource management requires evaluation of a broad array of ecological services in a multidimensional community based watershed approach that empowers people to make informed management decisions conventional economic approaches that assign values to ecological services contingent valuation or that evaluate the efficiency of preserving and restoring those services cost benefit analysis are quite limited for this purpose in addition to the methodological difficulties encountered in applying contingent valuation and cost benefit analysis several problems occur when nonmarket values of ecological services are estimated independently of ecosystem planning and management multiple attribute decision making madm is an alternative conceptual framework for evaluating and selecting land and water resource management systems lwrms advantages of madm are that it facilitates community based collaborative decision making avoids some of the ethical theoretical and practical shortcomings of conventional economic approaches does not require assigning monetary values to ecological services allows consideration of multiple attributes and is not culturally biased the madm model described in this paper explains how a property manager selects the most preferred lwrms for a property based on their multiple stochastic attributes application of the model requires determination of the technically feasible lwrms for a property and specification of the socially acceptable ranges of attributes this information is combined with economic biophysical simulations to derive the efficient combination of attributes and lwrms for a property the property manager then selects the most preferred combination of attributes from the efficient combinations of attributes for a property using utility maximization surrogate worth tradeoff free iterative search analytical hierarchy process aspiration reservation based decision support system or stochastic dominance a watershed alliance can evaluate the sustainability of the most preferred lwrms for properties in a watershed based on a weak or strong sustainability criterion if the alliance determines that the most preferred lwrms are not sustainable then an index of attributes is used to evaluate the cost effectiveness of alternative public policies for stimulating the adoption of more sustainable lwrms

on the theory of the firm underlying empirical models of aggregate price behavior recent empirical work on aggregate and industrial price behavior has been conducted within the framework of a static neo classical theory of price formation 2 the purpose of this paper is to propose a more general theoretical framework for analyzing price behavior the proposed framework is neo classical in its basic characteristics but unlike the recent literature it is based on a dynamic theory of firm behavior in which decisions on price inventories and the capital stock are integrated to serve as a basis for comparison with the model developed here it is useful to state briefly the main propositions of the static neo classical model the model presumes that the typical firm behaves as if it were a simple monopolist that faces competitive factor input markets and sets its price so as to maximize current profits assuming a log linear demand function and production function the model yields the result that the firm s long run optimal price policy in general is

credit constraints farm characteristics and the farm economy differential impacts on feeder cattle and beef cow inventories a recurrent topic in the macroeconomic literature is the financial accelerator the notion that informational asymmetries introduce inefficiencies to financial markets which amplify and propagate the effects of real or monetary shocks with the purpose of finding empirical evidence that is consistent with a financial accelerator operating in the cattle sector inventory investment models are estimated with an appended cash flow variable the inclusion of cash flow is motivated by the notion that investment by credit constrained farms should be sensitive to movements in internal funds results are consistent with the financial accelerator operating in the feeder cattle but not in the cow calf sector

more laboratory evidence on the disparity between willingness to pay and compensation demanded abstract recent experimental work showing a disparity between willingness to pay for and compensation demanded to give up lottery tickets is contrary to economists ideas about rationality presented here are the results of experiments in which subjects participate in second price auctions to indicate willingness to pay and compensation demanded for lottery tickets that have fixed odds of winning or losing money when the auction institution used has truthful revelation of preferences as the dominant strategy and that strategy is announced to subjects the difference between the measures of value decreases significantly the within subject comparison design provides a more discriminating measure of behavior than between subject comparison designs used previously

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

imprecise preferences and survey design in contingent valuation during recent years the contingent valuation cv method has been widely used to value non marketed goods and services we present the results of a cv study of the value of road safety we find that stated preferences for road safety exhibit considerable imprecision appear subject to various systematic biases and are insensitive to variations in the quantity and quality of the safety improvements concerned one broad implication of these findings may be that for an important class of goods of which safety is one example standard assumptions about the structure of people s preferences may be much too strong a more specific implication concerning the design and conduct of cv surveys is that the noaa panel s widely cited blueprint for good cv practice may rely far too heavily on assumptions about the precision and sensitivity of people s preferences

valuing environmental quality weak complementarity with sets of goods in practice it is frequently impossible to identify a single good which is a weak complement to an environmental amenity for which welfare measures are desired however a set of goods exhibiting this property sometimes exists e g water related recreational activities when the nonmarket good to be valued is water quality a set of weak complements is defined and implications for welfare measurement presented the proper welfare measure now involves evaluation of a line integral and simple additions of areas under demand curves will not always be correct however under certain econometric circumstances approximate welfare measures can be obtained from estimated functions

test retest reliability of the contingent valuation method a comparison of general population and visitor responses the reliability of the contingent valuation method is evaluated by resurveying the same general households and visitors nine months after their original survey test retest correlations on willingness to pay are statistically significant and ranged from 422 for the general population sample to 782 for the visitor sample using a paired t test there was no statistical difference between an individual s first and second reported willingness to pay chow tests comparing the original and resurvey willingness to pay functions showed no statistical difference at the 01 level reported willingness to pay is reasonably stable over the time period surveyed

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

the importance of ethics in environmental economics with a focus on existence values the importance of ethics and fundamental value judgments in environmental economics is high lighted by discussing the controversial concept of existence values the social value depends crucially on the social objective which is not necessarily self evident e g since some individuals tend to value nature intrinsically it is shown that the motives behind willingness to pay figures matter for the social value and the conventional view that people respond to cv questions solely in order to maximize their own utility or well being is questioned the importance of being explicit about value judgments is emphasized and it is argued that environmental economics should consider non conventional assumptions which take the social context into account to a larger degree

measuring the existence value of wildlife what do cvm estimates really show two research programs are brought together to contribute to the growing body of work on alternatives to standard welfare based approaches to environmental valuation and policy the first is the theoretical literature undermining the new welfare

limits to substitution and irreversibility in production and consumption a neoclassical interpretation of ecological economics abstract there are many methodological approaches within ecological economics one of the principal modes of analysis is a modified version of the standard neoclassical model this paper examines the parallels which emerge between the ideas of some ecological economists concerning production and the ideas of others concerning consumption when these ideas are interpreted in the neoclassical paradigm it is well known that ecological economics is characterized by arguments concerning limits to substitution between inputs energy natural capital etc vs manufactured capital labor etc in production and the implications these have for sustainability however various authors have also expressed concerns regarding limits to substitution in consumption either between environmental assets and other goods or between basic needs commodities and other goods though the specific reasons for non substitution are different in the production and consumption cases the underlying theme is that individual commodities and other inputs have unique physical or other properties which make them poor substitutes ideas about irreversibility in production and economic development are also prominent in ecological economics likewise many authors have argued for similar irreversibilities in consumption behavior in analogy to the term technological change i coin the term preferential change to describe these phenomena the linking themes in this case are that the economy environment system is evolutionary in character and that external effects intended and unintended consequences of actions or processes imposed on other parties or resources are all pervasive