Showing papers in "Environmental and Resource Economics in 2009"

The Use (and Abuse) of Meta-Analysis in Environmental and Natural Resource Economics: An Assessment

Abstract: Motivated by the 2006 report of a Work Group appointed by the Environmental Protection Agency (EPA), this paper examines the present state of meta-analysis in environmental economics and offers recommendations for its future use. To this end we summarize and assess 140 meta-analyses from 125 published and unpublished studies, covering 17 topical categories in environmental and resource economics. First, we provide several generic meta-analysis models as reference points and discuss major estimation issues. Five econometric issues are identified as part of a complete analysis: (1) sample selection criteria; (2) basic data summary; (3) primary data heterogeneity; (4) heteroskedasticity; and (5) non-independence of multiple observations from primary studies. Second, a tabular summary is presented for the 140 meta-analyses with respect to estimation methods. Third, a narrative summary is presented for 19 meta-analyses, including the three value-of-statistical-life studies examined by the EPA Work Group and one analysis from each of 16 other categories. Fourth, we offer a set of “best practice” guidelines for future meta-analyses in this and other areas of economics. Last, the paper comments on the use of meta-analytic methods for benefit transfers of environmental values.

On the Robustness of Robustness Checks of the Environmental Kuznets Curve Hypothesis

Abstract: Since its first inception in the debate on the relationship between environment and growth in 1992, the Environmental Kuznets Curve hypothesis (EKC hereafter) has been subject of continuous and intense scrutiny. The most recent line of investigation criticizes the EKC hypothesis on more fundamental grounds, in that it stresses the lack of sufficient statistical testing of the empirical relationship and questions the very existence of the notion of EKC. Attention is in particular drawn on the stationarity properties of the series involved—per capita emissions or concentrations and per capita GDP—and, in case of presence of unit roots, on the cointegration property that must be present for the EKC to be a well-defined concept. Only at that point can the researcher ask whether the long-run relationship exhibits an inverted-U pattern. On the basis of panel integration and cointegration tests for sulfur, Stern (2004) and Perman and Stern (1999, 2003) have presented evidence and forcefully stated that the EKC hypothesis does not exist. In this paper we ask whether similar strong conclusions can be arrived at when carrying out tests of system fractional integration and cointegration. As an example we use the controversial case of carbon dioxide emissions. The results show that more EKCs come back into life relative to traditional integration/cointegration tests. However, we confirm that the EKC hypothesis remains a fragile concept.

Agglomeration Effects in Foreign Direct Investment and the Pollution Haven Hypothesis

Abstract: Does environmental regulation impair international competitiveness of pollution-intensive industries to the extent that they relocate to countries with less stringent regulation, turning those countries into “pollution havens”? We test this hypothesis using panel data on outward foreign direct investment (FDI) flows of various industries in the German manufacturing sector and account for several econometric issues that have been ignored in previous studies. Most importantly, we demonstrate that externalities associated with FDI agglomeration can bias estimates away from finding a pollution haven effect if omitted from the analysis. We include the stock of inward FDI as a proxy for agglomeration and employ a GMM estimator to control for endogenous time-varying determinants of FDI flows. Furthermore, we propose a difference estimator based on the least polluting industry to break the possible correlation between environmental regulatory stringency and unobservable attributes of FDI recipients in the cross-section. When accounting for these issues we find robust evidence of a pollution haven effect for the chemical industry.

Choosing between internet and mail survey modes for choice experiment surveys considering non-market goods.

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

Club Convergence in Carbon Dioxide Emissions

Abstract: We examine convergence in carbon dioxide emissions among 128 countries for the period 1960–2003 by means of a new methodology introduced by Phillips and Sul (Econometrica 75(6):1771–1855, 2007a). Contrary to previous studies, our approach allows us to examine for evidence of club convergence, i.e. identify groups of countries that converge to different equilibria. Our results suggest convergence in per capita CO2 emissions among all the countries under scrutiny in the early years of our sample. However, there seem to be two separate convergence clubs in the recent era that converge to different steady states. Interestingly, we also find evidence of transitioning between the two convergence clubs suggesting either a slow convergence between the two clubs or a tendency for some countries to move from one convergence club to the other.

Are There Income Effects on Global Willingness to Pay for Biodiversity Conservation

Abstract: This paper is concerned with the empirical relationship between biodiversity conservation values and income. We use random effects panel models to examine the effects of income, and then GDP per capita, on willingness to pay for habitat and biodiversity conservation. In a meta-analysis, 145 Willingness To Pay estimates for biodiversity conservation where existence value plays a major role were collected from 46 contingent valuation studies across six continents. Other effects included in the meta-analysis were the study year; habitat type; continent; scope as presented to respondents; whether WTP bids were for preventing a deterioration or gaining an improvement in conservation, whether a specific species or specific habitat was protected; whether the questionnaire used a dichotomous choice or an open-ended format; distribution format; and the choice of payment vehicle. GDP per capita seemed to perform as well as an explanatory variable as respondent’s mean stated income, indicating that it is wealth in society as a whole which determines variations in WTP. Even if large variation, our main conclusion is, that the demand for biodiversity conservation rises with a nation’s wealth, but the income elasticity of willingness to pay is less than one.

The Welfare Economic Theory of Green National Accounts

Abstract: This paper takes a critical look at the literature on green national accounts. The problem studied is to find a linear index of economic variables that responds to perturbations in the same direction as social well-being. The thesis of a large literature, that net national product (which is a flow) is that index in closed economies, is shown in some interpretations to be simply false and in others to suffer from deep estimation problems. It is argued that capital depreciation using shadow prices should certainly be included in national accounts, but that the right welfare index is a comprehensive measure of wealth, defined as the shadow value of an economy's stock of all capital assets. It is shown that comprehensive wealth is usable as a criterion for policy evaluation as well as for determining sustainable economic development.

Testing the Effectiveness of Certainty Scales, Cheap Talk, and Dissonance-Minimization in Reducing Hypothetical Bias in Contingent Valuation Studies

Abstract: Stated preference methods such as contingent valuation and choice modeling are subject to various biases that may lead to differences between actual and hypothetical willingness to pay. Cheap talk, follow-up certainty scales, and dissonance minimization are three techniques for reducing this hypothetical bias. Cheap talk and certainty scales have received considerable attention in the literature, but dissonance minimization has not previously been experimentally tested. Using a four-way split sample design involving over 600 subjects, results from an actual referendum on provision of a quasi-public good were compared with three similar but contingent referenda employing the three bias-reducing techniques. Hypothetical bias was again present. Certainty scales, when properly calibrated, and dissonance minimization were found to be most effective in reducing the bias.

Creative Disasters? Flooding Effects on Capital, Labour and Productivity Within European Firms

Abstract: This paper examines the impact of floods on the firms’ capital accumulation, employment growth and productivity by using a difference-in-difference (DID) approach and considering the firms’ asset structure. We find evidence that, in the short run, companies in regions hit by a flood show on average higher growth of total assets and employment than firms in regions unaffected by flooding. The positive effect prevails for companies with larger shares of intangible assets. Regarding the firms’ productivity a negative flood effect is observable which declines with an increasing share of intangible assets.

Origins and Development of the EU ETS

Abstract: The successful creation of the European Union Emissions Trading Scheme (EU ETS) was not inevitable. Countries such as Canada and Japan which might be thought to have a less complex and more cohesive cultural and institutional context failed to do so. Europe succeeded for a number of reasons: with a Single Market for the economy, the logic of a single market for environment is inexorable; the European Commission—which had failed in its earlier efforts to introduce a carbon energy tax—made the case for trading with great skill and persistence, on the basis of qualified majority voting, which meant no country had a veto; the UK and Denmark initiated their own national schemes, and there was a serious risk of balkanising the market with up to 27 different schemes, with the losses of scale and scope this would entail; meeting the Union’s Kyoto commitments required a substantive pan European response, and EU ETS was the most credible and effective way of doing so. The European Parliament and Environmental Non Governmental Organisations played a constructive role, pushing for more auctioning of allowances and less of them, allocated centrally. Free allocation managed by Member States (MS) was a necessary condition to achieve the support needed, so they failed to achieve these objectives in the initial phase, but they characterize the Commission’s proposals post 2012.

Adoption of Pollution Prevention Techniques: The Role of Management Systems and Regulatory Pressures

Abstract: This paper investigates the extent to which firm level technological change that reduces unregulated emissions is driven by regulatory pressures, and firms’ technological and organizational capabilities. Using a treatment effects model with panel data for a sample of S&P 500 firms over the period 1994–1996, we find that organizational change in the form of Total Quality Environmental Management leads firms to adopt pollution prevention practices, after controlling for the effects of various regulatory pressures and firm-specific characteristics. We find that the threat of anticipated regulations and the presence of ‘complementary assets’ is important for creating the incentives and an internal capacity to undertake incremental adoption of pollution prevention techniques.

Rule of Law and the Resource Curse: Abundance Versus Intensity

Abstract: We examine the ‘resource curse’ using new data on historic resource stocks and an improved econometric methodology. The paper distinguishes between resource abundance (stocks) and extractive intensity (flows), focusing on relationships between resources and rule of law. Previously unavailable information on past resource stocks is estimated. We find that economically large initial natural resource stocks are associated with subsequent lower levels of rule of law and do not directly affect growth, while raw resource exports do not have a significant effect on rule of law when stocks are included in the analysis but do affect average growth rates. Sample size is maximized through the use of an EMis (expectation maximization with importance sampling) algorithm to replace missing data, minimizing the bias and inefficiency associated with listwise deletion, which commonly eliminates half or more of the available data in this setting.

Municipal Waste Kuznets Curves: Evidence on Socio-Economic Drivers and Policy Effectiveness from the EU

Abstract: Waste generation and waste disposal are becoming increasingly prominent in the environmental arena, from a policy perspective and in the context of delinking analysis. In general, waste generation is still increasing proportionally with income, and economic and environmental costs associated to landfilling are also increasing. This paper provides a comprehensive analysis of waste generation, incineration and landfill dynamics based on panel data for the EU25, to assess the effects of different drivers (economic, structural, policy) and the eventual differences between Western and Eastern EU countries. We show that for waste generation there is still no Waste Kuznets Curve (WKC) trend, although elasticity to income drivers appears lower than in the past. Landfill and other policy effects do not seem to provide backward incentives for waste prevention, and in terms of landfill and incineration, as expected, they are respectively decreasing and increasing, with policy acting as a strong driver. Eastern countries appear to be performing generally quite well, thus benefiting from EU membership and related policies in terms of environmental performance. We can conclude that although absolute delinking is far from being achieved for waste generation, there are some first positive signs of an increasing relative delinking for waste generation and robust landfill diversion, and varying evidence of a significant role of the EU waste policies implemented in the late 1990s and early 2000s. Our evidence suggests that if while landfill diversion is currently associated to a delinking partly explained by EU policies, waste prevention must be the next objective of waste regulation efforts.

The Value Relevance of Financial and Non-Financial Environmental Reporting

Abstract: Previous literature on the analysis of the relationship between environmental reporting and financial performance shows mixed results, due to the use of a broad variety of research methods and the lack of objective environmental performance measures. This paper adopts a new approach to explore this relationship, analysing the value relevance of different types of financial and non-financial environmental disclosures. Furthermore, the analysis includes two different types of environmental reporting: compulsory and voluntary. This study examines a sample of listed Spanish companies, using a regression model based on the Ohlson equity-valuation framework. Results suggest a significant market valuation of financial environmental disclosures (investments, costs and contingencies), but not of non-financial. Furthermore, our evidence corroborates the increase of the value relevance of compulsory environmental information.

Optimal timing of climate change policy: interaction between carbon taxes and innovation externalities.

Abstract: This paper addresses the impact of endogenous technology through research and development (R&D) on the timing of climate change policy. We develop a model with a stock pollutant (carbon dioxide) and abatement technological change through R&D, and we use the model to study the interaction between carbon taxes and innovation externalities. Our analysis shows that the timing of optimal emission reduction policy strongly depends on the set of policy instruments available. When climate-specific R&D targeting instruments are available, policy has to use these to step up early innovation. When these instruments are not available, policy has to steer innovation through creating demand for emission saving technologies. That is, carbon taxes should be high compared to the Pigouvian levels when the abatement industry is developing. Finally, we calibrate the model in order to explore the magnitude of the theoretical findings within the context of climate change policy.

GIS-Based Hedonic Pricing of Landscape

Abstract: Hedonic prices of landscape are estimated in the urban fringe of Dijon (France) Viewshed and its content as perceived at ground level are analyzed from satellite images supplemented by a digital elevation model Landscape attributes are then fed into econometric models (based on 2,667 house sales) that allows for endogeneity, multicollinearity, and spatial correlations Results show that when in the line of sight, trees and farmland in the immediate vicinity of houses command positive prices and roads negative prices; if out of sight, their prices are markedly lower or insignificant: the view itself matters The layout of features in fragmented landscapes commands positive hedonic prices Landscapes and features in sight but more than 100-300~m away all have insignificant prices

Deriving and Testing Efficient Estimates of WTP Distributions in Destination Choice Models

Abstract: Estimation of welfare measures is often a dominant driver in the empirical literature on nonmarket valuation. To this end, qualitative choice models based on random utility theory have been widely employed in outdoor recreation studies. A frequent goal of applied studies has been the estimation of welfare changes associated with site attribute changes at recreation sites in order to inform regulatory policy and resource management. We review the evolution of the methodology of random utility theory in this field with a focus on taste heterogeneity models and then focus on the recent proposal of specifying utility in the WTP-space (Train K, Weeks M (2005) Discrete choice models in preference space and willing-to-pay space. In: Scarpa R, Alberini A (eds) Applications of simulation methods in environmental and resource economics, chapter 1. Springer, Dordrecht, pp 1–16). Our empirical application is on outdoor alpine recreation data. We emphasize the efficiency and direct testing that using the maximum simulated likelihood estimator affords to practitioners using the WTP-space approach, and illustrate these with examples.

ISO 14001 Environmental Certification: A Sign Valued by the Market?

Abstract: The main purpose of this work is to analyse whether ISO 14001 certification is interpreted by the capital market as a sign of environmental responsibility, modifying long-term efficiency expectations and the profitability of firms. Under competing assumptions that ISO 14001 certification is adopted by firms either proactively or reactively, we test competing hypotheses about how this certification affects the market value of firms. The analysis is based on a sample of 80 environmental certifications of the plant systems or processes of large Spanish firms which traded on the continuous market of the Madrid Stock Exchange from 1996 to 2002. Using event study methodology, we found that ISO 14001 certification has a negative effect on the market value of certain firms. Specifically, the results obtained seem to show that the market negatively views the allocation of resources to ISO 14001 certification in the case of less polluting and less internationalised firms. On the other hand, the results obtained do not suggest clear evidence that the economic impact of ISO 14001 certification is negative for more polluting and more internationalised firms.

Should reference alternatives in pivot design SC surveys be treated differently

Abstract: Analysts are increasingly making use of pivot style Stated Choice (SC) data in the estimation of choice models. These datasets often contain a reference alternative whose attributes remain invariant across replications for the same respondent. This paper presents evidence to suggest that respondents react differently to the attributes of these reference alternatives and those of purely hypothetical alternatives. While some such evidence has been reported in the existing literature, this paper goes further and details a number of different departures from a common treatment of the two types of alternatives, relating both to the observed part of utility and the error term.

Proportionality of Willingness to Pay to Small Changes in Risk: The Impact of Attitudinal Factors in Scope Tests

Abstract: Sensitivity (proportionality) of willingness to pay (WTP) to (small) risk changes is often used as a criterion to test for valid measures of economic preferences In a contingent valuation (CV) study conducted in Austria, 1,005 respondents were asked their WTP for preventing an increase in the risk of being killed in an avalanche of 1/42,500 and 3/42,500 respectively WTP for the higher variation in risk is significantly greater than WTP for the lower risk change We find evidence that those respondents who have had personal experience of avalanches in recent years combine the information about future risk increase—as provided in the survey—with the observed number of fatal avalanche accidents in the past Proportionality of WTP holds if such prior experience is taken into account and if attitudinal factors in scope tests are controlled for

Economic Valuation of Environmental Damages due to the Prestige Oil Spill in Spain

Abstract: This paper presents a parametric and non-parametric analysis of data from a contingent valuation study (CVM) conducted to estimate environmental use and passive use losses due to the Prestige oil spill. This is the first CVM study conducted in Europe after a large oil spill. The CVM survey was implemented using in person interviews. Mean willingness to pay (WTP) values were computed with both, a parametric and non-parametric approach. Parametric WTP estimation indicates that respondents in the sample are willing to pay about 40.51 € per household to avoid a similar future oil spill in Spain. This implies that on average, the Spanish society places a value of the environmental losses caused by the Prestige oil spill around 574 € million. Non-parametric estimates are slightly higher at 58.08 € per household. WTP results are similar to those obtained in the Exxon Valdez study.

Eliciting Willingness to Pay without Bias using Follow-up Certainty Statements: Comparisons between Probably/Definitely and a 10-point Certainty Scale

Abstract: Correction for hypothetical bias using follow up certainty questions often takes one of two forms: (1) two options, “definitely sure” and “probably sure”, or (2) a 10-point scale with 10 very certain. While both have been successful in eliminating hypothetical bias from estimates of WTP by calibrating based on the certainty of yes responses, little is known about the relationship between the two. The purpose of this paper is to compare the two using data from three field experiments in a private good, dichotomous choice format. We compare four types of yes responses that differ in the criterion used to determine if there is sufficient certainty for a hypothetical yes response to be considered a true yes response. We make several comparisons, but focus on determining which values on the 10-point scale give the same estimates of WTP as “definitely sure” hypothetical yeses and real yeses (actual purchases). Values that produce equivalence are near 10 on the certainty scale.

Bequest Values for Marine Resources: How Important for Indigenous Communities in Less-Developed Economies?

Abstract: 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.

Welfare and distribution effects of water pricing policies

Abstract: In this paper, distribution and welfare effects of changes in block price systems are evaluated. A method is discussed to determine, for a Marshallian demand function, equivalent variation in case of a block price system. The method is applied to compare, for the Metropolitan Region of Sao Paulo, alternative pricing policies on the basis of their demand, welfare and distribution effects of changing water prices. Results show that there is a trade off between average welfare and income distribution. A pro-poor price system may result in lower average welfare than a flat price system, but in higher individual welfare for the poor. Moreover, there is a trade off between revenues for the water company and income distribution. Even though pro-poor price systems may not be as good for average welfare as flat price systems, their direct effects on poverty are important. Introducing pro-poor price systems, however, may have financial consequences for the water companies.

The Impact of Climate Change on the Balanced Growth Equivalent: An Application of FUND

Abstract: The Stern Review added balanced growth equivalents (BGE) to the economic climate change research agenda. We first propose rigorous definitions of the BGE for multiple regions and under uncertainty. We show that the change in the BGE is independent of the assumed scenario of per capita income. For comparable welfare economic assumptions as the Stern Review, we calculate lower changes in BGE between a business as usual scenario and one without climate impacts with the model FUND than the Stern Review found with the model PAGE. We find that mitigation policies give even lower changes in BGE and argue that those policy choices should be the focus of the research effort rather than total damage estimates. According to our results, the current carbon tax should be below $55/tC. Sensitivity analyses show that the Stern Review chose parameters that imply high impact estimates. However, for regionally disaggregated welfare functions, we find changes in BGE that are significantly higher than the results from the Stern Review both for total damage as for policy analysis. With regional disaggregation and high risk aversion, we observe fat tails and with that very high welfare losses.

Using Labels to Investigate Scope Effects in Stated Preference Methods

Abstract: Insufficient sensitivity to scope (variations in the scale of the environmental good on offer) remains a major criticism of stated preference methods, and many studies fail a scope test of some sort. Across a range of existing explanations for insensitivity to scope (commodity mis-specification, embedding, warm glows) there seems to exist no clear conclusion on how to deal with the problem. This paper provides an alternative explanation for insufficient sensitivity to scope, based on re-definition of the determinants of value for environmental goods within an attributes-based choice model. In the proposed framework respondents’ Willingness To Pay need depend not only on physical characteristics of a good, but may also depend on the ‘label’ under which the environmental good is ‘sold’ in the hypothetical market. To investigate this problem, a Choice Experiment study of biodiversity was conducted. We find that controlling for the effects of a label—in this case, national park designation—leads to significant increase in the scope sensitivity of welfare measures.

Climate Response Uncertainty and the Benefits of Greenhouse Gas Emissions Reductions

Abstract: Some recent research suggests that uncertainty about the response of the climate system to atmospheric greenhouse gas concentrations can have a disproportionately large influence on benefits estimates for climate change policies, potentially even dominating the effect of the discount rate. In this paper we conduct a series of numerical simulation experiments to investigate the quantitative significance of climate response uncertainty for economic assessments of climate change. First we characterize climate uncertainty by constructing two probability density functions—a Bayesian model-averaged and a Bayesian updated version—based on a combination of uncertainty ranges for climate sensitivity reported in the scientific literature. Next we estimate the willingness to pay of a representative agent for a range of emissions reduction policies using two simplified economic models. Our results illustrate the potential for large risk premiums in benefits estimates as suggested by the recent theoretical work on climate response uncertainty, and they show that the size and even the sign of the risk premium may depend crucially on how the posterior distribution describing the overall climate sensitivity uncertainty is constructed and on the specific shape of the damage function.

Demand for piped and non-piped water supply services: Evidence from Southwest Sri Lanka

Abstract: In many countries water supply is a service that is seriously underpriced, especially for residential consumers. This has led to a call for setting cost recovery policies to ensure that the tariffs charged for water supply cover the full cost of service provision. Identification of factors driving piped and non-piped water demand is a necessary prerequisite for predicting how consumers will react to such price increases. Using cross-sectional data of 1,800 households from Southwest Sri Lanka, we estimate water demand functions for piped and non-piped households using appropriate econometric techniques. The (marginal) price elasticity is estimated at − 0.15 for households exclusively relying on piped water, and at − 0.37 for households using piped water but supplementing their supply with other water sources. The time cost elasticity for households relying on non-piped water only is estimated at − 0.06 on average, but varying across sources. For both piped and non-piped households, we find evidence of substitutability between water from different sources. We discuss the implications of these results in terms of pricing policy.

The Income–Temperature Relationship in a Cross-Section of Countries and its Implications for Predicting the Effects of Global Warming

Abstract: Hotter countries are poorer on average. This paper attempts to separate the historical and contemporaneous components of this income–temperature relationship. Following ideas by Acemoglu et al. (Am Econ Rev 91(5):1369–1401, 2001), we use colonial mortality data to account for the historical role of temperature since colonial mortality was highly correlated with countries’ average temperatures. The remaining income–temperature gradient, after colonial mortality is accounted for, is most likely contemporaneous. This contemporaneous effect can be used to estimate the consequences of global warming. We predict that a 1°C temperature increase across all countries will cause a decrease of 3.8% in world GDP. This prediction is robust across functional forms and an alternative method for separating historical effects.

A Spatial Hedonic Approach to Assess the Impact of Swine Production on Residential Property Values

Abstract: A spatial hedonic model is developed to assess monetary harm of confined animal feeding operations (CAFOs) on property values, taking explicitly into account spatial dependence in property values. Spatial autocorrelation was found in the form of spatial lag dependence, not spatial error dependence. When spatial lag dependence is explicitly taken into account, on average the impact coefficient estimate of a CAFO is reduced by 18%. For example, the impact on the value of the median house ($63,520) 1 mile from a swine facility with 10,000 head fell from − $6,800 to − $5,200, or 23.5%. The magnitude of the spatial autoregressive parameter was about 0.2 for the 1-mile distance band, meaning one-fifth of the house value could be explained by the values of the neighboring houses.