Overcompliance and Voluntary Agreements

Voluntary agreements with industry offer many examplesof overcompliance with respect to environmentalstandards. Such phenomena seem to be irrational butappear less surprising considering firms' strategiesare aimed to internalise environmental quality. Wemodel the choice of the environmental quality ofproducts in a one-shot game between a monopolist andconsumers, to show the existence of inefficientequilibria where quality is low because of moralhazard. The firm can, however, change its' equilibriumstrategy in a repeated but finite game, in order tobuild an environmental reputation if we suppose thatconsumers' information is not only imperfect withregard to quality, but also incomplete with respect toany environmental constraint that may affect thebehaviour of firms (like the threat either of astricter regulation or of potential entry). In atwo-period model, we show the existence of a perfectBayesian equilibrium in mixed strategies where thefirm can revert to the production of green products inorder to influence consumers' beliefs and acquire anenvironmentally friendly reputation. Due to thepeculiarity of environmental information (greenproducts are credence goods), we claim that anexplicit agreement is also necessary in order toestablish monitoring and controlling procedures toverify the performance of firms. These procedures canexplain per se the diffusion of voluntary agreementsthat are nevertheless self-enforcing because of thereputation effect.     

A signaling model of environmental overcompliance

We present a theory of unilateral regulatory overcompliance as a signaling device. Firms that have a competitive advantage in the use of a cleaner but more costly technology overcomply in order to signal to an imperfectly informed, benevolent government that compliance costs are low, thereby triggering tougher regulation. We identify the conditions under which such an overcompliance signaling equilibrium arises, showing that there may be over-overcompliance in that firms may overcomply even when tougher regulation is not socially desirable. We also discuss the differential implications of the signaling theory as compared to other theories of unilateral regulatory overcompliance.     

Existence Value and the Contingent Valuation Method

People express concern about the possible extinction of animal species which they will never see, about damage to wilderness areas they will never visit, and so on. Such concerns are often interpreted by economists in terms of 'existence' or 'passive use' values. Three views have been proposed regarding the appropriate way of dealing with existence values in benefit-cost analysis. First, the existence values and concerns about environmental preservation that are not related to use may be disregarded. Second, concerns about environmental preservation may be taken into account, but not interpreted as existence values or evaluated in monetary terms. Third, the benefit-cost analysis may be modified to incorporate monetary estimates of existence values. Advocates of the third approach have developed a range of techniques for eliciting existence values, collectively referred to as the contingent valuation method. In this paper, the concept of existence value and the techniques of contingent valuation are surveyed, with the aim or providing a basis for comparisons of the three approaches described above.     

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.     

Adaptation and Mitigation in Long-term Climate Policy

The paper analytically explores the optimal allocation of investments into mitigation and environmental adaptation against climate change damages at a macroeconomic level. The economic-environmental model is formulated as a social planner problem where adaptation and abatement investments are separate decision variables. The existence of a unique steady state is proven. A comparative static analysis of optimal investments leads to essential implications for associated long-term environmental policies. It is shown that the optimal policy mix between adaptation and mitigation is lower for countries with higher economic efficiency for all applicable parameter ranges. Data calibration and numerical simulations are provided to estimate practical validity of theoretical outcomes.     

The behaviour of expected short-term real interest rates in the UK

The existence of persistent technical inefficiency offers the opportunity for a ‘free lunch’ not typically implied by the neoclassical theory of the firm. When external effects are related to the use of particular inputs, reduction of persistent technically inefficient levels of input use represents a means of reducing external impacts. An important example is found in agriculture where substantial environmental impacts are generated by particular inputs. Within this context, this paper considers the usefulness of data envelopment analysis (DEA) for estimation of potential input reductions and assessment of potential reductions of environmental impacts of agricultural inputs. An application for French cereal production provides estimates that indicate that substantial potential exists for reduction of input use and environmental impacts.     

Cap and trade policies in the presence of monopoly and distortionary taxation

We extend an analytical general equilibrium model of environmental policy with pre-existing labor tax distortions to include pre-existing monopoly power as well. We show that the existence of monopoly power has two offsetting effects on welfare. First, the environmental policy reduces monopoly profits, and the negative effect on income increases labor supply in a way that partially offsets the pre-existing labor supply distortion. Second, environmental policy raises prices, so interaction with the pre-existing monopoly distortion further exacerbates the labor supply distortion. This second effect is larger, for reasonable parameter values, so the existence of monopoly reduces the welfare gain (or increases the loss) from environmental restrictions.     

Environmental policy and long-term welfare in a tourism economy

A dynamic general equilibrium model of a small open economy specialized in producing tourism services is presented. The tourism package is a bundle of attributes provided by firms, the government and the natural environment. Investment in accommodation increases the number of visitors but also congests public goods and reduces environmental quality. The model is used to determine the conditions for the existence of a long-term double dividend. These conditions depend on both the initial level of environmental quality and the responsiveness of the tourism price to marginal changes in environmental and accommodation quality and congestion of public goods. Support from the Balearic Islands Government (PRIB-2004-10142) and helpful comments from anonymous referees are gratefully thanked.     

A matter of opinion—How ecological and neoclassical environmental economists and think about sustainability and economics

The differing paradigms of ecological and neoclassical environmental economics have been described in various articles and books and are also embedded in different professional associations. However, we cannot take for granted that the paradigm debates described in the literature are actually mirrored in exactly the same way in the perceptions and opinions of researchers looking at sustainability from an economic perspective. This paper presents empirical results from a German case study on how economists and others involved in sustainability research from different schools of thought think about the issues of sustainability and economics, how they group around these issues, how they feel about the current scientific divide, and what they expect to be future topics of sustainability research.We analyze the data using cluster analysis. Based on a literature survey, we generated forty sustainability economics-related statements and asked 196 sustainability researchers about their degree of agreement or disagreement with these statements. In evaluating our survey results, we discuss to what extent the clusters that we identified do—or do not—represent the two schools of thought of ecological and neoclassical environmental economics. We also propose some fields of research that can help to bridge the gaps amongst sustainability economics researchers while clearly marking others that are more suitable for a scientific ‘competition of ideas’. Key results of the study are: We identify two primary scientific clusters, one clearly confirming the existence of the ecological-economics school of thought, and the other largely capturing the neoclassical environmental view. Yet, there are some surprising exceptions: Both schools of thought share a conceptual definition of sustainability that is integrative in considering ecological, societal and economic dimensions (‘three pillar concept’) and is geared at preserving the development potentials of society. We also find a shared critique of ‘pure economic growth’ strategies in our sample. These shared opinions may provide bridging concepts between the schools of thought. Also both clusters agree with respect to a wide range of future fields of sustainability economics research. Yet, the research agenda of the ecological-economics cluster contains a large number of additional topics, primarily related to social, distributional and evolutionary aspects of sustainable development. Strong divides between the clusters that seem to be more suitable for a scientific competition of ideas are primarily related to the question of how to achieve sustainability, including appropriate environmental policies.     

Environmentally aware households

The rising environmental awareness induces a changing landscape for policymakers and real economic prospects. We examine the properties of a general equilibrium model with endogenous household preferences (for labor, consumption, and environmental quality) and a negative environmental externality. The endogeneity of labor creates an additional channel of substitution between environmental quality and labor, besides the channel of substitution between environmental quality and consumption. We show that a key requirement for improved output following a positive shock in the weight of environmental quality (household environmental awareness) is that environmental awareness trades off the weight on labor and not the weight on consumption. An interesting feature of the model is that the existence of the environmental externality gives a non-zero capital tax in the long run.     

Choosing the right instrument

This paper analyses the optimal choice of second-best optimal environmental policies. Using a partial equilibrium model, the paper first reconfirms the well-known result that the existence of a double dividend (in its weak definition) favours environmental policy instruments which maximise tax revenues for a given improvement in environmental quality. Additional revenues can be used to reduce the distortion of existing taxes such as taxes on labour and capital income. Without uncertainty, environmental taxes and auctioned permits are equally appropriate. In the presence of uncertainty, however, the optimal choice of taxes or tradable permits depends on the relative magnitudes of the marginal environmental damage and the marginal benefit from consuming a polluting good. In the second part, the paper, therefore, analyses how the revenue capacity affects the optimal choice of environmental policy instruments in the presence of uncertainty. The paper shows that the first-best choice rule between price and quantity regulation (Weitzman, 1974) remains valid in a second-best world with distortionary taxation.     

Federal transfers, environmental policy and economic growth

We study the effects of commonly used cross-country transfer programs on uncoordinated national environmental policies, economic growth and natural resources in a federal economy. Natural resources are a federation-wide public good. In each member country, production degrades the environment, but clean-up policy can improve it. Clean-up policy is financed by taxes on polluting firms’ output and cross-country redistributive transfers. We solve for a symmetric Nash equilibrium among national governments. Transfer policies that lead to higher pollution taxes make existence harder, and are harmful not only to growth but also to the environment. The best way to improve environmental quality is to implement a taxation system that stimulates growth and broadens tax bases to finance national clean-up policies.     

It is not easy being a Green party: Green politics as a normal good

An extensive body of literature shows that voters often credit or blame ruling political parties for economic successes and failures, respectively. This paper presents a related, but new possibility: whether local economic conditions impact Green party electoral outcomes. According to the environmental Kuznets curve, high-income countries will see decreased environmental degradation as they become wealthier, but it is yet to be seen whether this relationship is carried over to environmentally friendly political parties. Using a panel data set that includes over 250 elections from 26 European countries, we find that elections held during times of economic growth increase the vote share that Green parties win. This effect is especially robust for national elections, as opposed to elections for the European Parliament. The magnitudes are large enough to potentially alter the number of seats Green parties have in national legislatures. This provides evidence that Green parties are most likely to gain seats when the economy is growing, and support for the existence of an environmental Kuznets curve.     

The Cultural Contradictions of Capitalism

Darwin uses natural selection in two different senses. Struggle for existence refers to rivalry; survival of the fittest refers to surviving environmental changes. The mainstream vision of economic harmony requires casting natural selection as survival of the fittest. There is no struggle, no conflict. Mainstream economics depicts the selector in the evolutionary game as the firm itself. The mainstream vision requires banishing corporate power and the technological basis of power. For Veblen, corporate power is central. The existence of power implies that among firms, selection assumes the form of struggle. Evolutionary game theory breaks with the mainstream vision; firms are rivals. Evolutionary game theory, however, lacks the "stories" that provide a mapping between theory and reality, something institutionalists are well-positioned to provide. Stories are necessary for understanding corporate power, its origins, its use, and its limitations.     

Is the environmental performance of industrialized countries converging? A ‘SURE’ approach to testing for convergence

In this paper, we test for convergence in the environmental performance of a sample of OECD countries, with data ranging from 1971 to 2002. First, we use Data Envelopment Analysis (DEA) to compute two environmental performance indicators (EPIs) in the production theory framework. Second, we propose the use of a sequential multivariate approach to test for convergence in environmental performance. These tests allow us to reconcile the time series literature with the cross-sectional dimension, which is basic when testing for convergence in regional blocs. The SURE technique is used, which allows for the existence of correlations across the series without imposing a common speed of mean reversion. The empirical results show that the group of countries as a whole, as well as the majority of countries considered on an individual basis (results for some countries vary between EPIs), are catching-up with Switzerland (the benchmark country).     

基于数据包络分析方法的项目环境效率评价

对项目环境效率进行了研究,讨论了项目环境效率评价方法,在项目环境残余物可自由处理和弱自由处理等不同情况下,构建了评价项目环境效率数据包络分析(DEA)模型,最后给出了一个计算例子。     

Environmental degradation as engine of undesirable economic growth via self-protection consumption choices

We analyze growth dynamics in an economy where the well-being of economic agents depends on three goods: leisure, a free access environmental good and a private good that can be consumed as a substitute for the environmental resource. The processes of production and consumption of the private good by each agent impose negative externalities on other agents through the depletion of the environmental good.This paper shows that, in such context, the existence of private substitutes for environmental goods may fuel an undesirable economic growth process. This process is driven by the continuous increase in agents' needs for private consumption generated by the progressive reduction in free consumption of the environmental good.     

环境规制与污染避难所效应*——基于中国省际数据的面板门槛回归分析

本文在扩展环境库兹涅茨曲线（EKC）方程的基础上,利用2000—2013年间中国30个省、自治区和直辖市的工业废水、工业二氧化硫、工业烟（粉）尘排放量构建环境污染强度、环境规制强度指标,采用面板门槛回归方法,分析环境规制强度对中国各地区环境污染强度的影响以及环境污染避难所假说在中国各地区是否存在。环境规制强度为门槛变量的实证结果表明加强环境规制强度能够显著地降低环境污染强度,中国的外商直接投资和出口贸易所存在的污染避难所效应除了与不同的污染排放物有关以外,还与实行不同环境规制强度的地区有关,且这两者之间并不存在单一的一致关系。本文还发现中国各地区人均GDP与环境污染之间存在U型关系,虽然目前仍有部分地区的环境污染强度会随地区人均GDP水平的提高而降低,但多数地区处于拐点右侧,因此对环境污染物的强化治理依旧刻不容缓。     

Tax Interaction Effects,Environmental Regulation,and “Rule of Thumb” Adjustments to Social Cost

Preexisting distortions in factor markets complicate the estimation of the social welfare effects of regulatory interventions. The existence of these tax interaction effects (TIEs) suggests that general equilibrium (GE) approaches should be used to evaluate regulatory policies. However, formal GE analysis is not always feasible for the numerous environmental regulations proposed by federal, state, and local agencies. The question addressed in this paper is whether an empirically based rule of thumb upward adjustment factor is appropriate to properly scale social cost estimates in environmental policy. We argue that such rule of thumb adjustments are significantly less reliable than estimates based on a detailed general equilibrium analysis because of the uncertainty about both the magnitude and sign of the social cost distortion. In addition to addressing this question, the paper gives an overview of TIEs and their relevance to environmental policy.     

论中国农村环境管理体系的结构真空

农村环境问题的严峻性迫切要求探讨适合的农村环境管理模式。借鉴社会网络理论中的结构洞的概念,指出既有环境管理体系在乡镇一级存在着结构洞,而位于结构洞中的乡镇政府因为人力财力的不足产生结构真空,致使环境信息传递无效,继而导致既有环境管理体系在农村地区使用的低效。要完善农村环境管理体系,需要加强乡镇政府人力财力的配备,完善农村环境信息自下而上申报的体系,以保障环境信息传递的通畅。