the design of environmental markets what have we learned from experience with cap and trade this article reviews the design of environmental markets for pollution control over the past 30 years and identifies key market design lessons for future applications the focus is on a subset of the cap and trade systems that have been implemented planned or proposed around the world three criteria led us to the selection of systems for review first among the broader class of tradable permit systems our focus is exclusively on cap and trade mechanisms thereby excluding emission reduction credit or offset programmes second among cap and trade mechanisms we examine only those that target pollution abatement and so we do not include applications to natural resource management such as individual transferable quota systems used to regulate fisheries third we focus on the most prominent applications those that are particularly important environmentally economically or both

reprint of price and quantity collars for stabilizing emission allowance prices laboratory experiments on the eu ets market stability reserve abstract we report on laboratory experiments with financially motivated participants comparing alternative proposals for managing the time path of emission allowance prices in the face of random firm specific and market level structural shocks market outcome measures such as social surplus and price variability are improved by the use of a price collar auction reserve price and soft price cap comparable performance enhancements are not observed with the implementation of a quantity collar that adjusts auction quantities in response to privately held inventories of unused allowances in some specifications the quantity collar performed worse than no stabilization policy at all the experiment implemented a specific set of structural elements and extrapolation to other settings should be done with caution nevertheless an examination of the observed behavioral patterns and deviations from optimal behavior suggests that a price collar has an important although perhaps not exclusive role to play in constructing an effective market stability policy

sulfur dioxide control by electric utilities what are the gains from trade title iv of the 1990 clean air act amendments caaa established a market for transferable sulfur dioxide so2 emission allowances among electric utilities this market offers firms facing high marginal abatement costs the opportunity to purchase the right to emit so2 from firms with lower costs and this is expected to yield cost savings compared to a command and control approach to environmental regulation this paper uses econometrically estimated marginal abatement cost functions for power plants affected by title iv of the caaa to evaluate the performance of the so2 allowance market specifically we investigate whether the much heralded fall in the cost of abating so2 compared to original estimates can be attributed to allowance trading we demonstrate that for plants that use low sulfur coal to reduce so2 emissions technical change and the fall in prices of low sulfur coal have lowered marginal abatement cost curves by over 50 percent since 1985 the flexibility to take advantage of these chan

toward a public choice theory of monopoly regulation its many dimensions from the perspective of market economics this new thrust was consolidated in 1976 by s peltzman who developed a formal market model in which regulations were viewed as commodities brokered via political markets in response to bids and counter bids by those who stood to gain or to lose from specific regulation outcomes the subsequent contribution by becker 1983 added insights and institutional flesh to the stigler peltzman embryo confirming regulation as an integral component of mainstream market economics an important implication of such contributions especially those from the chicago perspective is that regulation for the most part confirms resource efficiency within market process that political markets in the absence of entry barriers are just as effective as are competitive commodity markets in achieving economic efficiency defined within a comparative institutions framework nowhere is this complacency more apparent than in the conclusion drawn by becker 1983 from a detailed formal analysis of competition among pressure groups for political influence

policy stringency under the european union emission trading system and its impact on technological change in the energy sector abstract in this study we use patent count data for overall climate change mitigation technologies and for those related to energy production and distribution to evaluate the relationship between the sizable oversupply of european union emissions allowances and a policy shift marked by the transition from phase i to phase ii under the european union emission trading system on the one hand and on green patenting on the other according to our results the expected negative impact of this oversupply on technological change seems to be confirmed thus stakeholders take the actual supply of certificates into account when determining their innovative activity in the same vein they do so with respect to policy changes related to greater stringency which generated a sizeable increase in patenting activity when controlling for other economic factors our results suggest that a critical evaluation of emission caps and allowances distribution must be undertaken

bureau competition and inefficiency abstract this paper evaluates the claim that an increase in bureau competition will improve efficiency in the public supply of services it gives explicit consideration to the property rights characteristics of a public sector market and to the role of legislators as active demanders of bureau output rather than as passive monitors of bureau production the analysis demonstrates that bureau managers prefer nonprice competition to price competition a major prediction of the paper is that greater bureau competition may increase bureau output costs and budgets

the problem of the commons still unsettled after 100 years the problem of the commons is more important to our lives and thus more central to economics than a century ago when katharine coman led off the first issue of the american economic review as the us and other economies have grown the carrying capacity of the planet in regard to natural resources and environmental quality has become a greater concern particularly for commonproperty and open access resources the focus of this article is on some important unsettled problems of the commons within the realm of natural resources there are special challenges associated with renewable resources which are frequently characterized by open access an important example is the degradation of openaccess fisheries critical commons problems are also associated with environmental quality a key contribution of economics has been the development of market based approaches to environmental protection these instruments are key to addressing the ultimate commons problem of the twenty first century global climate change jel q15 q21 q22 q25 q54

the effect of allowance allocations on cap and trade system performance abstractan implication of the coase theorem is that under certain conditions the market equilibrium in a cap and trade system will be cost effective and independent of the initial allocation of tradable rights that is the overall cost of achieving a given aggregate emission reduction will be minimized and the final allocation of permits will be independent of the initial allocation we call this the independence property this property is important because it means that the government can establish the overall pollution reduction goal for a cap and trade system by setting the cap and leaving it up to the legislature to construct a constituency in support of the program by allocating the allowances to various interests without affecting either the environmental performance of the system or its aggregate social costs we examine the conditions under which the independence property is likely to hold both in theory and in practice

the political economy of market based environmental policy the u s acid rain program the u s acid rain program enacted in 1990 gave valuable tradable sulfur dioxide emissions permits called allowances to electric utilities we examine the political economy of this allocation though no senate or house votes were ever taken hypothetical votes suggest that the actual allocation would have beaten plausible alternatives while rent seeking behavior is apparent statistical analysis of differences between actual and benchmark allocations indicates that the legislative process was more complex than simple models suggest the coalition of states that produced and burned high sulfur coal both failed to block acid rain legislation in 1990 and received fewer allowances than in plausible benchmark allocations some of these states may have received additional allowances to cover 1995 99 emissions by giving up allowances in later years and some major coal producing states seem to have focused on benefits for miners and on sustaining demand for high sulfur coal

behavior of the firm under regulatory constraint a recent article by akira takayama discusses an earlier paper by harvey averch and leland l johnson on fair rate of return regulation of public utilities although takayama p 255 agrees with averch and johnson s general conclusions that a firm will tend to increase its investment with the introduction of an active constraint on its rate of return he criticizes the a j argument as being confusing ambiguous and in error takayama then attempts a clarification and presents a new formulation which leads to the a j result quoted above this comment will discuss several of takayama s criticisms in addition to showing that the so called a j effect cannot be derived from the basic assumptions made by both averch and johnson and takayama 1 we will show that the very assumptions used to prove the a j effect by defining the region of x require an assumption that the a j effect exists in the first place

economic prescriptions for environmental problems how the patient followed the doctor s orders o ne of the dangers with ivory tower theorizing is that it is easy to lose sight of the actual set of problems which need to be solved and the range of potential solutions as one who frequently engages in this exercise i can attest to this fact in my view this loss of sight has become increasingly evident in the theoretical structure underlying environmental economics which often emphasizes elegance at the expense of realism in this paper i will argue that both normative and positive theorizing could greatly benefit from a careful examination of the results of recent innovative approaches to environmental management the particular set of policies examined here involves two tools which have received widespread support from the economics community marketable permits and emission charges pigou 1932 dales 1968 kneese and schultze 1975 both tools represent ways to induce businesses to search for lower cost methods of achieving environmental standards they stand in stark contrast to the predominant command and control approach in which a regulator specifies the technology a firm must use to comply with regulations under highly restrictive conditions it can be shown that both of the economic approaches share the desirable feature that any gains in environmental quality will be obtained at the lowest possible cost baumol and oates 1975 until the 1960s these tools only existed on blackboards and in academic journals as products of the fertile imaginations of academics however some countries have recently begun to explore using these tools as part of a broader strategy for managing environmental problems

the effects of competition on publicly owned firms evidence from the municipal electric industry in the u s abstract previous studies have examined the effects of competition on privately owned firms this study examines the impact of competition on a sample of publicly owned electric utilities operating in the u s during 1961 1980 estimates from a translog variable cost function indicate that competitive firms had higher generating costs than monopolists ceteris paribus in addition it appears that operating costs would fall significantly if a single monopolist were to replace two competitors in a given market

ownership versus competition efficiency in public enterprise certainly the introduction of product market competition into potentially competitive or at least contestable markets can improve performance to take just one example morrison and whinston 1986 1986 estimate that even in the imperfectly contestable u s airline industry the annual u s welfare gains from deregulation have been around 6 billion

transaction costs and tradeable permits abstract tradeable permit systems are at the center of current interest and activity in market based reforms of environmental policy because these systems can offer significant advantages over conventional approaches to pollution control unfortunately claims made for their relative cost effectiveness have often been exaggerated transaction costs which may be significant in these markets reduce trading levels and increase abatement costs in some cases equilibrium permit allocations and hence aggregate control costs are sensitive to initial permit distributions providing an efficiency justification for politicians typical focus on initial allocations

what do emissions markets deliver and to whom evidence from southern california s nox trading program a perceived advantage of cap and trade programs over more prescriptive environmental regulation is that enhanced compliance flexibility and cost effectiveness can make more stringent emissions reductions politically feasible however increased compliance flexibility can also result in an inequitable distribution of pollution we investigate these issues in the context of southern california s reclaim program we match facilities in reclaim with similar california facilities also located in non attainment areas our results indicate that emissions fell approximately 24 percent on average at reclaim facilities relative to our counterfactual furthermore we find that observed changes in emissions do not vary significantly with neighborhood demographic characteristics

the gains from agricultural groundwater trade and the potential for market power theory and application this article models and estimates the efficiency gains from using market based instruments relative to command and control to manage groundwater a theoretical model of an imperfectly competitive groundwater market is developed to show how the magnitude and distribution of the gains from trade change as market structure varies market structure is a key consideration because future groundwater markets will likely feature geographic limitations to trade large agricultural players and a legal environment that is conducive to forming cartel like coalitions application of the model to a groundwater dependent agricultural region in southern california shows the existence of large gains from trade despite the potential for market power with benefits up to 36 greater than that under command and control distributional impacts however can be sizable even for small degrees of market power simulations that vary market conditions show that results likely generalize to other groundwater basins

efficient pollution regulation getting the prices right this paper argues for efficient environmental regulations that equate the mar ginal damage of pollution to marginal abatement costs across space the paper estimates the source specific marginal damages of air pollution and calculates the welfare gain from making the current sulfur dioxide allowance trading pro gram for power plants more efficient the savings from using trading ratios based on marginal damages are between 310 and 940 million per year the potential savings from setting aggregate emissions efficiently and from includ ing more sources of air pollution are many times higher jel h23 q53 q58

flexibility premium of emissions permits abstract investments in abatement technology are often characterised by irreversibility and significant implementation lags whereas emissions permits can be traded at any time as such abatement and emissions permit trading systems are hardly perfect substitutes we formally study the flexibility of emissions permits and propose a unified framework to rationalise the impact of both investment divestment lags and irreversibility in relation to the price of emissions permits using option pricing concepts we reformulate the technology adoption problem in terms of the technology s characteristics irreversibility and implementation lags and offer a conceptual quantification of the flexibility premium of emissions permits

uncertainty and ratification failure i study a game where two agents bargain on an agreement to replace the status quo for their agreement to come into effect they need the approval of a third agent the preferences of this third agent is private information but there is communication among agents i study this game in the context of international agreements to provide an explanation for involuntary ratification failures i show that under certain assumptions the informational deficiency is incurable due to incentives to misrepresent preferences and that a parliament whose majority is more hawkish than their executive prefers the executive to be risk averse

challenges from state federal interactions in us climate change policy with a focus on two sorts of regulation renewable electricity and clean energy standards and automobile fuel economy standards we analyze problematic interactions that arise when state policies are nested within the domain of federal policy here state efforts may fail to reduce greenhouse gas emissions nationally and may compromise cost effectiveness difficulties from overlapping regulations are avoidable through price as opposed to quantity based federal policy we identify some potentially positive interactions between state and federal policies and identify rationales for state action when federal and state policies do not overlap