the early history of modern ecological economics abstract this paper provides a historical perspective for the discussion on ecological economics as a special field of research by studying the historical background of ecological economics the present discussions and tensions inside the field might become easier to understand and to relate to the study is inspired by other studies of the emergence of new research areas done by sociologists and historians of science and includes both cognitive and social aspects macro trends and the role of individuals the basis for the paper is a combination of literature studies and interviews with key researchers from the field the story opens with the emergence of the new environmental agenda in the 1960s which was influenced by the scientific development in biology and ecology then it is outlined how the environmental challenge was met by economics in the 1960s around 1970 the basic ideas of ecological economics were given modern formulations but it took a long gestation period from the beginning of the 1970s to the end of the 1980s before ecological economics took shape during this gestation period the personal relationships between the actors were formed and the meetings that were decisive for the formal establishment of ecological economics took place

sustainability and externalities is the internalization of externalities a sufficient condition for sustainability in an important contribution in ecological economics van de bergh 2010 correctly concludes that sustainability does not imply zero externalities however he continues with the delphic statement delphic statements were uttered by the renowned oracle of ancient greece at delphi they were phrased in such a way as to be self fulfilling because alternative interpretations covered every possibility without externalities the problem of sustainability vanishes if this statement refers to an impossible economic process that produces no externalities then he is right however it might be interpreted as stating that whenever environmental policy internalizes environmental externalities then sustainability will be ensured in this note i assert that in the real world where externalities prevail their internalization or neutralization in the traditional way cannot lead to sustainability only if internalization takes a very specific form that results in the inviolable preservation of environmental rights of future generations in pure biological terms can sustainability be ensured after revised the original commentary i resubmit it the issues raised by the editor have been carefully considered

reforming libor and other financial market benchmarks libor is the london interbank offered rate a measure of the interest rate at which large banks can borrow from one another on an unsecured basis libor is often used as a benchmark rate meaning that the interest rates that consumers and businesses pay on trillions of dollars in loans adjust up and down contractually based on movements in libor investors also rely on the difference between libor and various risk free interest rates as a gauge of stress in the banking system benchmarks such as libor therefore play a central role in modern financial markets thus news reports in 2008 revealing widespread manipulation of libor threatened the integrity of this benchmark and lowered trust in financial markets we begin with a discussion of the economic role of benchmarks in reducing market frictions we explain how manipulation occurs in practice and illustrate how benchmark definitions and fixing methods can mitigate manipulation we then turn to an overall policy approach for reducing the susceptibility of libor to manipulation before focusing on the practical problem of how to make an orderly transition to alternative reference rates without raising undue legal risks

economics ecology based communities and sustainability abstract this paper comments on the inadequacy of orthodox economics when communities perceive themselves as ecology based that is when they recognize that their livelihood depends upon living natural resources not surprisingly an economics largely developed in the context of a spatial a natural industrialization and designed to serve the interests policies and tools of the nation state is inadequate when addressing communities within the context of their regions and ecological systems the author suggests that a sustainability economics is needed and that its character can be better focused if based on a local and regional ecosystem perspective the critique is relevant to general economic praxis because all economies depend upon natural processes and all economic actors are socialized within communities an approach to development of a sustainability economics is suggested

towards an operational sustainability criterion abstract this paper examines the concept of sustainability and its implications for environmental policy analysis it builds on the premise that present society holds a moral obligation to pass on a world of undiminished life opportunities to members of future generations maintaining life opportunities in turn can be achieved by maintaining or improving a diverse set of resources and capabilities that support a person s freedom to define and pursue her own conception of the good life on an operational level this framework points to the following guideline for environmental policy protecting the rights of future generations requires either the conservation of environmental resources or compensatory measures including the provision of substitute technologies that ensure the fair and proportionate sharing of net benefits over intergenerational time scales in this framework resource depletion is permissible only if with reasonable certainty it would generate a pareto improvement relative to a baseline scenario involving strict resource conservation

externalities a market model failure we focus here on a set of conceptual problems related to the accepted theory of externalities we are primarily concerned with difficulties that arise when a theoretical system is extended beyond its logical domain this is the practice in externality theory when the market model assuming independent agents is used to analyze physical interdependency the different kinds of dependencies obscure the standard use of the paretian analysis as the issues of rights and efficiency are mixed up the creation of emissions and the creation of externalities are further not held apart producing flows in the efficiency evaluations due to the interdependencies involved actions of both emitter and victim must be taken into account while searching for efficient policies finally we analyze the interrelationships between what is termed the internal structure of the market model and the annexed sphere of externalities we conclude that the accepted policy prescriptions both assume and demand no interrelationships between these two spheres we find the assumption unrealistic and inconsistent as concerns the basic foundations of the market model there are two main traditions addressing externalities the coasean and the pigovian this paper shows that both are vulnerable to the above critique thus the presumption that externality theory is now settled and coherent is seen to be without theoretical support

the place of the capability approach within sustainability economics the connections between the capability approach and sustainability economics have been explored recently i argue here that for engaging in a more substantive study of those connections we must first understand the place of the capability approach within the history of economic thought as a second stage of the revival of classical surplus theory once this is clear we can then use the capability approach in order to specify concepts such as well being surplus scarcity and sustainable reproduction which are essential for the development of sustainability economics

efficient competition through cheap talk the case of competing auctions we consider a large market where auctioneers with private reservation values compete for bidders by announcing cheap talk messages if auctioneers run efficient first price auctions then there always exists an equilibrium in which each auctioneer truthfully reveals her type the equilibrium is constrained efficient assigning more bidders to auctioneers with larger gains from trade the choice of the trading mechanism is crucial for the result most notably the use of second price auctions equivalently ex post bidding leads to the nonexistence of any informative equilibrium we examine the robustness of our finding in various dimensions including finite markets and equilibrium selection

trends in the development of ecological economics from the late 1980s to the early 2000s abstract as the contributions to ecological economics are very diverse recent years have seen some discussion on both how to delimit the field and in which direction it should develop the intention with this paper is to contribute to the discussion by outlining important trends in the development of the field from the late 1980s to the early 2000s the study is inspired by other studies in the sociology and history of science in particular by the theoretical framework regarding scientific fields as reputational organizations which draws attention to both cognitive and social aspects of the formation of a field the basis for the paper is a combination of literature studies interviews with key researchers in the field and participant observations the paper outlines the characteristic cognitive features of ecological economics at the time of the birth of the field it is then described how the development in ecological economics was influenced by broader social factors during the following years and how the field was shaped by the inflow and outflow of different groups of researchers the emergence of different research programmes is outlined as is the organizational development finally the characteristics of ecological economics are summarized and the future prospects are briefly assessed

the relevance of epistemic analysis to sustainability economics and the capability approach abstract this paper considers how epistemic analyses birkin and polesie 2011 foucault 1970 foucault 1990a foucault 1990b may assist with the development of sustainability economics bartelmus 2010 baumgartner and quaas 2010a baumgartner and quaas 2010b and soderbaum 2011 and the capability approach ballet et al 2011 martins 2011 rauschmayer and lesmann 2011 scerri 2012 it was the french social theorist michel foucault 1926 1984 who coined the term episteme to refer to the possibility of knowledge that determines the development of thought and knowledge in a given period for foucault epistemes were the buried foundations of knowledge that his epistemic archaeology could unearth in 2007 foucault was identified as the most cited author of books in the humanities by thomson reuters isi web of science this paper begins with a brief definition and description of epistemic analyses a summary analysis of the modern episteme and neoclassical economics is then provided and this is followed by outline evidence for the emerging episteme finally the opportunity is considered for the emerging episteme to reinforce and enhance sustainability economics and the capability approach

k william kapp s theory of social costs and environmental policy towards political ecological economics abstract the paper analyzes the contribution of k william kapp widely considered one of the founders of ecological economics this paper will demonstrate how k william kapp developed his theory of social costs into a framework for environmental policy development i e the basis for political ecological economics the latter provides the most comprehensive and non utilitarian alternative to the main neoclassical approaches provided by arthur pigou and ronald coase kapp determined basic human needs to be necessary values operational for policymaking via politically derived and scientifically determined social minima criteria and socio ecological indicators this rational humanism was inspired by weber s concept of substantive rationality and informed by john dewey s pragmatic instrumentalism the paper concludes that kapp s contribution is important enough to cement its place in the broader school of ecological economics

cheap talk and strategic rounding in libor submissions interbanking rates were until recently based on judgmental estimates of borrowing costs we interpret this as a cheap talk game that allowed banks to communicate nonverifiable information about their opportunity cost to potential counterparties under normal market conditions there is a welfare maximizing equilibrium where banks truthfully disclose their borrowing cost but in times of financial stress only coarse equilibria survive we take this prediction to the data and show that banks round more frequently if the risk of the bank increases rounding is also more frequent for the more liquid short term rates and certain benchmark maturities

a search based model of the interbank money market and monetary policy implementation we present a search based model of the interbank money market and monetary policy implementation banks are subject to reserve requirements and the central bank tenders reserves interbank payments redistribute holdings and banks trade with each other in a decentralized over the counter market the central bank provides standing facilities where banks can either deposit surpluses or borrow to cover shortfalls of reserves overnight the model provides insights on liquidity trading volume and rate dispersion in the interbank market features largely absent from the canonical models in the tradition of poole 1968 and fits a number of stylized facts for the eurosystem observed during the recent period of unconventional monetary policies moreover it provides insights on the implications of different market structures

a matter of opinion how ecological and neoclassical environmental economists and think about sustainability and economics abstract 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

ecological economics and scientific controversies lessons from some recent policy making in the eec abstract contrasting the very limited scientific evidence on the forest dieback issue with the sudden adoption of policies on air pollution decided in the frg 1983 1984 and extended to the european community 1985 we propose an interpretative framework for the real internalization process at work in what was tantamount to a social crisis for public opinion the media and political actors we conclude that open scientific controversies on some environmental issues effects causes solutions pave the way for some actors to use the issue for their own techno industrial strategies quite alien to ecological constraints in cases of very high uncertainties on impacts it becomes impossible to apply conventional social cost benefit analysis scba as an optimizing tool we propose to develop economic analysis as a negotiation language and to give pride of place to the value of learning time and to the crucial role of technological pluralism as a condition for flexibility in the future

does ecological economics have a future contradiction and reinvention in the age of climate change abstract this paper addresses the role of neoclassical methodologies in ecological economics and the contradictions these methodologies pose to the field s critical founding principles we first consider robert costanza s treatment of nicholas stern s global deal and then survey climate change related articles published in this journal over the past five years this survey reveals how mainstream neoclassical methodologies dominate discourse and do so by marginalizing more critical political economy analyses this situation imperils the field s founding vision of a no growth steady state it also fails to address the related growth dynamics of capitalism without such a critical treatment the field s formal embrace of methodological pluralism actually entails an ideological empiricism that renders ecological economics theoretically incoherent this situation undermines the field s historical promise as an alternative economic paradigm ecological economics now faces a problematic future its survival in a form faithful to its founding vision will require an explicit choice to address its internal contradictions and reinvent itself in ways relevant to our contemporary context without such a choice ecological economics will likely succumb to an implicit acceptance of the hegemony of mainstream economic methodologies and their pro growth imperatives

statistical evidence about libor manipulation a sherlock holmes investigation this paper contributes to the crucial problem of libor malfunctioning due to its manipulation by banks a phenomenon described clearly in the fsa inquiry report published in september 2012 after applying classical tests of non stationarity to a series of participating banks libor quotes we detected some significant breaks in the data that correspond to significant economic events namely lehman brothers bankruptcy or central banks decisions our conclusion is that a possible manipulation confirmed ex post in the fsa report can be deduced throughout the crisis period as a result of the behavior of the coefficients in a linear three regime threshold regression model finally we applied an original procedure to detect those banks most likely to build cartels or at least homogeneous groups during the important period of turmoil under review namely august 2007 through november 2012 this method called hierarchical clustering analysis helped us to precise the conclusions of the abovementioned fsa inquiry

sustainability economics as a contested concept sustainability economics as a concept is interpreted differently in different publications some authors look for a modification of mainstream neoclassical economics while the present author regard

externality or sustainability economics abstract in an effort to develop sustainability economics baumgartner and quaas 2010 neglect the central concept of environmental economics environmental externality this note proposes a possible connection between the concepts of environmental externality and sustainability in addition attention is asked for other aspects of sustainability economics namely the distinction weak strong sustainability spatial sustainability and sustainable trade distinctive sustainability policy and the ideas of early sustainability economists i argue that both sustainability and externalities reflect a systems perspective and propose that effective sustainability solutions require that more attention is given to system feedbacks notably other regarding preferences and social interactions and energy and environmental rebound the case of climate change and policy is used to illustrate particular statements as a conclusion a list of 20 insights and suggestions for research is offered

the ideology of efficiency searching for a theory of policy analysis the potential pareto improvement criterion and other measures of economic efficiency do not pass the test of consistency and coherence within economic theory nor do such measures accord with what public decision makers seek in policy advice from economists such efficiency measures are nonetheless durable components of the ideology of economics in general and benefit cost analysis in particular the objectivity of the policy scientist has been confused with the objectivity of the science while economic efficiency has no claim to objectivity the policy scientist can be an objective analyst of policy choices

dynamic hedging and extreme asset co movements the paper investigates the portfolio allocation effects of increased asset co movements during market downturns we develop a model for the stock price process that allows for increased and asymmetric dependence between extreme return realizations we isolate the portfolio hedging demands that arise due to extreme co movements and find a substantial shift of the portfolio holdings toward the risk free asset we demonstrate that accounting for dependence between extreme events in portfolio decisions leads to significant economic gains that stem primarily from intertemporal hedging motives these findings are robust along alternative modeling assumptions of extreme co movements and conditional correlation

the case for methodological pluralism abstract ecology and economics share the same greek root both address complex systems ecology consists of numerous approaches to understanding natural systems energetics population biology food web models hierarchy theory to mention just a few within ecology field knowledge and the reporting of new observations are well respected economics on the other hand is dominated by one pattern of thinking and standard of proof the market model and econometrics within economics field knowledge and observations per se are little valued agreement on a correct method is frequently taken as an indication of the maturity of a science the argument is developed in this paper that all the aspects of complex systems can only be understood through multiple methodologies the agreement on method within economics however seems to reflect stronger pressures within the discipline for conformity than for truth relative to ecology since ecological economics seeks to understand a larger system than either economics or ecology seeks to understand a diversity of methodologies is appropriate and pressures to eliminate methodologies for the sake of conformity should be avoided

new foundations for ecological economics abstract ecological economics has been repeatedly described as transdiciplinary and open to including everything from positivism to relativism i argue for a revision and rejection of this position in favour of realism and reasoned critique looking into the ontological presuppositions and considering an epistemology appropriate for ecological economics to meaningfully exist requires rejecting the form of methodological pluralism which has been advocated since the start of this journal this means being clear about the differences in our worldview or paradigm from others and being aware of the substantive failures of orthodox economics in addressing reality this paper argues for a fundamental review of the basis upon which ecological economics has been founded and in so doing seeks improved clarity as to the competing and complementary epistemologies and methodologies in part this requires establishing serious interdisciplinary research to replace superficial transdisciplinary rhetoric the argument places the future of ecological economics firmly amongst heterodox economic schools of thought and in ideological opposition to those supporting the existing institutional structures perpetuating a false reality of the world s social environmental and economic systems and their operation

allocation distribution and scale towards an economics that is efficient just and sustainable abstract the practical policy of issuing tradeable permits for depletion and pollution requires for its implementation the clear separation of the three basic economic goals of efficient allocation equitable distribution and sustainable scale economic theory needs to catch up with policy in recognizing that scale issues cannot be reduced to either allocation or distribution

towards an ecological economics of sustainability abstract persistent disagreement both as to the interpretation to be given to sustainability and as to the relation between ecological and economic sustainability has hindered the development of an ecological economics of sustainable resource use this paper identifies the main concepts of sustainability deriving from the two disciplines in order to explore the difference implied by an ecological approach to the problem it is argued that present economic and ecological approaches are largely disjoint and that they address basically different phenomena by combining the efficiency requirements of what is usually thought of as economic sustainability with the stability requirements of an ecological approach it is shown that an intertemporally efficient allocation of resources that satisfies the conditions for constant levels of consumption is not necessary to assure ecological sustainability ecological sustainability requires that the allocation of economic resources should not result in the instability of the economy environment system as a whole

the approach of ecological economics this paper discusses the major tenets of ecological economics including value pluralism methodological pluralism and multi criteria policy assessment ecological economics offers viable alternatives to the theoretical foundations and policy recommendations of neoclassical welfare economics a revolution in neoclassical economics is currently taking place and the core assumptions of welfare economics are being replaced with more realistic models of consumer and firm behaviour this paper argues that these new theoretical and empirical findings are largely ignored in applied work and policy applications in environmental economics as the only heterodox school of economics focusing on the human economy both as a social system and as one imbedded in the biophysical universe and thus both holistic and scientifically based ecological economics is poised to play a leading role in recasting the scope and method of economic science

use and usefulness of sustainability economics abstract sustainable development is at the roots of sustainability economics baumgartner and quaas 2010 define sustainability economics as the combination of economic efficiency and justice in the distribution of nature s services van den bergh in press criticizes their approach as axiomatic and incomplete lacking a discussion of environmental externalities and dogmas like the gdp dogma the focus on non measurable welfare or happiness in both articles impairs the use and usefulness of their sustainability notions for applied economics and policy alternatively environmentally modified national accounts offer a quantifiable sustainability concept of produced and natural capital maintenance for practical reasons sustainability economics should therefore deal with sustainable economic performance and growth coordination with other social goals has to be left to politics

the over the counter theory of the fed funds market a primer we present a dynamic over the counter model of the fed funds market and use it to study the determination of the fed funds rate the volume of loans traded and the intraday evolution of the distribution of reserve balances across banks we also investigate the implications of changes in the market structure as well as the effects of central bank policy instruments such as open market operations the discount window lending rate and the interest rate on bank reserves

the concept of weak sustainability abstract this paper surveys the links between growth theory with exhaustible resources and the concept of weak sustainability it examines the underlying assumptions behind this concept and questions the usefulness of the weak sustainability index as an indicator of sustainable development

trade dynamics in the market for federal funds we develop a model of the market for federal funds that explicitly accounts for its two distinctive features banks have to search for a suitable counterparty and once they have met both parties negotiate the size of the loan and the repayment the theory is used to answer a number of positive and normative questions what are the determinants of the fed funds rate how does the market reallocate funds is the market able to achieve an efficient reallocation of funds we also use the model for theoretical and quantitative analyses of policy issues facing modern central banks

a note on sustainability economics and the capability approach sustainability economics attempts to reconcile efficiency criteria with those of social justice in a context of environmental concern this article aims at highlighting the fact that the capability approach offers an interesting perspective for the foundation of sustainability in economics it primarily focuses on the major role that freedom brings as a normative basis for well being and adds new insights for our understanding of human and environment relationship through the study of the constraints and opportunities that affect the individual the final section of this article asks us to reconsider our nature conservation choices by acknowledging the restrictive impact that they have on individual freedoms

are we consuming too much this paper articulates and applies frameworks for examining whether consumption is excessive we consider two criteria for the possible excessiveness or insufficiency of current consumption one is an intertemporal utility maximization criterion actual current consumption is deemed excessive if it is higher than the level of current consumption on the consumption path that maximizes the present discounted value of utility the other is a sustainability criterion which requires that current consumption be consistent with non declining living standards over time we extend previous theoretical approaches by offering a formula for the sustainability criterion that accounts for population growth and technological change in applying this formula we find that some poor regions of the world are failing to meet the sustainability criterion in these regions genuine wealth per capita is falling as investments in human and manufactured capital are not sufficient to offset the depletion of natural capital

sustainability economics where do we stand abstract environmental economics which is a branch of resource economics the environment as a scarce resource is essentially about market failures the costs of pollution and pollution abatement and the economics of regulation sustainability economics includes the problem of maintaining economic growth while reducing pollution and or its impacts with special attention to the linked problems of energy supply not to mention the supply other exhaustible resources climate change and most urgently fossil fuel consumption there is a need for integration of resource and environmental economics under a new rubric sustainability economics

towards a new complexity economics for sustainability some of the most important and urgent topics requiring economic analysis and policy advice are the problems of climate change and environmental sustainability and what can be done to alter corporate and individual behaviour to deal with these issues neoclassical economists tend to focus on market solutions such as carbon trading drawing on ideas of perfect rationality of actors and the appropriateness of marginal analysis to link such policies to the whole range of potential actions from legislative and regulatory to changing individual behaviours requires the economy and society to be analysed in its full complexity recognising that marginal analysis can be not just irrelevant but positively harmful when the need is for systemic shifts in economic and social trajectories this article draws upon a seminar series on complexity economics to consider how heterodox economic analysis can be brought to bear on the issue of the environment to develop a realistic policy agenda for change copyright oxford university press

sustainable development in a post brundtland world not yet two decades after the publication of our common future the world s political and environmental landscape has changed significantly nonetheless we argue that the concept and practice of sustainable development sd as guiding institutional principle as concrete policy goal and as focus of political struggle remains salient in confronting the multiple challenges of this new global order yet how sd is conceptualized and practiced hinges crucially on the willingness of scholars and practitioners to embrace a plurality of epistemological and normative perspectives on sustainability the multiple interpretations and practices associated with the evolving concept of development and efforts to open up a continuum of local to global public spaces to debate and enact a politics of sustainability embracing pluralism provides a way out of the ideological and epistemological straightjackets that deter more cohesive and politically effective interpretations of sd using pluralism as a starting point for the analysis and normative construction of sustainable development we pay particular attention to how an amalgam of ideas from recent work in ecological economics political ecology and the development as freedom literature might advance the sd debate beyond its post brundtland quagmire enhanced levels of ecological degradation vast inequalities in economic opportunities both within and across societies and a fractured set of institutional arrangements for global environmental governance all represent seemingly insurmountable obstacles to a move towards sustainability while these obstacles are significant we suggest how they might be overcome through a reinvigorated set of notions and practices associated with sustainable development one that explicitly examines the linkages between sustainability policies and sustainability politics

economic schools of thought on the environment investigating unity and division how do ecological and heterodox economists differ if at all from each other and from neoclassical economists addressing environmental problems in 2009 we probed this question by conducting an international survey across these communities namely at conferences of the european society for ecological economics the association for heterodox economics and the european association of environmental and resource economists the research was designed to gain insight into the extent to which ecological economics can be described as heterodox and a distinct field from orthodox environmental and resource economics conflicting visions of ecological economics have led to a prevalence of neoclassical articles and thought mixed in amongst more heterodox work we introduce a novel classification of work in the field of environmental policy in order to test for the existence of differences in terms of methodological and ideological approaches how heterodox economists understand environmental issues is also an important question to answer if there is to be more collaboration between them and ecological economists the findings have implications for cooperation and the future direction of both ecological and heterodox economics

ends in view the capabilities approach in ecological sustainability economics while traditional scientific endeavor seeks to avoid the problem ecological economics and the broader emergent field of sustainability economics e se are explicitly grounded in a particular ethico moral assertion one that defines sustainability as a normative notion about the way how humans should act towards nature and how they are responsible towards one another and future generations baumgartner and quaas 2010 p 445 thus e se is neither a purely positive science nor is it a purely normative endeavor but it is what has been called relevant science baumgartner and quaas 2010 p 447 a key objective of e se is therefore said to be to study how ecosystems and human activity interrelate in terms that extend beyond functional and descriptive analysis of this interrelationship and towards explicitly incorporating this normative vision the result that is aimed for is a discipline that is constituted as the best possible approach to the science and management of sustainability

intergenerational resource rights efficiency and social optimality the discipline of economics is generally defined as the science of the allocation of scarce resources between competing social objectives given an initial distribution of resources between economic agents how would they behave so as to improve their welfare according to the pareto criterion the agents would exchange commodities until the opportunities for fruitful exchange were fully exhausted and no agent could be made better off without rendering at least one other agent worse off pareto efficiency is a powerful concept in microeconomic analysis provided that the initial distribution of property rights is equitable allocative efficiency gives rise to the best of all possible worlds acknowledging that the assumptions of perfect competition are often violated firms are monopolistic information is incomplete and externalities exist economists have argued for the modification of institutions so that economic reality will conform more closely to the assumptions of the model that yields such gratifying results but microeconomic theory has always maintained that allocative efficiency is in itself insufficient to maximize social welfare bator 1957 a social welfare function is required to discriminate a social optimum among the array of efficient allocations that correspond to alternative assignments of property rights though economists have posited alternative functional forms for the sake of pursuing conceptual arguments welfare functions have remained elusive constructs for well known theoretical and practical reasons consequently a sharp line of demarcation has been drawn between questions of efficiency the province of economics and equity the principal focus of ethical and political discourse in resource economics however the line demarcating efficiency and equity is often crossed the term optimal depletion appears regularly where only efficient depletion is meant while political debates about resource exploitation over time are laden with questions of the proper distribution of our natural patrimony between generations resource economists have predominantly espoused particular use rules that guarantee efficiency but overlook potential improvements in social welfare achievable through the reassignment of property rights across generations we document the evolution and current status of the misuse of the term optimal depletion in section ii we develop a simple two generation three period general equilibrium model in section iii to illustrate how alternative distributions of resource rights between generations relate to alternative pareto efficient solutions in section iv we demonstrate how different social welfare functions affect the optimal solution and associated assignment of resource rights between generations

information reliability and welfare a theory of coarse credit ratings abstract an enduring puzzle is why credit rating agencies cras use a few categories to describe credit qualities lying in a continuum even when ratings coarseness reduces welfare we model a cheap talk game in which a cra assigns positive weights to the divergent goals of issuing firms and investors the cra wishes to inflate ratings but prefers an unbiased rating to one whose inflation exceeds a threshold ratings coarseness arises in equilibrium to preclude excessive rating inflation we show that competition among cras can increase ratings coarseness we also examine the welfare implications of regulatory initiatives

unraveling the veil of fuzziness a thick description of sustainability economics this article provides a thick description geertz 1973 of sustainability economics baumgartner and quaas 2010a b have proposed as an alternative to ecological economics the new field of sustainability economics which has triggered various replies the purpose here is to order and to review these contributions building upon a literature review of sustainability economics the paper argues that the concept currently has more of a fuzzy and declamatory character the rhetoric mccloskey 1998 of sustainability economics contains general issues of sustainability economics externalities and the capability approach the article argues that it is currently not clear how the solutions for science and policy proposed by sustainability economics differ from those of ecological economics efforts should be directed towards further development of the theory and the operationalization of sustainability principles the systemic view of co evolutionary development social learning and sustainability economics normative underpinning merits more consideration in the debate about sustainability economics