ecosystem services from eye opening metaphor to complexity blinder abstract what started as a humble metaphor to help us think about our relation to nature has become integral to how we are addressing the future of humanity and the course of biological evolution the metaphor of nature as a stock that provides a flow of services is insufficient for the difficulties we are in or the task ahead indeed combined with the mistaken presumption that we can analyze a global problem within a partial equilibrium economic framework and reach a new economy project by project without major institutional change the simplicity of the stock flow framework blinds us to the complexity of the human predicament the ecosystem services approach can be a part of a larger solution but its dominance in our characterization of our situation and the solution is blinding us to the ecological economic and political complexities of the challenges we actually face

piketty and the growth dilemma revisited in the context of ecological economics 2017 elsevier b v piketty s capital has provoked considerable debate regarding inequality the existence of increasing inequality creates a challenge for ecological economics in this paper we set out some of the problems inherent in piketty s approach and how they are addressed from the point of view of ecological economics we use jackson and victor s response as a point of departure to make several points piketty s work involves an unreconciled inconsistency between his laws and the institutional context which becomes problematic when one starts to think about inevitability he simply assumes away ecological problems to make future forecasts for inequality as such his forecasts are undermined since ecological issues are fundamental to any viable future economy furthermore piketty effectively reproduces rather than contests the mainstream practice of delegating ecological issues to a sub discipline jackson and victor meanwhile focus on the mainstream economic aspect of piketty s work and construct a model to contest a model in so doing they provide an ideational response to what is also a problem of ideological frameworks though it can be important to contest an idea they inadvertently through family resemblance contribute to the reproduction of the problematic position of ecological concerns within dominant ways of conceiving economics

the environmental social interface of sustainable development capabilities social capital institutions the social dimension has commonly been recognised as the weakest pillar of sustainable development notably when it comes to its analytical and theoretical underpinnings while increasing attention has lately been paid to social sustainability the interaction between the environmental and the social still remains a largely uncharted terrain nevertheless one can argue that the key challenges of sustainable development reside at the interfaces synergies and trade offs between its various dimensions this paper looks for preliminary ideas on frameworks for analysing the environmental social interface it first discusses the concept of sustainable development and the relations of the three dimensions of sustainability on the basis of the fundamental premises of neoinstitutional and ecological economics and briefly presents the bioeconomy model based on this conceptualisation of sustainable development it then goes on to analyse two popular ways of addressing the social dimension of sustainability namely the capability approach of amartya sen and the concept of social capital and discusses the potential of these as bases for the analysis of the environment social interaction the organisation for economic cooperation and development oecd environmental performance review epr programme is presented as an example of attempts to analyse the environmental social interface in practice the paper concludes by noting that a single framework for studying environmental social interface is neither feasible nor desirable it questions the usefulness of analysing only two dimensions of sustainability at a time and emphasises the need to situate the analysis in its context in particular it stresses the need to involve the potential users as well as to take into account the planned use of the analysis and the interactions between different levels of analysis and decision making capabilities and social capital can both be useful in structuring thoughts but are not as such directly applicable as suitable analytical frameworks in particular they do not provide adequate tools for examining the social preconditions for institutional change needed for environmentally sustainable development

towards a science of sustainability improving the way ecological economics understands human well being abstract ecological economics seeks to recognize what traditional economics often ignores that the economy is embedded in wider social and biophysical systems to date ecological economics has focused on the biophysical dimensions of these interactions yet achieving sustainable development will require difficult decisions regarding which environmental and other assets should be preserved and in what form this emphasizes the importance of understanding why particular environmental resources and services are important to human well being and how social and economic institutions may be structured to make the best use of these and other forms of capital the paper thus examines a variety of approaches to well being characterizing these as interpreting well being as a state of mind as a state of the world as human capability or as the satisfaction of underlying needs the literature surveyed is drawn largely from political philosophy and psychology and includes classical utilitarianism and self evaluative approaches descriptive utilitarianism and preference based approaches the basic needs approach functional approaches and underlying needs based and virtue based approaches particular authors include michalos scitovsky easterlin hirsch galbraith rawls sen maslow boyden and max neef the ideas examined are found to have significant implications for economic theory and policy especially regarding the social construction of preferences the treatment of distributional issues the identification of universal underlying needs and the relationship between the satisfaction of these needs and perceived well being these insights suggest that rising real incomes are unlikely to result in improved community well being calling into question the traditional economic view of progress they also offer a new path to sustainable development in which the primary focus is on the cultivation of appropriate institutions and attitudes rather than on the better management of resources the paper concludes that important aspects of social economic and environmental systems are codetermined and thus that achieving sustainable development will require an expansion of the scope of analysis to encompass a wider system dynamic the most promising approaches to well being in this context are those that identify universal underlying human needs thus avoiding the commodity fetishism of mainstream economics

optimal capital income taxation with incomplete markets borrowing constraints and constant discounting for a wide class of infinitely lived agent models chamley has shown that the optimal capital income tax rate is zero in the long run lucas has argued that for the u s economy there is a significant welfare gain from switching to this policy this paper shows that for the bewley class of models with incomplete insurance markets and borrowing constraints the optimal tax rate on capital income is positive even in the long run therefore cutting the capital income tax to zero may well lead to welfare losses

proposal for a national inventory adjustment for trade in the presence of border carbon adjustment assessing carbon tax policy in japan abstract in this paper we pointed out a hidden inequality in accounting for trade related emissions in the presence of border carbon adjustment under a domestic carbon pricing policy producers pay for the carbon costs in exchange for the right to emit under border carbon adjustment however the exporting country pays for the carbon costs of their exports to the importing country but not be given any emission credits as a result export related emissions will be remained in the national inventory of the exporting country based on the unfccc inventory approach this hidden inequality is important to climate policy but has not yet been pointed out to address this issue we propose a method of national inventory adjustment for trade by which export related emissions will be deducted from the national inventory of the exporting country and added to the national inventory of the importing country which implements border carbon adjustment to assess the policy impacts we simulated a carbon tax policy with border tax adjustment for japan using a multi region computable general equilibrium model the results indicate that with the national inventory adjustment for trade both japan s national inventory and the carbon leakage effects of japan s climate policy will be greatly different

strong sustainability critical natural capital and the capability approach this article is an attempt to conceptually improve the notion of strong sustainability by creating a rapprochement between its core concept critical natural capital and the capability approach we first demonstrate that the capability approach constitutes a relevant framework for analysing the multiple links between human well being and critical natural capital second we demonstrate that the rapprochement between critical natural capital and the capability approach can form both the normative basis and the informational basis for a deliberative approach to human development which embraces a strong sustainability perspective this conceptual rapprochement as illustrated in our case study opens up avenues of research towards the practical implementation of human development projects from a strong sustainability perspective

approximating infinite horizon models in a complementarity format a primer in dynamic general equilibrium analysis abstract we demonstrate the advantages of the complementarity formulation for approximating infinite horizon equilibria in neoclassical growth models as compared with techniques originally developed for optimal planning models the complementarity approach does not require an ex ante specification of the growth rate in the terminal period and is therefore suitable for models with endogenous growth or short time horizons we also consider approximation issues in models with multiple infinitely lived agents changes in net indebtedness over a finite period are estimated as part of the model to obtain a precise approximation of the infinite horizon equilibria with a small number of time periods

targeted transfers and the fiscal response to the great recession abstract between 2007 and 2009 government expenditures increased rapidly across the oecd countries while economic research on the impact of government purchases has flourished in the data most of the increase in expenditures was in government transfers after documenting this fact we argue that future research should focus on the positive impact of transfers towards this we present a model in which there is no representative agent and ricardian equivalence does not hold because of uncertainty imperfect credit markets and nominal rigidities targeted lump sum transfers are expansionary both because of a neoclassical wealth effect and because of a keynesian aggregate demand effect

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

nit picking the macroeconomic effects of a negative income tax i study a revenue neutral reform of the u s income tax and welfare system that involves the adoption of a negative income tax nit the reform is undertaken in a life cycle economy with individual heterogeneity and uninsurable idiosyncratic labor risk the optimal nit consists of a 22 rate and a transfer equivalent to 11 of per capita gdp the ex ante average welfare gain is a 2 1 annual increase of individual consumption i show that a nit outperforms a flat tax reform income tax plus deduction by a considerable margin the key consequence of the reform is that high productivity agents increase their relative importance in the labor supply at the expense of low productivity agents

the optimum quantity of debt abstract we find that the welfare gains to being at the optimum quantity of debt rather than the current us level are small and therefore concerns regarding the high level of debt in the us economy may be misplaced this finding is based on a model of a large number of infinitely lived households whose saving behavior is influenced by precautionary saving motives and borrowing constraints this model incorporates a different role for government debt than is found in standard models and it captures different cost benefit trade offs on the benefit side government debt enhances the liquidity of households by providing an additional means of smoothing consumption and by effectively loosening borrowing constraints on the cost side the implied taxes have adverse wealth distribution and incentive effects in addition government debt crowds out capital via higher interest rates and lowers per capita consumption

an empirical model of labor supply in a life cycle setting this paper formulates and estimates a structural intertemporal model of labor supply using theoretical characterizations derived from an economic model of lifetime behavior a two step empirical analysis yields estimates of intertemporal and uncompensated substitution effects which provide the information needed to predict the response of hours of work to life cycle wage growth and shifts in the lifetime wage path

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

the effectiveness of government debt and transfers as insurance abstract government debt and redistributive taxation can help people to smooth consumption when facing uninsurable individual specific risk i examine the effects that variations in public debt and transfers have on risk sharing efficiency and the distribution of resources i find that risk sharing can be improved significantly by both debt and transfers but that debt has adverse effects on equity when used in isolation debt will enhance welfare if transfers are lower than optimal however the beneficial effects of public debt vanish if transfers are used optimally

exploring futures for amazonia s sierra del divisor an environmental valuation triadics approach to analyzing ecological economic decision choices in the context of major shifts in boundary conditions abstract this text presents a new methodological approach to ecological economic analysis employing georgescu roegen s flow fund theory of economic process it offers an alternative to monetary valuation based analyses and aims to contribute toward advancing work concerned with addressing complex ecological economic questions as complete wholes the methodology is demonstrated through reference to the empirical case of a proposed rail link between peru and brazil which would cut across the sierra del divisor of western amazonia connecting the pacific and atlantic coasts and further opening up the amazon commodity frontier in order to analyze the potential impacts of the rail link four flow fund representations of economic process two at the regional and two at the local level are developed in order to juxtapose two alternative political economy contexts that might govern the rail link s impacts in the region one where conservation is prioritized over cash income and one where it is not our results suggest that completion of the rail link under the current political economy context which prioritizes cash income over conservation is likely to have substantial negative consequences for forest conservation in both peru and brazil and for local livelihoods throughout the region

environmental valuation under sustainable development environmentalism has evolved since the 1960 s from a concern with the preservation of wilderness in the american experience to a concern over pollution of human habitat throughout the industrialized world northern anxiety spread to the loss of tropical rainforests and biodiversity in the south where environmentalism evolved further in an encounter with indigenous interpretations conditions and priorities by the late 1980 s climate change emerged as a central issue in a now global discourse on the relationship between environment and development the principle of sustainable development that current needs are to be met as fully as possible while ensuring that the life opportunities of future generations are undiminished relative to present is now widely accepted this paper illustrates that incorporating environmental values per se in decision making will not bring about sustainability unless each generation is committed to transferring to the next sufficient natural resources and capital assets to make development sustainable 11 refs 3 figs

a framework for the practical application of the concepts of critical natural capital and strong sustainability this paper develops a methodology for identifying that natural capital called critical natural capital cnc the maintenance of which is essential for environmental sustainability by consideration of the characteristics of natural capital of the environmental functions that these characteristics enable natural capital to perform and of the importance of these functions to humans and the biosphere it shows how sustainability standards in respect of these environmental functions may be derived the difference between the current situation and these standards is termed the sustainability gap the methodology that emerges from bringing these ideas together into a single analytical framework enables policy makers to identify the extent of current unsustainability the principal causes of it the elements and processes of natural capital the cnc which need to be maintained or restored to close the sustainability gap and the costs of so doing the framework should therefore be of use in identifying priorities and policies for moving towards environmental sustainability

beyond environmental and ecological economics proposal for an economic sociology of the environment the vast majority of approaches in environmental economics attribute the current ecological crisis to the fact that from its inception the industrial economic system was founded on premises that made no allowance for the limits and regulatory functions of ecosystems according to these approaches we must therefore remedy the historical error of dissociating the fields of economics from the natural sciences notably by restoring the links between these two disciplines distinguishing themselves from the two historic approaches environmental economics and early ecological economics the emerging institutionalist schools evoke not only the constructed nature of the environmental crisis generally viewed as an objective fact by both traditional environmental economists and ecological economists but also the socially constructed nature of the economy and its institutions an actionalist regulationist approach allows us to formalize this twofold construction and lays the groundwork for a new economic sociology of the environment in which the technical modalities of ecological modernization are studied in light of social relations with the understanding that social relations are also affected by the materiality of the environmental crisis this actionalist regulationist approach also lends itself to anticipating likely trajectories in the future ecological modernization of economic institutions

discourse based valuation of ecosystem services establishing fair outcomes through group deliberation discourse based methods involving small groups of citizens have yet to be thoroughly engaged in the practice of ecosystem valuation this remains true despite the fact that many ecosystem goods and services such as clean air biodiversity and unpolluted lakes and rivers are considered to be public goods the conventional application of ecosystem valuation relies heavily on methodologies such as contingent valuation in which individuals are asked to express the value they attach to ecosystem goods and services in social isolation the difference between the public nature of ecosystem services and their valuation through individual expression has thus recently led to calls for more deliberative forms of environmental valuation because the allocation of ecosystem services directly affects many people and raises normative questions about social equity it is argued that carefully designed discursive methods will help ensure the achievement of social equity goals in this paper we examine the theoretical and normative assumptions that rest beneath the proposed turn towards discourse based methods and identify procedures for testing their application in the field 2002 elsevier science b v all rights reserved

a review of recent multi region input output models used for consumption based emission and resource accounting abstract the interest in consumption based emission and resource accounting has grown significantly many studies juxtapose consumer emissions carbon footprint and producer territorial emissions of greenhouse gases in order to demonstrate the effects of trade on the national emission budget to this end a respectable number of studies have been undertaken worldwide in order to estimate emissions embedded in international trade of numerous countries and world regions input output approaches and increasingly multi region input output mrio models are commonly chosen as they provide an appropriate methodological framework for complete carbon footprint estimates at the national and supra national level with increasing processing capabilities of computers and a wider availability of economic accounts environmental accounts and trade data such models are now being implemented on a wide scale after a brief overview of salient single region input output studies i provide an in depth review of the most recent multi region input output models used for the purpose of consumption based environmental accounting the main methodological features and important results are described for around twenty studies covering the years 2007 to 2009 this is followed by a detailed review of studies dealing with uncertainty in mrio analysis an area which has not received a lot of attention so far i conclude that further research is mainly needed in two areas a improvements in data availability and quality and b improvements in the accuracy of mrio modelling

redistributive taxation in a simple perfect foresight model abstract we investigate the redistributive potential of capital taxation in an intertemporal maximizing model of capital formation first even unanticipated redistributive capital taxation is severely limited in its effectiveness since it depresses wages second under any convergent redistributive tax policy which maximizes a paretian social objective the capital income tax will converge to zero independent of the factor supply elasticities these results are independent of workers holdings of capital

education policy and intergenerational transfers in equilibrium this paper compares partial and general equilibrium effects of alternative financial aid policies intended to promote college participation we build an overlapping generations life cycle heterogeneous agent incomplete markets model with education labor supply and consumption saving decisions altruistic parents make inter vivos transfers to their children labor supply during college government grants and loans as well as private loans complement parental transfers as sources of funding for college education we find that the current financial aid system in the u s improves welfare and removing it would reduce gdp by two percentage points in the long run any further relaxation of government sponsored loan limits would have no salient effects the short run partial equilibrium effects of expanding tuition grants especially their need based component are sizeable however long run general equilibrium effects are 3 4 times smaller every additional dollar of government grants crowds out 20 30 cents of parental transfers

inequality sustainability and piketty s capital abstract in this article i address the implications of thomas piketty s book capital in the twenty first century for our understanding of inequality and sustainability drawing upon amartya sen s capability approach and the revival of classical political economy it brings i argue that piketty s contribution is a significant one which has the potential to lead economic analysis in a more fruitful direction but its potential becomes much greater if its empirical analysis is combined with the revival of classical political economy undertaken by sen and other authors rather than with marginalist theory

the effectiveness of consumption taxes and transfers as insurance against idiosyncratic risk we quantitatively evaluate the effectiveness of a consumption tax and transfer program as insurance against idiosyncratic earnings risk our framework is a heterogeneous agent incomplete market model with idiosyncratic wage risk and indivisible labor the model is calibrated to the u s economy we find a weak insurance effect of the transfer program extending the transfer system from the current scale raises consumption uncertainty which increases aggregate savings and reduces the interest rate furthermore consumption inequality shows a small decrease

payments for ecosystem services as commodity fetishism abstract payments for ecosystem services pes economically reward resource managers for the provision of ecosystem services and are thus characterised by i an ecological function subject to trade ii the establishment of a standard unit of exchange iii and supply demand and intermediation flows between those who sell and buy ecosystem services this paper departs from the term commodity fetishism broadly understood as the masking of the social relationships underlying the process of production to illuminate three invisibilities in the commodification of ecosystem services firstly we argue that narrowing down the complexity of ecosystems to a single service has serious technical difficulties and ethical implications on the way we relate to and perceive nature secondly the commodification of ecosystem services denies the multiplicity of values which can be attributed to these services since it requires that a single exchange value is adopted for trading finally we suggest that the process of production exchange and consumption of ecosystem services is characterised by power asymmetries which may contribute to reproducing rather than addressing existing inequalities in the access to natural resources and services

ecosystems strong sustainability and the classical circular economy abstract in this article i argue that notions such as ecosystem services and strong sustainability can be best understood and developed within the theoretical framework advanced by the classical political economists in which a circular conception of the economy is provided i also argue that the development of notions such as ecosystem services and strong sustainability has been constrained by the dominance of neoclassical economics which provides a linear conception of the economy and leads to an emphasis on weak sustainability which in turn springs from an emphasis on substitutability and aggregate capital when assessing the relevance of classical political economy for studying ecosystem services and strong sustainability i consider not only the contributions of the classical political economists but also more recent contributions which draw upon the classical perspective such as piero sraffa s and amartya sen s

relative wage movements and the distribution of consumption we analyze how relative wage movements among birth cohorts and education groups affected the distribution of household consumption and economic welfare our empirical work draws on the best available cross sectional data sets to construct synthetic panel data on u s consumption labor supply and wages during the 1980s we find that low frequency movements in the cohort education structure of pretax hourly wages among men drove large changes in the distribution of household consumption the results constitute a spectacular failure of between group consumption insurance a failure not explained by existing theories of informationally constrained optimal consumption behavior a welfare analysis indicates that the cost of between group consumption variability is larger than the cost of aggregate consumption variability by two orders of magnitude

who is credit constrained in the u s economy an important assumption of the life cycle model of consumption is the postulate of perfect capital markets this hypothesis has recently been challenged by substantial empirical evidence hall and mishkin 1982 using the panel study of income dynamics estimate that 20 percent of united states families are liquidity constrained mariger 1986 derives a life cycle model with endogenous liquidity constraints and using a cross section estimates this fraction to be 19 4 percent hubbard and judd 1986 simulate a model with a constraint on net worth which shows that with reasonable assumptions about preferences 19 0 percent of united states consumers are liquidity constrained the emerging consensus points therefore to a fraction of approximately 20 percent of the population behaving in a manner that is inconsistent with the pure life cycle model in addition hayashi 1985 and zeldes 1989 investigate the correlation among consumption wealth and income for various population groups and infer that liquidity constraints are more important for younger families with low levels of wealth and saving the main limitation of these studies is that in their data sets constrained consumers are not observable and have to be identified via indirect evidence thus there is as yet little firm evidence about the characteristics of the consumers who are likely to be credit constrained this paper adopts an approach that differs from previous tests for liquidity constraints because it makes use of data where constrained consumers are observable and explicitly links their existence to credit market imperfections and personal characteristics the data drawn from the 1983 survey of consumer finances scf and described in section ii provide information on individuals whose request for credit has been rejected by financial intermediaries in section iii a model is developed in which consumers and lenders behavior jointly determines the probability that a consumer is rationed in the credit market this probability is then

distributional incentives in an equilibrium model of domestic sovereign default the european debt crisis shares features of historical episodes of outright default on domestic public debt about which little research has been done this paper proposes a theory of domestic sovereign default in which a government chooses debt and default optimally responding to distributional incentives affecting the welfare of risk averse agents who are split into debt holders and non holders equilibria with debt do not exist if the government is utilitarian and default is costless adding exogenous default costs the model supports equilibria with debt exposed to default risk in which debt falls as the fraction of agents who own the debt falls debt can also be sustained if the government s welfare weights are biased in favor of bond holders resulting in equilibria in which debt rises as debt ownership is more concentrated these results are robust to adding a second asset opening the economy to foreign investors or introducing taxes as an alternative redistributive policy instrument

reducing government debt in the presence of inequality abstract what are the welfare effects of government debt in particular what are the welfare consequences of government debt reductions we answer these questions with the help of an incomplete markets economy with production households are subject to uninsurable income shocks we make several contributions first by targeting the skewed wealth and earnings distribution of the us economy in our calibration we identify inequality as the major driver of the welfare effects of public debt gdp changes second we show that in order to fully gauge the welfare consequences and the political feasibility of government debt changes it is crucial to consider the transitional dynamics between stationary equilibria our results therefore have important implications for the design of debt reduction policies since the skewed wealth distribution generates a large fraction of borrowing constrained households a public debt reduction should be non linear such that the tax burden is postponed into the future

insurance and opportunities a welfare analysis of labor market risk abstract using a model with constant relative risk aversion preferences endogenous labor supply and partial insurance against idiosyncratic wage risk this paper provides an analytical characterization of three welfare effects a the welfare effect of a rise in wage dispersion b the welfare gain from completing markets and c the welfare effect from eliminating risk the analysis reveals an important trade off for these welfare calculations on the one hand higher wage uncertainty increases the cost associated with missing insurance markets on the other hand greater wage dispersion presents opportunities to raise aggregate productivity by concentrating market work among more productive workers welfare effects can be expressed in terms of the underlying parameters defining preferences and wage risk or alternatively in terms of changes in observable second moments of the joint distribution over individual wages consumption and hours

issues of paradigm ideology and democracy in sustainability assessment does the challenge of sustainable development sd have implications for our approches to decision making and evaluation do we need specific sustainability assessment models sams and if so what

efficiency and equality in a simple model of efficient unemployment insurance abstract this paper describes the efficient allocation of consumption and work effort in an economy in which workers face idiosyncratic employment risk and considerations of moral hazard prevent full insurance we impose a lower bound on the expected discounted utility that can be assigned to any agent from any date onward and show with this feature added that the efficient unemployment insurance scheme induces an invariant cross sectional distribution of individual entitlements to utility the paper thus provides a simple prototype model suited to the study of the normative question what is the trade off between equality and efficiency in resource allocation journal of economic literature classification numbers d31 d63 d82 j65

an institutional analysis of methods for environmental appraisal abstract this paper focuses on a set of issues when choosing between methods for environmental appraisal approaches like cost benefit analysis contingent valuation multicriteria analysis and deliberative methods are based on very different assumptions concerning the characteristics of environmental resources the capacities of the individuals involved and the role the methods play in framing the process the present paper views environmental appraisal methods as institutional structures they are seen as rules concerning a who should participate and in which capacity b what is considered data and which form data should take and c rules about how a conclusion is reached specifically the choice of method defines the logic of the appraisal process and next influences the output while cost benefit analysis is based on the assumption of individual rationality deliberative methods assume that individuals can act according to social rationality the first part of the paper is devoted to clarifying what institutions are and their role in the valuation process second the main features of environmental or ecosystem services and the demands they raise for decision making are described a general framework for evaluating appraisal methods is then developed finally this structure is elaborated in more detail as a basis for deciding over the choices of methods in the case of evaluating ecosystem services a set of unresolved issues are identified especially related to how the choice of appraisal methods themselves should be instituted

3 d sustainability an approach for priority setting in situation of conflicting interests towards a sustainable development abstract this paper aims to provide a new approach to objectively assess hierarchies and priority setting in the relationship between environmental social and economic sustainability within sustainable development after a literature review several widely used conceptual figures diagrams describing this relationship were assessed using swot analyses in order to identify the major weaknesses in these pictorial descriptions based on the findings a new concept called 3 d sustainability has been developed and is presented visually as well as is described in the text this concept introduces and ranks criteria for the assessment of hierarchies within and conflicts of interests between social environmental and economic sustainability the three dimensions of sustainability these criteria are applied to several existing hierarchies and solutions to conflicts of interests based on the swot analyses the main shortcomings of the widely used conceptual figures were identified as 1 misinterpretation of embeddings 2 misjudgement of equity between the three dimensions of sustainability 3 a lack of expression of limitations and 4 lack of adequate decision support these shortcomings are overcome theoretically and in practice by 3 d sustainability a slightly more complex but conceptually richer figure than the widely used conceptual figures assessed in particular the shift of the burden of proof within the three sustainability dimensions is argued as a main solution the application of the criteria of 3 d sustainability to several real examples indicates its usefulness in decision support while justifying more sustainable hierarchies and solutions in the settlement of conflicts of interests within the three sustainability dimensions

green circular bio economy a comparative analysis of sustainability avenues despite their evidently different assumptions and operationalization strategies the concepts of circular economy green economy and bioeconomy are joined by the common ideal to reconcile economic environmental and social goals the three concepts are currently mainstreamed in academia and policy making as key sustainability avenues but a comparative analysis of such concepts is missing the aim of this article is thus to comprehensively analyse the diversity within and between such concepts the results are drawn from a bibliometric review of almost two thousand scientific articles published within the last three decades coupled with a conceptual analysis we find that for what concerns environmental sustainability green economy acts as an umbrella concept including elements from circular economy and bioeconomy concepts e g eco efficiency renewables as well as additional ideas e g nature based solutions in particular circular economy and bioeconomy are resource focused whereas in principle green economy acknowledges the underpinning role of all ecological processes regarding the social dimension green economy is more inclusive of some aspects at local level e g eco tourism education while there is an emerging discussion in bioeconomy literature around local processes in terms of biosecurity and rural policies when considering weak strong sustainability visions all concepts remain limited in questioning economic growth by comparing the different sustainability strategies promoted by these concepts we do not advocate for their substitutability but for their clarification and reciprocal integration the findings are discussed in light of the concepts synergies and limits with the purpose to inform research and policy implementation

between ostrom and nordhaus the research landscape of sustainability economics abstract we survey the emerging research area of sustainability economics through a quantitative full text analysis of peer reviewed journal publications from 1987 to 2013 to identify relevant contributions we draw on existing definitions of sustainability economics for a keyword based identification strategy a combined focus on a the human nature relationship b the long term uncertain future c normative orientation towards sustainability and d economic analysis our analysis of a random subsample of 343 relevant papers reveals that i sustainability economics is a rapidly developing research area ii while theoretical contributions shaped the area in earlier years applied work now constitutes the largest share of contributions iii the research landscape can be clustered into eleven research clusters these range from participatory governance of social ecological systems associated with the work of elinor ostrom to questions of intertemporal allocation and distribution applied to climate economics associated with the work of william nordhaus iv the research area is broad in scope and heterogeneous and there is relatively little interaction between important clusters v relevant contributions are published in more than 100 journals ten journals publish half of all contributions led by ecological economics and 40 appear in non economics journals underscoring the importance of interdisciplinary dialogue

can payments for environmental services help reduce poverty an exploration of the issues and the evidence to date from latin america summary this paper examines the main ways in which payments for environmental services pes might affect poverty pes may reduce poverty mainly by making payments to poor natural resource managers in upper watersheds the extent of the impact depends on how many pes participants are in fact poor on the poors ability to participate and on the amounts paid although pes programs are not designed for poverty reduction there can be important synergies when program design is well thought out and local conditions are favorable possible adverse effects can occur where property rights are insecure or if pes programs encourage less labor intensive practices 2004 elsevier ltd all rights reserved

intertemporal substitution in labor supply evidence from micro data the sensitivity of the supply of labor to intertemporal variation in the wage is an important issue in macroeconomics the analysis of social security and pensions and the study of life cycle patterns of work this paper explores two approaches to the measurement of intertemporal substitution that have appeared in the literature the first approach is to use consumption to control for wealth and unobserved expectations about future wages in the labor supply equation the second approach is to estimate a first difference equation for hours in which labor supply from the previous period serves as a control for wealth and wage expectations the results indicate that intertemporal substitution elasticity for married men is positive but small

an economist looks at suicide terrorism suicide terrorism has an economic aspect the organisation of a suicide mission requires an incentive a voluntary transaction and a contract that is enforceable by the parties to it a terrorist faction that competes for power in a community that is both oppressed and oppressive provides young people with an incentive to invest in an identity that is rendered more valuable by death suicide attacks are then the outcome of a voluntary agreement between the faction and the young person to trade life for identity the institution of the living martyr renders the agreement privately enforceable thus suicide terrorism is the outcome of an individual rational choice there are some implications for counter measures

rational bubbles and public debt policy a quantitative analysis abstract do empirically plausible dynastic general equilibrium models admit bubbles and ponzi schemes under rational expectations contrary to conventional wisdom the answer is affirmative the central assumption is that current securities do not represent claims to all future profits calibrating the model to u s data we find that it is consistent with the presence of rational bubbles the observed level of public debt is entirely a ponzi scheme there are large welfare gains from eliminating bubbles on private assets and lodging all the non fundamental asset value in public debt paying off public debt benefits only a small group of wealthy individuals

fiscal policy in a tractable liquidity constrained economy we analyse the effects of fiscal expansions when public debt is used as liquidity by the private sector aggregate shocks are introduced into an incomplete market economy where heterogenous agents face occasionally binding borrowing constraints and store wealth to smooth out idiosyncratic income fluctuations debt financed increases in spending facilitate self insurance by bond holders and may crowd in private consumption they also loosen the borrowing constraints faced by firms thereby raising labour demand and possibly the real wage whether private consumption and wages rise or fall ultimately depends on the relative strengths of the liquidity and wealth effects that arise following the shock

poverty risks and national parks policy issues in conservation and resettlement summary is the conflict between biodiversity conservation and poverty reduction which frequently arises in park creation programs insoluble the authors report empirical evidence from 12 case studies from six countries which are analyzed through the conceptual lens of the impoverishment risks and reconstruction model for involuntary resettlement the research concludes conservatively that parks in the congo basin have already displaced and impoverished about 120 150 000 people and that more will be displaced if this approach continues despite its deleterious outcomes the authors argue that the park establishment strategy predicated upon compulsory population displacement has exhausted its credibility and compromised the cause of biodiversity conservation by inflicting aggravated impoverishment on very large numbers of people they recommend that the concerned governments should desist using the eviction approach the alternative course proposed by the authors is to replace forced displacements with a pro poor strategy that pursues double sustainability to protect both the biodiversity and people s livelihoods at the same time 2006 elsevier ltd all rights reserved

insurance and opportunities the welfare implications of rising wage dispersion this paper develops a series of heterogeneous agents economies in order to characterize analytically the welfare implications of changes in the uncertainty in individual labor productivity we perform two types of welfare calculations first we compute the welfare consequences of a rise in labor market risk given a particular asset market structure complete markets incomplete markets autarky second we compute the expected gain from completing markets starting from autarky or incomplete markets for a given level of wage dispersion we are able to derive intuitive closed form expressions for these welfare eects which depend only on preference parameters and the size of the change in wage dispersion a higher level of productivity dispersion has always two eects it tends to reduce welfare in presence of partial insurance but it also tends to improve production opportunities in presence of flexible labor supply we can separate analytically the insurance and the opportunity components we quantify the welfare consequences of the rise in wage inequality observed in the united states over the past three decades as roughly 3 of lifetime consumption moreover we calculate that completing the asset markets given the current level of inequality would lead to a welfare improvement equivalent to 35 of lifetime consumption

tax and education policy in a heterogeneous agent economy what levels of redistribution maximize growth and efficiency this paper studies the effects of progressive income taxes and education finance in a dynamic heterogeneous agent economy such redistributive policies entail distortions to labor supply and savings but also serve as partial substitutes for missing credit and insurance markets the resulting tradeoffs for growth and efficiency are explored both theoretically and quantitatively in a model that yields complete analytical solutions progressive education finance always leads to higher income growth than taxes and transfers but at the cost of lower insurance overall efficiency is assessed using a new measure that properly reflects aggregate resources and idiosyncratic risks but unlike a standard social welfare function does not reward equality per se simulations using empirical parameter estimates show that the efficiency costs and benefits of redistribution are generally of the same order of magnitude resulting in plausible values for the optimal rates aggregate income and aggregate welfare provide only crude lower and upper bounds around the true efficiency tradeoff

the history of ecosystem services in economic theory and practice from early notions to markets and payment schemes article i nfo this paper reviews the historic development of the conceptualization of ecosystem services and examines critical landmarks in economic theory and practice with regard to the incorporation of ecosystem services into markets and payment schemes the review presented here suggests that the trend towards monetization and commodification of ecosystem services is partly the result of a slow move from the original economic conception of nature s benefits as use values in classical economics to their conceptualization in terms of exchange values in neoclassical economics the theory and practice of current ecosystem services science are examined inthelight ofthis historicaldevelopment from thisreview we conclude thatthefocus onmonetary valuation and payment schemes has contributed to attract political support for conservation but also to commodify a growing number of ecosystem services and to reproduce the neoclassical economics paradigm and the market logic to tackle environmental problems

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

environment justice and the capability approach in recent years several studies have attempted to combine the capabilities approach with sustainable development however critics have pointed out that although the capability approach takes the environment into account it has its shortcomings for not being a complete ethical theory our article attempts to go beyond these criticisms and show that the capabilities approach provides a good analytical framework for an environmental justice approach

public versus private provision of liquidity is there a trade off abstract to what extent is public debt private liquidity much policy advice given in the aftermath of the financial crisis rests on the assumption that increasing public debt relaxes borrowing constraints of private households this is the case for ad hoc debt limits which are exogenous to public policy instead if debt limits are fully endogenous as e g in the case of the natural borrowing limit public debt has no impact we assume that borrowing limits arise because of limited contract enforceability and are therefore determined as equilibrium outcomes using an incomplete markets economy in which households are subject to uninsurable earnings shocks we show that public debt provides some liquidity but less so than it would if constraints were imposed ad hoc we show that generating borrowing constraints as an equilibrium outcome substantially alters the answers to other important questions such as for the welfare effects of government debt or its impact on real economic activity

why do governments end up with debt short run effects matter this paper reconsiders the impact of public debt in an economy with heterogeneous households and incomplete markets to emphasize the short run effects of an increase in public debt as compared to models that rest on steady state analysis we show that the welfare gains of a public debt increase are substantially higher when transitional dynamics are accounted for the additional debt issue allows for a temporary reduction in the income tax rate which stimulates labor supply and generates an overshooting of the interest rate the short run gains create a temptation to deviate toward higher levels of debt debt increases continue to generate welfare gains even when debt is considerably higher than its long run optimal level

critical ethical naturalism and the transformation of economics in this article i shall argue that critical ethical naturalism an ethical position elaborated by tony lawson can help understand lawson s critique of modern mainstream economics according to critical ethical naturalism human action should be concerned with removing obstacles that lie in the way of human development and flourishing the attempt of transforming economics into a discipline that contributes to human development rather than being an obstacle to such a development can be seen as an exercise driven by critical ethical naturalism albeit in a more implicit way in lawson s earlier writings and in a more explicit way in more recent writings but the significance of critical ethical naturalism as elaborated by lawson goes well beyond the problem of transforming economics and so i shall also highlight some more general implications of this ethical position before addressing the specific problem of transforming economics to do so i will first present lawson s critical ethical naturalism while showing the relevance of his social ontology for the study of ethics at various levels of generality including meta ethics ethical theory and applied ethics

a basis for sraffian ecological economics a comment on martins ecosystems strong sustainability and the classical circular economy martins 2016 recently emphasized the role that classical economics can play in building sustainability economics in this respect he uses sraffa s theory of value and sen and nussbaum s capability theory to support his argument my comment focuses on the part of his article concerning sraffa s theory and aims to refine some of martins claims in order to avoid misunderstandings about the possibilities offered by sraffa s theory

incomplete markets liquidation risk and the term structure of interest rates we analyse the term structure of interest rates in a general equilibrium model with incomplete markets borrowing constraint and positive net supply of government bonds uninsured idiosyncratic shocks generate bond trades while aggregate shocks cause uctuations in the trading price of bonds long bonds command a liquidation risk premium over short bonds because they may have to be liquidated before maturity following a bad idiosyncratic shock precisely when their resale value is low due to the simultaneous occurrence of a bad aggregate shock our framework endogenously generates limited cross sectional wealth heterogeneity among the agents despite the presence of uninsured idiosyncratic shocks which allows us to characterise analytically the shape of the entire yield curve including the yields on bonds of arbitrarily long maturities agents desire to hedge the idiosyncratic risk together with their fear of having to liquidate long bonds at unfavourable terms imply that a greater bond supply raises the level of the yield curve while an increase in the relative supply of long bonds raises its slope

discursive synergies for a great transformation towards sustainability pragmatic contributions to a necessary dialogue between human development degrowth and buen vivir abstract there is a growing awareness that a whole societal great transformation of polanyian scale is needed to bring global developmental trajectories in line with ecological imperatives the mainstream sustainable development discourse however insists in upholding the myth of compatibility of current growth based trajectories with biophysical planetary boundaries this article explores potentially fertile complementarities among trendy discourses challenging conventional notions of un sustainable development human development degrowth and buen vivir and outlines pathways for their realization human development presents relative transformative strengths in political terms while degrowth holds keys to unlocking unsustainable material structural entrenchments of contemporary socio economic arrangements and buen vivir offers a space of cultural alterity and critique of the euro atlantic cultural constellation the weaknesses or blind spots achilles heels of each discourse can be compensated through the strengths of the other ones creating a dialogical virtuous circle that would open pathways towards a global new great transformation as one of the main existing platforms for pluralist and strong sustainability discussions ecological economics is in a privileged position to deliberately foster such strategic discursive dialogue a pathway towards such dialogue is illuminated through a model identifying and articulating key discursive docking points

labor market trends and the changing value of time abstract during the past two decades households experienced increases in their average wages and expenditures alongside with divergent trends in their wages expenditures and time allocation we develop a model with incomplete asset markets and household heterogeneity in market and home technologies and preferences to account for these labor market trends and assess their welfare consequences using micro data on expenditures and time use we identify the sources of heterogeneity across households document how these sources have changed over time and perform counterfactual analyses given the observed increase in leisure expenditures relative to leisure time and the complementarity of these inputs in leisure technology we infer a significant increase in the average productivity of time spent on leisure the increasing productivity of leisure time generates significant welfare gains for the average household and moderates negative welfare effects from the rising dispersion of expenditures and time allocation across households

consumption and risk sharing over the life cycle a striking feature of u s data on income and consumption is that inequality increases with age this paper asks if individual specific earnings risk can provide a coherent explanation we find that it can we construct an overlapping generations general equilibrium model in which households face uninsurable earnings shocks over the course of their lifetimes earnings inequality is exogenous and is calibrated to match data from the u s panel study on income dynamics consumption inequality is endogenous and matches well data from the u s consumer expenditure survey the total risk households face is decomposed into that realized before entering the labor market and that realized throughout the working years in welfare terms the latter is found to be more important than the former

the horizontally s shaped laffer curve in a neoclassical growth model with incomplete markets and heterogeneous liquidity constrained agents the properties of the laffer curve depend on whether debt or transfers are adjusted to balance the government budget constraint the laffer curve conditional on public debt is horizontally s shaped two opposing forces explain this result first when government wealth increases the fiscal burden declines calling for lower tax rates second because the interest rate decreases when government wealth increases fiscal revenues may also decline calling for higher taxes for sufficiently negative government debt the second force dominates leading to the odd shape of the laffer curve conditional on debt

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

optimal taxation of capital income in general equilibrium with infinite lives this paper analyzes the optimal tax on capital income in general equilibrium models of the second best agents have infinite lives and utility functions which are extensions from the koopmans form the population is heterogeneous the important property of the models is the equality between the social and the private discount rates in the long run i find that the optimal tax rate is zero in the long run for a special case of additively separable utility functions i then determine the tax rates along the dynamic path and conditions that are sufficient for the local stability of the steady state

the risk free rate in heterogeneous agent incomplete insurance economies abstract why has the average real risk free interest rate been less than one percent the question is motivated by the failure of a class of calibrated representative agent economies to explain the average return to equity and risk free debt i construct an economy where agents experience uninsurable idiosyncratic endowment shocks and smooth consumption by holding a risk free asset i calibrate the economy and characterize equilibria computationally with a borrowing constraint of one year s income the resulting risk free rate is more than one percent below the rate in the comparable representative agent economy

evidence on the insurance effect of redistributive taxation copyright 2010 by the president and fellows of harvard college and the massachusetts institute of technology

spite and development in a wide variety of settings spiteful preferences would constitute an obstacle to cooperation trade and thus economic development this paper shows that spiteful preferences the desire to reduce another s material payoff for the mere purpose of increasing one s relative payoff are surprisingly widespread in experiments conducted in one of the least developed regions in india uttar pradesh in a one shot trust game the authors find that a large majority of subjects punish cooperative behavior although such punishment clearly increases inequality and decreases the payoffs of both subjects in experiments to study coordination and to measure social preferences the findings reveal empirical patterns suggesting that the willingness to reduce another s material payoff either for the sake of achieving more equality or for the sake of being ahead is stronger among individuals belonging to high castes than among those belonging to low castes because extreme social hierarchies are typically accompanied by a culture that stresses status seeking it is plausible that the observed social preference patterns are at least partly shaped by this culture thus an exciting question for future research is the extent to which different institutions and cultures produce preferences that are conducive or detrimental to economic development

linking daly s proposition to policymaking for sustainable development indicators and pathways abstract the statement that in the full world increasing the ultimate efficiency expressed as service throughput is the necessary condition for humanity to achieve high levels of well being within ecological limits is honoured as daly s proposition in this paper the purpose of this paper is to make daly s proposition effective guidance for policymaking related to sustainable development for this aim this paper puts forward the indicator ecological well being performance which is composed of the human development index and the ecological footprint to measure the ultimate efficiency furthermore by means of matrix analysis and factor decomposition analysis the respective pathways for countries at different stages of development to make the sustainable development transition were discussed the g20 countries were taken as the cases to conduct the research the empirical results show that improvements in well being and increases in throughput level are not necessarily positively related the relationship between the two depends on how countries control throughput levels and improve the ecological well being performance which also explains different performances on the sustainable development transition in a simple way this contribution provides new methods and criteria to track and evaluate national performance on sustainable development by referring to daly s original theories

a review of the stern review on the economics of climate change how much and how fast should we react to the threat of global warming the stern review argues that the damages from climate change are large and that nations should undertake sharp and immediate reductions in greenhouse gas emissions an examination of the review s radical revision of the economics of climate change finds however that it depends decisively on the assumption of a near zero time discount rate combined with a specific utility function the review s unambiguous conclusions about the need for extreme immediate action will not survive the substitution of assumptions that are consistent with today s marketplace real interest rates and savings rates

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

the classical circular economy sraffian ecological economics and the capabilities approach abstract here i provide some further elaborations on the idea of a classical circular economy and its articulation with the capabilities approach this enables addressing some important questions raised by yoann verger 2017 when commenting on the idea of a classical circular economy as outlined in martins 2016 while advancing the basis for a sraffian ecological economics to understand the connections between sraffa s economic theory and the classical circular economy discussed by verger 2017 an essential aspect to be addressed here is sraffa s interpretation of the classical conception of the wage which can be fruitfully addressed in terms of the capabilities approach as suggested by vivian walsh 2000

optimal public debt redux abstract we examine the role played by government investment in infrastructure in determining the optimal quantity of public debt in a heterogeneous agent economy with incomplete insurance markets calibrating our model to the key aggregate and distributional moments of the u s economy for the period 1990 2015 we show that i the inclusion of infrastructure and ii transitional dynamics between stationary states critically affect the characterization of the optimal level of public debt our results indicate that the inclusion of public infrastructure in the model specification implies a lower optimal debt level relative to the specification without infrastructure both when comparing stationary equilibria and when accounting for transitional dynamics when welfare comparisons are made by comparing stationary equilibria we find that it is optimal for the government to accumulate assets public surplus however once transitional dynamics are accounted for accumulating debt becomes optimal with the optimal share implied by our model being significantly higher than the average public debt gdp ratio for the u s observed during our sample period

the role of automatic stabilizers in the u s business cycle most countries have automatic rules in their tax and transfer systems that are partly intended to stabilize economic uctuations this paper measures how eective they are at lowering the volatility of u s economic activity we identify seven potential stabilizers in the data and include four theoretical channels through which they may operate in a business cycle model calibrated to the u s data the model is used to compare the volatility of output in the data with counterfactuals where some or all of the stabilizers are shut down our rst nding is that proportional taxes like sales property and corporate income taxes contribute little to stabilization our second

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

exploring the links between equity and efficiency in payments for environmental services a conceptual approach this paper addresses the relationship between equity and efficiency in pes schemes from a conceptual point of view emphasis is placed on the role of the institutional setting social perceptions about economic fairness or distributive justice of the payments uncertainty and interactions between agents including power relations we introduce the heuristic concept of the efficiency equity interdependency curve to illustrate potential combinations between equity and efficiency that may be theoretically possible the paper argues that different types of institutional factors determine which equity efficiency combinations may be potentially feasible influence the actual combination that will be achieved on the ground and condition possible changes in that combination due to exogenous factors by stressing the role of institutional aspects in shaping the equity efficiency relationship the paper attempts to go beyond the dominant coasean vision of pes