complementarity of socio economic and emergy evaluation of agricultural production systems the case of slovenian dairy sector agriculture is a complex system in which the economic principles of production are directly intertwined with its biological and ecological characteristics the paper investigates synergetic potentials of multiple criteria and multiple perspective evaluation of agricultural activity through a study of the dairy sector in slovenia socio economic and emergy evaluation was performed on nine farm types formulated to represent the diversity of the country s dairy sector the results indicate larger discrepancies in the performance of the farm types when defined by socio economic or emergy based indicators standard socio economic evaluation favours larger conventional systems that are cost efficient and financially independent emergy analysis however favours less productive organic farms which show greater ability to exploit free local resources and produce less stress on the local environment socio economic and emergy indicators show that small conventional farm types are the poorest performers overall analysis of emergy flows reveals for all farm types a high dependency on the wider socio economic system suggesting that within the current economic system agriculture itself has little ability to affect its sustainability the paper suggests a complementarity in the evaluation approaches their joint application can improve the quality of the decision making process in various stages of planning in agriculture and land use

trust and stock price crash risk evidence from china abstract this paper examines the impact of social trust on stock price crash risk social trust measures the level of mutual trust among the members of a society using a large sample of chinese listed firms for the 2001 2015 period we find that firms headquartered in regions of high social trust tend to have smaller crash risks this result is robust to a battery of sensitivity tests and is more prominent for state owned enterprises soes for firms with weak monitoring and for firms with higher risk taking moreover we observe that firms in regions of high social trust are associated with higher accounting conservatism and fewer financial restatements our study suggests that social trust is an important variable that is omitted in the literature investigating the predictors of stock price crashes

technology transfer to developing countries through engineering firms the canadian experience abstract this article presents the results of an empirical study conducted on some 50 major international projects conducted by the 36 largest canadian consulting engineering firms in developing countries the study concludes that contrary to the neoclassical assumption of cost free information adoption technology transfer costs are positive and mostly concentrated in the area of training it also finds that successful transfers involves a specific set of capabilities and are usually conducted through joint ventures between the transferor and the transferee that successful transferees often conduct research and development do not suffer from host government restrictions and are not usually located in africa

the value base of water governance a multi disciplinary perspective some scholars promote water governance as a normative concept to improve water resources management globally while others conceive of it as an analytical term to describe the processes systems and institutions around the management of water resources and water supply critics often highlight how specific water governance scenarios fail to deliver socially desirable outcomes such as social justice or environmental sustainability while water governance is often perceived as a technical matter its conceptual and practical components are in fact based on multiple values that nonetheless often remain implicit the present paper seeks to uncover this value base and discusses existing research on values from multiple perspectives using material from economics philosophy psychology and other social sciences in different disciplines values can be understood as fundamental guiding principles governance related values or as values assigned to water resources together they shape complex relationships with water governance which from an analytical perspective is understood as a combination of policy politics and polity introducing a new conceptual framework this study seeks to provide a theoretical foundation for empirical research on water governance processes and conflicts

developing country fisheries and technical efficiency the java sea purse seine fishery the analysis of technical efficiency in developing country agriculture is well established but has been overlooked for developing country commercial marine fisheries policies raising technical efficiency in agriculture are viewed as uniformly positive but are a mixed blessing in fisheries due to the open access property right and common pool resource this study explores this contradiction and policies aimed to promote sustainable development and management of renewable common pool resources through a case study of the java sea purse seine fishery season of the year rather than fisher or vessel characteristics primarily determines technical efficiency the results are contrasted with developing country agriculture and conclusions drawn for fisheries development strategies

a social and environmental approach to microfinance credit scoring microfinance institutions provide loans to low income individuals their credit scoring systems if they exist are strictly financial although many institutions consider the social and environmental impact of their loans they do not incorporate formal systems to estimate these social and environmental impacts this paper proposes that their creditworthiness evaluations should be coherent with their social mission and accordingly should estimate the social and environmental impact of microcredit thus a decision support system to facilitate microcredit granting is proposed using a multicriteria evaluation the assessment of social impact is performed by calculating the social net present value the system captures credit officers experience and addresses incomplete and intangible information the model has been tested in a microfinance institution the paper shows how a small institution can include social and environmental issues in its decision making systems to evaluate credit applications a gap in the preferences was found between members of the board who are socially driven and managers and credit officers who are financially drifted this mission drift was corrected the approach followed contributed to creating a culture of social and environmental assessment within the institution especially among credit officers thereby translating microfinance institutions social mission into numbers

short interest and stock price crash risk abstract using a large sample of u s public firms we find robust evidence that short interest is positively related to one year ahead stock price crash risk the evidence is consistent with the view that short sellers are able to detect bad news hoarding by managers additional findings show that the positive relation between short interest and future crash risk is more salient for firms with weak governance mechanisms excessive risk taking behavior and high information asymmetry between managers and shareholders empirical support is provided showing that the relation between short interest and crash risk is driven by bad news hoarding

the epistemological challenge of self modifying systems governance and sustainability in the post normal science era abstract in this paper we conceptualize the difference among risk uncertainty and ignorance and focus on a theoretical analysis of modeling relation applied to self modifying systems within the framework of post normal science we provide an overview of the concept of risk and uncertainty elaborating on the work of f knight we extend r rosen s theory of modeling relation originally aimed in natural science to the issue of science for governance knight s analysis of risk and uncertainty can be used to generate a list of various types of uncertainty involved in every stage to model self modifying systems such a list is relevant for gaining insight into the issue of science for governance it is important for those attempting to model sustainability especially in the field of ecological economics to be aware of the theoretical difference between models and similes for self modifying systems

quantification of interdependencies between economic systems and ecosystem services an input output model applied to the seine estuary abstract the aim of this paper is to assess the possible contribution of an input output model towards two of the basic principles of the sustainability strategy of integrated coastal zone management iczm and post normal science according to these principles decision support tools should offer a holistic perspective and handle high uncertainty the difficulties in reaching sustainability are due partly to the prevailing use of narrow system boundary tools that are non holistic consequently they fail to capture important ecosystem services and ignore interdependencies between them to comply with the basic principles our method allows environmental assets to be evaluated in multiple units and integrates results from recent researches in natural sciences both enable coverage of interdependencies between ecosystem services thereby we enlarge input output modelling from the two conventional ecosystem services of sink and provisioning to the most vital ones the supporting services an application to the seine estuary addresses the impacts of maritime transportation infrastructures on nursery habitats for commercial fish the ecosystem services covered are life support and resource provisioning our results show that the restoration of a total of 73 7 km 2 of nursery areas over the period 2004 2015 would result in a stock of sole in 2015 that exceeds the business as usual scenario by 44 2 uncertainty range 35 9 69 9 in spite of high restoration costs the negative macro economic impact is very low however on the sector level a trade off results between nurseries and three economic sectors the quantification of such trade offs in our model is particularly useful to public participation in decision making

beyond gdp an overview of measurement issues in redefining wealth in the last decades a growing quantity of literature has been written about concepts such as quality of life and well being as a proxy for evaluating societal prosperity and progress this paper analyses the theoretical foundations and the empirical validity of multi dimensional technical tools that can be used for well being measurement there is no doubt that there is a lot of complexity and fuzziness inherent in multi dimensional concepts such as well being a possible reduction of this complexity a pre condition for policy making introduces the problem of the descriptors used indicators and indexes in a multi dimensional framework multi criteria evaluation is a consistent approach for the construction of so called composite indicators often some individual indicators improve while others deteriorate this is the classical conflictual situation dealt with in multi criteria evaluation in particular non compensatory methods are quite relevant since compensability implies complete substitutability between different types of capital uncertainty and sensitivity analysis can estimate the robustness of the results obtained and help the framing of the debate around the conceptual framework used that is which representation of reality and thus which societal values and interests has been considered

institutional investor stability and crash risk monitoring versus short termism this study tests two opposing views of institutional investors monitoring versus short termism we present evidence that institutional investor stability is negatively associated with 1 year ahead stock price crash risk consistent with the monitoring theory of institutional investors but not the short termism theory our findings are shown to be robust to alternative empirical specifications estimation methods and endogeneity concerns in addition we find that institutional ownership by public pension funds bank trusts investment companies and independent investment advisors is significantly negatively positively associated with future crash risk consistent with findings that pension funds more actively monitor management than other types of institutions

policy incentives for switchgrass production using valuation of non market ecosystem services abstract this study presents a linear profit model with combined economic and environmental factors for a switchgrass for biofuels agricultural system in the southeastern u s the objectives are to establish conversion to switchgrass thresholds for various market prices and identify policy incentives that would ensure economic profit while also maximizing environmental benefits carbon sequestration displacement of fossil fuels and minimizing negative impacts global warming potential nitrate loss weighting factors are chosen to represent incentives and penalties by assigning value to the impacts with no other incentives switchgrass market prices of at least 51 and 58 dton would be needed in order to make a profitable switch from corn conservation reserve program crp lands and cotton respectively at a mid range offering of 50 dton feasible carbon credit prices of 3 8 23 per metric tonne co 2 e would incentivize conversion from corn crp or cotton respectively similarly a water quality penalty of 0 20 3 2 per kilogram no 3 n leached would incentivize the same conversions with resultant watershed improvement at a lower price of 30 dton switchgrass incentives based on valuation of ecosystem services begin to exceed feasible ranges of these valuations

non compensatory non linear composite indicators for ranking countries a defensible setting composite indicators or indexes are very common in economic and business statistics for benchmarking the mutual and relative progress of countries in a variety of policy domains such as industrial competitiveness sustainable development globalization and innovation the proliferation of the production of composite indicators by all the major international organizations is a clear symptom of their political importance and operational relevance in policy making as a consequence improvements in the way these indicators are constructed and used seem to be a very important research issue from both the theoretical and operational points of view this article aims at contributing to the improvement of the overall quality of composite indicators or indexes by looking at one of their technical weaknesses that is the aggregation convention used for their construction for this aim we build upon concepts coming from multi criteria decision analysis measurement theory and social choice we start from the

can purse seiners target yellowfin tuna both purse seine and longline fleets exploit yellowfin tuna in the western pa cific region management options available to achieve the optimal allocation of the yellowfin stock depend on whether purse seiners can con trol the species mix of their catch by targeting their fishing effort a fishing strategy to target effort on juvenile yellowfin is discussed and a supply model based on a revenue maximizing framework is estimated using data of japanese and u s purse seine vessels in papua new guinea the hypothesis of targeting is con firmed for the more modern u s fleet but not for the more traditional japanese vessels jel q22

an alternative approach to monetary aggregation in dea this paper proposes a set of alternative dea based money indices that are proved to be both theoretically and empirically competing monetary aggregates since they perform as good as the divisia aggregates based on all the results concerning causality forecasting and money demand we conclude that dea money aggregates prove to be at least competing alternatives to the divisia aggregates and hence suggest that these new aggregates may be considered along with the existing weighted monetary aggregates like the divisia ones given the inherent benefit of the doubt weighting mechanism underlying the dea models where the optimal weight assigned by dea to each monetary asset reflects the ongoing financial innovation and the reserve bank of india s policy priority in the distribution of total liquidity we feel that the dea money indices can truly capture the liquidity better with ongoing financial innovations in the economy

market and political regulatory perspectives on the recent accounting scandals not surprisingly the recent accounting scandals look different when viewed from the perspectives of the political regulatory process and of the market for corporate governance and financial reporting we do not have the opportunity to observe a world in which either market or political regulatory processes operate independently and the events are recent and not well researched so untangling their separate effects is somewhat conjectural this paper offers conjectures on issues such as what caused the scandalous behavior why was there such a rash of accounting scandals at one time who killed arthur andersen the securities and exchange commission or the market did fraudulent accounting kill enron or just keep it alive for too long what is the social cost of financial reporting fraud does the united states in fact operate a principles based or a rules based accounting system was there market failure or was there regulatory failure or both was the sarbanes oxley act a political and regulatory overreaction does the united states follow an ineffective regulatory model

social multi criteria evaluation methodological foundations and operational consequences in order to address contemporary issues economics and decision sciences need to expand their empirical relevance by introducing more and more realistic thus more complex assumptions in their models one of the most interesting research directions in the field of public economics is the attempt to introduce political constraints interest groups and collusion effects explicitly j j laffont incentives and political economy 2000 the main argument developed here is the proposal of the concept of social multi criteria evaluation smce as a possible useful framework for the application of social choice to the difficult policy problems of our millennium where as stated by funtowicz and ravetz facts are uncertain values in dispute stakes high and decisions urgent this paper starts from the following main questions 1 why social multi criteria evaluation 2 how should such an approach be developed the foundations of smce are set up by referring to concepts from complex system theory and philosophy such as reflexive complexity post normal science and incommensurability to give some operational guidelines on the application of smce basic questions to be answered are 1 how is it possible to deal with technical incommensurability 2 how can we deal with the issue of social incommensurability to answer these questions using theoretical considerations and lessons learned from real world case studies is the main objective of the present article

a participatory approach to sustainable energy strategy development in a carbon intensive jurisdiction the case of nova scotia the need for governments to reduce the exposure of energy consumers to future increases in fossil fuel prices places urgent pressure on policy makers to deliver fundamental transformations in energy strategies particularly in jurisdictions with high dependency on fossil fuel sources dorian et al 2006 this transformation is unlikely without a high level of stakeholder engagement in the policy development process this paper describes two policy development processes recently undertaken in nova scotia in which the inclusion of stakeholder views was central to the approach the first delivered a new institutional framework for electricity energy efficiency involving the inception of an independent performance based administrator the second required the delivery of a strategy to significantly increase renewable energy generation in the province it involved recommendations for changes in institutional arrangements financial incentives and technological options this process was followed by new commitments to renewable energy developments new infrastructure for the importation of hydro electricity and the announcement of fits for ocean energy in both cases recommendations were made by an independent academic institution and the government responded directly to a majority of recommendations the paper concludes with a discussion of lessons learned and the implications for future energy policy making in carbon intensive jurisdictions

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

the challenge of measuring biofuel sustainability a stakeholder driven approach applied to the french case measuring biofuel sustainability requires dealing with a wide variety of complex and conflicting values at stake consequently the biofuel capacity to contribute to one specific value cannot lead to any absolute conclusion about the overall sustainability of biofuel the scope of the sustainability concept may vary depending on individuals preferences the time scale and the geographical region based on the 5 pillars sustainability concept that includes social economic environmental legal and cultural considerations the present study proposes to assess several biofuel sustainability options for france by 2030 through a stakeholder driven approach rather than seeking to reach a consensus our approach allows us to capture the wide diversity of stakeholders perspectives and preferences french stakeholders perceive 22 different sustainability criteria for biofuels with a very low level of agreement between the different segments of professions feedstock producers biofuel producers refining industry fuel distributors car manufacturers end users government and ngos in order to operationalize the sustainability assessment a set of indicators has been identified with stakeholders that allows us to measure the capacity of biofuels to fulfill each of their criteria seventeen biofuel options were assessed with regards to economic social environmental cultural and legal considerations allowing the identification of the strengths and weaknesses of each biofuel

participative multi criteria analysis for the evaluation of water governance alternatives a case in the costa del sol malaga this paper presents the results of a participatory multi criteria evaluation of urban water supply alternatives in costa del sol occidental in malaga spain multi criteria and social research techniques were combined relying on social actors involvement throughout the research work the paper documents that participatory processes allowed to unveil framings perspectives values and interests as well as understanding of the social and institutional context in which the waters are governed the deployment of this methodological approach has in this case provided an extended diagnosis which was the starting point to explore non a priori foreseen management alternatives by the researchers the methodological approach proved useful for problem structuring in a collective flexible and iterative way unveiling existing water management conflicts and their motivations and improving the quality and effectiveness of the information exchange and the reflection process among social actors even if the whole process developed in a research setting rather than in a policy for real one participatory multi criteria evaluation could in this case contribute to identify policy options that could be better defended before all the social actors including the general public thus attempting to achieve shared ground the paper suggests some methodological considerations for applying participatory multi criteria evaluation based on the outcomes of the case study application

production quota in multiproduct pacific fisheries abstract assessing the individual firm s technology and costs in a multispecies fishery allows design of a more effective output quota prior to regulation by anticipating and controlling for the firm s regulation induced responses an empirical study of a pacific coast trawl fishery indicates that the firm s flexibility of product decision is tightly constrained by its technology and cost structure hence as the resource stock for the regulated species sablefish deteriorates and the trip quota progressively tightens the firm cannot sufficiently reorganize its product bundle to preclude increasingly large sablefish disposal this defeats the purpose of the production quota

opaque financial reports r2 and crash risk abstract we investigate the relation between the transparency of financial statements and the distribution of stock returns using earnings management as a measure of opacity we find that opacity is associated with higher r2s indicating less revelation of firm specific information moreover opaque firms are more prone to stock price crashes consistent with the prediction of the jin and myers 2006 r2 around the world new theory and new tests journal of financial economics 79 257 292 model however these relations seem to have dissipated since the passage of the sarbanes oxley act suggesting that earnings management has decreased or that firms can hide less information in the new regulatory environment

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

mutual fund herding and stock price crashes abstract we investigate the impact of mutual fund herding behaviours on stock price crashes there are competing hypotheses with respect to how investors herding behaviours are associated with information processing our empirical evidence shows that mutual fund herding is associated with a poor information environment and low disclosure quality more importantly mutual fund herding amplifies stock price crash risk afterwards the main finding is concentrated on buy herding rather than sell herding to mitigate the endogeneity concern we use the 2004 sec mutual fund disclosure regulation change as an exogenous shock and the results hold we further use propensity score matching to alleviate the impact of information asymmetry finally additional analysis reveals that our results are not driven by the price impact hypothesis

efficiency sustainability and global warming abstract economic analyses of global warming have typically been grounded in the theory of economic efficiency such analyses may be inappropriate because many of the underlying concerns about climate change are rooted not in efficiency but in the intergenerational allocation of economic endowments a simple economic model is developed which demonstrates that an efficient economy is not necessarily a sustainable economy this result leads directly to questions about the policy relevance of several economic studies of the issue we then consider policy alternatives to address global warming in the context of economies with the dual objectives of efficiency and sustainability with particular attention to carbon based taxes

degrowth initiatives in the urban water sector a social multi criteria evaluation of non conventional water alternatives in metropolitan barcelona abstract debates on degrowth have mainly focused on theoretical issues specially around the unsustainability of the current economic model based on growth along those lines some scholars have dealt with the opportunities and barriers to voluntary social action for degrowth at a general level notwithstanding the key importance of such debates we argue that local strategies to move towards degrowth are still to be explored departing from the specific case of water in this paper we interrogate the compatibility of non conventional centralised and decentralised water supply technologies desalination reclaimed water reuse greywater reuse and rainwater harvesting with degrowth principles taking as a case study the metropolitan area of barcelona spain a social multi criteria evaluation has been performed to explore the feasibility desirability and acceptability of both models the paper aims to explore the pros and cons of the different water alternatives in two different and hypothetic societies one based on growth business as usual and one based on degrowth the technical analysis reveals that rainwater harvesting and reclaimed water reuse are the most preferred alternatives from a degrowth perspective while reclaimed water reuse and desalination are the most preferred alternatives from a growth perspective the social multi criteria analysis also serves to unveil which social actors may favour or block the adoption of each alternative notwithstanding that most social groups see desalination as the least desired option this is the hegemonic non conventional source in spain which evidences the prevalence of growth discourses in water management local decision makers city council managers and environmental groups clearly opt for the promotion of rainwater harvesting and as a result they appear as potential allies to promote degrowth in water consumption the social multi criteria evaluation helps to elucidate the main challenges that need to be addressed in the pursuit of a more sustainable and equitable water management

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

efficiency and the bear short sales and markets around the world we analyze cross sectional and time series information from 46 equity markets around the world to consider whether short sales restrictions affect the efficiency of the market and the distributional characteristics of returns to individual stocks and market indices we find some evidence that prices incorporate negative information faster in countries where short sales are allowed and practiced a common conjecture by regulators is that short sales restrictions can reduce the relative severity of a market panic we find strong evidence that in markets where short selling is either prohibited or not practiced market returns display significantly less negative skewness

the informational effects of restrictions on short sales some empirical evidence in a world of heterogeneous investors a competitive financial market has two major functions first it is the mechanism by which ownership of the existing supply of risky assets is distributed among investors this is the role which is analyzed in detail by the standard capital asset pricing model capm and its many extensions the second important market function is to aggregate the diverse information held by different investors into a single price most versions of the capm eliminate the information aggregation function by assuming that investors hold homogeneous beliefs with respect to the probability distribution of asset returns exceptions which deal with some aspects of the problem are lintner 7 grossman 4 grossman and stiglitz 5 and figlewski 1 3

weak comparability of values as a foundation for ecological economics the main argument of this paper is that weak comparability of values should be seen as one characteristic feature of ecological economics the formal properties of the concepts of strong comparability implying strong or weak commensurability and weak comparability implying incommensurability will be clarified multicriteria evaluation offers the methodological and mathematical tools to operationalize the concept of incommensurability at both macro and micro levels of analysis the concept of incommensurability of values already has a long tradition in economics moreover we will show that analytic philosophy theories of complexity post normal science and the recent theories of rationality lead with different trajectories to a non algorithmic approach which in our view could be implemented by some forms of multicriteria evaluation 1998 elsevier science b v all rights reserved

price convexity and skewness this paper develops a model in which investors who are prohibited from short selling agree to disagree on the precision of a publicly observed signal the model implies that the equilibrium price is a convex function of the public signal the model predicts that 1 the stock price reacts more to good news than to bad news 2 the skewness of stock returns is positively correlated with contemporaneous returns but negatively correlated with lagged returns 3 short sale constraints increase rather than decrease skewness and 4 disagreement about information precision increases skewness empirical tests conducted find supportive evidence for all these predictions

short interest explanations and tests cross sectional and time series tests are performed to explain levels and changes in short interest explanatory variables and tests are chosen based on tax arbitrage and speculative reasons for going short short interest is found to follow a seasonal pattern that is weakly consistent with tax based trading stocks with high betas and the existence of convertible securities or options tend to have higher levels of short interest which is con sistent with arbitrage efforts for firms with traded options there is a positive association between the month to month changes in option open interest and short interest prior months returns and changes in short interest are positively related but there is no rela tionship between changes in short interest and returns in the subsequent month

short sales and stock price crash risk evidence from an emerging market abstract using a regulatory change in china as an exogenous shock we find that the removal of short sales constraints increases stock price crash risk this relation is attenuated when firms suffer less from information asymmetry highlighting the effect of interaction between uninformed and informed investors

assessing technical efficiency in commercial fisheries the mid atlantic sea scallop fishery despite the extensive effort to research issues of allocative efficiency in fisheries little empirical analysis of technical efficiency te in fisheries exists this study examines vessel efficiency using a stochastic production frontier based on a sample of sea scallop vessels operating in the mid atlantic between 1987 and 1990 estimates of te are computed and compared with input usage resource conditions economic performance and recently imposed regulations the analysis suggests that owners and captains only partially compensate for changes in resource conditions through the use of labor and fishing effort and recent regulations may improve overall te in the short run

economic versus physical input measures in the analysis of technical efficiency in fisheries the measurement of technical efficiency requires the estimation of an appropriate production frontier this is based on a set of inputs that are assumed to influence the level of output deviations from this frontier production function are separated into random variation and inefficiency however mis specification of the production function through the use of inappropriate input measures may result in a bias in the measures of inefficiency in fisheries production is generally assumed to be a function of stock size fishing time and the level of physical inputs employed defining the appropriate levels of physical inputs however is not straightforward and several alternative measures are available while economic measures of capital are more intuitively appealing physical measures are generally readily available and hence less costly to collect in this study technical efficiency is measured for three fleet segments operating in the north sea using three different gear types the effects of using

sustainability under uncertainty a deontological approach a deontological or kantian approach to intergenerational fairness suggests that sustainability criteria should be imposed as prior constraints on the maximization of social preferences concerning the distribution of welfare between present and future generations in particular it is plausible to assert that each successive generation holds a duty to ensure that the expected welfare of its offspring is no less than its own perceived well being this moral rule implies a bias against actions that generate present benefits but impose the risk of irreversible future losses if the preservation of options would allow for improved decisions as new information became available

developing a sustainability framework for the assessment of bioenergy systems the potential for biomass to contribute to energy supply in a low carbon economy is well recognised however for the sector to contribute fully to sustainable development in the uk specific exploitation routes must meet the three sets of criteria usually recognised as representing the tests for sustainability economic viability in the market and fiscal framework within which the supply chain operates environmental performance including but not limited to low carbon dioxide emissions over the complete fuel cycle and social acceptability with the benefits of using biomass recognised as outweighing any negative social impacts this paper describes an approach to developing a methodology to establish a sustainability framework for the assessment of bioenergy systems to provide practical advice for policy makers planners and the bioenergy industry and thus to support policy development and bioenergy deployment at different scales the approach uses multi criteria decision analysis mcda and decision conferencing to explore how such a process is able to integrate and reconcile the interests and concerns of diverse stakeholder groups

five capital impact assessment appraisal framework based on theory of sustainable well being abstract this paper sets out to formulate an appraisal approach in context with sustainable development in conventional project appraisal such as energy undertakings most emphasis is placed on financial flows and rate of return on infrastructure investments although current greenhouse gas emissions are estimated to pose large costs on future generations these emissions are generally not estimated as part of the investment cost other public goods may also be omitted because their value is not recognized we review conventional cost benefit assessment and propose a new broader evaluation this new evaluation approach is based on the theory that five capital value types support long term well being rather than economic growth alone the theory states that humans depend on the size of stocks and flows from natural manufactured human social and financial capital we describe the five capitals to illustrate the value categories and outline an approach to evaluate all these in the context of energy development

searching for sustainability the poverty of spontaneous order abstract traditional approaches to sustainability rely on models that depend upon judgments of welfare across future generations right prices and some sense as to what future persons will find giving of utility these models both accept the spontaneous order of market processes and rely on that order to derive optimal consumption paths into the future sustainability is however not a problem of divining optimal paths predicated upon right prices rather sustainability to be operational requires a prior constructed order predicated upon rights for future persons and duties for those now living who sit in a position as dictator over the settings and circumstances that will be passed on to future persons rights based approaches to sustainability do not rely upon unknowable preferences of future persons but rather upon an environmental regency in which those now living agree to preserve settings and circumstances for the future this reminds us that the issue of sustainability concerns not how much to preserve but what to preserve

joint ventures and technology transfer the solomon islands pole and line fishery abstract joint ventures are a popular way of facilitating the transfer of technology from distant water fishing nations dwfns to developing resource owning countries in addition to being exploited by a joint venture the solomon islands fishing zone is also exploited by a dwfn fleet and a domestic fleet a stochastic frontier approach is used to compare changes in technology and technical inefficiency among the three fleets in the period 1988 1994 it is found that the level of productivity of the joint venture fleet is higher than that of the domestic fleet reflecting some past gains from the joint venture however the rate of increase of productivity is higher for the domestic fleet suggesting that the solomon islands are not receiving any on going benefits of technology transfer in return for concessional access to their waters

in search of substantive economics comparing today s two major socio metabolic approaches to the economy mefa and musiasem ecological economics is largely about the substantive in kind study of the economy as opposed to a purely formal economic analysis in money following kapp polanyi and others this article argues that substantive economics is interested in the biophysical and politico institutional structure of the economy rather than in correct prices within a particular axiomatic conformity as in formal economics after outlining the history of the substantive vs formal dichotomy we point out that socio metabolic analyses are ecological economics most significant contribution towards substantive economics the core of this article then compares what could be today s two best candidates for offering a distinctive foundation to ecological economics as substantive economics material and energy flows analyses mefa and multi scale integrated analyses of societal and ecosystem metabolism musiasem while mefa is more easily comparative and historical musiasem is more integrative and comprehensive yet we also argue that socio metabolic analyses represent one of the three pillars of substantive economics and that both mefa and musiasem are still weak in integrating the politico institutional structure second pillar and a theory of needs third pillar if such an integration was done ecological economics would be in a position to offer a full fledge alternative substantive economic theory

the shallow or the deep ecological economics movement ecological economics and its policy recommendations have become overwhelmed by economic valuation shadow pricing sustainability measures and squeezing nature into the commodity boxes of goods services and capital in order to make it part of mainstream economic financial and banking discourses there are deeper concerns which touch upon the understanding of humanity in its various social psychological political and ethical facets the relationship with nature proposed by the ecological economics movement has the potential to be far reaching however this is not the picture portrayed by surveying the amassed body of articles from this journal or by many of those claiming affiliation a shallow movement allied to a business as usual politics and economy has become dominant and imposes its preoccupation with mainstream economic concepts and values if instead ecological economists choose a path deep into the world of interdisciplinary endeavour they will need to be prepared to transform themselves and society the implications go far beyond the pragmatic use of magic numbers to convince politicians and the public that ecology still has something relevant to say in the 21st century author s abstract

flows funds and the complexity of deprivation using concepts from ecological economics for the study of poverty abstract poverty has been increasingly conceptualized as being multidimensional involving deprivation in many dimensions of life this paper discusses issues and implications of multidimensional poverty by adopting concepts commonly used in ecological economics in particular poverty is approached as an irreducible complex phenomenon for which many legitimate but non equivalent descriptions exist issues of social and technical incommensurability are illustrated for different meanings and measurement types of poverty georgescu roegen s flow fund framework is interpreted informed by the capability approach of amartya sen the paper argues that a predominant focus on flows as a proxy to analyze poverty represents rather a short term perspective on access to satisfiers to fulfill particular needs contrary to that focusing on valued funds may provide useful information for the analysis of capabilities that persons and societies might pursue in the long term furthermore it is argued that strong poverty alleviation needs to adopt analytical tools that can deal with non trade off cases improvements in one poverty dimension cannot always compensate for the deterioration of other poverties this implies to rethink the usefulness of aggregate multidimensional poverty indices as well as the predominant use of income measures

a credit score system for socially responsible lending ethical banking microfinance institutions or certain credit cooperatives among others grant socially responsible loans this paper presents a credit score system for them the model evaluates social and financial aspects of the borrower the financial aspects are evaluated under the conventional banking framework by analysing accounting statements and financial projections the social aspects try to quantify the loan impact on the achievement of millennium development goals such as employment education environment health or community impact the social credit score model should incorporate the lender s know how and should also be coherent with its mission this is done using multi criteria decision making mcdm the paper illustrates a real case a loan application by a social entrepreneur presented to a socially responsible lender the decision support system not only produces a score but also reveals strengths and weaknesses of the application

short selling and common stock prices an analysis of overall market data and of individual companies traded on the nyse amex and otc markets indicates a positive but statistically insignificant relation between changes in short position and stock prices even after accounting for market movements and risk short sellers on average do not earn abnormal returns furthermore the relation between short selling and stock price does not seem to be materially affected by whether the stock is traded on the nyse or amex or over the counter the results provide strong evidence refuting the popular notion that short sellers earn abnormal profits at the expense of less informed traders short sellers do not appear to drive prices down through their short sales in fact if anything short sellers provide market liquidity by shorting into up markets and reducing short positions in down markets

options short sales and market completeness this paper presents empirical evidence that trading in options contributes to both transactional and informational efficiency of the stock market by reducing the effect of constraints on short sales the significantly higher average level of short interest exhibited by optionable stocks supports the argument that options facilitate short selling we also find significant effects on option prices related to the short interest in the underlying stock we then present evidence that options also increase information efficiency earlier work that is replicated and extended here has suggested that short sale constraints cause stock prices to underweight negative information options appear to reduce that effect

dynamic multidimensional assessment of sustainability at the macro level the case of austria abstract this paper explores the issue of sustainability at the macro scale employing multi criteria decision aid mcda methods the incommensurability of values and the essentially multi dimensional and dynamic nature of sustainability challenge the use of composite measurement indices this determined the choice of mcda methods austria was chosen as a case study due to the wide availability of data especially on indicators of strong sustainability the structure of the multi criteria problem comprised the evolution of different sustainability dimensions over time the process for selecting criteria included a critical assessment of institutional sustainability agendas un eu and austrian government and theoretical recommendations after an assessment of mcda methods the naiade method demonstrated the most suitable properties for sustainability assessment the application of this outranking approach was undertaken in three separate settings long term from 1960 to 2003 medium term 1970 1995 and short term 1995 2003 with varying numbers of criteria the response of results to the addition of evaluating criteria and periods was tested the degree of credibility for accepting preference relations was also employed for sensitivity analysis according to the results of long term and medium term assessments especially in the weak sustainability setting sustainable progress is taking place in austria in the short term in the stronger sustainability setting and especially as the number of criteria increases more incomparable periods appear and trends are less determined moreover it is shown how results crucially depend on the methodological choices this is one of the first applications of the multi criteria tools to the dynamic analysis of sustainability at the macro scale

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

an explanation for accounting income smoothing it is widely believed that corporate managers often engage in income smoothing taking actions to dampen fluctuations in their firms publicly reported net income one reason given for this is that managers think that investors pay more for a firm with a smoother income stream see ronen and sadan 1981 while there have been many empirical studies attempting to document whether or not income smoothing actually occurs there has been little exploration of why a manager might rationally want to smooth his firm s income explaining why smoothing might be observed and how it can result in an increased stock price is the focus of this paper in two recent studies lambert 1984 and dye 1988 demonstrate in agency settings that a risk averse manager who is precluded from borrowing and lending in the capital markets has an incentive to smooth his firm s reported income in this paper in contrast it is shown that within a market setting an incentive exists for a manager to smooth income that is independent of either risk aversion or restricted access to capital markets the market setting is also useful in that it allows for the analysis of the effect of income smoothing on stock prices it is shown here that if a manager can choose which of two periods to recognize certain income he may prefer the choice that is expected to