firm level ecosystem service valuation using mechanistic biogeochemical modeling and functional substitutability increasingly private firms are focusing on environmental sustainability however such entities continue to experience difficulty in operationalizing sustainable practices in management decisions for firms that own natural ecosystems part of the difficulty stems from their inability to balance the environmental value of conserving these ecosystems against potential profits that could be captured through their development to overcome this we present a new comparative framework for natural and engineered systems which allows for a rigorous valuation of ecosystem services based on functional equivalence with engineered systems this framework allows for the opportunity of such value to be represented within international accounting standards thus aligning biological ecosystem service valuation with current rigorous accepted accounting norms looking specifically at the removal of phosphorus via wetland we characterize an ecosystem service using a mass balance mechanistic biogeochemical model we then simulate the ecosystem performance under various loading conditions to determine the limit state for which the wetland can perform the service of phosphorus removal in the long term finally using functional substitutability we apply an appropriately scaled price of the engineered equivalent system to determine a market based value of the ecosystem service as a demonstration we apply this methodology to an estuary located in southern california

the sustainable borders of the state economic crises have historically set the stage for the reconfiguration of the economic borders of the state current concerns focus on debt and associated intergenerational issues such as pensions infrastructure and the environment the sustainable state is designed to put in place a framework for integrating these intergenerational issues alongside the traditional focus on macroeconomic policy static market failures and transfers the building blocks include the accounting framework and in particular a national balance sheet setting out assets and liabilities and providing for capital maintenance over time to support these assets and to provide for sufficient investment the sustainable state requires an appropriate level of savings and institutions to translate these savings into investments two components are the deployment of regulatory asset bases to underpin long term sunk and fixed costs given the time inconsistency problem in government s commitments and the development of financial intermediaries such as an infrastructure bank copyright 2011 oxford university press

degradation of environmental capital and national accounting procedures abstract the capital theoretic approach to the environment as a wastable stock a stock with a flow of abatement services is explored in a simple ricardo like model involving wheat production and pollution production as an essential by product we then turn to how the national accounts are implicit in growth or capital theory models and how formulae emerge for accounting for the wasting of environmental capital airsheds and watersheds from excessive use

optimal tax rules and public sector efficiency with an externality in an overlapping generations model abstract this paper examines optimal tax rules and public sector efficiency integrating them in a second best world with pollution by using an overlapping generations model the second best world is characterized by the comparative statics of green preferences the main results obtained are as follows first the marginal cost of public funds may be reduced by the externalities regardless of the choice of taxes second optimal environmental and non environmental tax rules are additively and directly affected by the dynamic efficiency of capital accumulation per unit labour decal and indirectly by it through the efficiency of the public sector environmental taxes going beyond pigovian ones may be welfare improving if the decal is improved by the environmental tax even optimal non environmental tax rules should additively and directly counter the dynamics of pollution to consider the income effects of the optimal tax system for the future third the additivity property or the principle of targeting does not hold even in the absence of incentive compatibility constraints the essential reasons for this are clarified as follows distortions that should be countered by taxes that is the income effects of the optimal tax system and the decal in this model break the equality between optimal environmental taxes and the externalities measured by governments finally growing environmental concerns may in fact increase pollution the inverse relationship between environmental and labour income taxes may not hold

managing cattle grazing under degraded forests an optimal control approach abstract in this paper aspects of knowledge generation and administration concerning management of a rural enterprise in the argentine chaco region are analyzed the deterioration of natural resources and human living conditions show that forest cattle interaction and the ecological economics of the system are poorly understood or not properly taken into account a methodological solution to a typical decision making problem is proposed here and illustrated by a worked example extracted from a real feasibility study the introduction provides a summary of the natural history and of the human interventions in the region arguments on the roke of silvopastoral systems in reverting forest and soil degradation into sustainable productive undertakings are also exposed the mathematical treatment of the problem follows a system theoretic approach a basic nonlinear model for the dynamics is designed first its simplest version includes three state variables livestock units forest biomass and forage availability and two manipulated variables percentage of female calves sold each year and percentage of the cows that did not give birth during the past period and went for sale states and controls are related by coupled differential difference equations selected results from simulation are shown foundations are also laid for taking into account impulsional controls selective and massive wood extractions forage implantation cattle additions and sales the objective function reflects sustainable development principles it evaluates the process in terms of usual economics and introduces ecological components of the management strategy the total cost is expressed as the accumulation of net expenses made for a fixed number of years minus the sale value of the firm at the end then a dynamic programming scheme is developed for finding optimal trajectories with respect to the basic setup shadow prices for the states are derived from the solution progress towards the building of a decision support system with the preceding elements is reported

second order sustainability conditions for the development of sustainable innovations in a dynamic environment abstract in particular radical innovations can be important means to achieving improved sustainability due to the existence of path dependency and lock in however the transition from one technological trajectory to another more sustainable one is often impeded by significant barriers fortunately these barriers are by their nature subject to substantial changes in time so it makes sense to carefully distinguish between periods of stability showing high barriers in which the given trajectory can hardly be left and periods of instability characterized by low barriers where a new trajectory can be reached more easily the latter distinction matters since sustainable innovations often rely on governmental regulation and the economic burden arising from this regulation will be much lower in periods of instability moreover due to the complexity and dynamics of change in their respective environments innovations are generally associated with fundamental uncertainty such that it becomes impossible to predict the degree of sustainability yielded by specific innovations in the longer run under these circumstances it is essential to facilitate the change between trajectories and to allow for the possibility to select between a variety of alternative trajectories within a process of trial and error sustainability as viewed from this evolutionary perspective is therefore better understood as the general capability to adapt that is to readily change from less to more sustainable technological trajectories since the latter kind of sustainability determines the conditions under which the former kind i e sustainability related to a specific technology can be achieved the two kinds are respectively called second order and first order sustainability finally a series of determinants and corresponding indicators from the techno economic political and socio cultural sphere is identified which after proper measurement and weighting allow for making an assessment whether and when the incumbent industry is sufficiently destabilized and the political system rendered sufficiently favorable to the new more sustainable technology such that a transition to the preferred trajectory is possible without too much effort

linking economic and ecological models for a marine ecosystem increasingly economists and ecologists have begun to recognize the value to public policy of combining information and results from each discipline into multidisciplinary studies here we present a methodological approach that links economic and ecological analyses we develop an economic ecological model by merging an input output model of a coastal economy with a model of a marine food web we describe distinct linear system sub models of the economy and the ecosystem and we develop a method for linking the two our method extends the work of earlier researchers by incorporating an ecosystem matrix into resource multipliers and by showing how these multipliers may be calculated we present a numerical example for the new england region using coastal economic and marine ecological data from the region for a restricted set of industry sectors and food web trophic levels we calculate resource multipliers for the example and we simulate the economic impacts of changes in primary production in the ecosystem on final demands for fishery products the results illustrate the effects of incorporating the impacts of habitat destruction and ecosystem structure on resource multipliers our approach can be extended to incorporate the full range of sectors in the economy and trophic levels in a linked ecosystem 2003 elsevier b v all rights reserved

critical natural capital a socio cultural perspective abstract critical natural capital cnc is commonly defined as that part of the natural environment which performs important and irreplaceable functions so far the challenge to determine the criticality of natural capital nc has mainly been taken up by the natural sciences and the critical functions of nature mainly associated with its life support and ecological services little attention has been paid to the socio cultural functions of nc and to their values for the health and well being of human societies the aim of this paper is to encourage a more complete accounting of the critical functions of nc and its associated values by highlighting the importance of the information functions health recreation amenity education heritage etc for the quality and sustainability of human life it is argued that despite their immaterial and often intangible nature these functions provide many socio economic benefits which might be assessed through both qualitative and quantitative valuation methodologies integration of ecology sociology and economics is essential to operationalize the concept of cnc as a tool for more balanced environmental planning and decision making

accounting for the value of ecosystem services abstract a value of ecosystem services ves may be calculated by multiplying a set of ecosystem services by a set of corresponding shadow prices this paper examines the role of the ves concept in measuring trends in human well being under conventional arguments from applied welfare economics standard measures of market consumption may be extended to include the value of direct environmental services which affect welfare in ways that are not mediated by the consumption of purchased goods the ves concept does not capture values such as ecological sustainability and distributional fairness that are not reducible to individual welfare and its operationalization is constrained by the well known limitations of nonmarket valuation methods nonetheless attempts to calculate the value of environmental services can provide insights into the tradeoffs between market activity and environmental quality that are implicit in the process of economic growth such efforts can promote informed debate concerning the achievement of sustainable development

optimal dutch disease growth models of the dutch disease such as those of krugman 1987 matsuyama 1992 sachs and warner 1995 and gylfason et al 1999 explain why resource abundance may reduce growth however the literature also raises a new question if the use of resource wealth hurts productivity growth how should such wealth be optimally managed this question forms the topic of the present paper in which we extend the growth literature on the dutch disease from a positive to a normative setting we show that the assumptions in the previous literature imply that the optimal share of national wealth consumed in each period needs to be adjusted down however some dutch disease is always optimal thus lower growth in resource abundant countries may not be a problem in itself but may be part of an optimal growth path the optimal spending path of the resource wealth may be increasing or decreasing over time and we discuss why this is the case

econometric modeling of fisheries with complex life histories avoiding biological management failures abstract economics of the fishery has focused on the wastefulness of common pool resource exploitation pure open access fisheries dissipate economic rents and degrade biological stocks biologically managed fisheries also dissipate rents but are thought to hold biological stocks at desired levels we develop and estimate an empirical bioeconomic model of the gulf of mexico gag fishery that questions the presumptive success of biological management unlike previous bioeconomic life history studies we provide a way to circumvent calibration problems by embedding our estimation routine directly in the dynamic bioeconomic model we nest a standard biological management model that accounts for complex life history characteristics of the gag biological intuition suggests that a spawning season closure will reduce fishing pressure and increase stocks and simulations of the biological management model confirm this finding however simulations of the empirical bioeconomic model suggest that these intended outcomes of the spawning closure do not materialize the behavioral response to the closure appears to be so pronounced that it offsets the restriction in allowable fishing days our results indicate that failure to account for fishing behavior may play an important role in fishery management failures

on the life cycle metaphor where ecology and economics diverge abstract there is an attractive analogy between nature and industry based on the similarity of natural functions and certain industrial activities for instance animals ingest eat and digest food finally there are metabolic wastes firms are analogous to organisms in several respects insofar as they consume material resources process digest them and produce output products and excrete wastes firms like organisms also compete with each other for resources curiously enough one of the apparent differences between natural and man made systems is actually not one like the industrial system the natural system does not recycle everything however there are at least four real and important differences between the biosphere ecology and the technosphere economy first there is no primary producer in the economic system analogous to what photosynthesizers play in the biosphere inputs to the economy are mostly natural resources capital services and labor second in the economic system output is a heterogeneous mix of manufactured products and services labor in economics is an input but not an output the economic system recycles much less than the ecological system but utilizes a far greater suite of elements in the biosphere there are no products as such growth is tantamount to accumulation of embodied solar exergy in the form of cellulose sugars lipids and proteins the biosphere produces only wastes and more of itself plus dead matter third in the biosphere there are no markets there is no medium of exchange like money and there is nothing analogous to paid labor exchanges are involuntary i e by predation parasitism or theft fourth evolution in nature is driven by differentiation by random mutations of the genome and darwinian selection based on reproductive success in economics differentiation is based on discovery invention and innovation by intelligent economic agents and selection is based on competition at the individual or firm level either way the economic system is not closely analogous to an ecosystem attempts to use ecological concepts in an economic context are often misleading and unjustified the paper discusses the implications of the eco eco mismatch for resource accounting and life cycle analysis

on the intergenerational allocation of natural resources it is known hartwick and others that under standard assumptions a society that invests in reproducible capital the competitive rents on its current extraction of exhaustible resources will enjoy a consumption stream constant in time it is shown here that this result can be interpreted as saying that an appropriately defined stock of capital including the initial endowment of resources is being maintained intact and that consumption can be interpreted as the interest on that patrimony this seems like a useful rule of thumb for policy

intertemporal equity and efficient allocation of resources abstract competitive paths which are efficient are shown to satisfy a terminal cost minimization condition thereby providing a continuous time counterpart to the discrete time result due to malinvaud using this result competitive paths which are equitable and efficient are shown to satisfy hartwick s investment rule which states that the value of net investment is zero at each date our result indicates that hartwick s rule can help to signal inefficiency of competitive equitable paths journal of economic literature classification numbers c61 d90 o41

environmental issues and economic decisions in developing countries abstract this paper explains the key role of environmental economics in incorporating environmental concerns into decision making and in facilitating the more efficient management of natural resources as a step toward sustainable development it reviews concepts and techniques for valuation of environmental impacts for use in conventional cost benefits analysis as well as key related aspects including environmental impacts of economywide policies multicriteria analysis risk and uncertainty and discount rate issues several developing country case studies are summarized which cover a range of practical valuation methods the evidence presented suggests that the valuation techniques for determining use values may be applied successfully in appropriate cases but examples involving nonuse values are rare the use of multiobjective desicion methods also needs to be explored where economic valuation is not feasible

international trade and the sustainability footprint a practical criterion for its assessment a simple and minimal criterion for sustainability is that the value of natural capital plus manufactured capital be not decreasing on the basis of any individual country or region the above simple comparison may be misleading as it does not take account of the production of goods for consumption in other countries regions via international trade in other terms the full environmental footprint of a country may not be properly assessed a method of calculating a weak sustainability criterion has been established for both a closed economy approach and an open economy approach there are significant differences between the open and closed economies measures for several regions particularly the middle east overall global sustainability on this criterion has been positive and increasing using a difference equation approach a further analysis has been made of the average proportional rate of change of global sustainability between 1980 and 1990 and its various regional and structural components have been determined these indicate that most of global sustainability growth can be attributed to western europe other asia and japan particularly through high savings ratios the usa on the other hand has made a very small net contribution to the growth in global sustainability

limited entry licensing insights from a duration model limited entry is used to manage many fisheries effectiveness depends on a program s ability to control aggregate fishing power which fleet size and composition both affect this article analyzes fleet composition and attrition in a limited entry fishery the california red sea urchin fishery it explores the dynamics of heterogeneity in catch and revenue and applies duration analysis to study individual fisherman attrition using both individual level and time varying covariates the results show that the fleet is becoming more homogenous but also more potent and spatially mobile regulations such as size limits and season restrictions tend to increase attrition

discounting of long term costs what would future generations prefer us to do decisions with intergenerational consequences may leave future generations worse off i e not be pareto optimal if costs and benefits are not discounted correctly we point out that this happens if the conventional social discount rate is applied to intergenerational costs with that rate the justification of intergenerational costs benefits of a project are invested and the proceeds can cover future costs leads to an inconsistency over the long term eventually the supposed benefits of any project become larger than the entire gnp the conventional approach commits an error by treating the time preference component of the discount rate as if it represented creation of wealth while it really involves only redistribution the time horizon of the redistribution is limited by the duration of market transactions especially loans thus we recommend a two step discounting procedure with the conventional social discount rate for the short term about 30 years and the growth rate of the economy for the long term data for gnp per capita growth in the us the uk france germany japan and the soviet union since the industrial revolution combined with data for net economic welfare per capita suggest an intergenerational discount rate in the range of 1 to 2 for practical application the rate at which costs and benefits will grow over time is just as important as the discount rate only the difference between these two rates matters for many environmental costs these rates may be close to each other during the next few generations this implies that some of the uncertainty in the prediction of rates cancels and one can treat the problem as if the effective rate were close to zero the consequence for costs such as global warming or nuclear power can be very significant the valuation can increase by more than an order of magnitude compared to values based on conventional discounting

measuring the depreciation of australia s non renewable resources a cautionary tale abstract the pursuit of sustainability is widely seen as requiring the calculation and publication of environmentally adjusted measures of national income and or of economic indicators intended to show whether or not economic behaviour is consistent with sustainability requirements in either case a measure of natural resource depreciation is needed the paper restricts its attention to non renewable mineral resources and measures their depreciation in australia according to different methods proposed in the literature using data published by the australian bureau of statistics the different methods are found to yield strikingly different results the conclusion is that robust measurement of natural resource depreciation is unlikely and that results appertaining to such should be treated sceptically

the sustainable residential water use sustainability efficiency and social equity the european experience abstract the present paper traces the operational conditions governing the sustainable use of water in cities towards this objective the paper first proposes a new comprehensive definition for the sustainable use of water next efficiency in use is proposed as a fundamental instrument in achieving sustainability in spite of prevailing opinions maintaining that sustainability and efficiency aim at different and probably conflicting objectives in this light several pricing modes that inhibit efficiency are examined and their effects are defined in this context egalitarian pricing which nevertheless prevents efficiency is also systematically evaluated until it is ascertained that it does not serve social equity in the use of water in the long run all the more the present paper advocates that certain egalitarian pricing systems such as the increasing block rates most prevalent at this time may have the reverse effect than the one intended and hence in the long run impose negative impacts on the welfare of low incomes as a result full cost prices are proposed as a necessary instrument for the sustainable use of water an instrument that promotes social equity in the long run the assumptions of the study are examined in a comparative analysis of representative european pricing systems and urban management modes

rent seeking and incentives for compliance in the commons this article studies how rent seeking behavior induces an informal leasing market for fishing licenses that leads harvesters in a common pool to circumvent rules set by the manager to conserve the resource as well as how the vulnerability of the resource to such behavior depends on the management approach adopted license leasing reduces fleet heterogeneity in terms of catch per unit effort as demonstrated by the outward shift in the stochastic production frontier while aggregate harvest is invariant to alternative profiles of fleet heterogeneity in quota managed fisheries the productivity of the restricted variable total effort increases with the number of leasing contracts in input controlled fisheries if unanticipated by the regulator the additional pressure on the resource may lead to overfishing and compromise the long term viability of the industry

genuine savings and sustainability genuine savings gs has emerged as the leading economic indicator of sustainable economic development at the country level it derives from the literatures on weak sustainability wealth accounting and national income accounting we discuss the theoretical underpinnings of gs focusing on the relationship between changes in a nation s extended capital stock and the future path of consumption the indicator has entered widespread use propelled by the world bank s publications despite its varying performance as a predictor for future consumption notwithstanding the extensive body of literature reviewed promising future research avenues are identified

net national product as an indicator of sustainability net national product nnp can potentially serve several objectives among others to measure value added and to be an indicator of welfare in the aftermath of the world commission on environment and development however it also seems important to investigate whether the concept of nnp can serve as an indicator of sustainability my point of departure following hicks 1946 ch 14 is therefore to require that nnp should measure what can be consumed in the present period without reducing future consumption possibilities and in line with this to argue that the nnp should equal the maximum per capita consumption level that can be sustained if sufficiently many facilitating assumptions are made then a concept of nnp that serves as an exact indicator of sustainability can easily be constructed for instance for a closed economy with a constant population a stationary technology and with only one capital good it follows that the present does not reduce future consumption possibilities if and only if it does not decrease the stock of the single capital good hence under the assumption that the one capital good k is identical to the one consumption good x nnp defined as y x k measures the maximal sustainable consumption at time t because then x y is equivalent to k the purpose of this note is to establish that with multiple capital goods it is not in general possible to construct an exact indicator of sustainability on the

sustainable farm income in the presence of soil erosion an agricultural hartwick rule soil erosion is a physical and economic problem of natural capital degradation even along an intertemporally efficient trajectory one can have in a loss of soil fertility and a continuous decline of agricultural net revenue moreover soil erosion is a major source of surface water pollution in rural areas erosion control is thus a challenge for sustainable resource management and internalizing external effects to sustain the level of farm income an agricultural hartwick rule is proposed which addresses both on farm and off farm effects of soil erosion first it requires the investment of the soil rents into alternative capital second additional measures are required to comply with an ambient quality target a charge subsidy scheme proves the most adequate from a perspective of cost effectiveness and sustainability if effluent charge revenues are earmarked to subsidize cropland retirement at the watershed scale in combination with the investment of soil rents this enables to maintain the level of farm income constant over time while respecting the ambient quality target altogether this fulfills the requirements of efficiency and sustainability 2003 elsevier science b v all rights reserved

the greenhouse effect and intergenerational transfer abstract the scientific basis for understanding the economic issues involved in the greenhouse effect is outlined four important aspects of the problem are identified and discussed irreversibility international and institutional constraints uncertainty and intergenerational equity attention is focused upon the intertemporal choice problem a model describing the potential for intergenerational transfers under the uncertainty of climatic change due to fossil fuel combustion is presented we conclude intergenerational compensation can be achieved by investment in capital or technology or by bequest and is ethically required regardless of any other action

valuing environmental functions tropical wetlands recent studies have suggested that tropical wetland systems may have a crucial economic role to play in development the following paper provides an overview of these benefits using the general framework of cost benefit analysis as the methodological approach to assessing wetland values an analysis of trade offs between conserving or converting tropical wetlands demonstrates that taking into account the opportunity cost of wetland loss leads to a lower level of conversion than would otherwise be the case finally the paper discusses the extensions and limitations of the production function approach as applied to valuing nonmarketed wetland benefits

savings growth and the resource curse hypothesis an important connection between recent attempts to understand the determinants of economic growth and the measurement of sustainability is the finding of a negative and significant relationship between natural resource abundance and economic growth this is the so called resource curse hypothesis using cross country regressions we offer evidence that the curse may itself be a manifestation of the inability of governments to manage large resource revenues sustainably in particular these results offer another perspective on the resource curse hypothesis the countries where growth has lagged are those where the combination of natural resource macroeconomic and public expenditure policies have led to a low rate of genuine saving net saving adjusted for resource depletion

intertemporal equity and hartwick s rule in an exhaustible resource model in a standard exhaustible resource model it is known that if along a competitive path investment in the augmentable capital good equals the rents on the exhaustible resource known as hartwick s rule then the path is equitable in the sense that the consumption level is constant over time in this paper we show the converse of this result if a competitive path is equitable then it must satisfy hartwick s rule

georgescu roegen daly versus solow stiglitz revisited there are two key issues which are not fullyelaborated in the papers in a recent special issueof ecological economics the contribution ofnicholas georgescu roegen vol 22 no 3 1997 i the operational meaning of substitutionin production function and ii the effect of tech nological improvement on resource utilization inthis piece we examine these two issues based on i georgescu roegen s conceptualization of pro duction process and ii jevons paradox neoclassical production functions whether forindividual rms or the aggregate economy as sume that any factor can always be substituted forany other factor except the cases of xed coef cients and or the existence of limitational factors the implication or entailment of this assumptionis that an increase in the input of any factoralways yields an increase in output this is thebasis for solow s contention that t he world can in effect get along without natural resources solow 1974 however those neoclassical economists adopt ing the substitution assumption have not paid dueattention to the essential distinction between ows quantities of materials qualitatively trans formed in the process and funds agents trans forming a given set of in ows into a given set ofout ows in the material production process georgescu roegen 1971 neglecting this dis tinction results in a systematic indifference to thebiophysical foundation of economic activities infact according to georgescu roegen 1990 fordesigning a blueprint of a factory process anexpert has to consider a set of three relationships i the normal rate of output

william stanley jevons the coal question 1865 beyond the rebound effect before his major 1870s economic writings william stanley jevons wrote in 1865 his first important book entitled the coal question jevons displays an interest for the problem of resource depletion and some opportunism linked to the treatment of a subject in vogue at the time the coal question is retrospectively essentially known for having pointed out the first bases of what we call today the rebound effect known as well as the jevons paradox no one can deny the major contribution jevons did by insisting on the energy efficiency paradoxical phenomenon however this is not the only interesting idea proposed in the coal question this article aims at drawing a larger framework of the ideas developed by jevons looking at some specific points that testify to his position as a turning point in the history of environmental studies we see that jevons expresses a desire of emancipation from both natural sciences and engineering yet without ignoring the necessity of interdisciplinary perspectives to deal with environmental matters it places jevons as a pioneer of several modern approaches towards environmental economics including ecological economics

environmental equity and sustainability rejecting the kaldor hicks criteria abstract an implementable translation of environmental equity and sustainability is provided for use in benefit cost analysis as such the approach builds on the underlying economic structure of benefit cost analysis while trying to cause it to evolve in ways that take into account issues of greater concern to ecological economists environmental equity and sustainability are interpreted as imposing new decision criteria that require additional benefit cost tests based on actual compensation to identified sub groups of the population this rejects the pre world war ii compromise of economists regarding potential compensation embodied in the kaldor hicks criteria for environmental equity a project is proposed to pass a benefit cost test if the identified group either receives net benefits or is more than compensated for its losses for sustainability a project is proposed to pass a benefit cost test if the compensation is larger than the net value of the resource and the net value of the resource is reinvested

dutch disease and the mitigation effect of migration evidence from canadian provinces this article evaluates whether immigration can mitigate the dutch disease effects associated with booms in natural resource sectors we derive predicted changes in the size of the non tradable sector from a small general equilibrium model a la obstfeld rogoff using data for canadian provinces we find evidence that aggregate immigration mitigates the increase in the size of the non tradable sector in booming regions the mitigation effect is due mostly to interprovincial migration and temporary foreign workers there is no evidence of such an effect for permanent international immigration interprovincial migration also results in a spreading effect of dutch disease from booming to non booming provinces

national account of timber and forest environmental resources in sweden this paper outlines an extension of the national account of income from forest resources in sweden 1987 incorporating changes in timber inventories production of nonmarketed timber and nontimber goods and depletion or improvement in vital environmental stocks such as soil nutrients biodiversity and carbon sinks the total net value added provided by forest resources and forestry labour 1987 is estimated to 22 billions sek this is one third more than the contribution of forestry to ordinary gnp

deforestation and national accounting we construct a first best growing economy in which land is being switched continuously from use in forestry to an alternative use we find that implicitly for such activity to take place there must be no net loss to land owners this implies no deduction in the national accounts for deforestation with soil erosion on deforested land pigovian taxes must be levied to sustain a first best we also observe an optimal tax on households for their implicit use of forests as oxygenation sinks

testing for input substitution in a regulated fishery input restrictions are commonly used to prevent rent dissipation in fisheries this paper examines whether these schemes are successful by calculating the degree of input substitution between restricted and unrestricted inputs conventional elasticities of substitution cannot be used when the firm faces controls on the use of some inputs in this case the appropriate measure of substitution the elasticity of intensity must be used data from the british columbia salmon fishery provide evidence of input substitution possibilities for two vessel types these results call into question the usefulness of input control schemes

the capital gains from trade are not enough evidence from the environmental accounts of venezuela and mexico abstract in principle a country cannot endure negative genuine savings for long periods of time without experiencing declining consumption nevertheless theoreticians envisage two alternatives to explain how an exporter of non renewable natural resources could experience permanent negative genuine savings and still ensure sustainability the first one alleges that the capital gains arising from the expected improvement in the terms of trade would suffice to compensate for the negative savings of the resource exporter the second alternative points at technological change as a way to avoid economic collapse this paper uses the data of venezuela and mexico to empirically test the first of these two hypotheses the results presented here prove that the terms of trade do not suffice to compensate the depletion of oil reserves in these two open economies

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

capital gains and net national product in open economies it is shown within a given framework that with the world economy following an egalitarian path the aggregate capital gains being positive is equivalent to the interest rate tending to decrease this result is of importance for the concept of net national product in open economies in particular with positive aggregate capital gains an open economy cannot sustain consuming the return on its capital stocks since some part of the return must be used to augment the country s national wealth it is established that a country s share of world wide sustainable consumption equals its share of worldwide wealth

intergenerational altruism and the environment we construct an overlapping generations model of pollution externality in which individuals are altruistically linked to their offspring as in barro 1974 it is shown that steady state consumption may be a decreasing function of the intergenerational degree of altruism despite individuals altruism the competitive equilibrium is not optimal we thus study the social optimum and show that it can be decentralized

on the scarcity value of ecosystem services abstract in this exploratory paper we first make a case for considering the scarcity value of ecosystem services in the analyses of jointly determined ecological economic systems next we point out that insight into the scarcity value of an ecosystem service can be gained generally by examining the manner in which the state of an ecosystem responds to changes in environmental conditions following this we specialize our discussion to the case of eutrophication in lakes this leads us to pose and analyze a stochastic control problem of lake management in which ecological thresholds are salient finally we show that this stochastic control theoretic framework can be used to obtain a numerical value that is closely related to the scarcity value of an ecosystem service provided by lakes

technical efficiency of european railways a distance function approach this study has two principal objectives the first objective is to measure and compare the performance of european railways the second objective is to illustrate the usefulness of econometric distance functions in the analysis of production in multioutput industries where behavioural assumptions such as cost minimization or profit maximization are unlikely to be applicable using annual data on 17 railways companies during 1988 1993 multioutput distance functions are estimated using corrected ordinary least squares cols the resulting technical efficiency estimates range from 0 980 for the netherlands to 0 784 for italy with a mean of 0 863 the distance function results are also compared with those obtained from single output production functions where aggregate output measures are formed using either total revenue or a tornqvist index the results obtained indicate substantial differences in parameter estimates and technical efficiency rankings casting significant doubt upon the reliability of

empirical testing of genuine savings as an indicator of weak sustainability a three country analysis of long run trends genuine savings has emerged as a widely used indicator of sustainable development this approach to conceptualising what sustainability is about has strong links to work published by anil markandya and colleagues over 20 years ago in this paper we use long term data stretching back to 1870 to undertake empirical tests of the relationship between genuine savings gs and future well being for three countries britain the usa and germany our tests are based on an underlying theoretical relationship between gs and changes in the present value of future consumption based on both single country and panel results we find evidence supporting the existence of a cointegrating long run equilibrium relationship between gs and future well being and fail to reject the basic theoretical result on the relationship between these two macroeconomic variables this provides some support for the gs measure of weak sustainability

long term substitutability between environmental and man made goods abstract substitutability between environmental and man made goods plays a major role in the sustainability debate the notion of substitutability covers a continuous spectrum with perfect substitutability at one end and poor substitutability at the other in this paper it is shown that if economic growth sustains a sharp distinction emerges between perfect and poor substitutability without any intermediate interpretation of substitutability if poor substitutability prevails environmental resources will eventually constitute the major part of total consumption value we relate our results to baumol s disease and assess the implications of this phenomenon for the compensation of environmental losses

irreversibility and uncertainty cause an intergenerational equity efficiency trade off abstract two important policy goals in intergenerational problems are pareto efficiency and sustainability i e intergenerational equity we demonstrate that the pursuit of these goals is subject to an intergenerational equity efficiency trade off our analysis highlights two salient characteristics of intergenerational problems and policy i temporal irreversibility i e the inability to revise one s past actions and ii uncertainty of future consequences of present actions in human environment systems we employ a two non overlapping generations model that combines an intragenerational production decision on the use of circulating capital and a non renewable resource with a negative intergenerational externality as an unforeseen contingency if initially unknown problems become apparent and policy is enacted after irreversible actions were taken policy making faces a fundamental trade off between ex post pareto efficiency and sustainability that is one can achieve either one of these two goals but not both

an overlapping generations model of growth and the environment this article analyzes the potential conflict between economic growth and the maintenance of environmental quality in an overlapping generations model short lived individuals make decisions which have long lasting effects on both factor productivity and the environment the model provides a theoretical explanation of observed correlations between environmental quality and income whereby economic growth is associated first with declines then improvements in environmental quality it suggests circumstances in which multiple pareto ranked steady state equilibria may arise and in which sustained growth of both capital and environmental quality may occur overmaintenance of the environment analogous to dynamically inefficient overaccumulation of capital may emerge copyright 1994 by royal economic society

technical efficiency effects of input controls evidence from australia s banana prawn fishery this paper provides the first ex post estimates of the effects of input controls on technical efficiency in a fishery using individual vessel data from the northern prawn fishery of australia for the years 1990 1996 and 1994 2000 stochastic production frontiers are estimated to analyse the efficiency impacts of input controls on engine and vessel size the results indicate that technical efficiency is increasing in a measure of vessel size and engine capacity that was controlled by the regulator from 1985 to 2001 and decreasing in an unregulated input gear headrope length the study shows that fishers have substituted from regulated to unregulated inputs over the period 1990 2000 and technical efficiency has declined coincident with increasing restrictions on vessel size and engine capacity the decline in technical efficiency indicates that the goal of the regulator to increase economic efficiency has not been realized