spoilt for choice multinational corporations and the geography of international production this paper questions the view that foreign direct investment fdi is producing an integrated world production and trading system although multinational firms have a greater choice of locations than in the past their recent investments abroad have taken place within a regional rather than global framework the upsurge of fdi flows from north to south has been attracted by just a handful of fast growing developing countries the paper disputes the claim that the road to development is for poor countries to attract fdi on the scale observed in such countries as malaysia this claim involves a fallacy of composition while fdi can make a valuable contribution most countries will have to rely mainly on their own resources and indigenous producers the paper argues that current proposals for a multilateral agreement on investment neglect both the regional aspects of integration and the need of poorer countries to promote their domestic supply capabilities conflicts of interest which are ignored in the current rhetoric suggest the continuing relevance of a strategic policy approach to international production copyright 1998 by oxford university press

invariance in growth theory and sustainable development abstract this paper analyzes the general concept of sustainability from a different point of view than that generally found in the literature if sustainability is defined as the requirement to keep something constant or at least non decreasing throughout time the choice of the thing to be preserved is controversial neo classical models mainly assume that sustainability requires that consumption or a utility level has to be preserved in this paper we object to this a priori conception of sustainability and define all the quantities that can be preserved in neo classical optimal growth models we thus wonder if invariant quantities can be found along the optimal paths defined by a classical representation of an economy with an exhaustible resource we use the noether theorem to determine the conservation laws of dynamic systems we examine under which conditions there is such invariance and how it could be interpreted as a sustainability indicator we emphasize the limits of the economic growth theory for coping with the sustainability issue

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

economics and sustainability balancing trade offs and imperatives the concept of sustainability has been increasingly invoked in scholarly and public policy debates discussion has been hampered however by uncertainty and lack of uniformity in the meaning of sustainability this paper seeks to identify some common ground among economists ecologists and environmen tal ethicists two issues seem salient require ments for intergenerational and the defi nition of social capital to be provided to future generations a concept of safe minimum standard which has received at least some recognition in the ecology philosophy and eco nomics literatures may provide the beginnings of a common ground for debate about sus tainability jel q2

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

insurance moral hazard and chemical use in agriculture this paper examines how crop insurance affects corn farmers fertilizer and pesticide use in the u s midwest crop insurance might be expected to affect chemical use because of moral hazard insured farmers may undertake riskier production than do uninsured farmers results suggest that insurance exerts considerable influence on corn farmers chemical use decisions those purchasing insurance applied significantly more nitrogen per acre 19 spent more on pesticides 21 and treated more acreage with both herbicides and insecticides 7 and 63 than did those not purchasing insurance these results suggest that both fertilizer and pesticides may be risk increasing inputs

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

sustainable growth renewable resources and pollution abstract our intention is to present a growth model with an environmental resource which has its own regeneration process the stock of this resource serves as a source of utility and an input to production we also intend to introduce a negative externality caused by a pollution flow which we assume to be proportional to production in the context of this model it is shown that by using the utility level of the green golden rule as a generalization of the ramsey s bliss point for solving an optimal growth problems with a zero discount rate an optimal path converges to the green golden rule configuration

wages and foreign ownership a comparative study of mexico venezuela and the united states abstract this paper explores the relationship between wages and foreign investment in mexico venezuela and the united states despite very different economic conditions and levels of development we find one fact that is robust across all three countries higher levels of foreign investment are associated with higher wages however in mexico and venezuela foreign investment is associated with higher wages only for foreign owned firms there is no evidence of wage spillovers leading to higher wages for domestic firms the lack of spillovers in mexico and venezuela is consistent with significant wage differentials between foreign and domestic enterprises in the united states where the evidence suggests some wage spillovers from foreign to domestic enterprises wage differentials are smaller

the costs and benefits of refuge requirements the case of bt cotton abstract refuge requirements have been the primary regulatory tool to delay pest resistance to bt crops this paper presents a simple method to estimate the annual cost of refuges to producers applying it to bt cotton it also examines broader welfare impacts estimating how bt cotton acreage restrictions affect producer surplus consumer surplus seed supplier profits and commodity program outlays the implications of grower adoption behavior partial adoption aggregate adoption and refuge choice for regulatory costs are examined empirical examples illustrate how providing multiple refuge options significantly reduces regulatory costs

rawlsian intergenerational justice as a markov perfect equilibrium in a resource technology the rawlsian maximin criterion is combined with nonpaternalistic altruistic preferences in a nonrenewable resource technology the maximin programme is shown to be time inconsistent for a subset of initial conditions a solution to this intergenerational conflict is found under a given assumption as a generically unique subgame perfect equilibrium

human development and economic sustainability abstract this paper attempts to integrate the concern for human development in the present with that in the future in arguing for sustainable human development it appeals to the notion of ethical universalism an elementary demand for impartiality of claims applied within and between generations economic sustainability is often seen as a matter of intergenerational equity but the specification of what is to be sustained is not always straightforward the addendum explores the relationship between distributional equity sustainable development optimal growth and pure time preference

a contribution to the theory of welfare accounting a kind of unified theory is proposed as a dynamic generalization of the standard consumer surplus methodology for evaluating welfare changes the unified theory allows rigorous dynamic welfare comparisons to be inferred between any two economic situations from just knowing current incomes and observing a short run market demand schedule essentially the change in present discounted future utility is exactly captured by the formula difference in current income plus consumer surplus this well known formula is thereby shown to cover a far wider class of welfare comparisons than is customarily treated in the textbook static case

agriculture natural resources and environmental accounting in this paper we develop atheoretically consistent framework to incorporate theenvironmental effects of agricultural production andthe depletion of natural capital caused byagricultural production into the existing incomeaccounts we apply the framework and adjust theincome attributed to the agricultural sector andeconomy wide net national product nnp for the unitedstates estimated adjustments to the incomeattributed to agriculture are in the range of 4billion and have declined as a percentage of net farmincome since 1982

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

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

resource depletion and sustainability in small open economies abstract exogenous price changes affect the amount that a small country exporting natural resource commodities must invest to sustain its consumption level the necessary amount is given by the difference between hotelling rent and the discounted sum of future terms of trade effects capital gains the latter term is found to be large relative to the former in the case of petroleum depletion in indonesia this suggests that resource rich countries will need to invest more than previously expected to sustain their consumption levels if natural resource prices continue their long term historical decline

sustainable growth with environmental spillovers in this paper we apply the approach of ramsey and koopmans to the problem of optimal and sustainable growth under plausible assumptions intertemporal neutrality implies that the optimal growth path is sustainable without the contrivance of a sustainability constraint the model is extended to cases involving environmental disamenities the solutions equivalently solve the problem of maximizing net national product adjusted for depreciation in natural capital and environmental effects green net national product in this framework is constant over time thus avoiding the paradox of declining sustainable income

being virtuous and prosperous sri s conflicting goals can sri be a means to make investors both virtuous and prosperous this paper argues that there can be significant tensions between these goals and that sri and indeed all investment should not allow the pursuit of maximizing investment returns to prevail over an ethical agenda of promoting social and economic justice and environmental protection the discourse on sri has changed dramatically in recent years to the point where its capacity to promote social emancipation sustainable development and other ethical goals is in jeopardy historically sri was a boutique sector of the market dominated by religious based investors who sought to invest in accordance with the tenets of their faith from the early 1970s the aspirations of the sri movement morphed significantly in the context of the divestment campaign against south africa s apartheid regime no longer were social investors satisfied with just avoiding profit from immoral activities instead they also sought to change the behavior of others business case sri is a problematic sri benchmark for several reasons often there is a countervailing business case for financing irresponsible activities given the failure of markets to capture all social and environmental externalities secondly even if investors care about such concerns there may be no means of financially quantifying their significance for investment purposes and thirdly even if such factors can be financially quantified they may be deemed to be such long term financial costs or benefits that they become discounted and ignored the ethics case for sri and ethical business practices more generally takes the view that both investors and the companies they fund have ethical responsibilities that trump the pursuit of profit maximization ethical investment should be grounded on this foundation however it may not be enough to keep ethical investment ethical will likely require institutionalizing new norms and governance standards in such domains as reforming fiduciary duties and the internal governance of financial organizations sri s own codes of conduct including the unpri have yet to demonstrate the robustness to move the financial community beyond business as usual

limits to substitution and irreversibility in production and consumption a neoclassical interpretation of ecological economics abstract there are many methodological approaches within ecological economics one of the principal modes of analysis is a modified version of the standard neoclassical model this paper examines the parallels which emerge between the ideas of some ecological economists concerning production and the ideas of others concerning consumption when these ideas are interpreted in the neoclassical paradigm it is well known that ecological economics is characterized by arguments concerning limits to substitution between inputs energy natural capital etc vs manufactured capital labor etc in production and the implications these have for sustainability however various authors have also expressed concerns regarding limits to substitution in consumption either between environmental assets and other goods or between basic needs commodities and other goods though the specific reasons for non substitution are different in the production and consumption cases the underlying theme is that individual commodities and other inputs have unique physical or other properties which make them poor substitutes ideas about irreversibility in production and economic development are also prominent in ecological economics likewise many authors have argued for similar irreversibilities in consumption behavior in analogy to the term technological change i coin the term preferential change to describe these phenomena the linking themes in this case are that the economy environment system is evolutionary in character and that external effects intended and unintended consequences of actions or processes imposed on other parties or resources are all pervasive

nonrenewable resource scarcity nonrenewable resource theory often is summarized by hotelling s rule this paper reviews theoretical extensions and empirical investigations of resource extraction models observed data are often inconsistent with the hotelling rule suggesting that other characteristics of nonrenewable resource supply including exploration heterogeneous ore quality technological progress and capital investment are important determinants of the dynamic behavior of resource prices given the persistent recurrence of concern about nonrenewable resource scarcity measures of nonrenewable resource scarcity and the empirical evidence for the time trends of those measures are reviewed finally the implications of nonrenewable resource scarcity for economic growth are examined

living in an uncertain world environment substitution local and global indeterminacy abstract environmental problems are increasingly frequent intensive and unpredictable to protect from the observed environmental depletion economic agents increasingly react by substituting previously free public environmental goods with costly private goods this substitution mechanism however can contribute to enhance the indeterminacy of the possible consequences of mankind activity further increasing the uncertainty on the future environmental trajectories to investigate this issue the paper proposes an intertemporal optimization problem in which agents derive utility from three goods leisure a public environmental good and or private consumption that can be used as a substitute for the environment the analysis shows that the economy may end up being trapped in the pareto dominated steady state and that both local and global indeterminacy may arise in the model no indeterminacy however emerges if green technologies are used so that production has no negative effects on the environment

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

the roles of risk and ambiguity in technology adoption we study the impacts of risk and ambiguity aversion on the adoption of new technologies specifically genetically modified gm corn and soy seeds we conduct experiments measuring risk and ambiguity aversion with midwestern grain farmers risk aversion has only a small impact on the timing of adoption of gm soy while ambiguity aversion has a large impact speeding up farmer adoption of gm corn we hypothesize that this unusual finding is due to the fact that gm corn often contains an insect resistance trait which reduces the ambiguity of pest damages for adopters gm soy never contains this insect resistance trait this highlights the importance of distinguishing between risk and ambiguity when studying the effects of aversion to uncertainty on adoption of new technologies

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

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

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

the effects of shifts in a return distribution on optimal portfolios when the distribution of the returns of a risky asset undergoes a stochastically dominating shift a risk averse investor may not necessarily increase the investment in that asset this paper provides restrictions on the investor s utility function that are necessary and sufficient for a dominating shift to bring about no decrease in the investment in the respective asset if there are two risky assets in the portfolio these conditions are also necessary if there are n 2 assets and are necessary and sufficient if the utility function exhibits constant absolute risk aversion copyright 1990 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

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

the dutch disease and intergenerational welfare governments in resource abundant economies face a tradeoff between transferring wealth to present generations and saving for future generations employing an overlapping generations framework with endogenous growth this article analyses the intergenerational welfare effects of 1 a wealth transfer policy where the entire wealth is transferred to the generations alive at present 2 an income transfer policy where the wealth is saved and the permanent income of the wealth is transferred to all present and future generations forever not surprisingly present generations are unambiguously better off with the wealth transfer policy less trivially however the wealth transfer policy can be associated with higher welfare also for future generations the intuition for this result is that while a wealth transfer depresses growth only in the periods subsequent to the transfer income transfers constitute a permanent drag on growth perhaps counter to the naive intuition the policy of saving the wealth and

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

national accounts and environmental resources in the paper optimal growth theory is used to derive the appropriate definition of the net national product concept when there are environmental resources and environmental damage to take into account the basic conclusions are that conventional defined np should be corrected by deducting environmental damage and adding the value of the net change of all resources

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

pests and pesticides risk and risk aversion abstract theoretical and applied literature on risk in decision making for agricultural pest control is reviewed risk can affect pesticide decision making either because of risk aversion or because of its influence on expected profit it is concluded that risk does not necessarily lead to increased pesticide use by individual farmers uncertainty about some variables such as pest density and pest mortality does lead to higher optimal pesticide use under risk aversion however uncertainty about other important variables such as output price and yield leads to lower optimal levels of pesticide use neglect of these variables in most studies has led to the false assumption that pesticides are always risk reducing inputs furthermore there is evidence that in general the pesticide dosage which maximises expected profit is lower under risk than under certainty depending on the balance of forces to increase and decrease pesticide use under risk in many circumstances the net effect of risk on optimal decision making for pest control may be minimal the effect on risk of information about pest density and other variables as in integrated pest management programmes is discussed evidence on this issue is mixed a range of analytical techniques for analysing risk in pest control is reviewed throughout the paper gaps in the existing literature are identified

running out of steam manufacturing in malaysia this article examines the process of deindustrialisation in developing countries looking at the case of malaysia it provides a framework to examine how industrial structure and domestic technological capabilities are affected by the wider challenges of late industrialisation changes in global accumulation and domestic class formations it discusses the emerging evidence of malaysia s premature deindustrialisation and how this is the result of broader accumulation strategies that were primarily driven by internal factors related to the emergence of a malay middle class and supported by changes in global accumulation processes related to the development of global production networks and financialisation

losers and winners in economic growth this paper examines the growth rates in 116 economies from 1965 to 1985 it finds that the lowest quintile had an average growth rate of real gross domestic product gdp per capita of 1 3 percent whereas the highest quintile averaged 4 8 percent the authors isolate five influences that discriminate reasonably well between slow and fast growers a conditional convergence effect whereby a country grows faster if it begins with lower real gdp per capita in relation to its initial level of human capital in the forms of educational attainment and health a positive effect on growth from a high ratio of investment to gdp although this effect is weaker than that reported in some previous studies a negative effect from excessively large government a negative effect from government induced distortions of markets and a negative effect from political instability overall the fitted growth rates for eighty five economies for 1965 85 had a correlation of 0 8 with the actual values the authors also find that female educational attainment has a pronounced negative effect on fertility whereas female and male attainment are each positively related to life expectancy and negatively related to infant mortality

stabilization and adjustment in a small open economy ireland 1979 1995 at the end of the 1970s the irish economy was faced with an unsustainable current account deficit rising unemployment high inflation and a rapidly increasing public debt by the mid 1990s ireland s growth rate was the highest in the oecd unemployment was declining rapidly the current account was in surplus and the country seemed likely to meet the maastricht financial and fiscal convergence criteria domestic absorption has been sharply reduced despite a mild appreciation of the real exchange rate external competitiveness measured in terms of relative unit wage costs in a common currency improved dramatically owing to the sharp increase in the share of foreign direct investment fdi in total capital formation while the fiscal correction of the late 1980s helped restore private sector confidence and was indispensable for progress on financial convergence the boost to labour productivity given by the increased inflow of fdi is credited with the key role in the economy s transformation copyright 1996 by oxford university press

optimal environmental taxation in the presence of other taxes general equilibrium analyses this paper examines the optimal setting of environmental taxes in economies where other distortionary taxes are present we employ analytical and numerical models to explore the degree to which in a second best economy optimal environmental tax rates differ from the rates implied by the pigovian principle according to which the optimal tax rate equals the marginal environmental damages both models indicate contrary to what several analysts have suggested that the optimal tax rate on emissions of a given pollutant is generally less than the rate supported by the pigovian principle moreover the optimal rate is lower the larger are the distortions posed by ordinary taxes numerical results indicate that previous studies may have seriously overstated the size of the optimal carbon tax by disregarding pre existing taxes this abstract was borrowed from another version of this item

competing for a duopoly international trade and tax competition we analyse the tax subsidy competition between two potential host governments to attract the plants of rms in a duopolistic industry competition between identical countries for a monopoly rm s plant is known to result in subsidy in ation which leaves the winning country indierent towards hosting the rm in sharp contrast we show that with two rms both are taxed in equilibrium and the host countries appropriate the entire social surplus generated within the industry despite the explicit non cooperation between governments we extend our baseline model to allow for dierences in country size we investigate when this size asymmetry becomes su ciently large to change the nature of the equilibrium inducing concentration of production in the larger country

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

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

sustainability policy and environmental policy a theoretical representative agent economy with a depletable resource stock polluting emissions and productive capital is used to contrast environmental policy which internalises externalised environmental values with sustainability policy which achieves some form of intergenerational equity the obvious environmental policy comprises an emissions tax and a resource stock subsidy each equal to the respective external cost or benefit sustainability policy comprises an incentive affecting the choice between consumption and investment and can be a consumption tax capital subsidy or investment subsidy or a combination thereof environmental policy can reduce the strength of the sustainability policy needed more specialised results are derived in a small open economy with no environmental effects on utility

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

trade restraints and japanese direct investment flows abstract this paper analyses the factors determining the scale and location of japanese foreign direct investment fdi over the 1980s we use a pooled cross section time series annual data set covering investment in the individual ec countries and the united states our results suggest that controlling for market size and relative labour costs investment was significantly influenced by trade protection measures and in particular by the level of anti dumping actions initiated in the last decade an additional effect from the cost of finance in japan is found suggesting that the tightening of monetary policy in japan in 1989 90 contributed significantly to the observed slowdown in fdi in the early 1990s

a nonparametric approach to identifying latent relationships in hierarchical models this paper provides a method for nonparametrically modeling the relationship between consumer preference for product features such as reliability or durability and covariates that describe consumers and how they use the product this relationship is of interest to firms designing and delivering products to a market because the extent to which consumers are sensitive to particular features determines the potential profitability of product offerings and affects decisions relating to appropriate distribution outlets and advertising strategies the successful identification of these relationships also aids in efficiently targeting marketing activities to specific segments of the consumer population the relationship between consumer preference for product features and observable covariates is important but is typically unknown in addition these relationships are often deeply embedded in a model hierarchy and are not observed directly for example in models of household choice the observed outcomes are multinomial with probabilities driven by latent utilities or values that consumers place on the choice alternatives these utilities are in turn a function of characteristics such as price and product features which are differentially valued of primary interest is the relationship between consumer sensitivity to product characteristics and readily observed covariates such as household demographics or aspects of product usage because the relationships of interest are not directly observed it is difficult to draw inferences about them without formal statistical models this paper presents a three level hierarchical bayes model for modeling binary consumer preferences as a function of observable covariates the hierarchical model nonparametrically estimates the relationships between consumer preferences for product features and the covariates without assuming a specific functional form a nonparametric model is particularly useful in the exploratory analysis of consumer data in which the primary purpose of the analysis is to generate further questions rather than provide specific answers to well posed questions this type of analysis is frequently encountered in marketing where a series of studies are commissioned to better understand the nature of demand the first level of the hierarchy in the bayesian model relates the binary consumer choice to the sensitivities of the consumer to product attributes such as brand name price reliability and durability the second level of the hierarchy models the heterogeneity across consumers using functions that relate attribute sensitivities to observable covariates this level of the hierarchy also allows each respondent to have unique demand coefficients by introducing random effect components the third level of the hierarchy specifies a smoothness prior for each of the unknown functions used in the second level the approach is flexible and works well both when the unknown function can be closely approximated by a linear function and when it cannot be a bayesian model selection technique is used to determine which functions can be modeled using a linear function and which ones should be modeled nonparametrically to provide the necessary flexibility to estimate the function accurately the proposed methodology is illustrated using data from a survey of consumer preferences for features of marine outboard engines that was collected as part of a consulting project our analysis focuses on measuring consumer preferences for engine features and their relationships to two variables related to boat length and engine size consumer preferences for engine features were obtained through a national survey conducted over the telephone preferences were elicited by means of a pairwise evaluation in which respondents chose between two engines that were identical in every respect except for two engine features the methodology can be modified to allow for more complex comparisons such as conjoint data collected in full profiles the application of a bayesian model selection procedure indicates that 4 of the 28 covariate relationships in the model are nonlinear while the other 24 are linear the preferences associated with these four functions are involved in 56 of the pairwise comparisons in the study therefore in practice if the nonlinear functions are not properly estimated there is the potential to draw misleading inferences regarding 56 of the pairwise choices firms can use the estimates of the functions relating preferences to covariates in a number of ways first they can use the covariates to determine the total number of consumers who have high demand for a particular product feature and then they can target communication efforts to those individuals alternatively the empirical results can be used as a basis of subsequent analysis to obtain a more complete characterization of a market segment

a mixed bentham rawls criterion for intergenerational equity theory and implications abstract this paper proposes a welfare criterion that balances the need for development and the concern for the least advantaged generations and explores its implications this criterion called the mixed bentham rawls criterion moderates the effect of discounting yet permits some degree of intertemporal trade off it is a weighted average of two terms a the sum of discounted utilities and b the utility level of the least advantaged generation we derive necessary conditions to characterize growth paths that satisfy our criterion and show that in some models with familiar dynamic specifications an optimal path exists and displays appealing characteristics

the boundaries of multinational enterprises and the theory of international trade this paper begins with a review of empirical evidence on multinational firms conceptual underpinnings of a theory are developed relying in particular on the notion of knowledge capital as a mobile joint input into geographically separated production facilities this idea is embedded in a simple two country general equilibrium model that supports multinational production in equilibrium under conditions consistent with the empirical evidence the final section examines internalization and shows why certain properties of knowledge capital also imply a preference for transferring technologies internally within the firm rather than through arm s length markets

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

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

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

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

overlapping generations or infinitely lived agents intergenerational altruism and the economics of global warming do we need an overlapping generations model for the economics of global warming to answer this question an infinitely lived agent ila approach and an overlapping generations olg model are contrasted ila and olg can be viewed as polar representations of intergenerational altruism with ila an immortal agent acts through his investment savings decisions as trustee on the behalf of the future generations with olg agents need not behave altruistic they simply save during working years and dissave completely during retirement nevertheless ila and olg must not differ in their implication for greenhouse policy greenhouse gas abatement is a straightforward alternative to physical capital formation and even without altruism each age cohort has an incentive to provide current abatement in order to reduce future damages attributable to climate change indeed under reasonable assumptions and parameter values our simulations reveal such an invariance result provided carbon taxes are the only policy tool and tax revenues are recycled through socially mandated rules projections of economic growth climate change and energy consumption are only insignificantly affected by the choice of approach

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

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

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

portfolio capital flows hot or cold a distinction is often made between short term and long term capital flows the former are deemed unstable hot money and the latter are deemed stable cold money using time series analysis of balance of payments data for five industrial and five developing countries we find that in most cases the labels short term and long term do not provide any information about the time series properties of the flow in particular long term flows are often as volatile as short term flows and the time it takes for an unexpected shock to a flow to die out is similar across flows long term flows are also at least as unpredictable as short term flows and knowledge of the type of flow does not improve the ability to forecast the aggregate capital account copyright 1995 by oxford university press

can the east asian model of development be generalized abstract export led growth has become increasingly popular among analysts and some governments as a development strategy besides contrasting its virtues to the distortions of the import substitution model popular through the 1960s advocates of the model frequently illustrate its merits by pointing to the remarkable success of its most prominent practitioners the east asian gang of four hong kong korea singapore and taiwan this study explores a possible limitation of the model known as the fallacy of composition while the model may work well if pursued by a limited number of countries it may break down if a large majority of developing countries seeks to pursue it at the same time because the resulting outpouring of manufactured exports might be more than western markets could absorb protectionist response might be the result of attempts to generalize the east asian export model of growth

globalization outsourcing and wage inequality there is considerable debate over whether international trade has contributed to the declining economic fortunes of less skilled workers one issue that has become lost in the current discussion is how firms respond to import competition and how these responses in turn are transmitted to the labor market in previous work we have argued that outsourcing by which we mean the import of intermediate inputs by domestic firms has contributed to an increase in the relative demand for skilled labor in the united states if firms respond to import competition from low wage countries by moving non skill intensive activities abroad then trade will shift employment towards skilled workers within industries in this paper we extend our previous work by combining new import data from the revised nber trade database with disaggregated data on input purchases from the census of manufactures we construct industry by industry estimates of outsourcing for the period 1972 1990 and reexamine whether outsourcing has contributed to an increase in relative demand for skilled labor our main finding is that outsourcing can account for 31 51 of the increase in the relative demand for skilled labor that occurred in u s manufacturing industries during the 1980s compared to our previous estimate of 15 33 this abstract was borrowed from another version of this item

technological uncertainty and the theory of the firm several recent articles 1 6 have generalized the theory of the firm to incorporate price uncertainty and risk aversion it is now well known that the risk averse entrepreneur will select that level of output at which the expected price equals the marginal cost plus the marginal risk premium leland 5 provides a similar generalization given demand uncertainty however in each case the assumption of a well specified technology is maintained this paper complements and generalizes the earlier work on the theory of the firm by investigating the effect which technological uncertainty has on the firm s optimal production decision like the earlier work on the theory of the firm we show that the firm selects the level of input at which the expected marginal productivity equals the factor price plus the marginal risk premium unlike the earlier work we show that the sign of the marginal risk premium is not always positive and that it depends on the structure of the firm s technology we show that the distinction between price and technological uncertainty is important because each can lead to different implications for firm behavior like its predecessors the model of the firm presented here assumes a single ownerentrepreneur who makes the production decision we modify the baron and sandmo models by assuming that the entrepreneur knows the cost of each production decision but not the output as a result the entrepreneur s decision yields a random variable denoting output and a linear transformation of it denoting profit the entrepreneur chooses the random variable denoting profit to maximize his expected utility there are at least three distinct ways in which our notion of technological uncertainty may be interpreted first the entrepreneur may not know the location of the production surface in this case each production decision yields a random output an increase in the

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

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

intra industry trade and investment under oligopoly the role of market size this paper examines the factors which influence intra industry trade under oligopoly it argues that major determinants are the size of markets and the height of trade barriers if national markets are large and trade barriers high intra industry trade is replaced by cross investment between countries whereby firms serve the markets of their foreign rivals by investing abroad instead of exporting this result is established formally using a simple two country two firm game theoretic model the same model is also used to examine how barriers to trade influence prices and output the paper concludes with a brief discussion of how economic growth affects the volume of intra industry trade copyright 1992 by royal economic society

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

localization of industry and trade performance this paper reviews recent literature on the spatial agglomeration of economic activity this literature provides new ways of thinking about the determinants of the location of production of trade flows and of international income differences agglomeration of activity arises out of the tension between product market and factor market competition which encourage a dispersed pattern of location and externalities between firms technological or pecuniary which promote agglomeration using a framework in which intermediate goods create forward and backward linkages the paper shows how economic integration may cause agglomeration and then discusses the implications of this for real income and for economic policy copyright 1996 by oxford university press

risk and the value of bt corn a conceptual model is developed to evaluate the effect of bt corn on risk results highlight the importance of distinguishing between marginal and aggregate risk effects and demonstrate that the effect of bt corn on risk depends crucially on the price paid for the technology empirical results show that depending on the price bt corn can be marginally risk increasing or decreasing and can either increase or decrease corn acreage also depending on the price bt corn can provide a risk benefit to farmers even when bt corn is risk increasing bt corn is genetically engineered to produce a protein found in the soil bacterium bacillus thuringiensis bt the protein is toxic to lepidopterous insects such as the european

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

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

scarcity resource price uncertainty and economic growth over the course of the past decade significant steps have been taken to empirically link indicators of resource scarcity to changes in economic growth this paper extends this previous literature in two ways first rather than concentrating exclusively on energy we focus on the technological change embodied in the prices of an array of complementary natural resource inputs second we investigate using g arch methods the importance of resource price uncertainty as well as resource price levels on aggregate economic growth we find that output growth is significantly influenced by both resource price levels and resource price uncertainty

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

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

budgetary and producer welfare effects of revenue insurance legislation passed in 1996 changed the way the u s federal government acts to reduce risks faced by u s crop products the authors compare the new alternative forms of revenue insurance to the 1990 deficiency payment program and to a no program alternative they estimate the effects of the alternative polices on the acreage allocations of a representative farm on the expected government cost and on producer welfare simulation results indicate that a revenue insurance scheme that guarantees 75 percent of expected revenue to risk averse produced could provide approximately the same level of benefits as the 1990 program at as little as one fourth the cost

nonparametric regression techniques in economics this introduction to nonparametric regression emphasizes techniques that might be most accessible and useful to the applied economist the paper begins with a brief overview of the class of models under study and central theoretical issues such as the curse of dimensionality the bias variance trade off and rates of convergence the paper then focuses on kernel and nonparametric least squares estimation of the nonparametric regression model and optimal differencing estimation of the partial linear model constrained estimation and hypothesis testing is also discussed empirical examples include returns to scale in electricity distribution and hedonic pricing of housing attributes

wealth natural capital and sustainable development contrasting examples from botswana and namibia theoretical work has demonstrated that sustainable development requires non declining per capita wealth where wealth is defined to include produced natural human and social capital several studies have attempted to measure total national wealth or changes in wealth but have been seriously hampered by a lack of data especially for natural and human capital to address this problem the un and other international statistical agencies developed a standardized framework for environmental accounts the system of integrated environmental and economic accounts seea using the newly available asset accounts for natural capital national wealth accounts are constructed and used to assess the contrasting development paths of botswana and namibia botswana with an explicit policy of reinvestment of resource rents has roughly tripled per capita wealth and national income over the past two decades namibia with no explicit policy to use natural capita to build wealth has seen per capita wealth and income decline

national wealth and net national product solow 1986 established that corresponding to constant consumption programs with essential exhaustible resource stocks there was a capital value that was remaining constant he thus obtained a hick s type of result namely that current consumption left capital intact solow was using weitzman 1976 as a point of departure it turns out that there is a quite general solow type of result namely that nnp t is interest on the value of accumulated capital v t where v t can include diminutions in natural resource stocks and the interest rate is the social discount rate a weitzman 1976 result is that nnp t is interest on capital where capital is discounted future optimal consumption the interest rate being the discount rate there is then an attractive duality here forward views of capital discounted future optimal consumption programs at date t coincide with backward views of capital current value of accumulated stocks at date t first we observe the weitzman result as the solved bellman equation in dynamic programming this leads directly to the result that nnp t is interest on the value of accumulated capital next we re work the derivations with an essential exhaustible resource and then with endogenously produced knowledge