carbon dioxide emissions and governance a nonparametric analysis for the g 20 this paper applies nonparametric estimators to examine countries carbon dioxide co2 emissions and governance relationship by using data for the time period 1996 2010 of the twenty largest economies group of twenty g 20 the dynamics of the considered relationship are analyzed six governance measures are included in our analysis voice and accountability political stability and absence of violence government effectiveness regulatory quality rule of law and control of corruption as have been defined in world governance indicators from the world bank the empirical findings reveal a nonmonotonic relationship between countries co2 emissions and the examined governance measures in addition and with respect to the environmental policy makers a significant difference on the number of governance measures influencing countries carbon dioxide emissions which is subject to countries specific regional and development variations is recorded finally the carbon dioxide emissions governance relationship is highly nonlinear and appears that countries higher governance quality does not always result to lower carbon dioxide emission levels

political instability corruption and policy formation the case of environmental policy abstract this paper develops a theory of environmental policy formation taking into consideration the degree of corruptibility and political turbulence the predictions that emerge are that the interaction between the two variables is important political instability has a negative effect on the stringency of environmental regulations if the level of corruption is low but a positive effect when the degree of corruption is high corruption reduces the stringency of environmental regulations but the effect disappears as political instability increases the empirical findings are fully consistent with the predictions of the model

household coping in war and peacetime cattle sales in rwanda 1991 2001 abstract the economic literature has given due attention to household coping strategies in peacetime in contrast little is known about such strategies in wartime this paper studies the use of cattle as a buffer stock by rwandan households during 1991 2001 a period characterized by civil war and genocide it is found that the probability of selling cattle increases upon the occurrence of both peacetime and wartime covariant adverse income shocks the peacetime cattle sales are largely explained by shifts in the household asset portfolio in contrast in 1994 the year of the genocide almost half of the cattle sales were motivated by the need to buy food however we argue that the effectiveness of this coping strategy was severely reduced due to the wartime conditions first during the year of ethnic violence cattle prices plummeted to less than half of their pre genocide value second we find that households most targeted in the violence did not sell cattle we discuss several explanations for this latter finding

natural capital and the theory of economic growth abstract during the past half century theorizing about economic growth has forced economists to reconsider and revise the capital concept a number of times this paper explores the analytical relationship between capital accumulation and economic growth on the one hand and the natural world on the other section 1 sketches modern growth theory with an emphasis on whether or not the economy is seen as facing biophysical limits to growth section 2 argues that analysis of the role that natural capital plays in the production process must occur before one can assess the prospects for economic growth section 3 inserts natural capital into a simple growth model and discusses the implications that 1 depletion of natural capital 2 complementarity in production of natural and social forms of capital and 3 accumulation of technical knowledge have for the growth process

aid and growth what meta analysis reveals abstract recent literature in the meta analysis category where results from a range of studies are brought together throws doubt on the ability of foreign aid to foster economic growth and development this article assesses what meta analysis has to contribute to the literature on the effectiveness of foreign aid in terms of growth impact we re examine key hypotheses and find that the effect of aid on growth is positive and statistically significant this significant effect is genuine and not an artefact of publication selection we also show why our results differ from those published elsewhere

long run welfare under externalities in consumption leisure and production a case for happy degrowth vs unhappy growth in this paper we contribute to the debate on the relationship between growth and well being by examining an endogenous growth model where we allow for externalities in consumption leisure and production we analyze three regimes a decentralized economy where each household makes isolated choices without considering their external effects a planned economy where a myopic planner fails to recognize both leisure and consumption externalities but recognizes production externalities and a planned economy with a fully informed planner we first compare the balanced growth paths under the three regimes and then we numerically investigate the transition to the optimal balanced growth path we provide a number of findings first in a decentralized economy growth or labor or both are greater than in the regime with a fully informed planner and hence are sub optimal from a welfare standpoint second a myopic intervention which overlooks consumption and leisure externalities leads to more growth and labor than in both the decentralized and the fully informed regime third we provide a case for happy degrowth a transition to the optimal balanced growth path that is associated with downscaling of production a reduction in private consumption and an ongoing increase in leisure and well being

inequality and the environmental kuznets curve abstract is income inequality harmful to the environment the answer to this question has not reached a consensus in the literature this study seeks to provide insight into this question by examining the influence of income inequality on the environmental kuznets curve ekc i e the impact of income inequality on the ekc turning point two potential mechanisms through which inequality may affect the ekc turning point by reducing public demand for environmental protection and by increasing a power of capital owners to prevent such protection using a large sample n 170 174 of countries we find evidence of the ekc for so2 emissions and income inequality has a significant impact on the ekc turning point income inequality increases the ekc turning point suggesting that high inequality can be damaging to the environment the results are robust to potential outliers different data sources of income inequality a different so2 emissions measure changes in model specification different samples and an alternative estimation method we also find that inequality appears to be more important than corruption in determining the ekc turning point

lobbying by ethnic groups and aid allocation we develop a political economic model of foreign aid allocation each ethnic group in the donor country lobbies the government to allocate more aid to its country of origin and the government accepts political contributions from lobby groups initial per capita income of the recipients and those of the ethnic groups are shown to be important determinants of the solution of the political equilibrium we also examine the effects of changes in the degree of corruption aid fatigue and ethnic composition in the donor country on the allocation of aid

when is foreign aid policy credible aid dependence and conditionality the author studies foreign aid policy within a principal agent framework he shows that one reason for foreign aid s poor overall record may be a moral hazard problem that shapes the aid recipient s incentive to undertake structural reform the model s basic prediction is a two way relationship disbursements of foreign aid are guided in part by the needs of the poor anticipating this recipients have little incentive to improve the welfare of the poor preliminary econometric work shows that the data support this hypothesis in principle conditionality could partly solve this problem but only if the donor can make a binding commitment to increase disbursements in good relative to bad states without such a commitment technology aid disbursements remain guided by the needs of the poor and recipient countries maintain a low effort to reduce poverty contrary to the conventional wisdom found in the aid literature the author shows that the welfare of all parties might be improved by using tied project aid or by delegating part of the aid budget to an international agency with less aversion to poverty

knowledge and the environment some recent analyses suggest that future increases in knowledge will more or less automatically alleviate or even eliminate future environmental problems here we examine this issue first we discuss whether a knowledge explosion is indeed occurring addressing some of the problems with assessing knowledge growth we next consider whether growth in knowledge will help the environment we ask whether future advances in knowledge are likely to assure benign environmental outcomes and discuss physical limitations of reducing resource consumption finally we outline policy interventions that would help produce and implement environmentally helpful knowledge although knowledge growth can help attenuate future environmental problems we are skeptical as to the ability of advances in knowledge to offset fully the adverse environmental impacts of continued growth of population and per capita consumption the ongoing shift from a material based to a services based economy reduces but does not eliminate the significant environmental impacts associated with the increasing scale of economic output in addition the ability of the economy to replace certain key natural resource inputs with knowledge inputs must eventually encounter limits public policy has a crucial role both in discouraging environmentally damaging forms of consumption and in promoting the generation and diffusion of environmentally beneficial knowledge 1999 elsevier science b v all rights reserved

effects of public and private expenditures on environmental pollution a dynamic heterogeneous panel data analysis abstract this paper examined the impact of expenditures of household firm and government on aggregate and sectoral carbon emissions in the world economies during 1990 2015 the modified heterogeneous panel data technique was used to estimate both carbon emission and income models from which both the direct and indirect effects of expenditure categories were estimated along with long run and short run analyses empirical results indicate that in the long run the negative direct effect of government expenditure was reduced by the positive indirect effects leading to positive total effect on aggregate carbon emission however in the short run the negative direct effect was enhanced by the negative indirect effect culminating into negative total effect further in the long run the positive direct effect of investment expenditure was reduced by the negative indirect effects resulting into negative total effect on aggregate carbon emissions however the negative short run direct effect was reduced by the positive indirect effect leading to marginal positive total effect the total direct effect of household consumption spending was negative in the long run and could be relatively large in the short run the effect of the household expenditure on sectoral carbon emissions was negative while that of private investment was positive and that of public spending was diverse the policy lessons include the need to conduct value chain environmental pollution implications of any expenditure policy

stocks flows and complementarity formalizing a basic insight of ecological economics abstract in this paper we focus on expressing in mathematical form the following statement of ecological economics a vital role of nature in production is yielding resource flows that are transformed by the fund of man made capital the flow of resources and the fund of man made capital are fundamentally complements see e g an introduction to ecological economics 1997 100 or beyond growth the economics of sistainable development 1996 22 we formulate a simple economic growth model expressing that statement and contrast it with a model that makes production depend on the total fund of natural capital while both models lead to an a priori limit to total output of man made capital their dynamics at the point where the natural resource constraint becomes binding differ greatly assuming production to depend on the total fund of natural capital leads to an early and relatively smooth decline in production while in our model the resource scarcity only makes itself felt when the resources are virtually exhausted with catastrophic results starting from the standard formulation using the minimum function we proceed to explore more flexible ways of expressing complementarity mathematically we describe what conditions a production function must fulfill if it is to exhibit fundamental complementarity combined with some substitutability at the margin and point out a class of algebraically simple functions that do so we then extend the discussion of complementarity between man made and natural capital from production to utility one of the consequences of such complementarity turns out to be that uneconomic growth is possible even at very low initial income levels

agricultural production amid conflict separating the effects of conflict into shocks and uncertainty abstract this paper examines the effect of conflict on agricultural production of small farmers first an inter temporal model of agricultural production is developed in which the impact of conflict is transmitted through violent shocks and uncertainty brought about by conflict we test the model using a unique household survey applied to 4800 households in four micro regions of colombia our findings suggest households learn to live amid conflict albeit at a lower income trajectory when presence of non state armed actors prolongs farmers shift to activities with short term yields and lower profitability from activities that require high investments if violence intensifies in regions with presence of non state armed actors farmers concentrate on subsistence activities

sulfur dioxide so2 emissions and government spending on environmental protection in china evidence from spatial econometric analysis abstract this study pays attention to a rarely discussed but important issue regarding the influence of the government s environmental protection expenditure on sulfur dioxide so2 emissions in china under consideration of the potentially spatial dependence of so2 emissions a panel dataset of 30 provinces from 2008 to 2013 is utilized to estimate the panel spatial durbin models the main findings of this study are that so2 emissions can be effectively reduced by government spending on environmental protection and that the relationship between so2 emissions and gross regional product grp per capita in china is cubic polynomial n shaped in addition as direct investment from foreign countries toward china increases so2 emissions will be reduced the trade factor also plays an important and negative role in so2 emissions provinces with higher shares of secondary industries to total grp will have more so2 emissions the investment completed in the treatment of industrial pollution in the private sector can effectively reduce so2 emissions and a higher population density causes a reduction in so2 emissions the coefficient of spatial autocorrelation is statistically positive confirming a positive spatial correlation also meaning a spatial competition of so2 emissions among provinces in china all these conclusions are consistent with those in previous works and with our expectations and remain the same while a two stage procedure is applied to cope with the potential endogeneity problem of grp with the exception of the effect of population density

toward a neoclassical theory of sustainable consumption eight golden age propositions abstract popular trends in ecological economics increasingly consign neoclassical economics to the sidelines of modern day relevancy the neoclassical tradition is often seen as reliant for its authenticity on a presumption of human avarice both unbridled consumerism and corporate cupidity and demanding for its real world applicability an assumption of continuous economic growth in a world of hard limits this article examines the question of whether neoclassical theory could instead provide keys to deeper understanding of sustainable consumption by combining in a single framework neoclassical growth theory general equilibrium theory and duality theory and by explicitly considering leisure time the analysis demonstrates that neoclassical economics yields several useful insights bearing on long term sustainability the analysis confirms several tenets of ecological economics and challenges others eight propositions emerge from this analysis that could help speed the development of a robust neoclassical theory of sustainable consumption here branded golden age propositions as they strongly echo the golden rule discoveries of edmund phelps

cowboys cornucopians and long run sustainability abstract in the 1970s there was a lively debate on the relationship between natural resource availability and long run economic growth one side has been characterized as neo malthusian it emphasized the limited global stockpile of critical natural resources from cobalt to petroleum and the need to curb population and economic growth the other side of the debate has been characterized as cornucopian it emphasized the creative powers of technology and free markets to find substitutes for any and all scarce resources this paper argues that the original dichotomy was false it did not adequately represent either the real positions of most conservative business and political leaders today nor did it reflect the currently emerging consensus among environmentalists the former do not concern themselves with long run issues at all nor do they take a global view of the problems of mankind rather they argue from the standpoint of short run national and corporate interest environmentalists on the other hand do not fit the neo malthusian world view which emphasizes the role of natural resources and land as factors of production and points to the limited supply of renewable resources and the inevitable exhaustion of non renewables the most important scarcities in the emergent environmentalist world view are largely outside the market domain soil fertility clean fresh water clean fresh air unspoiled landscapes climatic stability biological diversity biological nutrient recycling and environmental waste assimilative capacity there are no plausible technological substitutes for these the irreversible loss of species and ecosystems and the buildup of greenhouse gases in the atmosphere and of toxic metals and chemicals in the topsoil groundwater and in the silt of lake bottoms and estuaries are not reversible by any plausible technology that could appear in the next few decades finally the great nutrient cycles of the natural world carbon oxygen nitrogen sulfur and phosphorus require that constant stocks in each environmental compartment and balanced inflows and outflows these conditions have already been violated by large scale and unsustainable human intervention

what have we learned about policy and growth from cross country regressions economists have been seeking to comprehend why some countries are rich and others poor for well over 200 years a better understanding of the national policies associated with long run growth would both contribute to our ability to explain cross country differences in per capita incomes and provide a basis for making policy recommendations that could lead to improvements in human welfare recently economists have used cross country regressions to search for empirical linkages between longrun growth and indicators of national policies e g roger kormendi and philip meguire 1985 robert j barro 1991 the large cross country growth literature has identified various fiscal monetary trade exchange rate and financial policy indicators that are significantly correlated with longrun growth yet levine and david renelt 1992 show that many of these findings are fragile to small alterations in the conditioning information set that is small changes in the right hand side variables produce different conclusions regarding the relationship between individual policies and growth in this paper we take stock of what the profession has learned from cross country regression studies of policy and long run growth i limitations

confronting the environmental kuznets curve t he environmental kuznets curve posits an inverted u relationship between pollution and economic development kuznets s name was apparently attached to the curve by grossman and krueger 1993 who noted its resemblance to kuznets s inverted u relationship between income inequality and development in the first stage of industrialization pollution in the environmental kuznets curve world grows rapidly because people are more interested in jobs and income than clean air and water communities are too poor to pay for abatement and environmental regulation is correspondingly weak the balance shifts as income rises leading industrial sectors become cleaner people value the environment more highly and regulatory institutions become more effective along the curve pollution levels off in the middle income range and then falls toward pre industrial levels in wealthy societies the environmental kuznets curve model has elicited conflicting reactions from researchers and policymakers applied econometricians have generally accepted the basic tenets of the model and focused on measuring its parameters their regressions typically fitted to cross sectional observations across countries or regions suggest that air and water pollution increase with development until per capita income reaches a range of 5000 to 8000 when income rises beyond that level pollution starts to decline as shown in the conventional ekc line in figure 1 in developing countries some policymakers have interpreted such results as conveying a message about priorities grow first then clean up numerous critics have challenged the conventional environmental kuznets curve both as a representation of what actually happens in the development process and as a policy prescription some pessimistic critics argue that crosssectional evidence for the environmental kuznets curve is nothing more than a

the cost of fear the welfare effect of the risk of violence in northern uganda although the effects of insecurity are believed to be important these have never been directly measured previous estimates of the costs of conflict have only captured the joint effect of violence and insecurity the distinction is important for understanding the origins of the costs and for policy design spatially disaggregated measures of insecurity are created based on the spatial temporal variation in the placement of violence these are used to generate the first estimates of the relative causal contributions of the risk and experience of violence the article also provides the first micro data based counterpart to the cross country literature on the costs of conflict

unconditional aid and green growth abstract environmentally motivated aid can help developing countries to achieve economic growth while mitigating the impact on emission levels we argue that the usual practice of giving aid conditionally is not effective and we therefore study aid that is given unconditionally our framework is a differential open loop stackelberg game between a fully developed leader country and a developing follower country the leader chooses the amount of mitigation aid given to the follower which the follower either consumes or invests in either costly non polluting capital or cheap high emission capital we show that giving aid conditionally is only rarely effective and if so is based on a forced intertemporal savings effect in all other cases it is ineffective at best and counterproductive at worst moreover we find that the leader gives unconditional mitigation aid only when sufficiently rich or when caring sufficiently about environmental quality if unconditional aid is given in steady state it decreases the steady state level of high emission capital and capital investments in the recipient country as well as the global pollution stock but it has no effect on the levels of non polluting capital and non polluting investments transitional aid accelerates the economic growth of the follower moreover we find that the increase in growth takes place in the non polluting sector

estimating the peace dividend the impact of violence on house prices in northern ireland this article exploits data on the pattern of violence across regions and over time to estimate the impact of the peace process in northern ireland on house prices after establishing a negative correlation between killings and house prices we estimate the parameters of a markov switching model with conflict and peace as latent states we use the model to estimate the size of the peace dividend as captured in house price changes jel d74 r23 r31 conflict in ireland has a long history even after the republic of ireland was created as an independent state in 1920 the status of the mainly protestant north remained contested from the late 1960s a violent conflict flared up which claimed around 3 500 lives only more than two decades later from 1993 onwards emerged a peace process which while initially fragile culminated in a cessation of violence and a return to devolved government by 2007 the conflict was a major source of social and economic dislocation but as peace took hold this has begun to be repaired this paper assesses the impact of peace by using variation in violence within northern ireland to study one important economic aspect of the peace process and the dividend that it brought to residents of northern ireland the impact on house prices houses are assets whose prices reflect the present and future expected attrac tiveness of living in an area even during the height of the conflict in northern ireland violence was not uniform for example belfast the capital city of the province of northern ireland was particularly hard hit looking for economic consequences of the peace process we would therefore expect benefits to be concentrated among areas where violence was most prevalent we exploit within region variability in violence and house prices over time having such variation is rare in studies of the economic consequences of conflict our specific measure of violence is conflict related deaths these have been well documented by sutton 1994 and the conflict archive on the

economic growth pollution and renewable resources abstract this paper first analyzes a model of economic growth with stock pollution allowing smooth substitution between emissions and reproducible capital when emissions are optimally controlled the steady state consumption is lower than without pollution control but the optimal steady state equilibrium may not exist if the marginal productivity of capital is bounded the steady state is shown to be a local saddle point independent of the rate of discount if pollution is not controlled a competitive economy moves along a stable growth path toward a too heavily polluted steady state next a growth model in which pollution affects the growth of renewable resources is presented the conditions for the existence and saddle point property of the steady state are given and the consequences of nonoptimal externality taxes are discussed when renewable resources are included higher than optimal pollution may decrease steady state consumption contrary to the case where renewable resources are ignored

strategic transfers and private provision of public goods abstract this paper considers strategic monetary transfers between two agents when these contribute to a mutual public good if the agents differ in their contribution productivity then the less productive agent has an incentive to make large unconditional transfers to the more productive agent although agents move simultaneously in each stage of the game the less productive agent becomes a stackelberg leader furthermore the generic subgame perfect equilibrium is characterized by full specialization

environmental performance in socially fragmented countries social fragmentation is often associated with reduced co operative behaviour which undermines public goods provision such as environmental protection the few studies linking social fragmentation and environmental performance have been confined to using ethnic fractionalisation as the only measure of social heterogeneity in this paper we contribute to the literature in a twofold manner first we bring into the analysis alternative measures of social fragmentation i e religious fractionalisation ethnic religious polarisation that have received considerable attention in development economics in recent years second this is the first study to our knowledge that makes use of a large panel dataset of several environmental indicators to explore links between ethnic religious diversity and the environment we find that all indices of social fragmentation are negatively linked to measures of environmental quality although for some of them the size of the effect is larger in the case of polarisation

environmental protection and the private provision of international public goods final version received 11 september 2008 international environmental protection like the combat of global warming exhibits properties of publicgoods in the international arena no coercive authority exists that can enforce measures to overcome free rider incentives therefore decentralized negotiations between individual regions serve as an approach topursue ef cient international environmental protection we propose a scheme which is based on the ideasof coasean negotiations and pigouvian taxes the negotiating entities offer side payments to counterpartsin order to in uence their taxation of polluting consumption side payments in turn are self nanced bymeans of externality correcting taxes as we show a pareto ef cient outcome can be attained

externalities in an endogenous growth model with social and natural capital abstract models of economic growth are typically based on the use of one or more stocks of productive assets to create goods for utility generating consumption the roles played by man made capital natural capital and human capital have been explored in the literature and more recently the notion of social capital has been brought to the fore this paper provides an attempt to construct an inclusive model of growth analyzing externalities and distortions due to market failures linked with social capital and environmental problems

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

nature in economics nature has been ill served by 20th century economics when asked economists acknowledge nature s existence but most would appear to deny that she is worth much if ecologists worry about the contemporary nexus between population size and growth the standard of living and the natural environment we economists point to the accumulation of capital and technological progress and say malthus got it wrong in this paper i show by an appeal to theory that economics has been so badly misused that it has deflected attention from deep problems at the nexus that are faced both regionally and globally

an economic approach to social capital a standard optimal investment model can be used to analyse an individual s decision to accumulate social capital we analyse six facts that support the predictions of this individual based approach 1 social capital first rises and then falls with age 2 social capital declines with expected mobility 3 social capital rises in occupations with greater returns to social skills 4 social capital is higher among homeowners 5 social connections fall sharply with physical distance 6 people who invest in human capital also invest in social capital we fail to find robust evidence that social capital investments fall with the value of time or that geographic religious groups generate social capital complementarities

development aid and climate finance this paper discusses the implications of climate change for official transfers from rich countries the north to poor countries the south when the motivation for transfers is ethical rather than strategic traditional development transfers to increase income and reduce poverty are complemented by new financial flows to reduce greenhouse gas emissions mitigation transfers and become climate resilient adaptation transfers we find that in the absence of barriers to adaptation mitigation or development climate change will make isolated transfers less efficient a large part of their intended effect to increase income reduce emissions or boost climate resilience dissipates as the south reallocates its own resources to achieve the mitigation adaptation and consumption balance it prefers only in the case of least developed countries which are unable to adapt fully due to income constraints will adaptation support lead to more climate resilience in all other cases if the north wishes to change the balance between mitigation adaptation and consumption it should structure its transfers as matching grants which are tied to the south s own level of funding alternatively the north could provide an integrated climate compatible development package that recognizes the combined climate and development requirements of the south if the aim is to increase both mitigation and adaptation in the south development assistance that increases the income level can be an effective measure but only if there is an international agreement and the recipient country is not income constrained if the recipient country is very poor development aid may reduce adaptation effort

the spillover effects of good governance in a tax competition framework with a negative environmental externality we investigate the impact of a political regime shift affecting consumers business interests and lobby contributions when countries engage in tax competition in capital and a polluting resource when consumers have more influence than resource owners the resource tax rate and public spending rise while environmental damages lobbying contribution and the capital tax rate fall this response can spillover to other countries leading to lower welfare capital tax harmonization improves welfare of consumers and resource owners resource tax harmonization and governance harmonization both reduce the influence of lobbying and improve consumer welfare but resource owners are worse off

why conditional aid does not work and what can be done about it abstract this paper studies a simple reform that introduces ex post incentives for the donor to reward good policies contrary to existing practices instead of committing aid to each recipient ex ante and making aid conditional on reform the donor centralizes the disbursement decision by committing aid to a group of countries the actual amount disbursed to each individual country would depend on its relative performance this explicit linkage of the allocation and disbursement decisions has two important advantages as compared to present practices first it raises the opportunity cost of disbursing aid ex post thereby giving the donor stronger incentives to reward good policies second competition among recipients allows the donor to make inferences about common shocks which otherwise conceal the recipient s choice of action this enables the donor to give aid more efficiently

effects of conflict on agriculture evidence from the boko haram insurgency abstract we investigate the effects of conflict on agriculture using the boko haram insurgency as a case study we identify the output input infrastructure and human capital effects as direct effects and the loss of talent and other environmental factors as indirect effects identified market effects include effects on product and input prices and increased risk premiums by combining a nationally representative panel dataset on nigerian agriculture with armed conflict data we find that the increased intensity of boko haram attacks significantly reduces total output and productivity but not land use and reduces the outputs of specific staple crops such as sorghum cassava soya and yam conflict is also found to reduce the hours of hired labor for men and women but does not affect the use of family labor agricultural wages are however significantly affected because it reveals if why and how conflict affects agriculture this study has important implications for post crisis recovery and agricultural development

environmental performance corruption and economic growth global evidence using a new data set abstractthis study investigates the relationship between environmental performance corruption and economic growth using panel data of 87 countries covering the period from 2002 to 2012 the environmental performance index is used for the first time to evaluate the environmental quality on economic growth by employing both static and dynamic panel models we find that environmental performance is positively related to economic growth and is more significant in non organization for economic cooperation development oecd countries moreover when corruption is incorporated the empirical estimation results indicate that although lower corruption helps economic growth in non oecd countries the negative coefficients of the three interactive terms show that the positive effect of environment performance on economic growth will drop while greater environmental performance combined with natural resource abundance inevitably leads to inefficient bureaucracies and hence disadvantageous economic growth as

economic growth and atmospheric pollution in spain discussing the environmental kuznets curve hypothesis abstract the environmental kuznets curve ekc hypothesis posits an inverted u relationship between environmental pressure and per capita income recent research has examined this hypothesis for different pollutants in different countries despite certain empirical evidence showing that some specific environmental pressures have diminished in developed countries the hypothesis could not be generalized to the global relationship between economy and environment at all in this article we contribute to this debate analyzing the trends of annual emission flux of six atmospheric pollutants in spain the study presents evidence that there is not any correlation between higher income level and smaller emissions except for so2 whose evolution might be compatible with the ekc hypothesis the authors argue that the relationship between income level and diverse types of emissions depends on many factors thus it cannot be thought that economic growth by itself will solve environmental problems

pollution shadow economy and corruption theory and evidence abstract we study how the shadow economy affects pollution and how this effect depends on corruption levels in public administration production in the shadow economy allows firms to avoid environmental regulation policies a large informal sector may be accompanied by higher pollution levels our theoretical model predicts that controlling the levels of corruption can limit the effect of the shadow economy on pollution we use panel data covering the period from 1999 to 2005 in more than 100 countries to test this theoretical prediction our estimates confirm that the relationship between the shadow economy and the levels of pollution are dependent on the levels of corruption our results hold when we control for the effects of other determinants of pollution time varying common shocks country fixed effects and various additional covariates

weakest link public goods giving in kind or transferring money abstract this paper extends the analysis of weakest link public goods whose level equals the smallest of the agents provision levels by permitting an agent either to increase one s own provision or else augment both one s own provision and that of the other agent s nash equilibria may be either symmetric with agents matching one another s provision or else asymmetric with an in kind transfer by one agent to another an equilibrium with cash transfers but no in kind transfers may be pareto superior to one with only in kind transfers if agents differ in their efficiency then in kind transfers by the low cost agent may dominate a cash transfer the possibility of pareto improving transfers is enhanced as the number of agents increases

carbon dioxide emissions and trade evidence from disaggregate trade data abstract the relationship between trade and environmental quality is a major controversial issue the paper intends to provide robust evidence and new insights into the discussion specifically it examines the effect of trade on carbon dioxide emissions co2 systematically in a north north north south south north and south south context it employs a panel data instrumental variable quantile approach to control for endogeneity and account for potential quantile parameter heterogeneity some important results emerge first trade with the north increases co2 emissions whereas trade with the south mitigates co2 emissions with a relatively larger effect for less polluted host countries second for advanced countries their trade with the south or the north leads to a reduction in co2 emissions the effect that seems relatively stronger for less polluted advanced countries third for developing countries their trade with the north worsens co2 emissions whereas their trade with the south mitigates co2 emissions with a larger effect for less polluted developing countries last the environmental kuznets hypothesis is also detected across quantiles for the full sample and both developing and advanced countries subsamples the findings suggest that trade benefits the advanced countries but could hurt the developing countries when trade with high income trading partners occurs in terms of co2 emissions

social values and economic dynamics abstract social values belief systems can be viewed as a stock of non productive ideas that are collectively shared in a non rivalrous way and evolve through experience participation at the aggregate social level while they are separate from the stock of scientific ideas that are essential to production history shows that social values and scientific ideas are interdependent this paper explores the relationship between social values and long run growth in an endogenous growth framework and highlights the underlying mechanism we view both scientific ideas and social values as some sort of social capital that accumulates through a society s aggregate experience and also as goods that generate utility flows with rational addiction or habit formation at the social level when combined with individuals time investment learning by doing we demonstrate the mechanism through which social values affect long run economic growth in particular i we derive the conditions under which either the economy grows with social values as in the usual modern economies or it is dominated by social values with economic distress and ii finally we show the applicability of the model to some episodes

carbon emissions energy consumption and economic growth an aggregate and disaggregate analysis of the indian economy abstract this study investigates the long and short run relationships among carbon emissions energy consumption and economic growth in india at the aggregated and disaggregated levels during 1971 2014 the autoregressive distributed lag model is employed for the cointegration analyses and the vector error correction model is applied to determine the direction of causality between variables results show that a long run cointegration relationship exists and that the environmental kuznets curve is validated at the aggregated and disaggregated levels furthermore energy total energy gas oil electricity and coal consumption has a positive relationship with carbon emissions and a feedback effect exists between economic growth and carbon emissions thus energy efficient technologies should be used in domestic production to mitigate carbon emissions at the aggregated and disaggregated levels the present study provides policy makers with new directions in drafting comprehensive policies with lasting impacts on the economy energy consumption and environment towards sustainable development

optimal targeting under budget constraints in a humanitarian context the combination of conflict food insecurity and displacement generates competing claims for financial resources that stretch the donors ability to provide funding and the humanitarian organizations capacity to provide social assistance the paper uses receiver operating characteristic curves and related indexes to determine the optimal targeting strategy of a food voucher program for refugees the estimations focus on the 2014 food vouchers administered by the world food programme to syrian refugees in jordan the analysis uses data collected by the united nations high commissioner for refugees based on a poverty model receiver operating characteristic curves are used to optimize coverage and leakage rates under budget constraints the paper shows how policy makers can use these instruments to fine tune targeting using coverage rates budgets or poverty lines as guiding principles to increase the overall efficiency of a program as humanitarian organizations operate under increasing budget constraints and increasing demands for efficiency the proposed approach addresses both concerns

corruption and the environmental kuznets curve empirical evidence for sulfur abstract we investigate how corruption influences the income level at the turning point of the relationship between sulfur emissions and income using a wide cross national panel of countries at different levels of development and with different degrees of corruption our results support the environmental kuznets curve hypothesis for sulfur we find evidence that the higher the country s degree of corruption the higher the per capita income at the turning point suggesting different income pollution paths across countries due to corruption we build upon a new specification for the ekc developed by bradford et al 2005 that avoids using nonlinear transformations of potentially nonstationary regressors in panel estimation also we account for the indirect impact of corruption on emissions through its impact on per capita income our main findings remain unchanged when we investigate additional heterogeneity allowing for different income slopes across richer and poorer countries

the effect of government expenditure on the environment an empirical investigation abstract this paper examines the impact of government spending on the environment using a panel of 77 countries for the time period 1980 2000 we estimate both the direct and indirect effects of government spending on pollution the indirect effect in particular operates through the impact of government spending on income and the subsequent effect of the income level on pollution to take into account the dynamic nature and the potential endogeneity in the relationships examined appropriate econometric methods are used for so2 government spending is estimated to have a negative direct impact on per capita emissions while the direct effect is insignificant on co2 pollution the indirect effect on so2 is negative for low income levels and becomes positive as income increases while it remains negative for co2 for the most part of the sample range the resultant total effects follow the patterns of the indirect effects which dominate their respective direct ones for each pollutant policy implications from the results vary depending on the income level of the considered countries

towards an integrated framework for development and environment policy the dynamics of environmental kuznets curves abstract environmental kuznets curves ekcs have recently received considerable attention in development and environment policy but little is known on how the interaction between ecological and economic factors may result in an ekc or other qualitatively different outcomes we introduce a restricted class of vector valued differential equations for representing the evolution of socioeconomic and environmental variables which influence or are influenced by the process of economic development our model includes not only the complete path of each variable over time but also the highly critical interactions among multiple variables we demonstrate analytically and numerically that among a multiplicity of possible outcomes an inverted u pattern can only be obtained under specific circumstances and requires attention to the multiple factors which form the economic environmental system rather than a single dominant one

sustainability and growth when manufactured capital and natural capital are not substitutable abstract a two sector neoclassical growth model of manufactured capital and natural capital is used in examining the importance of factor substitution to the issues of sustainability and economic growth analytical conclusions are established on the sustainability of the stocks of natural capital and manufactured capital as well as on the importance of factor substitution to the issues of technical progress and recycling policy and welfare implications of the analysis are also discussed

can environmental quality spread through institutions spatial relationships are known phenomena in ecological studies that refer to the relationships between certain variables observed in different localities different mechanisms have been suggested to explain this phenomenon such as the pollution displacement hypothesis foreign direct investment international trade and strategic response of countries to transboundary pollution flows this paper develops a new mechanism in the sense that environmental quality of countries spreads spatially to their neighbors through the spillover of the institutional quality of countries to test this hypothesis a panel data model is constructed that estimates the impact of the institutional quality of countries and their neighbors on their co2 emission intensity of energy use using data for 129 countries over the period 1980 2007 the findings prove the existence of this mechanism at the global and regional levels

the environmental consequences of domestic and foreign investment evidence from china abstract fixed asset investment fai and foreign indirect investment fdi have important influences on economic development and environmental quality because environmental performance is related with economic development fai and fdi may affect environment indirectly through their impacts on economic growth in this study the direct and indirect effects of both fai and fdi on china s environmental quality are distinguished and separately estimated for the first time with a carefully designed framework of a two equation model because most economic activities and environmental pollutions occur in the urban areas a panel data of 112 chinese cities for the period 2002 2015 is utilized several spatial factors are also introduced to control for the potential spatial correlations in economic development and pollutant emissions the estimation results indicate that there exist apparent differences in the environmental effects of fai and fdi the direct effects of fai on so 2 emissions are significant positive and dominate the negative indirect effects by contrast the direct indirect and total effects of fdi on pollutant emissions are all negative therefore overall speaking well designed and targeted policies should be formulated to reduce the negative environmental impacts of fai and to increase the positive influences of fdi on environment

the heterogeneous effect of democracy political globalization and urbanization on pm2 5 concentrations in g20 countries evidence from panel quantile regression abstract pm2 5 emissions have serious adverse impacts on health and impede transport activities especially air and highway consequently policymakers and economists have focused on this issue the primary objective of this study is to investigate the effect of democracy political globalization and urbanization on pm2 5 concentrations within g20 countries ecological modernization theory is used to gain the best understanding of the impact of these driving forces on pm2 5 concentrations and obtains an analytical framework the method utilized is the panel quantile regression which takes into account the unobserved individual and distributional heterogeneity the results demonstrate that first the direct effect of democracy on pm2 5 concentrations is significantly positive in countries with higher emissions and has no impact on lower emission countries second the direct effect of political globalization on pm2 5 concentrations is significantly positive and especially greater in extremely low and high emission countries third persuasive evidence proves the existence of an environmental kuznets curve between urbanization and pm2 5 concentrations additionally this paper further assesses the direct and indirect influence mechanisms of democracy and political globalization on pm2 5 concentrations across pollution levels both have a positive negative indirect effect on pm2 5 concentrations in countries with higher lower emissions through its effect on gdp per capita the total effect appears positive suggesting that the increase in democracy and political globalization degrade environmental quality these results provide policymakers with critical policy recommendations that contribute to the reduction of pm2 5 concentrations and ensure sustainable economic development in the g20 countries

impact of corruption in public sector on environmental quality implications for sustainability in brics and next 11 countries abstract this study investigates the impact of corruption in public sector on carbon emissions in presence of energy use segregation following the environmental kuznets curve ekc framework the study has been carried out for brazil russia india china south africa brics and next 11 countries over the period of 1990 2017 along with the finding of inverted n shaped ekc for both the cases we find that incidents of corruption enhance environmental degradation by reducing the positive impact of renewable energy consumption on environmental quality and increasing the negative impact of fossil fuel consumption this study has also divulged that the corruptive practices are more prone in case of the countries where the development is mature and institutionalization is more stringent based on these findings we suggest that environmental policies should take account of the corruption and thereby making the policies more robust and effective

corruption income and the environment an empirical analysis abstract in response to the recent growth of a largely theoretical body of literature analysing the linkages between corruption and pollution this paper subjects the corruption pollution relationship to a detailed empirical examination a distinction is drawn between the direct impact of corruption on pollution and the indirect impact which operates through corruption s impact on per capita income and the resultant impact of income on pollution using data for 94 countries covering the period 1987 2000 both direct and indirect impacts of corruption on air pollution emissions are estimated for both sulfur dioxide and carbon dioxide corruption is estimated to have a positive direct impact on per capita emissions indirect effects are found to be negative and larger in absolute value than direct effects for the majority of the sample income range as a result the total effect of corruption on emissions is negative for all but the highest income countries in the sample

forced displacement and technology adoption an empirical analysis based on agricultural households in bosnia and herzegovina we use the bosnian living standards measurement study lsms survey to show that conflict induced displacement of agricultural households dramatically affects the adoption of new technologies in agriculture we exploit the heterogeneity in the level of violence in the pre war location to account for selection bias this natural experiment seems to be a source of exogenous variation in our case because violence aims at ethnic cleansing without economic consideration we find that the displaced are less likely than stayers to adopt fertiliser and pesticide

displacement due to violence in colombia a household level analysis abstract civil wars and ethnic conflicts have resulted in an estimated number of approximately 35 million refugees and internally displaced persons worldwide understanding the determinants of forced migration is an important prerequisite for the definition of appropriate policies of prevention assistance and relocation we develop a conceptual framework for the empirical analysis of displacement decisions at the household level while similarities to conventional migration theories exist there are also important differences implied by the presence of violent conflict for example risk aversion and lack of information may hamper conventional migration but enhance displacement factors such as landholdings and social capital at the place of origin may not only reduce displacement in the conventional sense of raising opportunity costs but may also spur displacement indirectly by increasing the household s likelihood of becoming the victim of direct threats for the case of colombia we conduct an econom

georgescu roegen versus solow stiglitz daly is right to be concerned about our society s use of resources environmental degradation and the wasteful use of natural resources or any resources for that matter are of concern daly s tirade concerning our work seems motivated by two concerns a lack of consistency with basic laws of physics and the alleged implication that growth can continue unabated without eventually facing constraints imposed by the limited supply of natural resources part of the problem arises from a lack of understanding of the role of the kind of analytic models that we and others have formulated they are intended to help us answer questions like for the intermediate run for the next 50 60 years is it possible that growth can be sustained what does this possibility entail we write down models as if they extend out to infinity but no one takes these limits seriously for one thing an exponential increase in the population presents almost unimaginable problems of congestion on our limited planet in this intermediate run capital can substitute for natural resources and this is true even though capital itself uses resources more precise machines made out of resources that are relatively abundant can reduce wastage of resources that are relatively scarce technical change some of which is the result of investments in rd and increased efficiency in production may imply less wastage of bauxite and less coal or oil to produce the energy used to make a pound of aluminum or consider the resources that were required to run a regression only a half century ago pounds and pounds of heavy calculating machines replaced by mere ounces of a modern calculator changes in technology also allow us to recycle resources more efficiently so that the amount that is not recaptured for future production may be reduced perhaps the most important question is where does all of this lead us resources are scarce and markets when they function well reflect that scarcity economizing on the use of resources there are important instances especially where the environment and natural resources are concerned where markets do not work well there are for instance the classic problems posed by pollution externalities when markets do not

limits to the growth paradigm abstract this paper is a synthesis of several current controversies it makes four broad claims 1 that economic growth as conventionally measured is not and never has been the most important contributor to increasing human welfare 2 that technological progress has always been the primary source of both growth and welfare considered separately 3 that trade was at best a minor contributor to growth in the past and is probably now contributing negatively to both national wealth and equity hence to welfare in western europe and north america and 4 that both growth of gdp and trade are increasingly incompatible with environmental protection in fact while increasing prosperity breeds environmental sensitivity many of the processes by which it is achieved are environmentally destructive the paper assembles and presents some of the key arguments and evidence

strategic information acquisition and the mitigation of global warming abstract we consider the strategic role of uncertainty and information acquisition for the mitigation of global warming before the countries decide on their contribution to a mitigation of global warming they may invest in information about the country specific benefit of reductions of the emissions of greenhouse gases we show that information acquisition has a substantial strategic value countries may prefer not to learn their benefit of climate protection even if information acquisition does not involve a direct cost this strategic information choice may further decrease the efficiency of the public good provision

natural capital and sustainability abstract this paper develops and rigorously analyses a model describing the optimal use of natural capital in a utilitarian framework natural capital is treated as an aggregate including exhaustibles renewables and environmentals performing several functions it is found that it converges to a steady state in which it is kept constant by simultaneous investments and use

rich enough to go renewable but too early to leave fossil energy abstract typically environmental kuznets curve ekc studies on energy concentrate on the emissions produced from energy production or consumption and neglect the aspect of exhaustion of a natural resource which is an irreversible result against any definition of sustainability and intergenerational equity this paper investigates whether there is an environmental kuznets curve for renewable energy whether there should be one and if there is what it should stand for for this reason the paper employs balanced panel data for 33 european member and candidate state countries that produce crude oil natural gas coal and renewable energy for the years 1990 2010 to investigate the relationship between their scale of economic activity fossil energy production and the production of renewable energy results from random effects models together with arellano bond estimator models identify the u shape for the environmental kuznets curve only for renewable energy and coal production a theoretical justification on the mechanisms possibly driving the environmental kuznets curve for renewable energy are also discussed

an empirical study of the impact of corruption on environmental performance evidence from panel data this paper extends the empirical debate on the effects of corruption on environmental degradation by considering a recently available measure of environmental quality the environmental performance index this indicator is more comprehensive than the measures of air pollutant emissions commonly used in the literature and in particular can also capture the impact of pollution on human health this allows for a better understanding of the actual effects of a wide range of human activities on the ecosystem from a panel data analysis two regularities emerge first corruption deteriorates the overall environmental quality this effect is robust and persistent second our findings highlight the improvement of environmental quality as income rises even at an initial level of development this is not in contradiction with the ekc hypothesis because an increase in income levels provides positive externalities on the whole environmental quality by compensating the mere negative effects induced by industrialization on the emission levels as a consequence in emerging economies policies fighting corruption and enhancing development are very likely to improve the environmental performances

corruption pollution and the kuznets environment curve abstract this paper examines the implications of corruption and rent seeking behavior by the government for the relationship between pollution and growth cases of both cooperative and non cooperative interaction between the government and the private firm are studied it is shown that corruption is not likely to preclude the existence of an inverted u shaped kuznets environmental curve under both these cases however for any level of per capita income the pollution levels corresponding to corrupt behavior are always above the socially optimal level further the turning point of the kuznets curve takes place at income and pollution levels above those corresponding to the social optimum

monotone comparative statics under uncertainty this paper analyzes monotone comparative statics predictions in several classes of stochastic optimization problems the main results characterize necessary and sufficient conditions for comparative statics predictions to hold based on properties of primitive functions that is utility functions and probability distributions the results apply when the primitives satisfy one of the following two properties i a single crossing property which arises in applications such as portfolio investment problems and auctions or ii log supermodularity which arises in the analysis of demand functions affiliated random variables stochastic orders and orders over risk aversion

politics and the effectiveness of foreign aid abstract critics of foreign aid programs have long argued that poverty reflects government failure in this paper i test predictions for aid effectiveness based on an analytical framework that relates aid effectiveness to political regimes i find that aid does not significantly increase investment nor benefit the poor as measured by improvements in human development indicators but it does increase the size of government the impact of aid does not vary according to whether recipient governments are liberal democratic or highly repressive but liberal political regimes and democracies ceteris paribus have on average 30 lower infant mortality than the least free regimes this may be due to greater empowerment of the poor under liberal regimes even though the political elite continues to receive the benefits of aid programs an implication is that short term aid targeted to support new liberal regimes may be a more successful means of reducing poverty than current programs

constraints on dematerialisation and allocation of natural capital along a sustainable growth path abstract to study societal and biophysical constraints on sustainability we present an extension of the neoclassical growth model with two new concepts allocation of natural capital and dematerialisation we consider that anthropogenic environmental impact is correlated with the material throughput of the economy materialisation and that due to composition change and innovation this throughput can be reduced the process of dematerialisation we also consider that the allocation of natural capital to production negatively affects the endogenous dynamics of ecosystems reducing the total amount of environmental services ecosystems provide according to our model it is possible to achieve unbounded economic growth by keeping the natural system in steady state balanced growth however is only possible for special parameter values

international public goods and contribution productivity differentials abstract this paper investigates the impacts of productivity differentials in contributing to the public good on national welfare in the context of non cooperative voluntary provision of a pure public good a country with high productivity does not necessarily enjoy high welfare subsidizing the other country in a contribution game may lead to a strong paradoxical result while a lump sum transfer will lead to a weak paradoxical result we also explore the relationship between the price of the public good and the size of an open club in a multi club model

aid and growth what does the cross country evidence really show abstract we examine the effects of aid on growth in cross sectional and panel data after correcting for the possible bias that poorer or stronger growth may draw aid contributions to recipient co

gospel or disaster an empirical study on the environmental influences of domestic investment in china abstract since the beginning of china s reform and opening up in late 1970s the contradiction between environmental quality and economic development has become increasingly acute as the main driving force of development china s fixed asset investment fai has grown rapidly in the meanwhile china s energy consumption surged and the environmental pressures mounted the surge in fai may have great influences on the environmental quality on the one hand the rapid increase in fai facilitated the development of the secondary industry especially energy and pollution intensive industries which brought about significant amount of energy related pollution on the other hand growing investment on environmental investment is expected to slow environmental deterioration moreover the environmental quality and domestic investment may have potential spatial correlations in this paper after fully accounting for the spatial dependence the relationship between domestic investment and environmental quality in china is quantitatively investigated using co2 and so2 as two representative pollutants the estimation results indicate that the spatial dependence indeed exists and total effects of fai on pollutant emissions are positive however there is no evidence that environmental protection investment had expected effects to effectively curb pollutant emissions in china

fractionalization polarization and economic growth identifying the transmission channels in this article we examine empirically both the direct and indirect links between ethnic fragmentation and economic growth we find that both ethnic fractionalization and polarization are negatively associated with growth if considered in isolation an effect that is though primarily attributed to their link to other growth related activities i e investment conflict control of corruption fertility we study the corresponding transmission channels and calculate their relative importance in explaining a development curse based on ethnic diversity for both measures of ethnic fragmentation we find the corruption channel to be the most important one

contracting for aid abstract foreign aid is analyzed as a contract where the north gives a transfer to the south in return for poverty reduction regarded as an international public good the issue of conditionality is first discussed in a moral hazard framework and then under asymmetric information about the degree of altruism of the government of the south additional actors like local ngos and multilateral aid institutions are then added to the model the optimal contracts to avoid free riding or collusion are then presented

natural resources and economic growth the role of investment is it possible that excessive reliance on natural resources affects saving and investment in a way that retards economic growth and thus in the long run the level of output per capita this paper reviews the literature explores the data and compares and contrasts the explanatory power and interplay of natural resources and civil liberties our proxy for institutional variables currently under scrutiny in the literature we propose that natural resource dependence may be viewed as an exogenous factor that impedes economic growth and investment as well as institutions even if we stress that natural resource abundance may be good for growth

the effect of growth and corruption on soil sealing in italy a regional environmental kuznets curve analysis this paper analyses and looks more closely at the empirical debate regarding the income elasticity hypothesis postulated in relation to the environmental kuznets curve and the impact of corruption on the relationship between growth and environmental impact measured in terms of soil sealing as proxied by the number of building permits issued by public authorities it postulates that when current private rent is high compared to perceived social costs and a large enough minority benefits from the rules the ekc does not emerge and public intervention fails to perceive social optimality to validate this hypothesis we run a panel data regression model based on data from all italian regions results confirmed the hypothesis evidencing a u shaped relationship i e a detrimental relationship between income and environmental impact quality it also demonstrated that this is contingent on the level of corruption the latter affects the position and the shape of the inverted ekc speeding up the exploitation process it shows that the higher the income the higher the effect of corruption on the environment therefore it advocates caution against any simplistic inference from ekc