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

the impact of renewable energy consumption to economic growth a panel data application internationally the importance of renewable energy in the energy mix has been increasingly appreciated the advantages of the renewable energy usage for the world s energy security and the environment are indisputable and much discussed in the literature however its effects on the economic welfare of the countries are yet to be examined fully and described quantitatively the purpose of this paper is to estimate the impact of the renewable energy consumption to economic welfare by employing panel data techniques the results show that the influence of renewable energy consumption or its share to the total energy mix to economic growth is positive and statistically significant from a policy point of view promoting renewable energies bears benefits not only for the environment but also for the economic conditions of the countries

investigating environmental kuznets curve from an energy intensity perspective empirical evidence from china abstract this study pioneers investigating the environmental kuznets curve ekc hypothesis and its possible regional differential characteristics in china based on 2003 2017 years of provincial panel data this research employs panel smooth transition auto regression pstr model to analyze the impact of income levels on environmental pollution and identify the ekc threshold of energy intensity then 30 chinese provinces were categorized by energy intensity to examine the inter provincial and interregional differences in the ekc threshold of energy intensity rather than the traditional threshold of income the results indicate that china s pollution emissions and energy intensities show a stepwise decreasing pattern from the western region to the eastern region in addition the impact of income levels on pollution emissions is non linear and the critical value of energy intensity is 0 9168 between the high and low regimes an inverted u shaped environmental kuznets curve is accepted for energy intensity with 0 7670 as its threshold value when the energy intensity is higher lower than the threshold value the income elasticity of pollution emission is positive negative the more developed provinces and municipalities mainly in the eastern region are proved to exceed the threshold than the provinces in the central and western regions within the sample period given these findings this study further divides china s provinces into eco friendly low pollution and high pollution provinces and accordingly the most important policy recommendations were discussed for policy makers and researchers this research can provide a new insight to investigate countries with unbalanced development levels within and a reference for environmental governance policies in sub regions

the biodiversity supergame this paper considers the ability of developed countries to sustain a cooperative agreement to compensate developing countries for the incremental costs of biodiversity conservation it is shown that depending on certain parameter values and the model specification such an agreement could only codify the non cooperative outcome or achieve the full cooperative outcome where global net benefits are maximized however where the agreement can sustain the full cooperative outcome net benefits will be only slightly larger than in the noncooperative outcome

what separates us sources of resistance to globalization with increasing sophistication economists have been estimating gravity equations for five decades robust evidence shows that borders and distance impede trade by much more than tariffs or transports costs can explain we therefore advocate investigation of other sources of resistance despite the greater difficult involved in measuring and modelling them from our selective review of recent findings a unifying explanation emerges a legacy of historical isolation and conflict forged a world economy in which neither tastes nor information are homogeneously distributed cultural difference and inadequate information manifest themselves most strongly at national borders and over distance

the environmental kuznets curve and flow versus stock pollution the neglect of future damages in this paper we offer a possible explanation for the empirical finding that the pollution income relationship pir for flow pollutants is an environmental kuznets curve ekc i e inverted u shaped but that the pir for stock pollutants is monotonically rising we analyse an overlapping generations model with two pollutants the flow pollutant causes immediate damages but the stock pollutant harms the environment only in the future hence a succession of myopic governments lets stock pollution grow with income in contrast the flow pollutant follows an ekc whose downturn might be caused by the neglect of future damages and by ever rising stock pollution without the stock pollutant the pir for the flow pollutant can increase monotonically we also show that the turning point of the ekc for the flow pollutant lies at lower levels of income and of flow pollution if stock pollution is high and harmful this casts doubts on most empirical ekc studies because they assume that the turning point occurs at the same income level in all countries however it is consistent with recent empirical findings that the income level at the turning point of the ekc varies across countries

co2 emissions energy consumption and economic growth in bric countries abstract this paper examines dynamic causal relationships between pollutant emissions energy consumption and output for a panel of bric countries over the period 1971 2005 except for russia 1990 2005 in long run equilibrium energy consumption has a positive and statistically significant impact on emissions while real output exhibits the inverted u shape pattern associated with the environmental kuznets curve ekc hypothesis with the threshold income of 5 393 in logarithms in the short term changes in emissions are driven mostly by the error correction term and short term energy consumption shocks as opposed to short term output shocks for each country short term deviations from the long term equilibrium take from 0 770 years russia to 5 848 years brazil to correct the panel causality results indicate there are energy consumption emissions bidirectional strong causality and energy consumption output bidirectional long run causality along with unidirectional both strong and short run causalities from emissions and energy consumption respectively to output overall in order to reduce emissions and not to adversely affect economic growth increasing both energy supply investment and energy efficiency and stepping up energy conservation policies to reduce unnecessary wastage of energy can be initiated for energy dependent bric countries

a tale of two collectives sulphur versus nitrogen oxides emission reduction in europe a theoretical model of emission reductions is specified that accounts for voluntary and non voluntary behaviour regarding the adherence to the helsinki and sofia protocols which mandated emission reductions for sulphur s and nitrogen oxides nox respectively from this model we derive an econometric specification for the demand for emission reductions that adjusts for the spatial dispersion of the pollutant when tested for 25 european nations the model performs well for sulphur cutbacks less satisfying results are obtained for nox because the model s assumption of a unitary actor at the national level is less descriptive collective action considerations indicate that sulphur emissions are easier to control than those of nox

overall review of the overcapacity situation of china s thermal power industry status quo policy analysis and suggestions abstract china s thermal power industry has gone through the phases of rapid development in the last decade but the excessive enthusiasm of thermal power investment is making this industry overcapacity the unbalanced demand supply relationship in electric power market greatly affects the economic benefit of most thermal power plants in this paper we give an overall review of the overcapacity situation of china s thermal power industry which is supported by latest data then policy orientation and its effect is discussed it can be found out that policies on the respect of construction scale control renewable power integration feed in tariff reduction and environmental protection were considered as the main solution to relieve the over capacity situation finally we propose three suggestions for the future development of china s thermal industry

the energy and co2 emissions impact of renewable energy development in china the authors are grateful for the support provided by the national key technology r d program from ministry of science and technology of grant no 2012bac20b07 we acknowledge the support of the national key technology r d program and the institute for energy environment and economy at tsinghua university which is supporting tianyu qi s doctoral research as a visiting scholar at the massachusetts institute of technology we acknowledge the support of eni icf and shell initial founding sponsors of the china energy and climate project this consortium of sponsors has provided support for researchers in the mit joint program to engage in a five year program of research focused on china none of the sponsoring organizations played a role in the study design collection analysis or interpretation of the data used for this study nor did they influence our decisions to submit the article for publication and all errors are our own

do individual preferences explain the environmental kuznets curve abstract some economists maintain the optimistic view that individual preferences of rich people eventually lead to a virtuous circle relationship between rising income and environmental degradation in this article i review some of the models that establish a relationship between individual preferences and environmental quality these models provide a basis for discussion of the key role played by two factors individual preferences and technology they do not however capture the distributive conflicts that occur between different social groups in the process of defining environmental policy neither do they provide a good basis for distinguishing between environmental costs caused by the decisions of particular consumers and those which affect the same consumers this point is related to the various manners in which environmental costs are displaced displacement often occurs within a country for current costs and is even clearer and more relevant when costs are transferred across a great distance or to a remote future in such cases there are few incentives to reduce consumption or alter its composition displacement moreover can become a strategy pursued more or less consciously for maintaining high and rising levels of consumption without dealing with the associated environmental costs

does institutional quality matter for trade institutional conditions in a sectoral trade framework summary this article examines the extent to which national institutional quality affects bilateral sectoral trade flows as well as whether the conditioning role of institutions for trade has been waxing or waning with time based on a new trade theory framework we derive a sectoral gravity equation including novel variables corresponding to the exporter s labor competitiveness levels along with importer s price indices and sectoral incomes and analyze industry specific bilateral trade flows of 186 countries for the period 1996 2012 we address potential endogeneity and econometric drawbacks by means of the poisson pseudo maximum likelihood estimation methods the results indicate that both the institutional conditions at destination and the institutional distance between exporting and importing countries are relevant factors for bilateral trade moreover the effect associated with institutional conditions at destination moderately increases over time this is a robust outcome across economic sectors with higher values for agriculture and raw materials than for manufacturing and services

rising trade costs agglomeration and trade with endogenous transaction costs while transport costs have fallen the empirical evidence also points at rising total trade costs in a model of industry location with endogenous transaction costs that seeks to replicate features from the machinery industry we show how and under which conditions a decline in transport costs can lead to an increase in the total cost of trade the subtle relationship between endogenous transport costs and the sensitivity of trade

does natural gas consumption mitigate co2 emissions testing the environmental kuznets curve hypothesis for 14 asia pacific countries abstract this study aims to investigate the nexus of per capita carbon dioxide co2 emissions per capita gross domestic product gdp and per capita natural gas consumption by examining the validity of the environmental kuznets curve ekc hypothesis and analyzing the effectiveness of natural gas consumption for a panel of 14 asia pacific countries for 1970 2016 to do so a granger causality framework covering panel unit root cointegration estimation and causality tests allowing for cross sectional dependence is employed the main findings are i the augmented mean group amg estimates provide strong evidence in favor of the ekc hypothesis as the ekc holds in 13 of the 14 countries the ekc exists independent of the individual country s per capita gdp ii the turning points tps lie between 1937 23 bangladesh and 58 235 90 australia while the turning years tys are estimated to stay between 2019 australia and 2048 bangladesh per capita gdp positively and negatively affects the tps and tys respectively iii natural gas consumption has a significantly negative effect on co2 emissions the significantly negative effect of natural gas consumption on co2 emissions is also independent of per capita gdp but conversely may be affected by the proportion of natural gas in the primary energy mix and iv bidirectional causality runs between natural gas consumption and co2 emissions in both the short run and long run important policy implications are highlighted for asia pacific countries policymakers with respect to halting global warming and promoting growth in the natural gas industry

an optimal path to extinction poverty and resource degradation in the open agrarian economy this paper constructs a model of the open agrarian economy in order to explore the tendency of many such economies to evolve along paths characterised by severe environmental degradation it pays special attention to the importance of commodity prices and the transfer system in determining agricultural activity levels in ecologically delicate systems

economic growth and transboundary pollution in europe an empirical analysis the existing empirical evidence suggests that environmental kuznets curvesonly exist for pollutants with semi local and medium term impacts ansuategi and perrings 2000 have considered the behavioral basis for thecorrelation observed between different spatial incidence of environmentaldegradation and the relation between economic growth and environmentalquality they show that self interested planners following a nash typestrategy tend to address environmental effects sequentially addressingthose with the most immediate costs first and those whose costs aredisplaced in space later this paper tests such behavioral basis in thecontext of sulphur dioxide emissions in europe

renewable energy an efficient mechanism to improve gdp abstract this article analyzes the effects of renewable energy on gdp for 116 economies in 2003 through structural equation modeling sem approach in order to decipher the mechanism of how the use of renewables improves macroeconomic efficiency we decompose gdp by the expenditure approach although previous theory predicts positive effects of renewables on capital formation and trade balance the sem results show that renewables have a significant positive influence on capital formation only the result that renewables do not have a significant impact on trade balance implies that renewables do not have an import substitution effect thus we confirm the positive relationship between renewable energy and gdp through the path of increasing capital formation but not for the path of increasing trade balance

is income inequality a driver for renewable energy consumption abstract although many initiatives have been made to research the effect of income inequality on environmental issues the question of whether income inequality affects renewable energy consumption hasn t been answered this gap in the literature raises an important question that needs to be answered by researchers can the income inequality affect renewable energy consumption as far as is known the study is the first attempt to discover this relationship therefore the impact of income inequality on renewable energy consumption is examined theoretically and empirically in 43 developed and developing countries for 2000 2015 in order to avoid the omitted variable problem economic environmental and institutional variables such as gdp per capita corruption co2 emissions and trade openness are included in the model the results demonstrate that the decline in income inequality will enhance renewable energy consumption in other words policymakers have the opportunity to reduce income inequality and environmental degradation at the same time similarly corruption control and raise co2 emissions will increase also renewable energy consumption otherwise economic determinants such as economic growth and trade openness have no meaningful effect on renewable energy consumption

neoclassical growth the j curve for abatement and the inverted u curve for pollution abstract this paper reexamines the neoclassical environmental growth model of forster to gain insights into the dynamic relationships among pollution abatement effort and economic development whereas the model has heretofore been used to examine steady state levels of capital consumption and environmental quality it also provides a theoretical basis for recent empirical research on j curves for abatement effort and inverted u curves for pollution

the effects of environmental regulation and technical progress on co2 kuznets curve an evidence from china based on environmental kuznets curve theory a panel data model which takes environmental regulation and technical progress as its moderating factors was developed to analyse the institutional and technical factors that affect the path of low carbon economic development the results indicated that there was a co2 emission kuznets curve seen in china environmental regulation had a significant moderating effect on the curve and the inflection of co2 emissions could come substantially earlier under stricter environmental regulation meanwhile the impact of technical progress on the low carbon economic development path had a longer hysteresis effect but restrained co2 emission during its increasing stage and accelerated its downward trend during the decreasing stage which was conducive to emission reduction strict environmental regulation could force the high carbon emitting industries to transfer from the eastern regions to the central or the western regions of china which would make the co2 kuznets curve higher in its increasing stage and lower in its decreasing stage than that under looser regulation furthermore energy efficiency energy structure and industrial structure exerted a significant direct impact on co2 emissions we should consider the above factors as essential in the quest for low carbon economic development

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

the effect of distance on willingness to pay values a case study of wetlands and salmon in california most contingent valuation studies in the literature utilized a pre determined geographic market area for their sample frame in other words they did not include variables that would measure the extent of the geographic areas over which to aggregate willingness to pay these studies implicitly assumed that the effects of geographic distance were moot an assumption that could have led to an understatement of the aggregate benefit values computed in these studies the overall goal of this study was to determine if distance affects willingness to pay for public goods with large non use values the data used came from a contingent valuation study regarding the san joaquin valley ca respondents were asked about their willingness to pay wtp for three proposed programs designed to reduce various environmental problems in the valley a logit model was used to examine the effects of geographic distance on respondents willingness to pay for each of the three programs results indicate that distance affected wtp for two of the three programs wetlands habitat and wildlife and the wildlife contamination control programs we calculate the underestimate in benefits if the geographic extent of the public good market is arbitrarily limited to one political jurisdiction

economic growth and emissions reconsidering the empirical basis of environmental kuznets curves abstract recent empirical research indicates that certain types of emissions follow an inverted u or environmental kuznets curve ekc as income grows this regularity has been interpreted as a possible de linking of economic growth and patterns of certain pollutants for developed economies in this paper the empirical basis of this result is investigated by considering some statistical particularities of the various ekc studies performed it is argued that the inverted u relationship between income and emissions estimated from panel data need not hold for specific individual countries over time based on insights from intensity of use analysis in resource economics an alternative growth model is specified and estimated for three types of emissions co2 nox and so2 in four countries netherlands uk usa and western germany it is found that the time patterns of these emissions correlate positively with economic growth and that emission reductions may have been achieved as a result of structural and technological changes in the economy sustainable growth is defined as the rate of economic growth that does not lead to growth in emissions its rate is calculated for each type of emission and country based on estimated parameter values the resulting indicators reflect a balance between the positive influence of growth and negative influence of structural change and technological progress on emission levels

empirical analysis of national income and so2 emissions in selected european countries the linkage between per capita gdp and sulfur emissions for 12 western european countries was analyzed over a period of more than 150 years the analysis also looked at the impact of air pollution regulations on the shape of the income pollution relationship at both the aggregate and country levels we find an inverted u shaped relationship and the estimated turning points of most countries are plausible in addition environmental regulations are found to lower the ekc and they can also shift the turning point of the curve in some cases the shift is to the left and in a few to the right

timeliness and agglomeration an important element of the cost of distance is time taken in delivering final and intermediate goods we argue that time costs are qualitatively different from direct monetary costs such as freight charges the difference arises because of uncertainty unsynchronised deliveries can disrupt production and delivery time can force producers to order components before demand and cost uncertainties are resolved using several related models we show that this generates a hitherto unexplored mechanism for clustering if final assembly takes place in two locations and component production has increasing returns to scale then component production will tend to cluster around just one of the assembly plants

the environmental kuznets curve economic growth renewable and non renewable energy and trade in tunisia we use the autoregressive distributed lag ardl b ounds testing approach for cointegration with structural breaks and the ve ctor error correction model vecm granger causality approach in order to investigate relationships between per capita co 2 emissions gdp renewable and non renewable energy consumption and international trade exports or imports for tunisia during the period 1980 2009 we show the existence of a short run unidirectional causality running from tra de gdp co 2 emission and non renewable energy to renewable energy our long run estimates show that non renewable energy and trade have a positive impact on co 2 emissions whereas renewable energy impacts weakly and negatively co 2 emission when using the model with exports and this impact is statistically insignificant when using the model wi th imports the inverted u shaped environmental kuznets curve ekc hypothesis is not supported graphically and analytically in the long run this means that tunisia has not ye t reached the required level of per capita gdp to get an inverted u shaped ekc our main policy recommendations for tunisia are the following i to radically reform the subsidies system granted b y the tunisian government for fossil fuels consumption ii to encourage the use of renewable energy and ener gy efficiency by reinforcing actual projects and regulatory frame work iii to locate ports near exporting industrial zones or vice versa to reduce emission of pollution caused by the transport of merchandise iv to elaborate a strategy for maximizing its benefit from renewable energy technology transfer occurring when importing capita l goods v to encourage the creation of renewable energy projects for export to the eu with a proportion of production for national consumption

transboundary externalities in the environmental transition hypothesis the environmental kuznets curve ekc is a hypothesis which implies that it is possible to grow out of environmental degradation most theoretical models of the ekc relation have not accounted for transboundary and intergenerational externalities nor have empirical studies provided evidence that validates an inverted u shaped relation between environmental degradation and economic growth for pollution problems where the effects are far displaced or are long delayed

property rights protest and the siting of hazardous waste facilities ture since that time no major hwf has been sited anywhere in the united states the epa had anticipated that local opposition would make finding these sites an exceptionally difficult task their pessimism was well founded and if anything understated according to the hazardous waste counsultant s latest state by state review the outlook for siting hwfs in the future is even more bleak than in the past due in large part to what they term a worsening of the emotional atmosphere surrounding siting efforts this failure to site any new hwf has come about in spite of assurances by government and company officials that new facilities built according to the present standards would pose negligible risks to the local residents attempts have been made to break the deadlock by instituting extensive public participation procedures establishing state siting boards with the power to overrule local decision makers and requiring facility owners to compensate local governments for safety services the latter provided in this paper we argue that the ambiguous nature of the present property rights governing the siting of hwfs is an important cause of the stalemate we offer a new approach to siting which recognizes the de facto property rights assumed by local communities we propose a political market via a referendum

renewable energy consumption and income in emerging economies abstract increased economic growth and demand for energy in emerging economies is creating an opportunity for these countries to increase their usage of renewable energy this paper presents and estimates two empirical models of renewable energy consumption and income for a panel of emerging economies panel cointegration estimates show that increases in real per capita income have a positive and statistically significant impact on per capita renewable energy consumption in the long term a 1 increase in real income per capita increases the consumption of renewable energy per capita in emerging economies by approximately 3 5 long term renewable energy per capita consumption price elasticity estimates are approximately equal to 0 70

inequality as a cause of environmental degradation abstract this paper advances two hypotheses first the extent of an environmentally degrading economic activity is a function of the balance of power between the winners who derive net benefits from the activity and the losers who bear net costs second greater inequalities of power and wealth lead all else equal to more environmental degradation

renewable energy and macroeconomic efficiency of oecd and non oecd economies abstract this article analyzes the effects of renewable energy on the technical efficiency of 45 economies during the 2001 2002 period through data envelopment analysis dea in our dea model labor capital stock and energy consumption are the three inputs and real gdp is the single output increasing the use of renewable energy improves an economy s technical efficiency conversely increasing the input of traditional energy decreases technical efficiency compared to non oecd economies oecd economies have higher technical efficiency and a higher share of geothermal solar tide and wind fuels in renewable energy however non oecd economies have a higher share of renewable energy in their total energy supply than oecd economies

economic growth and environmental degradation the environmental kuznets curve and sustainable development abstract in this paper we critically examine the concept of the environmental kuznets curve ekc it proposes that there is an inverted u shape relation between environmental degradation and income per capita so that eventually growth reduces the environmental impact of economic activity the concept is dependent on a model of the economy in which there is no feedback from the quality of the environment to production possibilities and in which trade has a neutral effect on environmental degradation the actual violation of these assumptions gives rise to fundamental problems in estimating the parameters of an ekc the paper identifies other econometric problems with estimates of the ekc and reviews a number of empirical studies the inference from some such ekc estimates that further development will reduce environmental degradation is dependent on the assumption that world per capita income is normally distributed when in fact median income is far below mean income we carry out simulations combining ekc estimates from the literature with world bank forecasts for economic growth for individual countries aggregating over countries to derive the global impact within the horizon of the bank s forecast 2025 global emissions of so 2 continue to increase forest loss stabilizes before the end of the period but tropical deforestation continues at a constant rate throughout the period

the determinants of atmospheric so2 concentrations reconsidering the environmental kuznets curve this analysis explores the effects of income and the spatial intensity of economic activity on the atmospheric concentration of sulfur dioxide the results indicate that there is a u shaped relation between income and atmospheric concentration of so2 and an inverted u shaped relation between the spatial intensity of economic activity and so2 concentrations these results suggest that the spatial intensity of economic activity rather than income provides the impetus for policies and technologies that reduce so2 emissions based on this result the atmospheric concentration of so2 in developing nations may decline faster than indicated by previous analyses the potential for this decline depends on the rate at which income grows relative to population the trade off between the effects of income gains and the spatial intensity of economic activity on the atmospheric concentration of so2 is consistent with the notion that some environmental problems can be ameliorated by slowing population growth and increasing income levels

renewable and non renewable energy consumption and economic activities further evidence from oecd countries this article examines the dynamic relationship between renewable and non renewable energy consumption and industrial output and gdp growth in oecd countries using data over the period of 1980 2011 the panel cointegration technique allowing structural breaks is used for empirical investigation the results show that there is a long term equilibrium relationship among non renewable and renewable energy sources industrial output and economic growth the panel causality analyses show bidirectional causality between industrial output and both renewable and non renewable energy consumption in the short and long run however there is evidence of bidirectional short run relationship between gdp growth and non renewable energy consumption while unidirectional causality between gdp growth and renewable energy consumption these results indicate that oecd economies still remain energy dependent for their industrial output as well as overall economic growth however expansion of renewable energy sources is a viable solution for addressing energy security and climate change issues and gradually substituting renewable to non renewable energy sources could enhance a sustainable energy economy

co2 emissions energy consumption and economic growth in turkey abstract this paper examines the long run and causal relationship issues between economic growth carbon emissions energy consumption and employment ratio in turkey by using autoregressive distributed lag bounds testing approach of cointegration empirical results for turkey over the period 1968 2005 suggest an evidence of a long run relationship between the variables at 5 significance level in turkey the estimated income elasticity of carbon emissions per capita is 0 606 and the income elasticity of energy consumption per capita is 1 375 results for the existence and direction of granger causality show that neither carbon emissions per capita nor energy consumption per capita cause real gdp per capita but employment ratio causes real gdp per capita in the short run in addition ekc hypothesis at causal framework by using a linear logarithmic model is not valid in turkish case the overall results indicates that energy conservation policies such as rationing energy consumption and controlling carbon dioxide emissions are likely to have no adverse effect on the real output growth of turkey

agglomeration opportunism and the organization of production abstract recent economic analysis of outsourcing has emphasized its international dimension in contrast this paper focuses on local outsourcing the paper specifies and solves a model where the organization of production vertically integrated or not and the location of production agglomerated or not are jointly determined the paper shows that agglomeration reduces opportunism a thick market effect and so serves as a substitute for integration this force will lead firms to agglomerate the paper also shows that the normative properties of equilibrium with local outsourcing are not as clear cut as for international outsourcing since local agglomeration is achieved at the cost of congestion local markets may be too thick which would not be the case for an increase in the thickness of a world market finally the many changes in economic and social circumstance that have been labeled globalization do not impact only vertically integrated firms they also impact cities and industry clusters to the extent that agglomeration is a substitute for vertical integration

solow meets leontief economic growth and energy consumption abstract this paper proposes a methodology that integrates a growth model with an input output model to analyze the impacts of economic growth on the consumption of energy the integration between the models is carried out by calibrating the growth module which incorporates energetic inputs renewable and nonrenewable in the production function and implementing shocks by the supply side capital labor renewable and nonrenewable energy in the input output model this allows us to verify the pattern of energy consumption for each sector in the input output matrix we apply this methodology to study the energy consumption of eleven economic sectors in brazil using data from the brazilian national accounts and input output matrix ibge and the national energy report ben we conduct experiments involving changes in technological progress growth rate extraction and regeneration rates of both renewable and nonrenewable resources and population growth to analyze the impact of changes in the parameters of the model on the sectoral output growth rate and consequently on the consumption of energy in each economic sector

environment and development theory and international evidence the environmental effects of economic development have significant implications for a wide array of policy questions facing both low and high income countries today internationally agricultural research centers are considering how to incorporate sustainability issues into their research agendas while international lending institutions are taking a close look at the environmental consequences of industrial projects domestically the north american free trade agreement has brought the relationship between economic development and environmental quality to the forefront of u s public policy debate it is surprising that despite the postwar growth of development economics the genesis of environmental economics and the fusion of ideas from both fields into the theme of sustainable development economists have not made much progress in describing the impacts of long term economic growth on environmental quality yet a vigorous public debate has arisen between individuals who maintain that environmental degradation is a necessary outcome of economic growth and those who believe that economic growth and environmental quality go hand in hand this debate was highlighted at the 1992 united nations conference on environment and development in rio de janeiro in part this debate hinges on the properties of the aggregate demand for and supply of environmental quality if the income elasticity of demand for environmental quality or amenities is high then the increased prosperity engendered by economic growth could lead to significantly higher demand for environmental quality proponents of economic growth believe this demand will translate into a higher realized level of quality as both public and private institutions and organi

are there increasing returns to pollution abatement empirical analytics of the environmental kuznets curve in pesticides abstract according to the environmental kuznets curve ekc hypothesis economic growth and the reduction of environmental degradation are compatible goals an inverted u shaped relationship between economic performance and environmental pollution suggests that empirically an economy is associated with smaller levels of pollution after some threshold income point one potential explanation for the empirical evidence of an ekc is increasing returns to pollution abatement where the abatement efficiency rises with an increase in the scale of abatement doubling the clean up efforts more than doubles the abatement of pollution as this efficiency gain makes abatement less expensive pollution might fall as more abatement is undertaken this study tests the hypothesis that there are increasing returns to abating pollution empirical evidence on environmental risks in the us agricultural sector since 1970 support the existence of increasing returns in addition i estimate the productivity of pollution abatement using refined empirical productivity measurement methods and explicitly control the level of technology the results show the importance of including an environmental productivity variable in the ekc framework

are there limits to growth a simple theoretical model of pollution is developed that generates an inverted u shape relationship between per capita income and environmental quality this model is then used to study long run growth the same inverted u shape is shown to appear in time series and the prospects for sustained growth are shown to hinge on whether increasingly strict environmental regulation is compatible with a constant rate of return on capital implementation is also studied tax and voucher schemes are shown to have an advantage over direct regulation because they provide the correct incentives for capital accumulation copyright 1998 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

on the causal dynamics between economic growth renewable energy consumption co2 emissions and trade openness fresh evidence from brics countries abstract the current study investigates the causal relationship between economic growth and renewable energy consumption in the brics countries over the period 1971 2010 within a multivariate framework the ardl bounds testing approach to cointegration and vector error correction model vecm are used to examine the long run and causal relationships between economic growth renewable energy consumption trade openness and carbon dioxide emissions empirical evidence shows that based on the ardl estimates there exist long run equilibrium relationships among the competing variables regarding the vecm results bi directional granger causality exists between economic growth and renewable energy consumption suggesting the feedback hypothesis which can explain the role of renewable energy in stimulating economic growth in brics countries

the standard error of regressions statistical significance as used in economics has weak theoretical justification in particular it merges statistical and substantive significance the 182 papers using regression analysis in the american economic review in the 1980s were tested against 19 criteria for the accepted use of statistical significance most some three quarters of the papers did poorly likewise textbooks in econometrics do not distinguish statistical and economic significance statistical significance should not be the focus of empirical economics

economic growth and greenhouse gas emissions abstract recent empirical research has examined the relationship between certain indicators of environmental degradation and income concluding that in some cases an inverted u shaped relationship which has been called an environmental kuznets curve ekc exists between these variables unfortunately this inverted u shaped relationship does not hold for greenhouse gas emissions one explanation of the absence of ekc like behavior in greenhouse gas emissions is that greenhouse gases are special pollutants that create global not local disutility but the international nature of global warming is not the only reason that prevents de linking greenhouse gas emissions from economic growth the intergenerational nature of the negative impact of greenhouse gas emissions may have also been an important factor preventing the implementation of greenhouse gas abatement measures in the past in this paper we explore the effect that the presence of intergenerational spillovers has on the emissions income relationship we use a numerically calibrated overlapping generations model of climate economy interactions we conclude that 1 the intertemporal responsibility of the regulatory agency 2 the institutional capacity to make intergenerational transfers and 3 the presence of intergenerationally lagged impact of emissions constitute important determinants of the relationship between economic growth and greenhouse gas emissions

grazing the commons an empirical analysis of externalities subsidies and sustainability abstract an empirical means of measuring externalities in the fifty states of the us is presented and the relationship between externalities subsidies and sustainability is investigated firms seeking to maximize profits create externalities thus securing implicit internal subsidies the subsidies are generally supported by those less well off and the socioeconomic energy and environmental indicators of the public sector worsen as externalities and subsidies increase implicit subsidies due to externalities in pollution control energy consumption and taxes are quantified the amount of subsidy is calculated by state and statistically compared to socioeconomic energy environmental and economic variables poverty unemployment and income disparity are found to increase significantly while income economic development attractiveness energy efficiency and environmental quality decline with increasing externalization across states an empirical method of operationalizing sustainability is presented and the relationship of sustainability to subsidies is investigated and found to be significant and negative recommendations are presented for minimizing the effects of externalities

causal relationship between energy consumption and gdp growth revisited a dynamic panel data approach abstract this paper uses the panel data of energy consumption and gdp for 82 countries from 1972 to 2002 based on the income levels defined by the world bank the data are divided into four categories low income group lower middle income group upper middle income group and high income group we employ the gmm sys approach for the estimation of the panel var model in each of the four groups afterwards the causal relationship between energy consumption and economic growth is tested and ascertained we discover a in the low income group there exists no causal relationship between energy consumption and economic growth b in the middle income groups lower and upper middle income groups economic growth leads energy consumption positively c in the high income group countries economic growth leads energy consumption negatively after further in depth analysis of energy related data the results indicate that in the high income group there is a great environmental improvement as a result of more efficient energy use and reduction in the release of co2 however in the upper middle income group countries after the energy crisis the energy efficiency declines and the release of co2 rises since there is no evidence indicating that energy consumption leads economic growth in any of the four income groups a stronger energy conservation policy should be pursued in all countries

causes of world trade growth in agricultural and food products 1951 2000 a demand function approach the objective of the present study is to analyse the causes of the growth of international agricultural and food trade in volume terms from 1951 to 2000 the results suggest that income growth has been the principal reason for this expansion while exchange rate stability and the real price of agricultural products played only a minor role multilateral trade liberalization and trade costs given their long term stability are not elements that could have stimulated their growth finally the intensive liberalization of trade which took place in various economic regions especially in europe became a key factor in promoting agricultural trade among the countries participating in regional trade agreements the study results also indicate that the determinants of trade growth for these goods were different to those for other goods and other periods

renewable energy consumption co2 emissions and oil prices in the g7 countries abstract economic and societal issues related to energy security and global warming is placing greater emphasis on the consumption of renewable energy this paper presents and estimates an empirical model of renewable energy consumption for the g7 countries panel cointegration estimates show that in the long term increases in real gdp per capita and co2 per capita are found to be major drivers behind per capita renewable energy consumption these results are robust across two different panel cointegration estimators oil price increases have a smaller although negative impact on renewable energy consumption deviations from equilibrium are driven mostly by the error correction term as opposed to short term shocks short term deviations from the long term equilibrium take anywhere from between 1 3 years france and 7 3 years japan to correct

driving force of rising renewable energy in china environment regulation and employment abstract this paper studies the development of renewable energy in china by examining the driving force of environment quality regulation and employment on renewable energy generation we adopt renewable energy as a metric for environment quality and test the relationship between renewable energy and income using environment kuznets curve ekc theories the impact of employment on renewable energy is tested and dummy variables are used to indicate when the regulation was in effect the results show that there exists a quadratic relationship between renewable energy and income but the results fail to provide that the renewable energy generation is a job creator when the lagged unemployment rate is included as an explaining variable we consider the employment population and the finding shows that the employment can promote the development of renewable energy the regulation has significantly positive impacts on renewable energy the interaction of income and employment show that along with the income increases the impacts of employment on renewable energy decrease our findings are helpful for government to figure out the determinants for rising the renewable energy generation and take efficient measures to promote its development

inside the black box technology and economics economists have long treated technological phenomena as events transpiring inside a black box and on the whole have adhered rather strictly to a self imposed ordinance not to inquire too seriously into what transpires inside that box the purpose of professor rosenberg s work is to break open and examine the contents of the black box in so doing a number of important economic problems be powerfully illuminated the author clearly shows how specific features of individual technologies have shaped a number of variables of great concern to economists the rate of productivity improvement the nature of learning processes underlying technological change itself the speed of technology transfer and the effectiveness of government policies that are intended to influence technologies in particular ways the separate chapters of this book reflect a primary concern with some of the distinctive aspects of industrial technologies in the twentieth century such as the increasing reliance upon science but also the considerable subtlety and complexity of the dialectic between science and technology other concerns include the rapid growth in the development of costs associated with new technologies as well as the difficulty of predicting the eventual performance characteristics of newly emerging technologies

environment kuznets curve for co2 emissions a cointegration analysis for china abstract this study examines the long run relationship between carbon emissions and energy consumption income and foreign trade in the case of china by employing time series data of 1975 2005 in particular the study aims at testing whether environmental kuznets curve ekc relationship between co 2 emissions and per capita real gdp holds in the long run or not auto regressive distributed lag ardl methodology is employed for empirical analysis a quadratic relationship between income and co 2 emission has been found for the sample period supporting ekc relationship the results of granger causality tests indicate one way causality runs through economic growth to co 2 emissions the results of this study also indicate that the carbon emissions are mainly determined by income and energy consumption in the long run trade has a positive but statistically insignificant impact on co 2 emissions

pollution intensity of gdp and trade policy can the world bank be wrong abstract what are the environmental implications of open trade policies in developing countries economic theory and environmental critics suggest they worsen environmental quality this conventional wisdom has been challenged by several studies which suggest that outward oriented trade policies are likely to be win win enhance economic growth and environmental quality this paper challenges revised conventional wisdom rcw by demonstrating that developing countries with outward oriented trade policies have higher pollution intensities of gdp than those following inward oriented policies the paper examines why the evidence reported here differs so sharply from rcw studies considers the policy implications of these results and identifies reasons why despite them it may not make sense to totally discount future potential win win opportunities

economic growth inequality democratization and the environment we augment the stokey 1998 model by allowing agents to differ with respect to environ mental quality and income in order to analyze the impact of income and environmental inequality and of democratization on aggregate pollution we find that the impact of a more equal income distribution depends on the degree of democracy in a complete democracy a more equal income distribution generates ceteris paribus less pollution which is consistent with indirect empirical evidence whereas the opposite is the case if democratic rights are highly restricted furthermore a democratization is argued to typically lower both the income and the environmental quality of the median voter in this case if in utility terms the fall in environmental quality is worse than the fall in consumption the median voter decides to tighten environmental legislation so that aggregate pollution decreases

renewable energy consumption and economic growth evidence from a panel of oecd countries abstract this study examines the relationship between renewable energy consumption and economic growth for a panel of twenty oecd countries over the period 1985 2005 within a multivariate framework given the relatively short span of the time series data a panel cointegration and error correction model is employed to infer the causal relationship the heterogeneous panel cointegration test reveals a long run equilibrium relationship between real gdp renewable energy consumption real gross fixed capital formation and the labor force with the respective coefficients positive and statistically significant the granger causality results indicate bidirectional causality between renewable energy consumption and economic growth in both the short and long run

renewable energy consumption economic growth nexus for china abstract the aim of this paper is to investigate the relationship between renewable energy consumption and economic growth in china for the period 1977 2011 autoregressive distributed lag approach ardl to cointegration and johansen cointegration techniques are employed by including intermittent variables namely carbon dioxide emissions and labor we also employed granger causality test in order to determine the direction of the causality among the variables the results show that there is a bi directional long term causality between renewable energy consumption and economic growth this finding implies that growing economy in china is propitious for the development of renewable energy sector which in turn helps to boost economic growth we also find that labor influences renewable energy consumption in the short term however there is no evidence of long or short run causality between carbon emissions and renewable energy consumption this implies that actual level of renewable energy in china is still insignificant and not considerably exploited in order to contribute to the mitigation of carbon dioxide emissions

rural versus urban preferences for renewable energy developments development of renewable energy resources such as wind farms and hydro electric schemes are being promoted as a new method of expanding and diversifying employment in rural areas however such energy projects are associated with a range of environmental impacts which might be detrimental to other economic activities such as those based on nature tourism the authors use a choice experiment to quantify peoples preferences over environmental and employment impacts that may result from the deployment of renewable energy projects in rural areas of scotland focussing in particular on any differences between the preferences of urban and rural dwellers and on heterogeneity within these groups rural and urban households are shown to have different welfare gains which are dependent on the type of renewable energy technology and on the scale of project under consideration

transportation costs and international trade in the second era of globalization while the precise causes of postwar trade growth are not well understood declines in transport costs top the lists of usual suspects however there is remarkably little systematic evidence documenting the decline this paper brings to bear an eclectic mix of data in order to provide a detailed accounting of the time series pattern of shipping costs the ad valorem impact of ocean shipping costs is not much lower today than in the 1950s with technological advances largely trumped by adverse cost shocks in contrast air shipping costs have dropped an order of magnitude and airborne trade has grown rapidly as a result as a result international trade has also experienced a significant rise in speed

exploring the existence of kuznets curve in countries environmental efficiency using dea window analysis abstract this paper using data envelopment dea window analysis and generalized method of moments gmm estimators examines the existence of a kuznets type relationship between countries environmental efficiency and national income specifically it measures the environmental efficiency of 17 oecd countries by constructing environmental efficiency ratios for the time period 1980 2002 the analysis with the application of dynamic panel data reveals that there isn t a kuznets type relationship between environmental efficiency and income allowing for dynamic effects we find that the adjustment to the target ratio is instantaneous we also find that increased economic activity does not always ensure environmental protection and thus the path of growth is important in addition to the growth itself

income and co2 emissions evidence from panel unit root and cointegration tests abstract this paper re investigates the stationarity properties of per capita carbon dioxide co 2 emissions and real gross domestic product gdp per capita for 109 countries within seven regional panel sets covering 1971 2003 we apply the recent unit root test of the panel seemingly unrelated regressions augmented dickey fuller suradf test developed by breuer et al 2001 misleading inferences from panel unit root tests with an illustration from purchasing power parity review of international economics 9 482 493 2002 series specific unit root tests with panel data oxford bulletin of economics and statistics 64 527 546 the panel suradf test accounts for the presence of cross country correlations in the data and the parameters in the panel specification vary across countries more importantly this test allows us to identify how many and which members of the panel contain a unit root overall our empirical results illustrate that real gdp and co 2 emissions in these countries are a mixture of i 0 and i 1 processes and that the traditional panel unit root tests could lead to misleading inferences as well as the conduct of cointegration analysis being perhaps inappropriate the results of our analysis carry critical implications for the modeling of co 2 emissions and gdp because of the different orders of integration for the two variables

a theory of competition among pressure groups for political influence this paper presents a theory of competition among pressure groups for political influence political equilibrium depends on the efficiency of each group in producing pressure the effect of additional pressure on their influence the number of persons in different groups and the deadweight cost of taxes and subsidies an increase in deadweight costs discourages pressure by subsidized groups and encourages pressure by taxpayers this analysis unifies the view that governments correct market failures with the view that they favor the politically powerful both are produced by the competition for political favors

inequality growth and environmental quality trade offs in a model with human capital accumulation this paper develops a simple endogenous growth model where pollution exposure and vulnerability are unequally spread across the population and growth and distribution are endogenous in this set up we investigate whether trade offs between growth distributional and environmental concerns may emerge we show that a tighter environmental policy reduces income inequality and can improve both growth and total welfare immediate welfare losses though do occur and are larger for countries that start at low levels of environmental quality e g developing countries inegalite croissance et qualite de l environnement arbitrages dans un modele d accumulation de capital humain nous developpons un modele de croissance endogene ou l exposition et la vulnerabilite a la pollution sont inegalement reparties dans la population et ou la croissance et la distribution des revenus sont determinees de facon endogene dans ce cadre d analyse nous cherchons s il existe des arbitrages entre la croissance les inegalites et l environnement notamment dans les pays en developpement nous montrons qu une politique environnementale plus stricte conduit a la fois a une reduction des inegalit es et a une augmentation de la croissance et du bien etre dans un premier temps cependant ce changement de politique conduit a une reduction du bien etre qui est relativement plus importante pour les pays dont la qualite environmentale est initiallement faible e g les pays en developpement

economic welfare impacts from renewable energy consumption the china experience over the last years renewable energy sources have increased their share on electricity generation of china due to environmental and security of supply concerns in this work author assesses the role of both the amount and share of renewable energy consumption in economic welfare using cobb douglas type production functions this assessment is carried out by multivariate ols and spss software for china from 1978 to 2008 results indicate that a 1 increase in renewable energy consumption rec increases real gdp by 0 120 gdp per capita by 0 162 per capita annual income of rural households by 0 444 and per capita annual income of urban households by 0 368 respectively the impact of renewable energy consumption share srec on economic welfare is insignificant and an increasing share of rec negatively affects economic welfare growth to a certain extent in this paper the cost structural demand accounting mechanism and policy reasons of renewable energy development are interpreted marginal effects analysis show that the shape of sound and robust renewable energy institutions and policies would matter for increasing the standards of economic welfare in the context of speeding up renewable energy development and increasing share of renewable energy consumption especially the goal oriented policy refinement should be addressed efficiently in improvement households income while increasing share of renewable energy consumption c 2011 elsevier ltd all rights reserved

income inequality and pollution a reassessment of the environmental kuznets curve abstract improvements in some measures of air and water quality can accompany rising per capita income as illustrated by the so called environmental kuznets curve for pollution variables which show such a relationship we hypothesize that a more equitable distribution of power contributes to these outcomes by enhancing the influence on policy of those who bear the costs of pollution relative to the influence of those who benefit from pollution generating activities an empirical analysis of international variations in seven indicators of air and water quality supports this hypothesis literacy political rights and civil liberties are found to have particularly strong effects on environmental quality in low income countries

outsourcing in a global economy we study the determinants of the location of subcontracted activity in a general equilibrium model of outsourcing and trade we model outsourcing as an activity that requires search for a partner and relationship specific investments that are governed by incomplete contracts the extent of international outsourcing depends inter alia on the thickness of the domestic and foreign market for input suppliers the relative cost of searching in each market the relative cost of customizing inputs and the nature of the contracting environment in each country

the relationship between disaggregate energy consumption and industrial production in the united states an ardl approach abstract we re examine the relationship between disaggregate energy consumption and industrial output as well as employment in the united states using the autoregressive distributed lag ardl approach developed by pesaran and pesaran pesaran m h pesaran b 1997 working with microfit 4 0 camfit data ltd cambridge and pesaran shin and smith pesaran m h shin y smith r j 2001 bounds testing approaches to the analysis of level relationships journal of applied econometrics 16 289 326 in particular we focus attention on the following energy consumption variables coal fossil fuels conventional hydroelectric power solar energy wind energy natural gas wood and waste the sample period covers 2001 1 2005 6 our results imply that real output and employment are long run forcing variables for nearly all measures of disaggregate energy consumption

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

is there an environmental kuznets curve for sulfur abstract most existing estimates of the environmental kuznets curve ekc for sulfur which use samples of mainly high income countries indicate a maximum emissions turning point at middle to lower high income levels of gdp per capita we use a larger and more globally representative sample than previous sulfur ekc studies we find that sulfur emissions per capita are a monotonic function of income per capita when we use a global sample and an inverted u shape function of income when we use a sample of high income countries a model estimated in first differences results in a monotonic ekc when estimated with both high income and global samples reductions in emissions are time related rather than income related

energy consumption and economic growth in central america evidence from a panel cointegration and error correction model abstract this study examines the relationship between energy consumption and economic growth for six central american countries over the period 1980 2004 within a multivariate framework given the relatively short span of the time series data a panel cointegration and error correction model is employed to infer the causal relationship based on the heterogeneous panel cointegration test by pedroni pedroni p 1999 critical values for cointegration tests in heterogeneous panels with multiple regressors oxford bulletin of economics and statistics 61 653 670 pedroni p 2004 panel cointegration asymptotic and finite sample properties of pooled time series tests with an application to the ppp hypothesis new results econometric theory 20 597 627 cointegration is present between real gdp energy consumption the labor force and real gross fixed capital formation with the respective coefficients positive and statistically significant the granger causality results indicate the presence of both short run and long run causality from energy consumption to economic growth which supports the growth hypothesis

pollution control under uncertainty and sustainability concern we analyze the implications of environmental policy on pollution in a stochastic framework with finite horizon and sustainability concern the social planner seeks to minimize the social environmental and economic costs associated with pollution we allow for the planner to attach different relative weights to the discounted and end of planning horizon costs in order to assess how sustainability concern might affect the optimal level of policy intervention we show that the optimal environmental policy increases with the degree of sustainability concern reducing thus the amount of pollution the society is forced to bear a calibration based on world textit co 2 data supports our conclusions further highlighting the importance of higher degrees of sustainability concern to achieve greener long run outcomes it also allows us to show that under a realistic model s parametrization the optimal environmental policy tends to rise with higher degrees of uncertainty in a precautionary manner

do we really understand the development of china s new energy industry abstract countries all over the world have realized that the key to resolving the dilemma between accelerated energy consumption and reduction in carbon dioxide emission is to actively develop new energy industry many scholars have conducted in depth investigation into the main driving forces of the new energy industry however they often adhere to an assumption that the effect of the driving forces on new energy industry is constant across areas ignoring the spatial heterogeneity in economic phenomena geographically weighted regression gwr model and the use of local sample data to implement parameter estimation can make up for the inadequacies of existing research therefore this paper uses the gwr model to carefully investigate the new energy industry the results show that the impact of economic growth on the new energy industry in the eastern region is higher than in the central and western regions owing to the differences in economic structure and fixed asset investment the impact of foreign energy dependence continuously declines from the eastern region to the central and western regions this is attributable to the differences in natural gas and oil imports technological progress has a similar effect on account of the differences in r d funding and r d personnel investments however the impact of the agriculture industry in the central region is higher than in the eastern and western regions due to the differences in crop acreage and agricultural output this study improves our understanding of the new energy industry and would help local authorities to formulate targeted policies for promoting the growth of new energy industry