co benefit of carbon mitigation on resource use in china abstract on one hand natural resources and energy provide the basis for life on earth but waste and emissions are produced during their throughput on the other hand china as the most populous country and an emerging economic powerhouse has taken on the challenge of hitting peak carbon dioxide co2 emissions by 2030 pursuing resource co benefits from carbon mitigation is an effective approach for china on the road to achieving the 2030 goal in this study we combine the computable general equilibrium cge model and the economy wide material flow accounts or analysis ew mfa method to estimate china s future co2 emissions and resource consumption and their co benefit effect three scenarios are analyzed business as usual bau nationally determined contributions ndc and the scenario of achieving the 2 degree target 2deg we find that both the ndc and 2deg targets can be achieved by 2030 without a significant compromise in economic growth with the effect of carbon mitigation china s resource consumption would rise by a factor of 1 7 bau 1 6 ndc and 1 5 2deg during 2012 2030 and the reduction in co benefits of metal ores nonmetallic minerals and fossil fuels would be 0 6 billion tons and 1 4 billion tons 0 8 billion tons and 2 0 billion tons and 2 6 billion tons and 4 6 billion tons for ndc and 2deg respectively sectoral disparity indicates that sectors with high emissions and resource consumption include traditional heavy industrial sectors and energy related sectors for which additional mitigation policies should be employed not only because they offer the most co benefit effects but they also have the least cost

forward looking assessment of the ghg abatement cost application to china abstract evaluation of abatement costs is critical in setting reduction goals and devising climate policy however reliable forward looking assessment of the short term effects of climate policy remains a major challenge using panel data of 30 chinese provinces during 1997 2015 we first estimate the marginal co2 abatement costs using a novel data driven approach convex quantile regression based on the marginal abatement cost estimates and china s plans regarding carbon intensity reduction and economic growth we present a forward looking assessment of the abatement costs for chinese provinces for 2016 2020 our main finding is that all the chinese provinces have a negative abatement cost which means these provinces can benefit from an increase in the absolute level of co2 emissions despite the constraint on carbon intensity the magnitudes of economic benefits exhibit a significant regional disparity because some provinces can increase more co2 emissions than others however there is still costly carbon intensity abatement relative to a counterfactual where the provinces meet their economic growth targets but in the absence of the intensity reduction constraints policy implications have been proposed to enhance the efficiency and fairness of climate policy in china

a general equilibrium analysis on the impacts of regional and sectoral emission allowance allocation at carbon trading market abstract it is critical to adapt to climate change and reduce the overall carbon emissions china announced its nationally determined contributions ndc at the paris climate conference in 2015 the carbon cap and trade scheme which plays a key role in carbon emissions abatement is an effective policy for china to achieve its ndc this study focuses on the allocation of regional and sectoral initial carbon emission allowances in shanghai an impact evaluation on the macro economy carbon trading markets and participating sectors for the year 2030 was conducted by applying a computable general equilibrium cge model the results show that the carbon cap and trade scheme would cause a 3 4 gdp loss and an 8 9 welfare loss in 2030 the carbon price would be 161 2 usd t and 147 2 usd t under the two representative scenarios the allocation of initial allowances would have a significant impact on both carbon market scale and sectoral trading behaviors the power generation sector and the petrol oil sector would undertake the greatest output loss while the metal smelting sector would become the main seller furthermore the initial allowances allocation under a certain abatement target would hardly affect sectoral production but remarkably affect trade behaviors at the carbon trading markets

non existence of market clearing wages when the output market is imperfectly competitive abstract in a sector in which oligopolistic firms face a sector specific labour supply constraint there may be no market clearing wage instead at some wages there can be two equilibria one with involuntary unemployment and one with unfilled vacancies

analysis of the economic impact of different chinese climate policy options based on a cge model incorporating endogenous technological change abatement cost is the main concern for climate change mitigation and the key factor for mitigation cost is technological change this study established an integrated economic energy environmental dynamic computable general equilibrium cge model representing endogenous technological change for china s climate change policy analysis this study analyzed and compared the economic impact of different approaches to mitigation commitments as well as the potential role of technological change in the formulation of mitigation targets and commitments taking into account china s climate policy making needs based on the current international climate negotiation process the results show that absolute emission limits similar to the kyoto protocol will seriously impede the future economic development of china while the impact of an 80 reduction in carbon intensity forecast for 2050 based on the 2005 level is relatively small technological change can promote economic growth improve energy efficiency and reduce carbon intensity per unit of output through the substitution of production factors consequently it can reduce marginal abatement cost and related gdp loss by mitigation at the same time it can increase mitigation potentials and extend the emission reduction amount showing that consideration of the impact of technological change when deciding the emission reduction targets is necessary

on monopolistic competition and involuntary unemployment in a simple temporary general equilibrium model it is shown that if the number of firms is small imperfect price competition in the markets for goods may be responsible for the existence of unemployment at any given positive wage in our examples involving two firms facing their true demand curves total monopolistic labor demand remains bounded as the wage rate goes to zero and unemployment prevails for a sufficiently large inelastic labor supply in the competitive case total labor demand would go to infinity and intersect labor supply at a positive wage

firm incentives to promote technological change in pollution control reply abstract the process of technological change in pollution control is broken into three basic steps innovation diffusion and optimal agency response firm incentives to promote these steps are then examined under five regulatory regimes direct controls emission subsidies emission taxes free marketable permits and auctioned marketable permits on a relative basis emission taxes and auctioned permits provide the highest firm incentives to promote technological change at times free permits generate lower incentives direct controls which are common regulatory tools usually provide the lowest relative firm incentives to promote technological change

interprovincial migration and the stringency of energy policy in china the authors thank eni s p a icf international shell international limited and the french development agency afd founding sponsors of the china energy and climate project we also gratefully acknowledge the support of the energy information administration at the u s department of energy we are also thankful for support provided by the ministry of science and technology of china the national development and reform commission and rio tinto china we further gratefully acknowledge the financial suppo rt for this work provided by the mit joint program on the science and policy of global change through a consortium of industrial sponsors and federal grants this work is also supported by the doe integrated assessment grant de fg02 94er61937

general equilibrium electricity generation technologies and the cost of carbon abatement a structural sensitivity analysis abstract electricity generation is a major contributor to carbon dioxide emissions and abatement in this sector is a key determinant of economy wide regulation costs the complexity of an integrated representation of economic and electricity systems makes simplifying assumptions appealing but there is no evidence in the literature on how important the pitfalls may be the aim of this paper is to provide such evidence drawing on numerical simulations from a suite of partial and general equilibrium models that share common technological features and are calibrated to the same benchmark data we report two basic findings first general equilibrium inter sectoral effects of an economy wide carbon policy are large it follows that assessing abatement potentials and price changes in the electricity sector with a partial equilibrium marshallian demand can only provide a crude approximation of the complex demand side interactions second we provide evidence that widely used top down representations of electricity technologies produce fuel substitution patterns that are inconsistent with bottom up cost data this supports the view that the parametrization of substitution possibilities with highly aggregated production functions is difficult to validate empirically the overall picture that emerges is one of large quantitative and even qualitative differences highlighting the role of key structural assumptions in the interpretation of climate policy projections

involuntary unemplyment in imperfectly competitive general equilibrium models this paper is about involuntary unemployment in general equilibrium models with imperfect competition it surveys papers written after the seminal work of d aspremont dos santos ferreira and gerard varet 1984 this unemployment is called involuntary because it exists at any wage it results from imperfect competition in the product markets more specifically from firms excessive market power these papers have focussed their attention on the conditions required for involuntary unemployment in our presentation we characterise this form of unemployment through three elements consumers preferences price expectations and ford effects each element is important because it influences the demand for the good and hence its price elasticity the latter being central in the definition of firms market power jel classification d43 e24

estimates of energy subsidies in china and impact of energy subsidy reform abstract for a transitional economy such as china some energy subsidies are reasonable and sometimes even necessary for achieving social goals however with rising energy prices and environmental concerns we see conflicts emerging between energy subsidies energy demand supply fundamentals and climate change considerations energy subsidies have important implications for sustainable development through their effects on energy use efficiency and the choice of fuel source this paper applies the price gap approach to estimate china s energy subsidies results indicate that china s energy subsidies amounted to cny 356 73 billion in 2007 equivalent to 1 43 of gdp subsidies for oil products consumption are the largest followed by subsidies for the electricity and coal sectors furthermore a cge model is used to analyze the economic impacts of energy subsidy reforms our findings show that removing energy subsidies will result in a significant fall in energy demand and emissions but will have negative impacts on macroeconomic variables we conclude that offsetting policies could be adopted such that certain shares of these subsidies are reallocated to support other sustainable development measures which could lead to reducing energy intensity and favoring the environment

innovations and the economics of new technology spreading within and across users gaps and way forward r d subsidies are often considered the main policy tool to stimulate the competitiveness and the innovativeness of firms this is especially true for innovations designed to produce greener products or cleaner and more energy efficient technologies however a consistent literature has now shown that even when a clean or a cost reducing technology is ready available in the market its spreading within intra or across inter households or firms takes several years and in some cases decades therefore it is not only important to generate innovations via investments in r d but it is also important that such innovations are adopted and used by firms this paper briefly illustrates the main theoretical approaches to the analysis of the factors leading to inter firm diffusion and emphasise the existing gap led by the paucity of literature on intra firm diffusion a final section briefly discusses some methodological issues surrounding the diffusion of consumer non durable technologies within and across households and how ad hoc models can be used to test the validity of environmental policies

environmental policy incentives to adopt advanced abatement technology abstract we investigate incentives through environmental policy instruments to adopt advanced abatement technology first we study the case where the regulator makes long term commitments to policy levels and does not anticipate arrival of new technology we show that taxes provide stronger incentives than permits auctioned and free permits offer identical incentives and standards may give stronger incentives than permits second we investigate scenarios where the regulator anticipates new technologies we show that with taxes and permits the regulator can induce first best outcomes if he moves after firms have invested whereas this does not always hold if he moves first

the impossibility of involuntary unemployment in an overlapping generations model with rational expectations abstract if there is unemployment no matter how low the wage rate becomes one speaks of involuntary unemployment this phenomenon has been shown to arise in a variety of temporary or atemporal macro models with imperfect competition in the goods markets in this paper we investigate whether the phenomenon of involuntary unemployment arises in a hartian overlapping generations model with rational expectations it does not neither in the short nor in the long run

energy caps alternative climate policy instruments for china abstract decoupling fossil energy demand from economic growth is crucial for china s sustainable development especially for addressing severe local air pollution and global climate change an absolute cap on coal or fossil fuel consumption has been proposed as a means to support the country s energy and climate policy objectives we evaluate potential energy cap designs that differ in terms of target fuel point of control and national versus regional allowance trading using a global numerical general equilibrium model that separately represents 30 provinces in china first we simulate a coal cap and find that relative to a cap on all fossil fuels it is significantly more costly and results in high localized welfare losses second we compare fossil energy cap designs and find that a national cap on downstream fossil energy use with allowance trading across provinces is the most cost effective third we find that a national fossil energy cap with trading is nearly as cost effective as a national co2 emissions trading system that penalizes energy use based on carbon content as a fossil energy cap builds on existing institutions in china it offers a viable intermediate step toward a full fledged co2 emissions trading system

revealing the political decision toward chinese carbon abatement based on equity and efficiency criteria abstract china s economic reform over the past 30 years has allowed the free market to drive economic development however government still plays a key role in the energy sector by allocating energy conservation and emissions abatement how does the government make an equity decision as a tradeoff to market efficiency this is an unanswered question the purpose of this paper is to illustrate the government s preference toward equity and efficiency using the provincial level co 2 intensity allocation data we investigate the political decision that the government made based on the equity and efficiency criteria we find that the equity index plays a more important role than the efficiency index in determining the co 2 intensity target in addition political factors such as social stability are found to be important factors

the role of globalization in energy consumption a quantile cointegrating regression approach abstract this paper examines the quantile behavior of the relationship between the nuances of globalization and energy consumption while incorporating capital and economic growth in case of top two most globalized countries netherlands and ireland by employing the recently developed quantile autoregressive distributed lag qardl model of cho et al 2015 the model is estimated using quarterly data over the period 1970q1 2015q4 the results indicate that the relationship is quantile dependent which may reveal misleading results in studies using traditional analyses that address the averages the wald test confirms our findings by rejecting the null hypothesis of parameter constancy for both the netherlands and ireland the changes in energy consumption are more responsive to past levels and past changes in globalization than the adjustment provided by the error correction method ecm interestingly the findings indicate that globalization is positively correlated with energy consumption in the long term for the two countries furthermore globalization shares a robust long term relationship with energy consumption energy consumption is strongly related to globalization in the long term however the short term effects of globalization on energy demand are limited for those countries important policy implications are then suggested based on the empirical results

dynamic incentives of environmental regulations the effects of alternative policy instruments on technology diffusion abstract we develop a framework for comparing empirically the effects of alternative environmental policy instruments on the diffusion of new technology market based and command and control approaches can he quantitatively compared by estimating the economic penalty that firms through their actions reveal to be associated with violation of standards in the context of concerns about global climate change we empirically examine the likely effects of pigouvian taxes technology adoption subsidies and technology standards we employ state level data on the diffusion of thermal insulation in new home construction comparing the effects of energy prices insulation cost and building codes

environmental policy stringency and technological innovation evidence from survey data and patent counts this article uses patent data to examine the impact of public environmental policy on innovations in environment related technology the analysis is conducted using data on an unbalanced panel of 77 countries between 2001 and 2007 drawing upon data obtained from the european patent office epo world patent statistical patstat database and the world economic forum s wef executive opinion survey the results support our hypotheses concerning the positive role of both general innovative capacity and environmental policy stringency on environment related innovation a subsequent two stage model assesses the factors which drive innovation in general and uses the fitted values to estimate environmental innovation while the analysis is conducted on a smaller sample they confirm the findings of the reduced form model

the intra firm diffusion of new process technologies the study of intra firm diffusion has largely been neglected and the limited extant literature overwhelmingly relies upon uncertainty reduction via information spreading or epidemic learning as the main driver in this paper an alternative approach is taken whereby the intra firm diffusion of new process technologies reflects the profitability of new technology adoption as proxied by firm characteristics the approach is tested using data relating to the diffusion of computer numerically controlled machine tools within firms in the uk engineering and metalworking sectors the empirical analysis does not reject the hypothesis that profitability considerations are important with a number of firm characteristics being isolated as of special relevance including firm size and the use of complementary technologies and managerial techniques however there is little support for the traditional epidemic effect

undominated prices in the three good model abstract any movement away from walrasian prices will make somebody worse off we ask which other prices share this property the paper characterizes the set of such prices called undominated prices for the three good economy output labor and a nonproduced good that is now well known from the work of barro grossman benassy and malinvaud we consider two groups of consumers workers and shareholders we show that under some conditions there exist prices and wages that generate unemployment and are undominated this requires that a workers be poorly endowed with the nonproduced good b there be little substitution in consumption between the produced and the nonproduced good and c the market for the produced good be balanced i e prices equal marginal costs

does energy policy hurt international competitiveness of firms a comparative study for germany switzerland and austria this paper investigates the impact of energy policies on the export performance of firms there has been a long policy debate on potentially negative impacts of cost increasing energy policies on international competitiveness we use firm level data from three countries with similar industry structure but different energy policies germany switzerland and austria we rely on firm manager assessments on the relevance of energy policy in terms of taxes regulations standards subsidies and demand stimulation for their firm operation and link data on the adoption and development of new energy technologies regression analyses and matching approaches both show very few impacts of energy policy on export performance suggesting that either policy impacts on firms cost are negligible in the period of study 2012 to 2014 or likely negative impacts are balanced by the adoption of new technology

how can china reach its co2 intensity reduction targets by 2020 a regional allocation based on equity and development in late 2009 the chinese government committed to cut its carbon dioxide emissions per unit of gross domestic product gdp by 40 to 45 of 2005 levels by 2020 this has raised the issue of how to allocate the co2 reduction target regionally to meet the national reduction target to meet this objective the following aspects may be taken into consideration equity principles common but differentiated responsibilities intensity reduction target fulfillment and economic difference and reduction potential among provinces this paper selects per capita gdp accumulated fossil fuel related co2 emissions and energy consumption per unit of industrial added value as indicators for emission reduction capacity responsibility and potential respectively based on these three indicators a comprehensive index is developed and an intensity allocation model constructed as decision makers may have different preferences when allocating the reduction burden we allocate different weights to the indicators analyzing the results using cluster analysis the following aspects may also be considered together with the national regional development strategy to determine how to share the burden the reduction potential of various regions implementation potential of the plans and promotion of a highly efficient low carbon economic development model

distributional impacts of carbon pricing a general equilibrium approach with micro data for households article i nfo many policies to limit greenhouse gas emissions have at their core efforts to put a price on carbon emissions carbon pricing impacts households both by raising the cost of carbon intensive products and by changing factor prices a complete analysis requires taking both effects into account the impact of carbon pricing is determined by heterogeneity in household spending patterns across income groups as well as heterogeneity in factor income patterns across income groups it is also affected by precise formulation of the policy how is the revenue from carbon pricing distributed as well as the treatment of other government policies e g the treatment of transfer payments what is often neglected in analyses of policy is the heterogeneity of impacts across households even within income or regional groups in this paper we incorporate 15 588 households from the u s consumer and expenditure survey data as individual agents in a comparative static general equilibrium framework these households are represented within the mit usrep model a detailed general equilibrium model of the u s economy in particular we categorize households by full household income factor income as well as transfer income and apply various measures of lifetime income to distinguish households that are temporarily low income e g retired households drawing down their financial assets from permanently low income households we also provide detailed within group distributional measures of burden impacts from various policy scenarios

which policy is more effective carbon reduction in all industries or in high energy consuming industries from dual perspectives of welfare effects and economic effects abstract carbon emission reduction policy is the main method to curb carbon emissions and tackle climate change however few studies have investigated the effectiveness of carbon emission reduction polices from the welfare and economic perspectives this study establishes a dynamic general equilibrium model with input output structure and compares the effects of emission reduction in all industries and in high energy consuming industries the main conclusions are that carbon emission reduction constraints for all industries have more significant negative impacts on consumption and social welfare compared to emission reduction constraints for high energy consuming industries to be more precisely carbon emission reduction in high energy consuming industries has comparative advantages in maintaining social welfare stability regarding economic effects compared with the carbon emission reduction in high energy consuming industries carbon emission reduction in all industries leads to a larger decline in total output and outputs of most industries however the role of carbon emission reduction in all industries is more significant in promoting employment the carbon emission reduction policies of all industries and high energy consuming industries have strengths in economic effects respectively the findings could provide references for the government to take appropriate measures to promote carbon emission reduction and economic growth

on the effect of high energy prices on investment empirical analyses of firm behaviour typically assume that there is a stable relationship between investment on the one hand and changes in the relative prices of inputs output demand and other determinants on the other hand however because of the lumpy nature and irreversibility of investments and the presence of uncertainty about future economic developments a specific percentage change in relative prices and output demand may not always lead to the same percentage change in capital stocks that means that different regimes may exist in investment behaviour we test whether such regimes exist using high quality data on eight manufacturing industries in the netherlands three different regimes can be identified that are characterized by differences in the relative input price levels and we find that if relative prices take on extreme values the propensity to adjust the scale of production to changes in demand is very low

can an emission trading scheme promote the withdrawal of outdated capacity in energy intensive sectors a case study on china s iron and steel industry abstract outdated capacity and substantial potential for energy conservation are the two main features of energy intensive sectors in developing countries such countries also seek to implement market based options to further control domestic carbon emissions as well as to promote the withdrawal of outdated capacity and upgrade production level this paper presents a quantitative assessment of the emission trading scheme ets for china s iron and steel industry the diverse array of normal and outdated capacities was modeled in a two country three good partial equilibrium model simulation results show that the abatement potential can be underestimated if the energy saving effects that result from emission abatement are not considered in the scenario analysis we demonstrated that the free allocation of allowances can cause a competitiveness distortion among domestic normal and outdated capacities given the government s intention to promote outdated capacity withdrawal and production level upgrading an output based allocation approach is strongly suggested for china s iron and steel sector

disaggregating energy use cap among china s provinces the 2015 paris climate change negotiations represents the most ambitious worldwide effort to date to combat climate change as the largest energy consumer and carbon emitter china pledges 60 65 cut in carbon intensity below 2005 levels by 2030 to accelerate china s climate efforts china has also committed to cap its primary energy use at 4 8 billion tons of coal equivalent in 2020 this paper proposes an equitable and efficient scheme to disaggregate this national goal among provinces a three step disaggregation procedure is proposed which takes into account the initial allocation national redistribution and inter provincial adjustment first this study allocates the incremental energy quota taking 2010 as the base year second part of the energy quota is set aside by the central government for redistribution purposes while an incremental energy quota index comprising equity and efficiency criteria is used for initial allocation among provinces finally historical efforts and inter provincial energy flows are considered for inter provincial adjustment this disaggregation scheme is flexible and can be easily extended to allocation and management of other resource and environmental targets the empirical findings can assist decision makers in identifying which provinces are likely to over consume the energy quota relative to the proposed allocation and which provinces are likely to perform better in energy conservation moreover the results show that the energy cap set for 2020 is unachievable without further action market based instruments such as an energy allowance trading market are strongly recommended to achieve the energy use target in an equitable and cost effective manner

the synthesis of bottom up and top down approaches to climate policy modeling electric power technologies and the cost of limiting us co2 emissions abstract in the us the bulk of co 2 abatement induced by carbon taxes comes from electric power this paper incorporates technology detail into the electricity sector of a computable general equilibrium model of the us economy to characterize electric power s technological margins of adjustment to carbon taxes and to elucidate their general equilibrium effects compared to the top down production function representation of the electricity sector the technology rich hybrid specification produces less abatement at a higher welfare cost suggesting that bottom up models do not necessarily generate lower costs of abatement than top down models this result is shown to be sensitive to the elasticity with which technologies generating capacities adjust to relative prices

intra firm diffusion of green energy technologies and the choice of policy instruments environmental benefits only unfold if green environmentally friendly technologies are widely diffused and intensively deployed within a firm we investigate how different types of policies directly and in combination affect the number of different green energy technologies adopted by a single firm intra firm diffusion using data from a dedicated survey on the diffusion of green energy technologies of 1200 swiss firms and applying well identified econometric models we found that energy taxes are a very effective policy instrument for the intra firm diffusion of green energy technologies even more important however are non political measures that show the largest effect among all tested instruments additional analyses show that a time consistency in policy making is more important for energy tax regimes than for regulations and b no evidence for complementarities between the policy types could be identified

the economic impact of china s indc distinguishing the roles of the renewable energy quota and the carbon market abstract this study contributes to the existing literature on economic impacts assessment of china s intended nationally determined contributions indc by 2030 a dynamic computable general equilibrium cge model of china that incorporates the technological details of the electricity sector is used in this study two main policy choices including the renewable quota and the carbon market are modeled to distinguish different pathways to indc targets results show several important findings first the total economic cost required to achieve china s indc targets ranges from 0 11 to 0 43 of gdp by 2030 second energy sectors such as the coal mining and electric power sectors are the most affected by china s indc in terms of both sectoral production and price this study further indicates that the implementation of a national carbon market is efficient in reducing the compliance costs of indc targets while the deployment of renewable power helps to create employment opportunities and reduce permit prices in the carbon market in addition the results of a cost benefit analysis suggest that the hidden health benefits of china s indc can offset approximately 42 1 162 3 of the compliance costs even based on the most conservative estimates

incentives for advanced pollution abatement technology at the industry level an evaluation of policy alternatives abstract in this research we evaluate the incentive effects of five environmental policy instruments to promote the development and adoption of advanced pollution abatement technology in a heterogenous industry from most to least incentive the policy instruments can be rank ordered as follows i auctioned permits ii emissions taxes and subsidies iii issued marketable permits iv performance standards including performance standards in this list necessitates the assumption that they are differentiated between heterogeneous firms before the technology adoption in a way which replicates the initial emissions control distribution of the efficient incentive based instruments with the starting point normalized in this fashion the instrument rankings are invariant with respect to the size of firms the size of the industry or the industry s abatement cost structure

assessment of china s climate commitment and non fossil energy plan towards 2020 using hybrid aim cge model china made a commitment in copenhagen to reduce its carbon dioxide emissions per unit of gdp from 40 to 45 compared with the 2005 level by 2020 and is determined to vigorously develop non fossil fuels this study analyzes the effects and impacts of policies that could help to achieve china s copenhagen commitments with a hybrid static cge model in which the electricity sector is disaggregated into 12 generation technologies four scenarios are developed including the reference scenario a the reference scenario b and two carbon constraint scenarios the results show that carbon intensity in terms of gdp will fall by 30 97 between 2005 and 2020 in the reference scenario a and will be reduced further by 7 97 if china s targeted non fossil energy development plans can be achieved in the reference scenario b however the rest of the 40 45 target must be realized by other measures such as carbon constraint it is also observed that due to carbon intensity constraints gdp loss would be from 0 032 to 0 24 compared to the reference scenario b and co2 emission reductions are due mainly to decreases in coal consumption in the electricity sector and manufacturing sector

a model of imperfect competition with keynesian features the recent literature on the reappraisal of keynes has viewed keynesian equilibria as arising when prices are fixed and effective demands and supplies are equilibrated through the adjustment of quantities one problem with this approach is that it lacks a theory of price determination in particular of why prices are fixed in the present paper we show that a number of keynesian features arise in a model in which prices are fully flexible but where agents have some monopoly power one advantage of this approach is that it provides a theory of the determination of both prices and quantities

optimal strategies for carbon reduction at dual levels in china based on a hybrid nonlinear grey prediction and quota allocation model abstract in this research a hybrid nonlinear grey prediction and quota allocation model hngp qam wasdeveloped for supporting optimal planning of china s carbon intensity reduction at both departmentaland provincial levels in 2020 at such dual levels hngp qam can not only help forecast carbon intensityand its uctuations over the concerned period but also facilitate the identi cation of china s carbonintensity reduction target in 2020 and the corresponding quotas for minimizing the total abatement cost two scenarios were developed based on multiple governmental policies and allocation schemes amongprovinces and departments the results showed that the total abatement cost would be 92 07 and98 93 10 9 as well as 180 57 and 194 19 10 9 rmb it is another shortname for china yuan for pro vincial and departmental allocation schemes under the reduction ratios of 40 and 45 respectively furthermore the west the east and the central china would be allocated the emission assignments thatwould be accounting for 48 53 28 26 and 23 21 of the total national emission reduction respectively the obtained results were particularly useful for multi level governments in providing information toidentify the carbon intensity reduction target conducting emission reduction assignments amongprovinces and departments as well as supporting relevant policy making the results also suggested thatthe developed hngp qam be applicable to similar engineering and planning problems 2014 elsevier ltd all rights reserved

can china afford to commit itself an emissions cap an economic and political analysis as the world s second largest carbon emitter china has long been criticised as a free rider enjoying benefits from other countries efforts to abate greenhouse gas emissions but not taking due responsibilities of its own china has been singled out as one of the major targets at the subsequent negotiations after the kyoto curtain had fallen by analysing the historical contributions of inter fuel switching energy conservation economic growth and population expansion to china s co2 emissions during the period 1980 1997 this article first demonstrates that the above criticism cannot hold its ground next we analyse what the economic effects would be if china s carbon emissions in 2010 were cut by 20 and 30 respectively relative to the baseline we found that china s gnp losses under the two less restrictive carbon limits are in the same range as the often reported estimates for industrialised countries under very restrictive carbon limits then the article envisions some efforts and commitments that could be expected from china until its per capita income catches up with the level of middle developed countries by emphasising the win win strategies these efforts and commitments could be unlikely to severely jeopardise china s economic development and at the same time would give the country more leverage at the post kyoto climate change negotiations finally the article is concluded with the argument that combating global climate change is in china s interest it will be beneficial to a more sustainable development of the chinese economy as well as to the global climate

china s regional co2 emissions characteristics inter regional transfer and emission reduction policies abstract this paper analyzes the characteristics of china s regional co 2 emissions and effects of economic growth and energy intensity using panel data from 1997 to 2009 the results show that there are remarkable regional disparities among eastern central and western areas regional elasticities of per capita gdp and energy intensity on co 2 emissions which reflect the regional differences in economic development economy structure and restraining function of energy intensity decrease on the emission energy intensity reducing is more effective to emission abatement for provinces with higher elasticity of energy intensity but may not be significant for provinces with lower elasticity the inverse distribution of energy production and consumption regional unfairness caused by institutional factors like energy price and tax system result in inter regional co 2 emission transfer embodied in the power transmission the calculation indicates that the embodied emission transfer was gradually significant after 2003 from eastern area to the central and western areas especially energy production provinces in central area which leads to distortion on the emission and emission intensity the regional emission reduction targets and supporting policies should be customized and consistent with the actual situations rather than setting the same target for all the provinces

sensitivity of modeling results to technological and regional details the case of italy s carbon mitigation policy model differences in technological and geographical scales are common but their contributions to uncertainties have not been systematically quantified in the climate policy literature this paper carries out a systematic assessment on the sensitivity of computable general equilibrium models to technological and geographical scales in evaluating the economic impacts of carbon mitigation policies in particular we examine the impacts of sub national details and technological details of power generation on the estimate of carbon price and economic cost taking italy as an example we find that the estimation for carbon price and the economic cost of a de carbonization pathway by means of a model with technological and regional details can be lower than a model without such details by up to 40 additionally the effect of representing regional details appears to be far more important than the effect of representing the details of electricity technology in both the estimated carbon prices and the estimated economic impacts our results for italy highlight the importance of modeling uncertainties of these two key assumptions which should be appropriately acknowledged when applying cge models for policy impact assessment our conclusions can be generalized to different countries and policy scenarios not in terms of absolute numbers but in terms of economic explanations in particular intra national trade and the sub national sectoral technological specialization are important variables for understanding the economic dynamics behind these outcomes

monopolistic equilibrium and involuntary unemployment abstract this note provides a simple example of an economy in which involuntary unemployment may be the consequence of monopolistic behavior on the product market

the cost of climate policy in the united states abstract we re evaluate prospects for us economic growth and the likely costs of advanced technologies given recent developments and then apply the mit emissions prediction and policy analysis eppa model to evaluate three core ghg policy scenarios for the us that cap emissions at different levels the three policy scenarios involve allowance allocations that through 2050 are 1 constant at present emissions levels 2 linearly reduced to 50 below present 3 linearly reduce emissions to 80 below present the cumulative allowance allocations over the horizon of the policy are 287 203 and 167 gt of co 2 equivalent respectively we compare the results to previous analysis of these same policy scenarios to evaluate how the changed growth and technology prospects affect the results we focus on 203 and 167 gt scenarios because current proposals envision deep cuts in emissions from present the 167 gt scenario is closest to proposals currently being considered by congress and supported by the us administration however we do not attempt to model specific details of actual proposals we test results to alternative assumptions about program coverage and banking behavior measured in terms of changes in economic welfare the economic cost of 203 and 167 gt cases is in the range of 2 to 3 by 2050 with co 2 prices between 48 and 67 in 2015 rising to between 190 and 266 by 2050 implementation details matter when an idealized economy wide cap and trade is replaced by coverage omitting some sectors or if the credibility of long term target is weak limiting banking behavior prices and welfare costs change substantially

e business usage across and within firms in the uk profitability externalities and policy using data from the third uk community innovation survey we model the usage of e business across and within firms in the uk in the year 2000 as a single observation upon an integrated process of inter and intra firm diffusion the intra firm dimension is a significant extension to standard analysis the model estimates indicate that the pattern of e business usage reflects the heterogeneity of firms in terms of size other innovative activity and labour force skills generating differences in the payoffs to use as well as market and non market intermediated externalities the policy implications of the findings are discussed c 2008 elsevier b v all rights reserved

the role of globalization on the recent evolution of energy demand in india implications for sustainable development using annual data for the period 1971 2012 this study explores the relationship between globalization and energy consumption for india by endogenizing economic growth financial development and urbanization the cointegration test proposed by bayer hanck 2013 is applied to estimate the long run and short run relationships among the variables after confirming the existence of cointegration the overall results from the estimation of an ardl energy demand function reveal that in the long run the acceleration of globalization measured in three dimensions economic social and overall globalization leads to a decline in energy demand in india furthermore while financial development is negatively related to energy consumption economic growth and urbanization are the key factors leading to increased energy demand in the long run these results have policy implications for the sustainable development of india in particular globalization and financial development provide a win win situation for india to increase its economic growth in the long run and become more environmentally sustainable

quantifying regional economic impacts of co2 intensity targets in china we acknowledge the support of the ministry of science and technology of china through the institute for energy environment and economy at tsinghua university and the support from graduate school of tsinghua university which is supporting zhang da s doctoral research as a 22 visiting scholar at the massachusetts institute of technology we are also grateful for the support provided by rio tinto china and social science key research program from national social science foundation china of grant no 09 zd029 we further acknowledge the support of eni s p a icf international and shell founding sponsors of the china energy and climate project for supporting this model development work we would further like to thank dr john reilly dr sergey paltsev dr kyung min nam dr henry chen paul kishimoto and tianyu qi at joint program on the science and policy of global change and participants in the annual meeting of china energy and climate project and ecomod 2012 conference for helpful comments and discussion 23

there may be unemployment when the labour market is competitive and the output market is not is unemployment always caused by union power or more generally downwards rigidity of wages the influential article by hart i 982 says yes there cannot be unemployment unless labour unions prevent wages from falling the more recent papers by d aspremont et al i 984 i989 a b and by dehez i 985 say no unemployment may occur when the labour market is perfectly competitive and the output market is not all this work assumes a fixed labour supply but the more recent models significantly depart from hart s formulation in other respects 2 one may ask which answer is the robust one this paper shows that hart s answer is based on a facilitating assumption on marginal revenue i replace it by a more realistic hypothesis and replicate hart s existence and comparative statics results except that now unemployment may occur when the labour market is perfectly competitive and the output market is not more precisely there can be unemployment at any nonnegative wage and perfect competition in the labour market may generate zero wages and unemployment labour becoming a free good in excess supply a useful costless resource is then wasted away and thus a gross form of inefficiency occurs in hart i982 on the contrary perfect competition in the labour market necessarily yields full employment and pareto efficiency labour does not often become a free good in excess supply in modern industrial economies but this possibility may help explain why labour markets have become noncompetitive wages are positive at an overall walrasian equilibrium but imagine that the output markets become oligopolistic and as a result the perfectly competitive wage drops to zero workers are now severely exploited in the sense of joan robinson i933 ch 25 and pigou i920 because the real wage is lower than the physical marginal product of labour unionisation can then be seen as providing countervailing power in