excise taxes with multiproduct transactions i examine excise taxes levied on multiproduct retailers excise taxes reduce equilibrium output and decrease equilibrium product variety in the short run but taxes can raise output per product in the long run and induce entry excise taxes are overshifted into prices in a wide range of cases including under linear and concave demand conditions and excise taxes shift less than one for one into prices only when demand is highly convex multiproduct transactions substantively alter the efficiency of ad valorem and specific forms of excise taxes and affect the comparison of relative tax performance over short run and long run time horizons jel h25 h32 l11 l13 l81

market performance with multiproduct firms we revisit the fundamental issue of market provision of variety associated with chamberlin spence and dixit stiglitz when firms sell multiple products both products and firms are horizontally differentiated we propose a general nested demand framework where consumers first decide upon a firm then which variant to buy and how much the nested ces is a special case we use it to determine the market s biases when firms compete in product ranges and prices the market system attracts too many firms with too few products per firm firms restrain product ranges to relax price competition but this exacerbates over entry

a representative consumer theorem for discrete choice models in networked markets we provide an alternative way to model sequential decision processes which is consistent with the random utility maximization hypothesis and the existence of a representative agent our result is stated on terms of a direct utility representation and it does not depend on parametric assumptions

china s carbon emissions trading overview challenges and future because china has emerged as the largest greenhouse gas ghg emitter in total annual emissions to accelerate the pace of ghg emission reduction in china is important to the success of global efforts in addressing climate change carbon trading is a market mechanism and key instrument in the mitigation of climate change this paper explores the policy process and development state to date of china s carbon trade market to understand the emergence and development of that market and to understand what barriers are hampering china s carbon trade market development to achieve this goal this paper introduces and analyzes china s status in the international market examines the factors driving carbon market launching by the chinese government and traces the development of mandatory carbon emission trading and voluntary emission trading it is argued that china s carbon trading market is confronted with challenges such as the absence of a functional carbon trading market inaccuracy of the quota allocation an imperfect trading mechanism and lagging legislation at the present stage shortcomings such as having no real time carbon price and dominated spot transactions differentiate china s trade market substantially from a functional system a quick market integration of china s carbon market appears remote it is suggested that specific measures be taken to promote the development of the chinese carbon trading market

cyclical fluctuation patterns and decoupling towards common eu 28 environmental performance abstract the eu 28 is one of the largest emitters of co2 in the world and the most committed to reducing emissions however the national environmental strategies of the member states are still diverse this study is aimed at evaluating the environmental performance of european economies by analysing the fluctuations of co2 emissions and their links with economic activity over the period 1950 2012 the methodological framework is based on a dynamic factor analysis to determine an index of the eu fluctuation of co2 emissions in parametric form this index can be used to monitor the progress towards common behaviour across member states with a time varying recursive method following this approach we also track the efforts made to decouple co2 emissions from gdp based on these analyses we develop a co2 emissions gdp linkage matrix to attain useful information on the eu member state environmental performance

carbon inequality at the sub national scale a case study of provincial level inequality in co2 emissions in china 1997 2007 abstract this study asks whether sub national inequalities in carbon dioxide co2 emissions mirror international patterns in carbon inequality using the case study of china several studies have examined global level carbon inequality however such approaches have not been used on a sub national scale this study examines inter provincial inequality in co2 emissions within china using common measures of inequality coefficient of variation gini index theil index to analyze provincial level data derived from the ipcc reference approach for the years 1997 2007 it decomposes co2 emissions inequality into its inter regional and intra regional components patterns of per capita co2 emissions inequality in china appear superficially similar to though slightly lower than per capita income inequality however decomposing these inequalities reveals different patterns while inter provincial income inequality is highly regional in character inter provincial co2 emissions inequality is primarily intra regional while apparently similar global patterns in co2 emissions are not mirrored at the sub national scale

co2 embodiment in china australia trade the drivers and implications abstract this study focuses on co 2 emissions embodied in the characteristic china australia bilateral trade which refer to the co 2 emissions due to the production of goods traded between the two countries we perform an assessment of the co 2 embodiment in the trade during the period between 2002 and 2010 we find that the scale effect has been a dominant effect contributing to an increase of co 2 emissions embodied in the bilateral trade through the years while the composition effect seems to be a major driver for reducing co 2 embodiment in the exports of australia to china based on an analysis of the difference between the amounts of actual co 2 embodiment and those in a hypothetical no trade scenario we estimate that the net co 2 emissions due to the bilateral trade declined from around 10 mt of co 2 emissions in 2002 to 10 mt in 2010 that is the bilateral trade contributed to a reduction of the global carbon emissions in the recent years this finding suggests that the rapid growth of exports of carbon intensive goods from australia to china has helped in reducing carbon emissions globally because carbon intensity factors of those goods are much lower in australia than those in china

estimating markups and market conduct with multidimensional product attributes we demonstrate how to estimate a model of oligopoly pricing when products are multi dimensionally differentiated we provide an empirical counterpart to recent theoretical work on product differentiation using specifications informed by economic theory we estimate price cost margins for products differentiated in many dimensions

decoupling economic growth from carbon dioxide emissions in china a sectoral factor decomposition analysis china is facing the dilemma of how to coordinate economic development and carbon dioxide co2 emissions reduction this paper investigates the decoupling effect of economic growth from co2 emissions in china during the period 1992 2012 using the logarithmic mean divisia index lmdi method we decompose the driving forces of the decoupling of economic growth from co2 emissions in china s five major economic sectors into several factors and measure the contribution of each factor to the decoupling of china s overall economy from co2 emissions the results show that china performed the weak decoupling of economic growth from co2 emissions during 1992 2012 and so did all its five major sectors such a state did not occur smoothly and presented five different stages energy intensity and economic activity level were the most important factors affecting the decoupling in china energy intensity decreased in all sectors indicating a large acceleration for the sectoral decoupling states this finding is applicable to process carbon intensity in industrial sector and energy emission factor in agricultural industrial construction and service sectors in terms of sectoral effects on the decoupling in china industrial sector played a dominant role while construction sector had the most marginal influence the economic activity level and economic share of industrial sector exerted the most negative effects on the decoupling the energy intensity of industrial sector played a key role in promoting the national decoupling state while the energy emission factor of agricultural sector contributed the least

energy investment risk assessment for nations along china s belt road initiative abstract overseas energy investment as an effective way of securing energy supply is being favored by the world s leading energy consuming countries however energy investment has the potential high risk on multiple forms including political and regulatory risk currency liquidity and refinancing risk as well as resource risk and so on to effectively evaluate overseas energy investment risk this study proposed a new indicator system from six dimensions furthermore a fuzzy integrated evaluation model based on the entropy weight was constructed to rate the energy investment risk for 50 nations along china s belt road initiative the findings indicate that resource potential and chinese factors have become the main determinant of energy investment risk while environmental constraints and political risk should also be considered for investing decisions in conclusion saudi arabia united arab emirates pakistan kazakhstan and russia are the most ideal choices for china s energy investment balancing resource potential and investment environment

decoupling between human development and energy consumption within footprint accounts abstract historically the growth of energy consumption has fuelled human development but this approach is no longer socially and environmentally sustainable recent analyses suggest that some individual countries have responded to this issue successfully by decoupling total primary energy supply from human development increase however globalisation and international trade have allowed high income countries to outsource industrial production to lower income countries thereby increasingly relying on foreign energy use to satisfy their own consumption of goods and services accounting for the import of embodied energy in goods and services this study proposes an alternative estimation of the decoupling index based on the total primary energy footprint rather than total primary energy supply an analysis of 126 countries over the years 2000 2014 demonstrates that previous studies based on energy supply highly overestimated decoupling footprint based results on the other hand show an overall decrease of the decoupling index for most countries 93 out of 126 there is a reduction of the number of both absolutely decoupled countries from 40 to 27 and relatively decoupled countries from 29 to 17 and an increase of coupled countries from 55 to 80 furthermore the study shows that decoupling is not a phenomenon characterising only high income countries due to improvements in energy efficiency but is also occurring in countries with low human development index and low energy consumption finally six exemplary countries have been identified which were able to maintain a continuous decoupling trend from these exemplary countries lessons have been identified in order to boost the necessary global decoupling of energy consumption and achieved welfare

decoupling co2 emissions and industrial growth in china over 1993 2013 the role of investment abstract since industrial sector is a leading energy consumer and co 2 emitter in china the degree of the decoupling of co 2 emissions and industrial growth plays a critical role in realizing the energy conservation and emission reduction goals of china this is the first study to present a specific investigation on the decoupling of co 2 emissions and industrial growth in china from 1993 to 2013 using an extended logarithmic mean divisia index lmdi model focusing on both energy related and process related co 2 emissions and introducing three novel investment factors i e investment scale investment share and investment efficiency we highlight and explore the remarkable role of investment in the mitigation and decoupling of co 2 emissions with industrial growth the results show that china s industrial sector experienced the weak decoupling during 1993 2013 the investment scale is the most important factor responsible for the increase in co 2 emissions and the inhibition of the decoupling the investment efficiency effect has a volatile trend and overall it plays the most significant role in reducing co 2 emissions followed by the energy intensity effect and process carbon intensity effect whereas the energy mix carbon coefficient and investment share have marginal effects among 36 industrial sub sectors the seven factors of rcmcp raw chemical materials and chemical products nmp nonmetal mineral products and spfm smelting and pressing of ferrous metals have significant effects on the decoupling thus the three sub sectors should be among the top concerns for abating co 2 emissions finally we provide policy recommendations considering both conventional and investment factors for china s industrial sector to realize emission reduction targets

index decomposition analysis applied to co2 emission studies index decomposition analysis ida was first extended from energy consumption to energy related co2 emission studies in 1991 since then many studies have been reported covering various countries and emission sectors however unlike the case of energy consumption studies a comprehensive literature survey that focuses specifically on emission studies has so far not been reported in this paper we attempt to fill this gap by reviewing 80 papers appearing in peer reviewed journals from 1991 to 2012 in this application area the first part of this paper deals with the developments with regard to the ida approaches used by researchers and the scope and focus of their studies in the second part the empirical results reported in the surveyed studies are analyzed consolidated and presented by emission sector the objective is to reveal the relative contributions of key effects on changes in the aggregate carbon intensity and this is done by emission sector and by country the findings of both parts are useful in understanding the development of ida in the application area of emission study as well as the key drivers of aggregate carbon intensities in the past and their possible future developments

product diversity in asymmetric oligopoly is the quality of consumer goods too low we analyse an oligopoly model incorporating horizontal differentiation and quality differences high quality goods are overpriced and underproduced when the market is fairly well covered low quality products may be profitable when their net social contribution is negative implying excessive entry in a relatively uncovered market even low quality goods are underproduced and there may be underentry when fixed costs are independent of quality the market tends to select the right firms otherwise the market may produce low quality products when it should produce high quality ones the model is calibrated using market data for yoghurt

is china s economic growth decoupled from carbon emissions abstract a comprehensive understanding of the interdependence between china s economy and carbon emissions can better serve china s transition towards a low carbon economy and can also provide reference for other developing countries the purpose of this paper was to investigate the dependence of china s economy on co2 emissions i the tapio decoupling model was applied to quantify the decoupling elasticity between china s economy and co2 emissions ii the structure decomposition technique was utilized to quantity the contribution of china s economic structure to the decoupling elasticity iii the combined decomposition model which combined cobb douglas c d production function with logarithmic mean divisia index lmdi technique and was solved the residual problem was employed to identify more driving factors labor input investment carbon coefficient energy structure energy intensity economic structure and technology state affecting the decoupling elasticity the main results were as follows i the decoupling elasticity showed a downward trend during the whole period and the decoupling state was characterized by two types expansive negative decoupling 2002 2005 and weak decoupling 2000 2002 and 2005 2014 ii the industry sector played the most negative effect on the decoupling process expect 2013 2014 from the cumulative effect the contribution of six sectors to promote decoupling effect was ranked as follows construction agriculture trade other transport industry iii the most critical factor driving the increased co2 emissions was the investment effect accounting for 145 34 of the cumulative total co2 emissions while the energy intensity effect contributed to a cumulative reduction in co2 emissions of 1443 72 mt finally some policy recommendations were offered to achieve the decoupling of china s economic growth and carbon emissions

decomposition of aggregate carbon intensity for the manufacturing sector comparison of declining trends from 10 oecd countries for the period 1971 1991 abstract as with total energy consumption or aggregate energy intensity changes in aggregate carbon intensity may also be decomposed or attributed to changes in various components including fuel mix for electricity generation final energy mix sub sectoral economic activity and sub sectoral energy intensities the adaptive weighted divisia rolling base year index specification is applied to total carbon emissions from the manufacturing sector of 10 oecd countries for the period 1971 1991 declines in aggregate carbon intensity for these countries range from 70 and may be primarily attributed to decreases in energy intensity i e increases in the average factor productivity of energy however these declines in aggregate carbon intensity appear to have a complex linkage to increases in energy prices as well as changes in other determinants of gross industrial output

exploring the influencing factors and decoupling state of residential energy consumption in shandong abstract this paper aims at analyzing the current situation of residential energy consumption in shandong identifying the influence factors governing energy consumption based on the lmdi log mean divisia index method and describing the decoupling relationship between residential energy consumption and residential income based on the tapio decoupling method the main results are as follows 1 the residential energy consumption structures of urban and rural have become multilevel furthermore the gap in per capital residential energy consumption between urban and rural regions narrowed 2 the energy intensity had an obvious inhibitory effect on decreasing urban residential energy consumption per capital income and population structure increased the urban residential energy consumption over the study period however per capital income and energy intensity played a more significant role in promoting rural residential energy consumption and the population structure decreased rural residential energy consumption during the study period the contributions from both energy consumption structure and total population effect were negligible 3 since 2000 the decoupling index for both urban and rural resident gradually declined which also shows that residential energy consumption in urban and rural regions was gradually less depend on residential income

long term changes in co2 emissions in austria and czechoslovakia identifying the drivers of environmental pressures this study presents fossil fuel related co2 emissions in austria and czechoslovakia current czech republic and slovakia for 1830 2000 the drivers of co2 emissions are discussed by investigating the variables of the standard kaya identity for 1920 2000 and conducting a comparative index decomposition analysis proxy data on industrial production and household consumption are analysed to understand the role of the economic structure co2 emissions increased in both countries in the long run czechoslovakia was a stronger emitter of co2 throughout the time period but per capita emissions significantly differed only after world war i when czechoslovakia and austria became independent the difference in co2 emissions increased until the mid 1980s the period of communism in czechoslovakia explained by the energy intensity and the composition effects and higher industrial production in czechoslovakia counterbalancing factors were the income effect and household consumption after the velvet revolution in 1990 czechoslovak co2 emissions decreased and the energy composition effect and industrial production lost importance despite their different political and economic development austria and czechoslovakia reached similar levels of per capita co2 emissions in the late 20th century neither austrian eco efficiency nor czechoslovak restructuring have been effective in reducing co2 emissions to a sustainable level

manufacturing energy use in oecd countries decomposition of long term trends abstract in this paper we examine manufacturing energy use in 13 oecd countries over the period 1971 1995 we describe changes in aggregate energy intensity using the adaptive weighting divisia decomposition method we contrast the development in the periods after the oil price shocks of 1973 and 1979 with the period of relatively stable energy prices after the oil price crash of 1986 the results show that manufacturing output grew in most countries pushing up energy use the share of electricity increased in almost every sector while there was a clear trend away from oil and coal towards natural gas changes in the structure of output drove up energy use between 1973 and 1994 in some countries and down in others changes in energy intensities had a profound and downward effect on manufacturing energy use in all countries however contrasting the period after oil prices fell in 1986 with earlier years we see that for most countries the rate of energy intensity decline slowed slightly but did not reverse with falling prices in a few countries efficiency improvements continued to have a strong effect this suggests that even without higher prices improvements of energy efficiency seems to take place

can china achieve its carbon intensity target by 2020 while sustaining economic growth in 2009 the chinese government announced its carbon intensity target for 2020 can china achieve this carbon intensity while sustaining economic growth to address this essential issue the contributions of this study lie in three aspects first we quantitatively capture the relationship between china s economic growth and energy consumption using the cointegration theory and predict china s energy consumption by 2020 according to different economic growth targets second we forecast china s energy structure in 2020 using compositional data and arima models under different scenarios third we deduce china s co2 emission and carbon intensity in 2020 furthermore we investigate whether or not china can realize the carbon intensity target in premise of ensuring economic growth and evaluate the contribution of the energy structure s adjustment to meeting this target finally we put forward some relevant policy implications for achieving china s carbon intensity target

optimal policy and network effects for the deployment of zero emission vehicles abstract we analyze the impact of indirect network effects in the deployment of zero emission vehicles in a static partial equilibrium model in most theoretical analyses direct and indirect effects are conflated and relatively few authors have explicitly considered indirect network effects we also introduce the market power of vehicle producers and scale effects in the production function the model exhibits a multiplicity of local social critical points and market equilibria suggesting a possibility of lock in the optimal two subsidies for vehicles and stations are derived so that the pareto dominating market equilibrium would coincide with the social optimum configurations associated with different values of the parameters are explored to revisit the policy issues at various stages of deployment of hydrogen and battery electric vehicles

comparing structural decomposition analysis and index to analyze and understand historical changes in economic environmental employment or other socio economic indicators it is useful to assess the driving forces or determinants that underlie these changes two techniques for decomposing indicator changes at the sector level are structural decomposition analysis sda and index decomposition analysis ida for example sda and ida have been used to analyze changes in indicators such as energy use co2 emissions labor demand and value added the changes in these variables are decomposed into determinants such as technological demand and structural effects sda uses information from input output tables while ida uses aggregate data at the sector level the two methods have developed quite independently which has resulted in each method being characterized by specific unique techniques and approaches this paper has three aims first the similarities and differences between the two approaches are summarized second the possibility of transferring specific techniques and indices is explored finally a numerical example is used to illustrate differences between the two approaches

decomposing the change of co2 emissions a joint production theoretical approach this paper presents an alternative decomposition method to explore the driving forces of change in carbon emissions by using distance functions estimated by data envelopment analysis the proposed approach can isolate the effects of changes in gdp composition and energy supply composition on the change of carbon emissions in addition it is capable of identifying the effects of changes in different input ratios which may be very important if there are substitution effects among different inputs moreover the proposed model can measure the effects of changes in good and bad output technical efficiencies consequently this decomposition technique allows a change of carbon emissions to be decomposed into contributions from ten factors which provides more insights for policy makers we apply this model to decompose carbon emissions in 25 oecd counties and china for the sample countries as a whole the empirical results indicate that the economic growth is the crucial driver to carbon emissions increase while the changes in gdp composition and capital energy ratio are two main drivers to carbon emissions reduction in particular we discuss in detail the driving forces of china s carbon emissions change in order to propose some valuable policy implications for china from an international perspective

decoupling sectoral economic output from carbon emissions on city level a comparative study of beijing and shanghai china abstract cities do play significant roles in tackling global environmental changes decoupling economic growth from environmental pressures is critical for global sustainable development however few studies pay attention to the decoupling analysis at city level this paper conducts a comparative study of the decoupling performance of economic output from co2 emissions between beijing and shanghai the top two cities in china in this paper the decoupling trends and the decoupling effects are explored from a sectoral perspective by combining the tapio decoupling elasticity and the logarithmic mean divisia index lmdi model the results show that beijing and shanghai both experienced weak decoupling in construction expansive negative decoupling in transport expansive coupling in trade and weak decoupling in others over the period 2000 2015 moreover agriculture appeared strong decoupling in beijing and recessive decoupling in shanghai industry showed strong decoupling in beijing and weak decoupling in shanghai the decoupling effects showed different magnitudes and patterns in industrial sectors between beijing and shanghai overall per capita gdp and population growth inhibited the decoupling while energy intensity industrial share energy mix accelerated the decoupling process

common trends and drivers of co2 emissions and employment a decomposition analysis in the industrial sector of selected european union countries the countries of the european union face the challenge of reversing the declining role of industry and achieving their targets for sustainable development combining industrial growth with fewer environmental repercussions and more jobs this paper uses a decomposition analysis in order to quantify the effect of the driving factors on two indicators of sustainable industrial development co2 emissions and employment in five european union countries during 2000 2011 the decomposition method applied is the log mean divisia index i and the models developed comprise some common or closely related driving factors the parallel investigation of the factors affecting the two indicators offers useful insights into relevant complementary and or antithetical effects the timeframe of the study is divided into two time periods before and after the start of the economic crisis 2000 2007 and 2007 2011 respectively this time division enables the evaluation of the impacts of the economic crisis directly on the drivers and indirectly on the two indicators it was deduced that in both time periods the two main drivers of industrial co2 emissions and employment were economic growth and resource intensity which counterbalance each other structural changes appeared to have a rather marginal effect even if the general tendency was the expansion of less energy labour intensive sectors finally changes in the fuel mix used in industry were beneficial to emissions reduction in all the examined countries especially in the second time period the results obtained show that the examined eu countries have not found a solid path towards sustainable and inclusive industrial development yet the stronger economies seem to move faster to this direction though

free entry and social inefficiency our goal is to provide a simple yet general exposition of the conditions under which the number of entrants in a free entry equilibrium is excessive insufficient or optimal our analysis compares the number of firms that enter a market when there is free entry with the number that would be desired by a social planner who is unable to control the behavior of firms once they are in the market that is we consider the second best problem of choosing the welfare maximizing number of firms while we take as given their noncompetitive behavior after entry we demonstrate that the crucial conditions for establishing the presence of an entry bias can be stated quite simply in terms of the outcome of the postentry game played by entrants in contrast to previous work we do not need to model this postentry game explicitly

product and price competition in a two dimensional vertical differentiation model in this paper the one dimensional vertical differentiation model shaked and sutton shaked a j sutton 1982 relaxing price competition through product differentiation rev econom stud 49 3 13 moorthy moorthy k s 1988 product and price competition in a duopoly marketing sci 7spring 141 168 is extended to two dimensions and an analysis of product and price competition is presented a two stage game theoretic analysis in which two firms compete first on product positions and then on price is conducted closed form equilibrium solutions are obtained for each stage in which competitors are unrestricted in their choices of price or product positions a significant finding of this research is that unlike the one dimensional vertical differentiation model firms do not tend towards maximum differentiation although this solution is possible under certain conditions when the range of positioning options on each of the dimensions is equal maxmin product differentiation occurs that is in equilibrium the two firms tend to choose positions which will represent maximum differentiation on one dimension and minimum differentiation on the other dimension

variety pass through an examination of the ready to eat breakfast cereal market abstract we examine variety pass through effects that occur when multiproduct retailers adjust the length of their product lines in response to changes in wholesale prices studying variety pass through is essential to understanding how wholesale price changes transmit into retail prices when variety is endogenous using data from the ready to eat breakfast cereal category we find that retailers jointly adjust retail prices and the length of their product lines in response to changes in wholesale prices we show the importance of controlling for the endogeneity of retailers product line decisions when calculating price pass through rates

swedish co2 emissions 1993 2006 an application of decomposition analysis and some methodological insights this study undertakes a decomposition analysis to identify the drivers of carbon dioxide emissions change in the swedish business and industry sectors 1993 2006 on aggregate energy intensity decreased but this does not seem to have been very important for reducing emissions rather fuel substitution seems to have been more important which is in line with findings from the decomposition literature on sweden however at the sectoral level we find no clear pattern of the effect of fuel substitution and energy intensity on emissions we also draw some methodological conclusions decomposition analysis should be undertaken at the most disaggregate level possible assessing decomposition results by summing results over several time periods leads to biased results and decomposition analysis should not be based only on some initial and final years of a long time period furthermore we address the problem of double counting energy flows in decomposition analysis of aggregate effects when the energy sector is included and point out potential problems related to output measured in monetary terms

modeling of industrial energy consumption an introduction and context industrial energy accounts for roughly one third of total global energy consumption and is expected to continue to use a similar share in the foreseeable future however this is one of the hardest end uses to analyze model and forecast the reasons for modeling industrial energy consumption are as varied as the ways in which energy is used in production processes this has led to the application of a broad set of emperical tools from several different disciplines in this article we provide an introduction and context for a compendium or survey of the methods used in this area this special issue of energy economics is designed to provide both newcomers and accomplished researchers with an overview of the current state of development in the are of industrial energy modeling

flexible mixture distribution modeling of dichotomous choice contingent valuation with heterogenity abstract this paper considers the performance of a model of mixture normal distributions for dichotomous choice contingent valuation data which allows the researcher to consider unobserved heterogeneity across the sample the model is flexible and approaches a semi parametric model since the normality assumption can be removed by augmenting the number of mixture distributions bayesian inference allows for simple estimation of the model and is particularly appropriate for conducting inference with finite data sets the proposed model is compared with other semi parametric and parametric approaches using monte carlo simulation under alternative assumptions regarding heteroskedasticity and heterogeneity in sample observations it is found that the mixture normal model reduces bias and improves performance with respect to an alternative semi parametric model particularly when the sample is characterized by heterogeneous preferences the application of the model to empirical data on the recreational value of natural areas in the canary islands confirmed the expected results

competition and collusion in the american automobile industry the 1955 price war movements in total quantity and in quality adjusted price suggest a supply side shock in the american automobile market in 1955 this paper tests the hypothesis that the shock was a transitory change in industry conduct a price war the key ingredients of the test are alternative equilibrium models of oligopoly under product differentiation in nonnested cox tests of hypotheses a collusive solution is sustained in 1954 and in 1956 while a competitive solution holds in 1955 the result does not appear to be an artifact since it is robust in tests against alternative specifications copyright 1987 by blackwell publishing ltd

decomposition of ireland s carbon emissions from 1990 to 2010 an extended kaya identity in recent decades ireland has been an important example of a development pathway where rapid economic growth was accompanied by rising energy demand and increasing carbon emissions understanding the driving forces of carbon emissions is necessary for policy formulation and decomposition analysis is widely used for this purpose this study uses an extended kaya identity as the scheme and applies the log mean divisia index lmdi i as the decomposition technique change in carbon emissions is decomposed from 1990 to 2010 and includes a measure of the effect of renewable energy penetration results illustrate that scale effects of affluence and population growth act to increase emissions and are countered primarily by energy intensity and fossil fuel substitution renewable energy penetration has a minor effect but has been increasing in recent years policy will need to significantly reduce intensity and increase renewables if applicable targets are to be reached this requires not only a comprehensive suite of policies and measures but emphasis on the development path and non technical change for optimal outcomes

decomposing the decoupling of co2 emissions and economic growth in brazil abstract this paper examines the occurrence of a decoupling between the growth rates in economic activity and co 2 emissions from energy consumption in brazil from 2004 to 2009 this decoupling was highlighted when economic activity and co 2 emissions moved in opposite directions in 2009 more generally we observe several periods of relative decoupling in brazil but not to the extent witnessed in 2009 to identify the determinants of emissions change we develop a decomposition model based on a log mean divisia index lmdi framework the results indicate that the carbon intensity and energy mix are the main determinant of emissions reduction in brazil between 2004 and 2009 modifications in the economy structure are also associated to emission mitigation in the period such evidence demonstrates similarities with events of decoupling registered for the interval 1980 1994 in brazil finds from brazil differ from observations in other countries in which improvement in energy intensity has been the most common determinant of emissions reduction

does urbanization drive economic growth decoupled from energy consumption in china s logistics abstract logistics has gradually become a major energy consumer in china along with urbanization and e commerce a better understanding of economic growth decoupled from energy consumption in logistics could relieve the pressure of energy supply and environmental pollution a combined model based on the tapio decoupling model kaya identity and log mean divisia index was proposed to decompose the impact of urbanization into 4 related factors comparative analysis was applied to investigate the similarities of and differences in the urbanization related factors affecting the decoupling state of provinces the main results were as follows 1 weak decoupling was the dominant state of logistics in china during 2007 2016 there were weak decoupling and strong decoupling in most of the observation period in the eastern region while there was no strong decoupling in the central and western regions 2 from the national perspective urbanization related factors had very significant but different impacts population quantity spatial structure and spatial expansion were the key inhibitors while population density was the main contributor 3 from the regional perspective the patterns of urbanization related factors in the three regions were similar population density had a positive but decreasing effect on decoupling in the three regions especially the western region population quantity had an increasing negative effect on decoupling in the three regions especially the central and western regions spatial expansion had an increasing negative effect on decoupling in the eastern and western regions but a decreasing negative effect in the central region and spatial structure had a stable negative effect on the three regions finally some policy implications were proposed

study on decoupling analysis between energy consumption and economic growth in liaoning province abstract since 1978 liaoning province has experienced spectacular economic growth which has led to more energy consumption the purpose of this paper is to explore the decoupling status between energy consumption and economic growth in liaoning province firstly the generalized lmdi method is used to explore the driving forces governing production energy consumption in liaoning province then the combination of tapio decoupling indicator and generalized lmdi method is utilized to study what the decoupling status occurred in liaoning province and why the decoupling status appeared during the study period only four decoupling status occurred expansive negative decoupling expansive coupling weak decoupling and strong decoupling the energy intensity decoupling effect played a positive role in the appearance of decoupling however the economic structure decoupling effect and investment decoupling effect played a negative role in the appearance of decoupling over the study period the energy structure decoupling effect and labour decoupling effect played a relative small role in the appearance of decoupling

decoupling economic growth from carbon emissions growth in the united states the role of research and development abstract the united states has achieved economic growth compatible with carbon reduction since 2007 this work is addressed to understand the eight effects especially effects related to research development rd whereas economic scale was the primary inhibitor to the drop of carbon emission followed by investment intensity population size and sectoral energy structure the results of decoupling efforts analysis uncover that energy intensity r d intensity r d efficiency and sectoral carbon intensity contributed to decoupling economic growth from carbon emission whereas investment intensity population size and sectoral energy structure did not contribute to the decoupling finally some policy implications are proposed

the environmental kuznets curve ekc theory part b critical issues according to the environmental kuznets curve ekc theory the process of economic growth is expected to limit the environmental degradation created in the early stages of development the first article of this study reviews the empirical studies examining various factors other than income that may lead to an ekc pattern the current article reviews in the first part the major critiques on the ekc speculation which relate to the following issues the normal distribution of world income the feedback from environmental degradation to economic growth the characteristics of the pollutant in question various econometric issues the evolution of consumption when income rises and the assumption about a common developmental pattern in all countries the second part discusses additional matters reported indirectly in the literature and or must be further examined there are doubts whether the gdp series captures the transition of production to the three productive sectors in empirical estimations and whether services are less polluting compared to industry activities finally the original kuznets theory which laid the groundwork for the ekc concept does not seem to solve income inequality problems

energy conservation and co2 emission reduction in china s 11th five year plan a performance evaluation in the 11th five year plan fyp 2005 2010 the chinese government initiated a series of energy saving and emission reduction policies in many key fields in response to environmental pollution and climate change this paper quantitatively evaluates the performance of energy conservation and co2 emission reduction in this period the impact of these policies and potentials by integrating the contributions of energy conversion efficiency and energy utilization efficiency improvement industrial restructuring fuel mix shift and renewable energy development in a unified framework as a first attempt to introduce energy conversion efficiency improvement into a decomposition approach comprehensive and specific policies are summarized as a policy list to be investigated the results show that energy intensity and conversion efficiency effects were mainly responsible for driving down energy consumption by 637 4 mtce and 85 4 mtce respectively and they reduced co2 emissions by 1345 3 mt and 243 8 mt respectively due to a significant improvement in the 11th fyp period most of the contributions made by the conversion efficiency effect 94 come from thermal power generation and the emission coefficient effect reduced co2 emissions by 17 4 mt through developing renewable energy economic growth is still the biggest driver of energy consumption and increasing emissions while industrial restructuring and fuel mix shift effects contributed relatively little developing renewable energy and promoting economic restructuring to limit the increase of energy intensive sectors are still the main challenges and the next policy focus to achieve the targets for energy saving and carbon emission reduction in the 12th five year plan

decomposing inequality in energy related co2 emissions by source and source increment the roles of production and residential consumption abstract using provincial data on energy related co2 emissions in china from 1997 to 2014 and the co2 emission gini coefficient ceg this study evaluates china s spatial inequality in energy related co2 emissions further we decompose this inequality and its variation from the perspectives of production and residential energy consumption using the source decomposition and source increment decomposition methods this paper presents a new ceg source increment decomposition method that can achieve complete decomposition the results reveal a downward trend in china s overall production sector and residential sector co2 emissions inequality although the gini coefficient of co2 emissions from the residential sector is larger than that from the production sector the contribution of the latter to the overall ceg is higher the impacts of the spatial inequality of co2 emissions from china s production and residential sectors depend on the type of energy the concentration effect is the primary factor responsible for inducing changes in china s overall and production sector co2 emissions inequality but it is not the only dominant factor for the residential sector co2 emissions inequality

a comparative study on decoupling relationship and influence factors between china s regional economic development and industrial energy related carbon emissions abstract to study the relationship between china s regional economic development and industrial carbon emission reveal the major influencing factors and mechanism of carbon emission change in all regions and provide theoretical evidence for governments to formulate emission reduction strategies and policies big data analysis and the tapio extended model were adopted to quantitatively analyse the decoupling relationship between carbon emission and economic growth in eight major regions of china between 1996 and 2012 logarithmic mean divisia index lmdi was also applied to decompose the main factors affecting carbon emission change in all regions the results show that 1 the proportions of industrial energy related to carbon emissions in central china and the beijing tianjin region decreased year by year while the opposite was the case in coastal areas of northern china furthermore the proportions in other regions basically remained unchanged 2 a weak decoupling relation between industry energy carbon emission and economic growth was found in most regions except in northwest china during the period 1996 2000 southwest china south and north coastal regions during the period 2001 2005 beijing and tianjin during the period 2010 2012 energy consumption decoupling factors exerted a consistent positive effect on industry energy carbon emission decoupling with decoupling impact greater than emission factors 3 the overall level of carbon emission reduction technology in china was low and backwards and limited contributions have been made to economic growth and industry energy carbon emission decoupling development emphases of decoupling should be put on energy saving technology promotion industry structure upgrading and energy structure improvement in the future 4 economic intensity effect has exerted the most powerful positive influence on carbon emissions except in developed areas and the positive effect was weaker than that in other regions

multivariate mixed proportional hazard modelling of the joint retirement of married couples we analyse the joint distribution of the durations until retirement of danish husbands and wives we estimate a multivariate mixed proportional hazards model that allows for interdependence in the times to retirement of spouses we find evidence of strong complementarities in leisure times symmetrically for husband and wife low own income and poor health are found to induce individual retirement prior to spouse s retirement whereas low spousal income is not and neither party is found likely to substitute own for purchased care when the spouse is in poor health furthermore high wealth and low income are found to spur joint simultaneous retirement copyright 2004 john wiley sons ltd

carbon dioxide emissions intensity of portuguese industry and energy sectors a convergence analysis and econometric approach abstract given the relevance of energy and pollution issues for industrialised countries and the importance of industry and energy sectors to the achievement of their economic and environmental goals it is important to know if there is a common pattern of emissions intensity fuel intensity and energy intensity between industries to know if it justifies a more specific application of energy policies between sectors which sectors have the greatest potential for reducing energy use and which are the long term effects of those specific variables on the mitigation of emissions we found that although there is literature on decomposition of effects that affect emissions the study of the convergence and of the relationships between these variables does not include ratios or effects that result from the decomposition analysis thus the above questions are not answered much less for the portuguese reality the purpose of this paper is to study i the existence of convergence of some relevant ratios as carbon dioxide co 2 emissions intensity co 2 emissions by fossil fuel consumption fossil fuel intensity energy intensity and economic structure between industry and energy sectors in portugal and ii the influence that the consumption of fossil fuels the consumption of aggregate energy and gdp have on co 2 emissions and the influence that the ratios in which co 2 emissions intensity decomposes can affect that variable using an econometric approach namely panel corrected standard errors estimator we concluded that there is sigma convergence for all ratios with exception of fossil fuel intensity gamma convergence verifies for all ratios with exception of co 2 emissions by fossil fuel from the econometric approach we concluded that the considered variables have a significant importance in explaining co 2 emissions and co 2 emissions intensity

china s energy consumption change from 1987 to 2007 a multi regional structural decomposition analysis abstract increasing use of energy has helped to stimulate china s economy despite central planning china has great differences in economic development energy endowment and energy consumption across its regions this paper uses the structural decomposition approach to uncover the regional disparities in energy consumption from 1987 to 2007 we also examine six possible key factors for the change in energy consumption by region we find that final demand change outpaced efficiency improvements to drive up energy use in all regions between 1987 and 2007 more surprisingly from 2002 to 2007 it appears that changes in production structure enhanced energy consumption in most regions china produced more energy intensive goods for capital investment and export we contend that improving the energy efficiency of key energy intensive sectors would lead a significant decline in energy intensity energy directly or indirectly is flowing from northwest central and north china to coastal regions regional specific policies should be designed to promote production structure change and curb energy demand

semi parametric discrete choice measures of willingness to pay abstract a semi parametric discrete choice method is proposed to recover welfare measures from individual choice data the proposed method is compared with the traditional binary choice models in an application to measure benefits of recreation trips

contingent valuation and social choice the contingent valuation method for estimating the existence value of natural resources is examined for psychophysical robustness statistical reliability and economic sensibility extensions of standard models for willingness to pay and suitable econometric techniques for analyzing these models are developed the analysis is applied to a series of experiments on the value of preserving wilderness areas in the western united states the results call into question the reliability of the cv method for estimating existence values

assessing eco efficiency through the dea analysis and decoupling index in the latin america countries abstract this study was developed according to a two step approach in the first step we provide an investigation of the changes in eco efficiency under constant and variable return to scale while on a second step the evaluation of the decoupling elasticity will be given the impacts of energy economic and environmental determinants inputs on the performance indicators of eco efficiency were calculated as the inverse of the carbon intensity ratio of the gdp over the co2 emissions both from the world development indicators database the changes in eco efficiency and the decoupling elasticity between co2 emissions and economic growth changes data was used for 16 latin america countries according to five year periods from 1994 to 2013 for all the five time span considered it is worth noting that the degree of technical efficiency for the latin america countries is lower than the degree of technological efficiency thus indicating that a portion of the overall inefficiency is due to the fact that these countries are producing below the production frontier rather than to an inefficient use of technology on average the results have confirmed that the technological scale change in energy production is the dominant factor influencing the optimal production frontier in the sample of countries under analysis complementarily according to the mixed results from the decoupling analysis we may conclude that the increase decrease of the co2 per capita emissions was due to other economic and environmental factors rather than to a negative positive effect of the gdp growth rate

oligopolistic competition and the optimal provision of products this paper considers the theory of market versus optimal product diversity in the light of two recent advances in oligopoly theory the first is the development of discrete choice models to describe heterogeneous consumer tastes and the application of such models to oligopolistic competition the second advance is the proof that logconcavity of the consumer taste density guarantees the existence of a price equilibrium we analyze an oligopoly model with price competition and free entry taking explicit account of the integer constraint under the chamberlinian symmetry assumption that tastes are i i d we first show that logconcavity of the taste density implies there is excessive market provision of variety when each consumer buys one unit of the product from one of the firms we then show that this result extends to price sensitive individual demands by proving that the equilibrium number of firms is at least as great as that which would be provided at the second best social optimum subject to a zero profit constraint for firms our results call into question previous findings for representative consumer models that left open the possibility of insufficient product diversity

spatiotemporal evolution of decoupling and driving forces of co2 emissions on economic growth along the belt and road abstract since the belt and road initiative bri has increased the economic growth of many developing countries in asia more attention should be paid to carbon dioxide co2 emissions in these regions based on the tapio decoupling model and kaya lmdi model this paper investigates the spatiotemporal evolution of decoupling and driving factors of co2 emissions of 57 bri countries from 1991 to 2016 the results are as follows first the decoupling statuses of higher income countries are generally better than lower income countries second northeast asia south asia and west asia accounted for 68 5 16 8 and 13 3 of co2 emission increases in bri countries from 1991 to 2016 third almost all countries co2 emissions significantly rise due to economic growth while energy intensity reduces co2 emissions to some extent energy exports increase co2 emissions to varying degrees in asia countries but their impact has gradually fallen except for europe the population size effect increases co2 emissions especially in west asia china india russia and five opec countries show similar characteristics with the above regions

carbon intensity in production and the effects of climate policy evidence from swedish industry we analyze carbon intensity performance at firm level and the effectiveness of the swedish co2 tax carbon intensity performance is derived from a production technology and measured as changes in t

decomposition analysis for assessing the progress in decoupling industrial growth from co2 emissions in the eu manufacturing sector decomposition analysis is used in this paper not only to explain changes in industrial co2 emissions but also to comparatively evaluate the progress made in 14 eu countries in decoupling emissions from industrial growth the analysis is performed for the period 1990 2003 by distinguishing two time intervals for assessing progress prior to and following the agreement on the kyoto protocol the refined laspeyres model is used to determine the impact of 5 explanatory factors output energy intensity structure fuel mix and utility mix the obtained results are further elaborated in order to assess the real efforts undertaken in each country and their effectiveness in dissociating the economic and environmental dimensions of development moreover a rescaling procedure is implemented in order to adjust efforts to the average progress in the eu and proceed to a fair comparative evaluation it is found that most eu countries made a considerable but not always sufficient decoupling effort while no significant acceleration is observed in the post kyoto period

is energy transition promoting the decoupling economic growth from emission growth evidence from the 186 countries abstract a more comprehensive understanding the effects of energy transition on the decoupling economic growth from carbon emission growth at global and national scale can serve to develop more effective approaches towards to economic growth without emission growth this paper combined decoupling index model and decomposition approach to identify decoupling state and uncover factors driving decoupling process in the world and 186 countries divided into three groups upper middle income umi lower middle income lmi and high income hi between 1990 and 2014 regarding to decoupling state world experienced weak decoupling 1990 2000 expansive negative decoupling and expansive coupling 2000 2011 and weak decoupling 2011 2014 hi initially realized the most desirable strong decoupling while decoupling state of umi and lmi were rather not ideal enough especially lmi changed violently and appeared no clear improving trend turning to decomposition results energy transition had positively contributed to decoupling process of hi while not in umi and lmi hi enjoyed better energy utilization efficiency absolutely offsetting negative impact caused by economic scale to decoupling process more importantly umi and lmi had great economic potential and will definitely emit tremendous carbon emission without taking appropriate measurements consequently umi and lmi shall take more responsibility to reduce carbon emission and actively accelerate the process of energy transition so as to achieve economic growth strongly decouple from carbon emission

assessing the decoupling of economic growth from environmental impacts in the european union a consumption based approach abstract pursuing a responsible and sustainable development the united nations urged to decouple economic growth from environmental impacts several european union eu policies have been implemented towards such goal although multiple authors have evaluated the decoupling of the economic growth from the resource use or environmental concerns the environmental assessment mostly focused on pressures rather than impacts and used single indicators assumed to be a proxy of the overall effects on the environment furthermore no studies were found using a process based life cycle approach to quantify the environmental impacts of consumption to solve such research gap this paper assesses the decoupling in the eu focusing on potential environmental impacts complementing a production based approach with two options for accounting for the impacts of consumption the aim of this paper is to evaluate the decoupling of the economic growth in terms of gross domestic product from the environmental impacts due to eu 28 consumption assessed by means of life cycle assessment lca the decoupling is then assessed in impact terms rather than limited to pressures by using the environmental footprint ef2017 indicators which allows assessing 16 different impacts the consumption footprint indicator quantified the environmental impacts of eu apparent consumption including the territorial impacts domestic footprint and the embodied impacts in both imports and exports trade footprint the inventory of pressures for the trade component is compiled either with a bottom up approach process based lca of representative traded goods or a top down approach input output based lca methodological aspects influencing the decoupling assessment and the resulting outputs are presented and discussed according to the results the environmental impacts of eu 28 consumption showed decoupling during the last decades 2005 2014 between relative to absolute decoupling depending on the inventory modeling approach taken some countries showed higher decoupling levels than others displaying a heterogeneous map of eu 28 decoupling which was led by acidification particulate matter land use and eutrophication impacts notwithstanding current limitations the assessment of decoupling using consumption based environmental indicators is very promising for supporting policy making towards addressing the actual impacts driven by the eu production and consumption system

the decomposition of co2 emissions from energy use in greece before and during the economic crisis and their decoupling from economic growth abstract greece recorded a significant decline in co 2 emissions from energy use from 2003 to 2013 accompanied by a reduction in energy consumption particularly during the economic recession this study attempts to identify the driving forces of co 2 emissions related to energy consumption through the use of the complete decomposition technique developed by jw sun the decomposition analysis focuses on the four factors responsible for co 2 emissions the carbon intensity effect the energy intensity effect the structural effect and the economic activity effect the analysis covers all the major productive sectors of the greek economy the study covers the period 2003 2013 and is divided into two subperiods 2003 2008 and 2008 2013 in order to assess changes in the contribution of the examined factors during the economic crisis 2008 2013 the analysis is extended to examine the decoupling relationship between co 2 emissions and economic growth in greece with the use of the decoupling index

a semiparametric distribution for willingness to pay and statistical inference with dichotomous choice contingent valuation data this paper proposes a semiparametric willingness to pay distribution and discusses several aspects of statistical inference with dichotomous choice contingent valuation data we study likelihood based estimation of the model parameters with and without controlling for unobserved heterogeneity estimation of the mean and median willingness to pay and specification tests these statistical procedures are implemented using a data set in this application we find that a parametric model is rejected in favor of our semiparametric model that the heterogeneity can be adequately controlled using a simple density and that the semiparametric model offers more robust mean willingness to pay estimates

aggregation and imperfect competition on the existence of equilibrium we present a new approach to the theory of imperfect competition and apply it to study price competition among differentiated products the central result provides general conditions under which there exists a pure strategy price equilibrium for any number of firms producing any set of products this includes products with multi dimen sional attributes in addition to the proof of existence we provide conditions for uniqueness our analysis covers location models the characteristics approach and probabilistic choice together in a unified framework to prove existence we employ aggregation theorems due to prekopa 1971 and borell 1975 our companion paper caplin and nalebuff 1991 introduces these theorems and develops the application to super majority voting rules we present a new approach to the theory of imperfect competition and apply it to study price competition among differentiated products the central result is that there exists a pure strategy price equilibrium for any number of firms producing any set of products in addition to the proof of existence we provide conditions for uniqueness our model both unites diverse strands of the earlier literature and opens up uncharted areas for future analysis in particular we expand the traditional one dimensional framework to allow for multi dimen sional product differentiation our approach involves twin restrictions on consumer preferences one on individuals preferences the other on the distribution of preferences across society these are generalizations of the restrictions supporting 64 majority rule presented in caplin and nalebuff 1988 to prove existence we apply a new technique of aggregation this technique is valuable in a variety of other problems in the companion paper we use the aggregation result to generalize our earlier work on 64 majority rule and to characterize the relationship between the distribution of human capital and the distribution of income caplin and nalebuff 1991 there are additional applications in statistics and in search theory we begin with a brief review of the early literature on imperfect competition describing in more detail the existence problem and previous solutions section 3 presents our twin assumptions and shows that they cover many standard cases in section 4 we introduce the aggregation theorem and use it in the analysis of demand functions the proof of existence of equilibrium is in section

multiple product firms a nested logit approach this paper proves the existence of a symmetric equilibrium with multiproduct firms using a nested logit model of demand the demand model is parameterized by two variables that characterize different dimensions of preference for variety these reflect intragroup heterogeneity and intergroup heterogeneity a group or nest being the set of products produced by a firm there are then two dimensions to market performance the total number of firms and the range of products produced per firm it is shown that the market equilibrium involves an excessive number of firms but each firm provides too few products copyright 1992 by blackwell publishing ltd

product differentiation and oligopoly in international markets the case of the u s automobile industry this paper develops and estimates a model of the u s automobile industry on the demand side a discrete choice model is adopted that is estimated using micro data from the consumer expenditure survey the estimation results are used in conjunction with population weights to derive aggregate demand on the supply side the automobile industry is modelled as an oligopoly with product differentiation equilibrium is characterized by the first order conditions of the profit maximizing firms the estimation results are used in counterfactual simulations to investigate two trade policy issues the effects of the ver and exchange rate pass through

manufacturing energy use in eight oecd countries decomposing the impacts of changes in output industry structure and energy intensity this paper examines trends in manufacturing energy use in eight oecd countries decomposing the changes that occured between 1973 and 1987 into the effects of changes in aggregate manufacturing activity industry structure and energy intensities measured at the industry group level while manufacturing production grew in every country except the uk the rate of growth was variable from nation to nation structural change led to modest reductions in energy use in most countries although in norway structural change led to substantial growth in energy use the reduction in energy intensities was strikingly uniform across all nations ranging from 20 norway to 36 japan over the period of the analysis while other studies have used divisia decomposition techniques we use an alternative method based on laspeyres indices a comparison of the two techniques shows that they yield closely similar empirical results although the laspeyres approach is more easily interpreted while the interactions between changes in structure and intensity are arbitrarily assigned to the two factors by the divisia approach the lapeyres method yields interaction terms that explicitly account for such effects