simultaneous attainment of energy goals by means of green certificates and emission permits abstract we discuss the analytical effects of introducing emission permits and green certificates and the corresponding quotas as regulatory mechanisms to respectively reduce emissions from electricity production and ensure a certain deployment of renewable energy the different case studies in this paper show that both instruments can be used in order to reach an emission goal or a goal of renewable energy however the combination of these instruments and the way they are used is shown to be important for the price faced by consumers it is shown that the effect on the consumer price is not an unambiguous increase with the introduction of a green quota there is a choice between quotas leading to a lower consumer price and quotas leading to a higher consumer price as a result of this it is shown that it is always optimal to reach a renewable energy deployment goal by the use of green certificates however to reach an emission goal it is sometimes most favourable with respect to consumer prices to use green certificates and sometimes to use emission permits

consumer environmental concern and green product purchase in malaysia structural effects of consumption values this study examines the effects of consumption values i e functional value social value emotional value conditional value and epistemic value on malaysian consumers environmental concern as expressed in their purchase of green products it also investigates the differences between three usage groups light average and heavy users and the signi cant factors that promote those differences the study applies a quantitative method in which a structured self administered questionnaire is used data is analysed using the structural equation modelling sem technique via the analysis of moment structure amos computer programme version 21 and one way analysis of variance anova using the statistical package for social sciences spss computer programme version 21 empirical results confirm that social value has the paramount impact on consumers environmental concern as expressed by their purchase of green products and that epistemic value and functional value quality rank behind functional value price emotional value and conditional value have no significant effects statistically significant differences were observed when comparing the light users with average users and with heavy users p 0 05 the findings of this study introduce a new momentum for the preceding discoveries on consumer environmental concern as shown in the purchase of green products which is inadequately covered in the malaysian context they also provide important information for companies and encourage them to place more emphasis on social value epistemic value and functional value quality in their manufacturing in order both to boost environmental concern among consumers in their purchasing decision making and to produce green goods that will be readily liked by consumers

carbon tax or emissions trading an analysis of economic and political feasibility of policy mechanisms for greenhouse gas emissions reduction in the mexican power sector this study provides a comparative assessment of carbon pricing instruments for the mexican electricity sector contrasting a carbon tax with an emissions trading scheme ets the assessment is per

the chaotic duopolists revisited the adjustment process of three oligopolists is studied under cournot and stackelberg action it is demonstrated that with an iso elastic demand function and constant marginal costs the system can result in periodic or in chaotic behaviour in particular the case with two identical and one different oligopolists is focused which turns into a virtual duopoly though displaying a wider set of bifurcations than can occur in genuine duopoly

a duopoly game with heterogeneous green supply chains in optimal price and market stability with consumer green preference abstract as environmental problems exponentially rising the necessity of environmental protection and green purchase behavior is addressed by the increasing consumers this paper aims to analyze the effects of consumer green preference on members optimal decisions and the speed of the adjustment of the optimal price strategies for heterogeneous green supply chains the results elaborate that consumer green preference significantly influences the product green level of the manufacturer and the supplier and has intricate effects on the speed of the adjustment of the boundedly rational supply chain which directly affects the social stability the vicious competition and the unbalance market are caused by the overreaction of the boundedly rational and naive supply chain to consumer green preference

impact of renewables deployment on the co2 price and the co2 emissions in the european electricity sector abstract as of 2005 electricity generators in europe operate under the european union emission trading system eu ets at the same time european member states have launched support mechanisms to stimulate the deployment of renewable electricity sources res e res e injections displace co 2 emissions within the sectors operating under the eu ets and they reduce the demand for european union allowances euas thereby reducing the eua price this paper presents the results of an ex post analysis to quantify the impact of res e deployment on the eua price and co 2 emissions in the western and southern european electricity sector during the period from 2007 to 2010 following from an operational partial equilibrium model of the electricity sector this study shows that the co 2 displacement from the electricity sector to other ets sectors due to res e deployment can be up to more than 10 of historical co 2 emissions in the electricity sector the eua price decrease caused by res e deployment turns out to be likely significant

watching the fuel gauge an international model of automobile fuel economy utilizing a new international data set and a non linear maximum likelihood model this study analyses the role of fuel prices income government taxation and technological change in influencing the consumers choice of fuel economy the results of this study imply that the consumers choice of automobile fuel efficiency is less sensitive to fuel prices and income than previously believed this inelasticity of the demand for fuel economy is important to consider when evaluating the potential impact of higher fuel economy mandates or higher fuel taxes this study also found that fuel price differentials and differences in the level of automobile purchase and registration taxes account for most of the difference in automobile fuel economy across countries

an empirical study of direct rebound effect for passenger transport in urban china transport sector accounts for about 8 of total energy consumption in china and this share will likely increase in the visible future improving energy efficiency has been considered as a major way for reducing transport energy use whereas its effectiveness might be affected by the rebound effect this paper estimates the direct rebound effect for passenger transport in urban china by using the linear approximation of the almost ideal demand system model and simulation analysis our empirical results reveal the existence of direct rebound effect for passenger transport in urban china a majority of the expected reduction in transport energy consumption from efficiency improvement could be offset due to the existence of rebound effect we have further investigated the relationship between the magnitude of direct rebound effect and households expenditure it was found that the direct rebound effect for passenger transport tends to decline with the increase of per capita household consumption expenditure

the rebound effect gender and social justice a case study in germany abstract energy efficiency increases are essential in reducing energy consumption and co 2 emissions policy is therefore rightly concerned about rebound effects which cause energy and co 2 emission reductions to be less than anticipated a policy dilemma is emerging in that less economically privileged groups tend to show the highest rebound effects some studies suggest policymakers may therefore be reluctant to support energy efficiency upgrades among such groups this paper argues this is based on a misunderstanding of the conceptual structure of the rebound effect firstly a mathematical analysis confirms that the rebound effect is merely a comparison of proportions not a measure of absolute levels of energy consumption which are the real cause of increased co 2 emissions secondly an empirical study of commute distances in north rhine westphalia germany s largest state reveals that female commuters show considerably higher rebound effects than male commuters both in time and cross sectional analyses however male commuters consume the most energy and produce the most co 2 emissions by every measure this resonates with recent studies showing the same disjunction between rebound effects and absolute consumption in home heating among poorer and wealthier households policy needs to focus on absolute consumption levels and be cautious in interpreting rebound effects

quantifying co2 abatement costs in the power sector co2 cap and trade mechanisms and co2 emission taxes are becoming increasingly widespread to assess the impact of a co2 price marginal abatement cost curves maccs are a commonly used tool by policy makers providing a direct graphical link between a co2 price and the expected abatement however such maccs can suffer from issues related to robustness and granularity this paper focuses on the relation between a co2 emission cost and co2 emission reductions in the power sector the authors present a new methodology that improves the understanding of the relation between a co2 cost and co2 abatement the methodology is based on the insight that co2 emissions in the power sector are driven by the composition of the conventional power portfolio the residual load and the generation costs of the conventional units the methodology addresses both the robustness issue and the granularity issue related to maccs the methodology is based on a bottom up approach starting from engineering knowledge of the power sector it offers policy makers a new tool to assess co2 abatement options the methodology is applied to the central western european power system and illustrates possible interaction effects between e g fuel switching and renewables deployment

empirical estimates of the direct rebound effect a review beginning with william stanley jevons in 1865 a number of authors have claimed that economically justified energy efficiency improvements will increase rather than reduce energy consumption jevons paradox is extremely difficult to test empirically but could have profound implications for energy and climate policy this paper summarises and critiques the arguments and evidence that have been cited in support of jevons paradox focusing in particular on the work of len brookes and harry saunders it identifies some empirical and theoretical weaknesses in these arguments highlights the questions they raise for economic orthodoxy and points to some interesting parallels between these arguments and those used by the biophysical school of ecological economics while the evidence in favour of jevons paradox is far from conclusive it does suggest that economy wide rebound effects are larger than is conventionally assumed and that energy plays a more important role in driving productivity improvements and economic growth than is conventionally assumed 2008 elsevier ltd all rights reserved

rebound effect of efficiency improvement in passenger cars on gasoline consumption in canada abstract the fossil fuel driven transport sector has been one of the major contributors to co2 emission across the world keeping it on the energy policy agenda for the past three decades canada ranks second in gasoline consumption among oecd countries and canadian gasoline expenditure share has been increasing since the 1990s fuel efficiency policies aim to decrease gasoline consumption however the effect can be mitigated by changes in consumer behavior such as traveling more distances a rebound effect thus the effectiveness of fuel efficiency policy is dependent on the magnitude of the rebound effect in this paper we estimate the rebound effect for personal transportation in canada using data from the household spending survey for the period 1997 2009 the model includes a system of expenditure share equations for gasoline other energy goods and non energy goods specified by aids and quaids models and estimated by the nonlinear sur method our estimation results show a rather high average rebound effect of 82 88 but with significant heterogeneity across income groups provinces and gasoline prices specifically the rebound effect ranges from 63 to 96 across income groups and provinces and increases with gasoline prices

consumer responses to gasoline price and non price policies abstract gasoline consumption in emerging economies have been rising rapidly due to economic growth and increasing urbanization rate in recent years however the development has brought about new socio economic and environmental challenges leading governments to adopt various policies to control the trend although the impacts of price changes on gasoline consumption are well researched in the literature studies on different policies in a specific country is limited in this paper we investigate the impact of three distinct policies price reform rationing and fuel efficiency on consumer responses in iran we estimate price income and efficiency elasticities across household characteristics income groups and provinces using the aids model and the household expenditures data for the period 2005 2016 the results show that the average price elasticity is 76 however it varies across household characteristics time and space the price responses are greater in provinces neighbouring the countries with high price differentials and welfare losses of price reform are more sever for lower income families the estimated elasticities under different policy regimes show that energy price reform has led to significantly higher elasticities while rationing has led to decreased elasticities the more stringent efficiency regulation and increasing imports of fuel efficient cars have also increased elasticities

is renewable energy a cost effective mitigation resource an application to the spanish electricity market abstract this paper evaluates the net effect of renewable energy policy in spain from 2002 to 2017 and calculates its cost effectiveness in terms of co2 emission reductions in the production of electricity our conclusions indicate that although the phasing out of feed in tariffs reduced the regulatory costs it also limited renewable participation in the electricity market leading to an increased electricity price and higher emissions according to our results the joint effect of i the value of avoided emissions due to renewable energy participation and ii the merit order effect was able to compensate for the regulatory costs subsidies up until 2010 while the sign of the net effect was reversed from 2011 to 2017 finally we find that the economic implications of emission reductions are highly dependent on how the social cost of carbon is measured

the bunch of sustainability labels do consumers differentiate abstract a huge number of sustainable labels addressing the different pillars of sustainability emerged over the last years some labels promote factors which already imply other sustainability issues e g organic incl animal friendliness to a certain extent hence the question arises how consumers react towards the redundancies of different sustainability labels to add to the literature this study applies a latent class model for discrete choices first to test whether consumers take different sustainable labels into account when making their decision and second to test how consumers deal with different sustainable labels that are partly claiming the same aspect results indicate that three consumer segments with well distinguished preferences and willingness to pay measures for the respective attributes can be identified one group being the price sensitives exclusively deciding on the product with the lowest price regardless of any sustainable attribute of the product another group opts for products with a sustainable label without any clear preference for a specific sustainable attribute but expressing a clear willingness to pay more for all presented sustainable labels i e the label choosers a third group can be named price conscious label discriminators for them some sustainable aspects provide negative utility when labelled exclusively e g organic or free of genetically modified organisms but labelled together e g organic together with free of genetically modified organisms or animal welfare it provides them significantly positive utility even though being redundant by definition based on our findings there is no general statement to be made regarding the question whether different sustainable aspects complement or substitute each other the research rather emphasizes that a differentiated look at different consumer types and different labels symbolizing sustainability is needed the research adds to the existing literature by examining not only the relevance and acceptance of different sustainable labels to different consumer segments but also the interrelationship of different sustainable labels the study clearly shows that with regard to different sustainable labels the more the merrier does not always apply however almost 85 of the market could be satisfied with a universal sustainability label

co2 abatement from renewables in the german electricity sector does a co2 price help abstract the overlapping impact of the emission trading system ets and renewable energy re deployment targets creates a classic case of interaction effects whereas the price interaction is widely recognized and has been thoroughly discussed the effect of an overlapping instrument on the abatement attributable to an instrument has gained little attention this paper estimates the actual reduction in demand for european union allowances that has occurred due to re deployment focusing on the german electricity sector for the five years 2006 through 2010 based on a unit commitment model we estimate that co 2 emissions from the german electricity sector are reduced by 35 to 60 mtons or 10 to 18 of what estimated emissions would have been without any re policy but with the co 2 price remaining in place at the observed level furthermore we find that the abatement attributable to re injections is greater in the presence of an allowance price than otherwise the same holds for the ets effect in presence of re injection this interaction effect is consistently positive for the german electricity system at least for the considered years and on the order of 0 5 to 1 5 of emissions

modeling gasoline demand in the united states a flexible semiparametric approach abstract the focus of this paper is on the modeling and estimation of quarterly state level gasoline demand in the united states the existing literature may not appropriately evaluate the price elasticity and income elasticity of gasoline demand most studies fail to address the possible heterogeneity in gasoline demand elasticities that may arise from a variety of sources the endogeneity issue of gasoline price has remained redundant throughout the literature i address these challenges using a flexible demand model and a recently developed estimation technique the econometric approach allows for functional coefficients to accommodate the heterogeneity in demand elasticities several instrumental variables are used to investigate the endogeneity of gasoline price the estimation results provide strong evidence of heterogeneous gasoline demand elasticities across states and over time some state level attributes along with income and macroeconomic shocks are the potential sources of heterogeneity

technological efficiency and the demand for energy road transport this paper reconsiders how far fuel efficiency induced by technological progress and presumably by high energy prices affects energy demand this investigation is motivated by one of the most important phenomenon of recent energy demand developments apparent asymmetry with respect to energy prices

causes of the eu ets price drop recession cdm renewable policies or a bit of everything new evidence the price of eu allowances euas in the eu emissions trading scheme eu ets fell from almost 30 tco2 in mid 2008 to less than 5 tco2 in mid 2013 the sharp and persistent price decline has sparked intense debates both in academia and among policy makers about the decisive allowance price drivers in this paper we examine whether and to what extent the eua price drop can be justified by three commonly identified explanatory factors the economic recession renewable policies and the use of international credits capitalizing on marginal abatement cost theory and a broadly extended data set we find that only variations in economic activity and the growth of wind and solar electricity production are robustly explaining eua price dynamics contrary to simulation based analyses our results point to moderate interaction effects between the overlapping eu ets and renewable policies the bottom line however is that 90 of the variations of eua price changes remains unexplained by the abatement related fundamentals together our findings do not support the widely held view that negative demand shocks are the main cause of the weak carbon price signal in view of the new evidence we evaluate the eu ets reform options which are currently discussed

analysing gasoline demand elasticities a survey this paper is a survey of studies on gasoline demand although there are very many dxerent studies in this eld which sometimes appear to arrive at contradictory results we find that with proper stratification of studies by model and data type much of the contict turns to consensus in this survey we classtfy studies by data type and by ten d erent categories of model and with the exception of estimates on seasonal data which tend to be unstable and of certain inappropriate model formulations we find a fair degree of agreement concerning average short run and even long run income and price elasticities

carbon mitigation in the electric power sector under cap and trade and renewables policies in europe co2 emissions from the electric power sector and energy intensive industries are capped under a cap and trade system i e the eu ets when other indirect measures are taken to impact emissions in a specific sector under the cap such as a push for renewables in the electric power sector this has implications on the overall allowance price and on co2 emissions both from this specific sector and the other sectors under the cap the central contribution of this paper is the derivation of impact curves which describe these interactions i e the impact on allowance price and the shift of emissions across sectors from a set of detailed simulations of the electric power system operation a so called emission plane is obtained from which impact curves can be derived focus is on interactions between co2 abatement through fuel switching and measures affecting the residual electricity demand such as deployment of renewables in the electric power sector as well as on interactions with other sectors both in a short term framework a case study for central western europe is presented the analysis reveals a substantial impact of renewables on co2 emissions and hence on emissions shifts across sectors and or on the co2 price

interactions of a tradable green certificate market with a tradable permits market abstract the reduction of greenhouse gas ghg emissions is an important goal in the energy and environmental policies of the european union eu and its member states according to a recent directive proposal from the eu commission the inclusion of renewable technologies is one of the important ways to achieve this emission reduction more policy instruments are on hand to pursue this objective frequently discussed currently is the establishing of a market for tradable permits for co2 emissions to achieve emission reductions in the power industry in parallel with this is the introduction of a green certificate market to promote the development of renewables if these two instruments are brought into play at the same time two separate markets with two individual targets will co exist in a number of countries with a focus on the green certificate market this paper discusses how these two markets may interact with each other in international trade three different cases are analysed 1 a green certificate market without any tradable permits scheme 2 a green certificate market in combination with a tradable permits scheme based on grandfathering and finally 3 a green certificate market in combination with a tradable permits bidding scheme emphasis is placed on analysing the pricing mechanisms in international trade at the green certificate and tradable permits market in relation to the value of the reductions in ghg emissions actually achieved the influence of the permits scheme on the spot market price of electricity is shown and the benefits of trading green certificates compared to a domestic implementation of renewable technologies are discussed the main conclusion is that only if a green certificate market is combined with a tradable permit scheme based on a bidding procedure will trade in certificates be equivalent to the domestic development of renewables using the bidding system no other country will have to pay for co2 reductions in the home country of the renewable development as would otherwise be the case if a tradable permit system based on grandfathering were introduced or even worse if no tradable permits were introduced at all finally it must be stated that even if the green certificate market were introduced alongside with a tradable permit bidding system there still would be no incentives for international certificate trade on account of the need for ghg reductions in the version of the green certificate market discussed in this paper no ghg credits are attached to certificates this means that the development of renewables will add to ghg reductions only in those countries where the plants are established no matter what kind of tradable permit scheme is adopted

analysis of the eu policy package on climate change and renewables abstract in 2009 the eu decided to reduce greenhouse gas emissions at least by 20 in 2020 compared to 1990 and to supply 20 of energy needs by 2020 from renewable energy sources this paper uses an energy model coupled with a non co 2 greenhouse gas model to assess the range of policy options that were debated to meet both targets policy options include trading of renewable targets carbon trading in power plants and industry and the use of the clean development mechanism to improve cost efficiency the models also examined fairness by analysing the distribution of emission reduction in the non emission trading sector the distribution of co 2 allowances in the emission trading sector and the reallocation of renewable targets across member states the overall costs of meeting both targets range from 0 4 to 0 6 of gdp in 2020 for the eu as a whole the redistribution mechanisms employed significantly improve fairness compared to a cost effective solution

supply elasticity matters for the rebound effect and its impact on policy comparisons abstract we develop a model of the rebound effect which explicitly accounts for both the demand and supply sides of the energy sources we consider a transportation sector originally using a dirty fossil fuel and examine the relative effectiveness of alternative policies efficiency improvements in the dirty fuel technology sector e g cafe standards and technology shifts by partial adoption of a new clean technology e g low carbon fuel standards the model generates endogenous equilibrium quantities and prices for the dirty and clean fuels we characterize the magnitude of the rebound effect as a function of demand and supply elasticities and use the equilibrium values to compare policy options when the supply of the dirty fuel is inelastic we find that introducing a new technology with non zero emissions may actually increase the total level of emissions similar to the leakage effect a technology shift policy can perform better than an efficiency improvement policy in the dirty fuel sector only when the dirty fuel supply is sufficiently elastic the emission intensity of the new technology very low and the technology shift is greater than a threshold value using data for gasoline as a proxy for the dirty technology and several other cleaner technologies we show that these conditions are satisfied by a hypothetical zero emission technology but not by electric vehicles using the average us generation mix or the current us corn based e85 our results demonstrate the importance of accounting for the supply side in estimating the magnitude of the rebound effect and its impact on fuel consumption in a large scale policy implementation

impact of the economic recession on the european power sector s co2 emissions abstract this paper investigates the impact of the economic recession on co 2 emissions in the european power sector during the years 2008 and 2009 three main determinants of the power sector s emissions are identified the demand for electricity the co 2 price and fuel prices a counterfactual scenario has been set up for each of these i e what these parameters would have been if not affected by the recession a simulation model of the european power sector is then employed comparing a historical reference simulation taking the parameters as actually occurred with the counterfactual scenarios the lower electricity demand due to the recession is shown to have by far the largest impact accounting for an emission reduction of about 175 mton the lower co 2 price due to the recession resulted in an increase in emissions by about 30 mton the impact of fuel prices is more difficult to retrieve an indicative reduction of about 17 mton is obtained mainly as a consequence of the low gas prices in 2009 the simulated combined impact of the parameters results in an emission reduction of about 150 mton in the european power sector over the years 2008 and 2009 as a consequence of the recession

when renewable portfolio standards meet cap and trade regulations in the electricity sector market interactions profits implications and policy redundancy emission trading programs c t and renewable portfolio standards rps are two common tools used by policymakers to control ghg emissions in the energy and other energy intensive sectors little is known however as to the policy implications resulting from these concurrent regulations especially given that their underlying policy goals and regulatory schemes are distinct this paper applies both an analytical model and a computational model to examine the short run implications of market interactions and policy redundancy the analytical model is used to generate contestable hypotheses while the numerical model is applied to consider more realistic market conditions we have two central findings first lowering the co2 c t cap might penalize renewable units and increasing the rps level could sometimes benefit coal and oil and make natural gas units worse off second making one policy more stringent would weaken the market incentive which the other policy relies upon to attain its intended policy target

does california s co2 price affect wholesale electricity prices in the western u s a abstract using a sample of daily market data we quantify the effect of california s co 2 cap and trade program on the wholesale electricity prices of four interconnected market hubs in the western u s a north of path 15 np15 and south of path 15 sp15 in california mid columbia mid c in the pacific northwest and palo verde pv in the desert southwest a 1 metric ton increase in california s co 2 price is estimated to have increased the electricity prices by 0 41 mwh p value p value p value 0 0056 for mid c and 0 15 mwh p value 0 0925 for pv these estimates reflect a the np15 and sp15 sellers pricing behavior of fully including the co 2 price in their intra state transactions b the mid c price s 100 pass through of the co 2 price in the pacific northwest s hydro export to california and c the statutory obligation of paying the co 2 emissions cost by california s buyers of the electricity imported from the desert southwest the policy implication is that internalization of co 2 s externality in the western u s a requires a cap and trade program with a regional scope that encompasses all four hubs thereby remedying the california program s limited geographic coverage which introduces distortions in neighboring markets