control of accumulating stock pollution by heterogeneous producers abstract this paper presents a framework to determine optimal resource allocation over time for the production of a good by heterogeneous producers who generate a stock externality we analyze the optimal intertemporal and quality specific combination of abatement strategies at the source source abatement given by a change in the intensity intensive margin of production and in the chosen technology extensive margin and or removal of existing pollution stock stock abatement the results show how the specifications of the production and the emission functions affect technology adoption and the design of the optimal intertemporal combination of source and stock abatement strategies moreover the paper shows that regulation at the intensive margin cannot be considered as a substitute for a regulation at the extensive margin the paper employs the so called two stage solution approach for solving the resulting quality distributed intertemporal optimal control problem

the inflation output trade off with downward wage rigidities the macroeconomic implications of downward nominal wage rigidi ties are analyzed via a dynamic stochastic general equilibrium model featuring aggregate and idiosyncratic shocks a closed form solution for a long run phillips curve relates average output gap to average wage inflation it is virtually vertical at high inflation and flattens at low inflation macroeconomic volatility shifts the curve outwards and reduces output the results imply that stabilization policies play an important role and that optimal inflation may be positive and dif fer across countries with different macroeconomic volatility results are robust to relaxing the wage constraint for example when large idiosyncratic shocks arise jel e23 e24 e31 e63

the sustainable supply chain network competition with environmental tax policies abstract this paper captures different environmental tax policies in a multi tiered supply chain network competition context we derive the governing equilibrium conditions for the noncooperative game theory models for each firm and provide the equivalent variational inequality formulations the numerical examples investigate the impacts of emission tax policies and product differentiation on the competing firms and compare the effects of different environmental policies flat emission tax rates progressive emission taxes and the government command and control regulations with emission standards on equilibrium product demands prices total emissions and overall profits the computational results indicate that the implementation of environmental tax policies along with an increase in consumers environmental concerns can not only motivate the firms to perform sustainable operations but also reduce the total carbon footprint furthermore the low cost progressive emission tax policies can be as effective as the high flat emission tax rate in terms of reduction in carbon footprint therefore the model developed in this paper can be used by the policymakers and the firms to evaluate the effects of different environmental tax policies in a supply chain competition context

environmental tax on products and services based on their carbon footprint a case study of the pulp and paper sector the main aim of this work is to define an environmental tax on products based on their carbon footprint we examine the relevance of life cycle analysis lca and environmentally extended input output analysis eio as methodological tools for identifying the emission intensities on which the tax is based the price effects of the tax and the policy implications of considering non co2 greenhouse gases ghg are also analyzed the results from the case study on pulp production show that the environmental tax rate based on lca 1 8 is higher than both eio approaches 0 8 and 1 4 for product and industry respectively but they are of the same order of magnitude although lca is more product specific and provides a more detailed analysis we recommend eio as a more relevant approach to applying an economy wide environmental tax if an environmental tax were applied to non co2 ghg instead to co2 alone the tax would greatly affects sectors such as agriculture mining of coal extraction of peat and food therefore it is worthwhile for policy makers to pay attention to the implications of considering either a co2 tax or a global ghg emissions tax in order to make their policy measures effective and meaningful

global warming policy a public finance perspective in the last few years a substantial volume of research has considered the design of taxes to slow greenhouse gas emissions as well as the economic effects of such policies in this paper i summarize the insights that have emerged from this work i begin by explaining that while efficiency considerations create a presumption for using coordinated international policies to alter greenhouse gas emissions the prospects for such action are bleak then i focus on the public finance of carbon taxes at the national level considering the design of such taxes as well as their incidence across and within nations next i focus on greenhouse gas emission policies that could be enacted in less developed countries such as the elimination of fossil fuel subsidies and other policies to slow deforestation finally i suggest several promising directions for future study

joint management of emission abatement and technological innovation for stock externalities we investigate how emission abatement and technological innovation provide different solutions to reduce pollutant emissions in the case of a stock externality emission abatement leads to a smooth and continuous adjustment of emissions conversely technological innovation has to be interpreted as an option on a less polluted environment and can justify the use of a pollution threshold above which it is optimal to start a research and development programme for a less polluting technology it is shown that technological innovation interferes with the traditional emission abatement approach the optimal abatement level is logically lowered once the less polluting technology is available nevertheless a temporary increase in emissions is optimal during the research and development period the usual pigouvian tax system proves to remain an efficient corrective instrument a numerical application to the greenhouse effect is provided

the induced innovation hypothesis and energy saving technological change we develop a methodology for testing hicks s induced innovation hypothesis by estimating a product characteristics model of energy using consumer durables augmenting the hypothesis to allow for the ine uence of government regulations for the products we explored the evidence suggests that i the rate of overall innovation was independent of energy prices and regulations ii the direction of innovation was responsive to energy price changes for some products but not for others iii energy price changes induced changes in the subset of technically feasible models that were offered for sale iv this responsiveness increased substantially during the period after energy efficiency product labeling was required and v nonetheless a sizable portion of efficiency improvements were autonomous

tax policy and aggregate demand management under catching up with the joneses this paper examines the role for tax policies in productivity shock driven economies with catching up with the joneses utility functions the optimal tax policy is shown to affect the economy countercyclically via procyclical taxes i e cooling down the economy with higher taxes when it is overheating in booms and stimulating the economy with lower taxes in recessions to keep consumption up thus models with catching up with the joneses utility functions call for traditional keynesian demand management policies but for rather unorthodox reasons

what can we learn from the grand policy experiment lessons from so2 allowance trading stable url http links jstor org sici sici 0895 3309 28199822 2912 3a3 3c69 3awcwlft 3e2 0 co 3b2 tthe journal of economic perspectives is currently published by american economic association your use of the jstor archive indicates your acceptance of jstor s terms and conditions of use available athttp www jstor org about terms html jstor s terms and conditions of use provides in part that unless you have obtainedprior permission you may not download an entire issue of a journal or multiple copies of articles and you may use content inthe jstor archive only for your personal non commercial use please contact the publisher regarding any further use of this work publisher contact information may be obtained athttp www jstor org journals aea html each copy of any part of a jstor transmission must contain the same copyright notice that appears on the screen or printedpage of such transmission the jstor archive is a trusted digital repository providing for long term preservation and access to leading academicjournals and scholarly literature from around the world the archive is supported by libraries scholarly societies publishers and foundations it is an initiative of jstor a not for profit organization with a mission to help the scholarly community takeadvantage of advances in technology for more information regarding jstor please contact support jstor org http www jstor orgtue jun 26 16 25 17 2007

the role of policy instruments in the innovation and diffusion of environmentally friendlier technologies popular claims versus case study experiences abstract moving towards sustainability will require that new environmentally friendlier technologies are developed and widely adopted policy instruments that promote eco efficiency are therefore necessary some claims frequently made in the literature on the relationship between policy instruments and technological development are examined the claims concern regulations environmental taxation and funding of research and development the claims are explored on the basis of empirical evidence from two sectors the pulp and paper industry and the marine engine industry little support was found for some of the claims in some cases even contradictory findings and for some claims the findings differed between the sectors and even within a sector depending on the issue

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

how do policies for efficient energy use in the household sector induce energy efficiency innovation an evaluation of european countries abstract research on innovation induced by climate mitigation policy has been focused predominantly on the supply side of the energy system despite considerable climate mitigation potential on the demand side less attention is given to the innovation effect of policies addressing the household sector based on a comprehensive data set including 550 policy measures over 30 years 1980 2009 and covering 21 european countries we find based on econometric estimations that policies targeting efficient energy use in the household sector significantly increase the number of patented energy efficiency inventions a comparison of the different policy types reveals a particularly strong influence from financial subsidies and energy labels the results indicate that policies supporting early market adoption of energy efficient technologies are effective in fostering innovation

res diffusion and r d investments in the flexibilisation of the european electricity networks abstract the present analysis adds up to the discussion carried around the flexibilisation of the electricity networks as means of higher diffusion of renewable energy sources res inspiring from innovation studies the paper proposes an economic rationale for considering res technology manufacturers as investors in electricity networks moreover the present analysis scrutinize the extent to which the various economic operators within specific segments of the power supply chain invest in a portfolio of research and development activities among which the electricity grids and storage technologies the intensity of these research investments was mapped across the european countries for the year of 2011 their geographic distribution confirms the rationale of an analysis based on canonical correlation testing the associations between res market diffusion and power network indicators the analysis provides useful insights for specific technology such as the one revealing pv market sensitivity to research investments in storage technologies confirming a potential business model coupling the two technologies accommodating this pattern and enabling further diversification of research portfolios the public incentives could be redesigned in order to address the flexibilisation of power networks

a smarter plan a policy comparison between great britain and ireland s deployment strategies for rolling out new metering technologies abstract the irish and british governments have recently mandated the replacement of domestic gas and electricity meters with smart meters their deployment strategies differ based on the extent to which deregulation of the gas and electricity market has been successful a broad debate has been held on the various assumptions justifying the cost benefit analyses and the permutations of these assumptions what has been paid less attention is to what end is a smart meter being employed towards a corollary research question is whether the deployment plan is targeting the correct sector if the purpose is to introduce automated meter reading across the housing sector then a better strategy would be to legislate for accurate monthly bills as in sweden allowing suppliers to have greater flexibility will likely reward rather than stifle the design of competition if the purpose is to manage demand then it may be that it s working with complex tariffs and not the meter per se that counts the high consuming end use categories and profile classes would be better placed for that exercise innovation theory also supports the targeting of new innovations to larger consumers allowing metering innovations to proceed along historical trajectories

setting the standard a framework for evaluating the cost effectiveness of building energy standards abstract the adoption rate and stringency of building energy standards in the u s have been increasing since the mid 1990s as a result of the energy policy act mandate of 1992 epact current evidence on the energy savings that accrue from commercial building energy standards is based on engineering simulations which do not account for realized behaviour once a standard is actually adopted this paper uses quasi experimental variation in commercial building energy standard adoptions to estimate their effect on realized electricity consumption and cost effectiveness in states induced by epact to adopt an energy standard where all new nonresidential construction was erected under a commercial standard electricity consumption per service worker is lower by about 12 and total commercial electricity consumption is lower by 10 including early adopters and never adopters to the analysis leads to a downward bias in the treatment effect the realized electricity savings in the epact states represent three quarters of predicted simulated savings and electricity saved in 2010 came at a cost of approximately 7 7 cents per kwh

habit formation in consumption and its implications for monetary policy models this paper explores a monetary policy model with habit formation for consumers in which consumers utility depends in part on current consumption relative to past consumption the empirical tests developed in the paper show that one can reject the hypothesis of no habit formation with tremendous condence largely because the habit formation model captures the gradual hump shaped response of real spending to various shocks the paper then embeds the habit consumption specication in a monetary policy model and nds that the responses of both spending and inflation to monetary policy actions are signicantly improved by this modication jel d12 e52 e43

relative consumption benchmarks abstract i construct a general multi good model of consumption externalities that allows for relative jealousies and relative keeping up with the joneses effects these relative social consumption contexts have the ability to reinforce or mitigate each other

incentives to diffuse advanced abatement technology under environmental liability law polluting firms with advanced abatement technology at their disposal have incentives or disincentives to share this technology with other polluting firms the direction and extent of those incentives depends on the liability rule applicable and the way technical change impacts marginal abatement costs we establish that incentives for diffusion are socially optimal under strict liability and socially suboptimal under negligence if technical change lowers marginal abatement costs for all levels of abatement negligence may however induce better diffusion incentives than strict liability if technical change decreases increases marginal abatement costs for low high levels of abatement

induced technical change adjustment costs and environmental policy modelling in this paper i develop a neo schumpeterianmodel of induced technical change where firms polluters determine their effort in environment saving technical change two technological scenarios are distinguished depending on whether basic research is endogenous or exogenous building on this analytical setting i show that in the presence of non linear adjustment costs the choice of instruments of environmental policy should be tailored to the actual characteristics of the firms polluters technological environment moreover this analysis confirms that searching for efficient environmental policy mixes is more rewarding than focusing on single instruments notably pollution taxation

the problem of the commons still unsettled after 100 years the problem of the commons is more important to our lives and thus more central to economics than a century ago when katharine coman led off the first issue of the american economic review as the us and other economies have grown the carrying capacity of the planet in regard to natural resources and environmental quality has become a greater concern particularly for commonproperty and open access resources the focus of this article is on some important unsettled problems of the commons within the realm of natural resources there are special challenges associated with renewable resources which are frequently characterized by open access an important example is the degradation of openaccess fisheries critical commons problems are also associated with environmental quality a key contribution of economics has been the development of market based approaches to environmental protection these instruments are key to addressing the ultimate commons problem of the twenty first century global climate change jel q15 q21 q22 q25 q54

energy paradox and political intervention a stochastic model for the case of electrical equipments abstract this paper develops a model that explains the delay of decisions to adopt profitable energy saving investments this problem is known as the energy paradox the model rationalizes the profitability requirements raised by the irreversibility the uncertainty and the decrease of costs as a result of learning by doing in this context the wait gives investors more visibility and more lower investment costs which gives them an option value the representative agent has an interest to postpone its energy saving decision until future benefits increase and equalize its required option value formally we internalize these explanatory factors in a stochastic model where the updated energy saving benefits follows a geometric brownian motion to affirm the capacity of the model we generate simulation results for two equipments for electrical uses beyond that we extend the model to simulate the effects of energy policy instruments to promote adoption of such equipments simulations prove that the taxation of energy prices is likely to be more effective than the subsidy for energy saving equipments it is also found that the combination of these instruments amplifies the adoption of energy saving equipments and generates very favorable economic and environmental externalities

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

dedicated tax subsidy scheme for reducing emissions by promoting innovation in buildings the ecotax abstract the european union has unilaterally committed to a 20 reduction of the greenhouse gas emissions and another 20 increase in energy efficiency by 2020 this work presents ecotax an economic policy instrument that supports the simultaneous achievement of both objectives in the building sector the proposed instrument is a tax subsidy scheme attached to the difference between the actual emissions and a specified target it uses market pricing to value emissions trading price and is directly integrated into the energy efficiency certification scheme thus minimizing the administrative costs of its establishment during the project phase the tax subsidy falls on the construction companies which facilitates the funding of innovation in technology in the operation phase it falls on proprietors or end users stimulating sustainable consuming habits in both cases the administration acts as an intermediary channeling funds from low to high energy efficiency agents inside and outside the sector itself although the instrument is specifically proposed for the building sector it is easily translatable to other sectors that are not necessarily included in the emission allowance trading scheme of the european union

ecological deficit tax a tax design and simulation of compensation for ecosystem service value based on ecological footprint in china abstract the expansion of resource tax to the occupation of natural ecological space is an important part of china s tax reform this paper quantifies the occupation of natural ecological space based on the demand for energy water and agriculture resources in terms of an ecological footprint and creatively convert the carbon emissions from energy consumption to occupation of carbon sinks such as woodlands and grasslands to obtain the ecological deficits in various regions of china based on the evaluation of the ecological service value the paper determines the correspondence between consumption projects land types and ecological functions realized the accounting of the economic value of the national ecological deficit as the sum of the regional deficits based on this the ecological deficit is used as an unpaid input factor in the construction of a green social accounting matrix table and a recursive dynamic computable general equilibrium model is used to analyze the effects of a tax policy on the compensation for the ecological deficit value the simulation results show that the double dividend hypothesis exists in the primary and tertiary industries and employment in the secondary industry that with a high value added labor decreased resulting in decreases in both the labor income of residents and their proportion of the national income the growth rate of gdp decreases in the short term and then gradually increases capital appreciation and net exports contribute greatly to economic growth based on the positive role of taxation schemes in reducing ecological deficits and their negative impacts on economic growth and the income distribution this paper suggests that with the improvement of big data on ecological occupation an ecological deficit tax can be introduced to target the energy sector which has a large ecological footprint in addition household income should be protected through tax cuts transfer payments and earmarked funds among other means to promote economic growth and protect the environment

the price consumption puzzle of currency pegs abstract a defining stylized fact associated with exchange rate based stabilization programs is that their initial phase is characterized by several years of continuous expansion in private consumption and a gradual appreciation of the real exchange rate this paper shows that a large class of standard optimizing models is unable to account for this empirical regularity in particular models in this class predict that a gradual appreciation of the real exchange rate must necessarily be accompanied by a declining path of consumption the paper suggests several possible solutions to this problem and develops one in detail namely the relaxation of the assumption of time separability in preferences specifically it shows that under habit formation currency pegs induce a positive comovement between consumption and the real exchange rate the paper also establishes that habit formation provides an explanation for why in failed currency pegs a contraction in aggregate demand sets in before the collapse of the program

downward nominal wage rigidity in canada evidence from micro level data we assess the importance of downward nominal wage rigidity dnwr in canada using both firm and worker level microdata in particular we analyze employer level administrative data from the major wage settlements mws and household based survey data from the survey of labour income dynamics slid

the tragedy of the commons in a fishery when relative performance matters this paper presents a simple model of a common access fishery where fishermen care about relative performance as well as absolute profits our model captures the idea that status which depends on relative performance in a community influences a person s well being in our main specification relative performance depends on the absolute difference in after tax profits we show that overharvesting resulting from the tragedy of the commons problem is exacerbated by the desire for higher relative performance leading to a smaller steady state fish stock and smaller steady state profit for all the fishermen we also consider alternative specifications where status depends on the absolute difference in harvests or relative difference in profits or where there is heterogeneity in the degree to which status matters or allowing for the possibility of extinction in all these specifications status further reduces the steady state fish stock we examine taxes and an individual quota as policy alternatives and find support for using the direct quantity method to implement the socially efficient stock level

how much energy do building energy codes save evidence from california houses regulations governing the energy efficiency of new buildings have become a cornerstone of us environmental policy california enacted the first such codes in 1978 and has tightened them every few years since i evaluate the resulting energy savings three ways comparing energy used by houses constructed under different standards controlling for building and occupant characteristics examining how energy use varies with outdoor temperatures and comparing energy used by houses of different vintages in california to that same difference in other states all three approaches yield estimated energy savings significantly short of those projected when the regulations were enacted

food miles carbon footprint and global value chains for spanish agriculture assessing the impact of a carbon border tax abstract we develop a multiregional input output model to evaluate the importance of international trade of agricultural products as well as their food miles emissions on the proposed extended carbon footprint ecf measure of spanish agriculture in 2000 2008 this measure of ecf incorporates the virtual carbon embodied domestic imported and international transport in the consumption of spanish products of agriculture plus the direct emissions or producer responsibility of the spanish agriculture sector our results show that spanish agriculture ecf in 2008 is 18 5 mt co 2 more than doubles the usual measure of carbon footprint the importance of these emissions leads us to calculate the effect of levying a carbon border tax on both embodied emissions and international freight transport in agriculture products on the price of agriculture products consumed by spanish households and bought by different spanish industries our results do not appear to impose too great a burden on the economy as a whole 3 7 over the value of imported agriculture products and 0 02 over total spanish domestic final demand however there might be a significant impact from taxing embodied carbon and transport emissions on some sectors and in terms of a potential change in the origin of imports with chinese and east asian exports into spain being the most affected

the diffusion of clean technologies a review with suggestions for future diffusion analysis abstract this article gives an overview of the literature on clean technology diffusion followed by suggestions for future analysis findings from diffusion analysis are presented in the form of 10 stylised facts helping the reader to see the forest for the trees the overall conclusion is that the diffusion of clean technology same as the diffusion of normal innovations is governed by endogenous mechanism epidemic learning and learning economies and by exogenous mechanisms policy is important for clean technology diffusion but other factors are important too the characteristics of the clean technology absorptive capacities of potential adopters and the age structure of capital it is often overlooked that companies have a choice they can choose between an end of pipe solution a process change adaptation and a change of process substitution this means that the diffusion and evolution of one clean technology will be at the expense of the diffusion of another clean technology something overlooked in studies on clean technology diffusion further research is needed on the influence of public policy on clean technology choice expectations about learning economies and prices adjustment costs network externalities and complementary innovations on clean technology adoption choices

the effect of within sector upstream and downstream energy taxes on innovation and productivity the aim of this paper is to investigate the effect of environmental regulatory stringency on innovation and productivity using a panel of 8 european countries for 13 manufacturing sectors over the years 2001 2007 this research topic falls under the heading of the porter hypothesis ph of which different versions have been tested we consider both the strong and the weak versions of the ph while also adding some peculiar features to the analysis firstly we assess the role played by environmental taxes that is an instrument rarely tested as a factor which can support the ph secondly we analyse not only the effect of environmental taxes within a given sector within sector but also the role played by environmental taxes in upstream and downstream sectors in terms of input output relationships thirdly we test these relationships also indirectly by verifying whether innovation is one of the channels through which higher sectoral productivity can be achieved by imposing tighter environmental regulations our main findings suggest that downstream stringency is the most relevant driver of innovation and productivity while within sector regulations only affect productivity but not innovation moreover the effect of regulations on productivity is mostly direct while the part of the effect mediated by induced innovations as measured by patents is relevant only for what concerns downstream regulations

jealousy and equilibrium overconsumption the idea that the happiness of an individual depends upon the consumption of others is widely viewed as an important feature of our shared social existence recent research in finance has used this idea through consumption externalities to explore asset pricing anomalies consumption externalities potentially break the link between pareto optimality and competitive equilibria and open the door for beneficial government intervention e g lars ljungqvist and harald uhlig 2000 in this paper we delineate two effects that a consumption externality may have an increase in aggregate consumption may a raise the marginal utility of individual consumption relative to leisure and or b lower an individual s utility level we refer to a as keeping up with the joneses henceforth kuj following jordi gali 1994 and we refer to b as jealousy jealousy is a distinct concept from kuj under kuj an individual derives greater utility from additional own consumption relative to leisure when others consume more at the same time higher per capita consumption holding fixed individual consumption can trigger either jealousy so that individual utility falls or admiration so that individual utility rises in section i of this paper we show that jealousy implies that the laissez faire equilibrium consumption level is greater than the optimal level whether preferences exhibit kuj is not necessary for this main result intuitively in the presence of jealousy consumption is similar to pollution overpollution exists because individuals do not take into account the cost of polluting on others not because an increase in economywide pollution makes the return to individual polluting higher similarly overconsumption exists because individuals do not take into account the negative effect of own consumption on jealous others things go in the opposite direction when individuals are admiring in section ii we consider a functional form that encompasses several existing models we show that jealousy determines the optimal tax to correct overconsumption and that kuj is mainly important for asset pricing

economic instruments and induced innovation the european policies on end of life vehicles abstract the paper addresses the mechanisms by which specific economic instruments based on the producer responsibility principle prp can influence innovation when environmental policy has impact on very complex industrial subsystems we consider the eu policy on end of life vehicles directive 2000 53 ec on elvs as a representative case study of multiple industry prp instrument dynamic efficiency problems in order to achieve ambitious policy targets on elv recovery recycling reuse interrelated sequences of single innovations in both upstream car making and downstream car recycling recovery should take place we explore the extent to which the introduction of a free take back ftb instrument can influence industrial actors in contributing to innovation paths that are still marked by technological uncertainty evolving capabilities and different cost benefit balances for actors themselves we conclude that differently from static approaches in which the ei and its formulation is neutral with respect to policy effectiveness the dynamic efficiency of eis in elv like problems depends both on where along the production to waste chain and how in terms of net cost allocation the specific incentive is introduced consequently in order to generate a policy desired innovation path the way in which the ei related incentive allocated to a certain industry is transmitted to other industries whether upward or downward along the chain is also relevant disregarding these effects can imply a dissipation of innovation incentives and the generation of regulation induced rents for some actors cannot be ruled out policies based on prp should consider eis in conjunction with enforceable voluntary agreements

the costs of price stability downward nominal wage rigidity in europe in most european countries the prevailing terms of employment including the nominal wage can be changed only by mutual consent this legal feature gives workers a strategic advantage in wage negotiations when employers push for a nominal wage cut the upshot is a long run trade off between inflation and unemployment for low levels of inflation in spite of all agents being rational and with no expectational errors specifically downward nominal wage rigidity and excess unemployment at zero inflation are related to three factors the coverage of collective agreements the legal framework at contract renewal and the strictness of the employment protection legislation for non union workers

economics of technological change and the natural environment how effective are innovations as a remedy for resource scarcity abstract the paper aims to substantiate the importance of endogenous innovations when evaluating the compatibility of natural resource use and economic development it explains that technological change has the potential to compensate for natural resource scarcity diminishing returns to capital poor input substitution and material balance restrictions but is limited by various restrictions like fading returns to innovative investments and rising research costs it also shows how innovative activities are fostered by accurate price signals and research favouring sectoral change the simultaneous effects of increasing technical knowledge decreasing resource inputs and increasing world population largely determine the chances of long run sustainable development consequently future research has to be directed at a more thorough understanding of the mechanisms driving innovations in the presence of natural resource scarcity

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

on reducing the windfall profits in environmental subsidy programs investment subsidies are widely used to induce adoption of new technologies that can lower the marginal cost of reducing emissions to economize on these subsidies governments would like to distinguish between firms that need to receive a subsidy to adopt a new technology and firms that would adopt that technology even without subsidies we show that policies consisting of a menu of emission taxes and investment subsidies can potentially induce firms to self select

feed in tariff vs renewable portfolio standard an empirical test of their relative effectiveness in promoting wind capacity development abstract this paper examines the relative effectiveness of feed in tariff fit and renewable portfolio standard rps in promoting wind capacity development using panel data conservative estimates suggest that on average across countries fit increases total wind capacity more than rps by a magnitude of about 1800 mw when using time variant policy indicators the difference between the two policies increases to nearly 2000 mw roughly 8 of 2009 cumulative capacity in germany as for annual wind capacity since 2005 this paper has found no significant difference between fit and rps it is also found that wind energy development responds to high electricity demand and high oil dependence

carbon taxation prices and welfare in new zealand abstract this paper examines the effects on consumer prices arising from imposing a carbon tax in new zealand using information about inter industry transactions and the use of fossil fuels by industries the welfare effects of the carbon tax are examined for a range of different household types finally overall measures of inequality are reported

the impact of environmental regulation shadow economy and corruption on environmental quality theory and empirical evidence from china abstract mounting environmental pressures led china to focus on the effectiveness of the environmental regulation to control pollution since the shadow economy or underground economic activities that are not included in official statistics accounts for an increasing fraction of china s economy its impacts on environmental quality should be carefully evaluated in this study the main research questions are as follows 1 what is the extent of the effect of environmental regulation on environmental quality and 2 what are the factors that influence the impact of environmental regulation on environmental pollution a theoretical model is developed to explain the relationship among the environmental regulation shadow economy and environmental quality in china an empirical analysis is conducted to test the three propositions of the model thereby examining the explanatory power of the theoretical model concretely using panel data from 30 provinces for the period of 1998 2012 the generalized method of moments gmm method is employed to control for potential endogeneity and introduce dynamic effects the estimation results indicate that stringent environmental regulation and the level of the shadow economy are both positively related to china s environmental pollution however the results also indicate that tighter environmental control would help reduce pollution at a given level of the shadow economy moreover an increase in the proportion of corrupt officials may weaken the environmental regulation which would consequently lead to the increase in illegal production and total pollutant emissions besides many economic and social factors may also affect the environmental quality for instance the development of secondary industry contributes toward an increase in pollutant emissions however increased research and development r d spending on eco friendly industrial operations can help to reduce pollution

downward nominal wage rigidity in canada evidence against a greasing effect la rigidite a la baisse des salaires nominaux rbsn a souvent ete invoquee pour justifier le ciblage d un taux d inflation positif il est communement admis qu une inflation positive peut en exercant une pression a la baisse sur les salaires reels huiler les rouages du marche du travail et faciliter les ajustements de ce marche durant les recessions

the energy efficiency gap what does it mean abstract as renewed attention has been given by policy makers to energy conservation issues it has frequently been asserted that an energy efficiency gap exists between actual and optimal energy use the critical questions is how to define the optimal level of energy efficiency this paper seeks to disentangle some confusing strands of argument that are frequently brought to bear on this question by identifying the major conceptual issues that determine the set of feasible answers we identify five separate and distinct notions of optimality the economists economic potential the technologists economic potential hypothetical potential the narrow social optimum and the true social optimum each of these has associated with it a corresponding definition of the energy efficiency gap our analysis demonstrates that necessary preconditions for identifying the right measure of the energy efficiency gap include understanding and disentangling market failure and non market failure explanations for the gradual diffusion of energy efficient technologies

community pressure and clean technology in the informal sector an econometric analysis of the adoption of propane by traditional mexican brickmakers abstract in many developing countries the informal sector comprised of low technology unlicensed micro enterprises is a major source of pollution environmental management in this sector is exceptionally challenging though clean technologies offer a means of mitigating the problem to our knowledge there has been no rigorous empirical research on why informal or even small scale firms do and do not adopt them as a first step toward filling this gap this paper presents the results of an econometric analysis of the diffusion of propane among informal traditional brickmakers in cd juarez mexico a leading source of air pollution owing to their reliance on cheap highly polluting fuels such as used tires and scrap wood the two key policy implications of our analysis are that 1 it is possible to successfully promote the adoption of a clean technology by intensely competitive informal firms even when the new technology significantly raises variable costs and 2 community pressure applied by competing firms and private sector local organizations can generate incentives for adoption

diffusion paths for micro cogeneration using hydrogen in the netherlands we estimate the diffusion of micro cogeneration systems micogen using hydrogen produced from natural gas in the netherlands for the 2000 2050 period on the basis of economical factors the diffusion is important for the transition to a hydrogen economy based on renewables with natural gas paving the way for hydrogen from renewables for three scenarios full diffusion takes place in the period 2020 2050 the most important factors behind the diffusion are 1 growing energy demand resulting in lower hydrogen costs and higher energy costs in the reference case and 2 lower costs of micogen stemming from learning economies the model is advanced by considering all costs components for heterogeneous users which have been calculated for the entire diffusion period it is the first threshold diffusion model that is being applied to the diffusion of technological clusters involving new or adapted infrastructures 2007 elsevier ltd all rights reserved

environmental innovations and firm profitability unmasking the porter hypothesis we examine impacts of different types of environmental innovations on firm profits following porter s sci am 264 4 168 1991 hypothesis that environmental regulation can improve firms competitiveness we distinguish between regulation induced and voluntary environmental innovations we find that innovations which do not improve firms resource efficiency do not provide positive returns to profitability however innovations that increase a firm s resource efficiency in terms of material or energy consumption per unit of output have a positive impact on profitability this positive result holds for both regulation induced and voluntary innovations although the effect is greater for regulation driven innovation we conclude that the porter hypothesis does not hold in general for its strong version but depends on the type of environmental innovation our findings rest on firm level data from the german part of the community innovation survey 2008 cis 2008

empirics on the long run effects of building energy codes in the housing market we study the effectiveness of building energy codes taking a long run perspective the focus is on regulation s impact on energy demand in both high and low quality residences in other words the diffusion and the entry of green buildings in the housing market we develop a measure for regulation intensity and apply this to a panel error correction regression model for energy requirements of a large sample of german apartment houses built between 1950 and 2005 we show that regulation is effective in saving energy in particular regulation pushes investors in the low quality housing market segment toward the technological frontier indirectly it also affects the high quality segment jel q41 r52

prices vs quantities technology choice uncertainty and welfare technological improvements have proven essential in mitigating environmental problems such as climate change depletion of the ozone layer and acid rain while it is well known that price and quantity based regulatory instruments provide different investment levels the effects on the choice between different technologies have received scant attention this paper expands on the prices versus quantities literature by investigating firms technology choice in the face of demand and supply side uncertainty i show that the regulator can not design tradable emissions permits and an emissions tax such that the two regimes are equivalent even in terms of expected values moreover a tax encourages the most flexible abatement technology if and only if stochastic costs and the equilibrium permit price have sufficiently strong positive covariance compared with the variance in consumer demand for the good produced finally the firms technology choices are socially optimal under tradable emissions permits but not under an emissions tax