defining the rebound effect abstract this paper gives rigorous definitions of the rebound effect not only in the well described single commodity case khazzoom 1980 the energy journal 1 4 21 40 but also for a multiple commodity case it is shown that the familiar laws for the single case do not hold for the multiple case the paper describes the state of the art of empirical estimation of the rebound effect with special focus on the estimates done for the netherlands we conclude that according to every definition empirical evidence shows that the re is probably small between 0 and 15

buyer search costs and endogenous product design buyer search costs for price are changing in many markets through a model of buyer and seller behavior i consider the effects of changing search costs on prices both when product differentiation is fixed and when it is endogenously determined in equilibrium if firms cannot change product design lower buyer search costs for price lead to increased price competition however if product design is a decision variable lower search costs for price may also lead to higher product differentiation which decreases price competition in this case the overall effect of lower buyer search costs for price may even be higher prices lower social welfare and higher industry profits the result is especially interesting because recent technological changes such as internet shopping can affect the market structure through lowering buyer search costs

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

on the frequency of large stock returns putting booms and busts into perspective textabstractnumerous articles have investigated the distribution of share prices and find that the returns are fat tailed nevertheless there is still controversy about the amount of probability mass in the tails and hence about the most appropriate distribution to use in modeling returns this controversy has proven hard to resolve as the alternatives are non nested we employ extreme value theory focusing exclusively on the larger observations in order to assess the tail shape within a unified framework we find that at least the first two moments exist this enables one to generate robust probabilities on large returns which put the recent stock market swings into historical perspective

residential energy demand in oecd countries and the role of irreversible efficiency improvements abstract after undergoing substantial changes during a period of high energy prices household energy demand did not rebound in times of declining energy prices as might have been expected hence other factors such as irreversible improvements in technical efficiency must be understood in order to describe both past and future household energy demand in this paper we consider irreversible efficiency improvements as a major reason for the moderate growth in energy demand after the plummeting of the oil price in 1985 we test different econometric models to take into account efficiency indicators the major conclusions of our investigation are i price elasticities are different for rising and falling prices for the latter they are close to zero implying a low rebound effect in the residential sector ii technical efficiency is an important parameter for describing and forecasting energy demand and iii income elasticities turn out to be higher once we incorporate indicators of technological efficiency in the process of estimating energy demand

white certificate schemes economic analysis and interactions with the eu ets this paper examines the economic environmental and distributional impacts of an idealised tradable white certificate twc scheme and shows how the impacts are modified when the scheme operates in parallel with the eu emissions trading scheme eu ets it uses simple graphical techniques to assess whether a twc scheme will increase decrease or have an ambiguous effect on electricity demand wholesale and retail electricity prices carbon emissions and investment in energy efficiency paying particular attention to the interpretation of additionality

search costs and investment in quality in this paper we analyze how lower search costs aect rms incentives to invest in quality we identify two con icting eects on the one hand lower search costs increase incentives to invest in quality by eroding the market share of low quality rms and increasing the market share of high quality rms on the other hand by intensifying price competition lower search costs adversely aect high quality rms more than low quality rms the net eect of a change in the search cost on quality is shown to depend on the initial quality distribution there is a critical value such that if the average quality in the market is initially above this value lower search costs lead to lower quality whereas if the initial quality is below this value lower search cost leads to higher quality we show that our results are consistent with a superstar eect

financial market activity under capital controls lessons from extreme events abstract we investigate the contemporaneous relation between return and transaction volume in distribution tails under the restrictions on transactions due to the capital controls implemented on the athens stock exchange in july 2015 we use bivariate extreme value theory to model the tail dependence structure we show that restrictions on transactions have an impact on the activity of market participants

review of us esco industry market trends an empirical analysis of project data abstract this comprehensive empirical analysis of us energy service company esco industry trends and performance employs two parallel analytical approaches a survey of firms to estimate total industry size and a database of 1500 esco projects from which we report target markets and typical project characteristics energy savings and customer economics we estimate that industry investment for energy efficiency related services reached us 2 billion in 2000 following a decade of strong growth esco activity is concentrated in states with high economic activity and strong policy support typical projects save 150 200 mj m2 year and are cost effective with median benefit cost ratios of 1 6 and 2 1 for institutional and private sector projects the median simple payback time spt is 7 years among institutional customers 3 years is typical in the private sector reliance on dsm incentives has decreased since 1995 preliminary evidence suggests that state enabling policies have boosted the industry in medium sized states escos have proven resilient in the face of restructuring and will probably shift toward selling energy solutions with energy efficiency part of a package we conclude that appropriate policy support both financial and non financial can jump start a viable private sector energy efficiency services industry that targets large institutional and commercial industrial customers

minimal returns and the breakdown of the price volume relation abstract we look at stock market prices and transaction volume on the day of minimal the minimum for that year daily returns from 1885 to 1990 we find that large in absolute terms minimal returns show little correlation with transaction volume

white and green comparison of market based instruments to promote energy efficiency the white and green project completed under the eu save programme reviewed policies and measures to promote energy efficiency which involved analysing the experience with instruments that are already implemented and assessing innovative instruments that are proposed in particular the practicability of using white certificates energy efficiency along the same lines as green certificates renewable energy was explored several of the policies and measures were simulated using technical economic model of the markal family the results show that by 2020 it is possible to increase energy effiency by 15 at no cost without taking externalities into account if externalities are considered an increase of 30 35 with respect to the business as usual scenario is justified the wealth of information obtained through the models and analysis provides a set of recommendations for policy makers including 1 the need for closer co ordination between energy policies and environmental and climate policies 2 the opportunity to establish more ambitious targets for energy efficiency 3 the scope for increased eu co ordination 4 the extension of white certificates to the medium and low energy intensive industries 5 the need to support white certificates with accompanying actions such as running information campaigns promoting energy service companies and providing dedicated credit lines 6 the need to develop similar instruments for transport and 7 the continuing need for energy research and development c 2005 published by elsevier ltd

how much market do market based instruments create an analysis for the case of white certificates in the context of economic instruments for more energy efficiency and climate protection tradable certificates have been investigated for renewable energy and for a number of emissions in contrast tradable energy efficiency or white certificates have only lately been considered as a market based tool to foster energy efficiency as compared to standards and labelling for example theoretically there is little doubt about the advantages in practice however some fundamental problems arise critical issues are the design of an efficient artificial market for white certificates its compatibility with the european emissions trading system the identification of a suitable target group for an energy efficiency obligation and the measurement of energy savings as compared to a reference use of energy we use the theoretical framework of transaction cost economics to elaborate these issues we conclude that transaction costs and investment specificity will restrict markets for white certificates in practise long term contracts rather than spot trade will be the prevailing form of governance for energy efficiency investments

carbon trading in the policy mix the kyoto protocol is stimulating the development of emissions trading schemes at the national and international levels these are being introduced alongside existing policy instruments such as carbon taxes and negotiated agreements leading to complex problems of policy interaction but the topic of policy interaction remains under researched this paper aims to improve understanding of such interactions by examining the conditions under which a cap and trade scheme for carbon dioxide emissions may usefully coexist with carbon energy taxes support mechanisms for renewable electricity and policies to promote energy efficiency the paper argues that each of these instrument combinations may be acceptable provided they contribute to either improving the static or dynamic efficiency of the trading scheme or delivering other valued policy objectives but since the coexisting instruments may raise overall abatement costs while contributing nothing further to emission reductions the objectives and trade offs within the policy mix must be explicit

the rebound effect microeconomic definitions limitations and extensions abstract the rebound effect results in part from an increased consumption of energy services following an improvement in the technical efficiency of delivering those services this increased consumption offsets the energy savings that may otherwise be achieved if the rebound effect is sufficiently large it may undermine the rationale for policy measures to encourage energy efficiency the nature and magnitude of the rebound effect is the focus of long running dispute with energy economics this paper brings together previous theoretical work to provide a rigorous definition of the rebound effect to clarify key conceptual issues and to highlight the potential consequences of various assumptions for empirical estimates of the effect the focus is on the direct rebound effect for a single energy service indirect and economy wide rebound effects are not discussed beginning with khazzoom s original definition of the rebound effect we expose the limitations of three simplifying assumptions on which this definition is based first we argue that capital costs form an important part of the total cost of providing energy services and that empirical studies that estimate rebound effects from variations in energy prices are prone to bias second we argue that energy efficiency should be treated as an endogenous variable and that empirical estimates of the rebound effect may need to apply a simultaneous equation model to capture the joint determination of key variables third we explore the implications of the opportunity costs of time in the production of energy services and highlight the consequences for energy use of improved time efficiency the influence of time costs on the rebound effect and the existence of a parallel rebound effect with respect to time each of these considerations serves to highlight the difficulties in obtaining reliable estimates of the rebound effect and the different factors that need to be controlled for we discuss the implications of these findings for econometric studies and argue that several existing studies may overestimate the magnitude of the effect

costs and benefits of energy efficiency obligations a review of european programmes abstract the economics of energy efficiency programmes have been subject to considerable academic debate lasting well over three decades now in this paper we contribute to this debate by reviewing the costs and benefits of a specific type of policy instrument that recently gained significant traction in europe energy efficiency obligations eeos following the introduction of the eu energy efficiency directive in 2012 the number of eeos in europe has grown from five schemes to now 16 eeos in operation or planned across the eu there is an emerging body of evidence on the costs and benefits of energy efficiency obligations covering a wider range of eu countries which offers an opportunity to improve our understanding of the economics of energy efficiency obligations in this paper we draw on this new data and provide a a comparative analysis of the costs and benefits of eeos in a number of european countries b discuss the uncertainties and challenges around calculating the costs and benefits of energy efficiency obligations and c provide a categorisation of the multiple benefits often overlooked in cost benefit analyses

an application of extreme value theory to cryptocurrencies we study the tail behaviour of the returns of five major cryptocurrencies by employing an extreme value analysis and estimating value at risk and expected shortfall as tail risk measures we find that bitcoin cash is the riskiest while bitcoin and litecoin are the least risky cryptocurrencies

stock prices and volume the authors undertake a comprehensive investigation of price and volume co movement using daily new york stock exchange data from 1928 to 1987 they adjust the data to take into account well known calendar effects and long run trends to describe the process they use a seminonparametric estimate of the joint density of current price change and volume conditional on past price changes and volume four empirical regularities are found 1 positive correlation between conditional volatility and volume 2 large price movements are followed by high volume 3 conditioning on lagged volume substantially attenuates the leverage effect and 4 after conditioning on lagged volume there is a positive risk return relation article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

competition and the incentive to produce high quality previous literature indicates that when quality is a choice variable firms have an incentive to produce high quality to maintain their reputations with consumers the strategic interaction among firms and competition for market share is not considered this paper finds that when firms compete for market share perfect equilibria in which firms produce high quality goods need not exist competition for customers can eliminate the price premium needed to induce firms to maintain a reputation for high quality production in this case economists and policy analysts should pay greater attention to the interaction among firms and the institutions such as professional associations that structure interfirm relations when considering whether firms have an incentive to produce high quality goods

interactions between the power and green certificate markets abstract the current trend of liberalising the power markets is combined with ambitious deployment plans for power production based on renewable energy supplies a new policy scheme to ensure this extension has been developed in the form of a green certificate system with a politically determined target of deployment in such a system producers of renewably based electricity receive tradable certificates in proportion to the electricity they produce the producer can thereby sell these certificates and receive additional revenue apart from the power price this paper studies the price and consumption effects of such a system with a simple model we show that the effects are ambiguous this ambiguity is caused by the interaction between the two markets therefore the green certificate system is difficult to manage if the state has parallel energy targets such as a desired deployment of renewably based energy and a stabilisation or reduction of the energy consumption in addition this complicates the regulation through a deployment target of renewably based power production as the regulator has to be aware of the different effects which follow a specific target until now these effects have not been considered in the analyses of the green certificate system when introducing the system even though it might have considerable consequences for the success of the system

reputation and competition this paper shows how competition generates reputation building behavior in repeated interactions when the product quality observed by consumers is a noisy signal of firms effort level there are two types of firms and good firms try to distinguish themselves from bad firms although consumers get convinced that firms which are repeatedly successful in providing high quality are good firms competition endogenously generates the outside option inducing disappointed consumers to leave firms this threat of exit induces good firms to choose high effort allowing good reputations to be valuable but its uncompromising execution forces good firms out of the market jel c7 d8

an ex ante evaluation of a white certificates scheme in the netherlands a case study for the household sector increased efficiency of energy demand is generally recognized as a very cost effective strategy to reduce energy requirements and the related environmental impacts e g the greenhouse effect in order to improve energy efficiency the use of innovative market mechanisms such as the white certificates whc has been proposed the basic idea underlying this policy instrument is that specific energy saving targets are set for energy suppliers or energy distributors these requirements must be fulfilled in a predefined time frame the focus of this paper is on the effect on energy efficiency improvement on the behavior of the end consumers and the market of energy efficiency measures furthermore we study the possible effects of whc in the netherlands by means of a theoretical analysis and an empirical bottom up model we compare concrete energy efficient technologies in terms of cost effectiveness and energy efficiency improvement in combination with existing dutch policies for energy efficiency improvement in the built environment the contribution of this innovative scheme could enhance the accomplishment of energy efficiency targets in this paper two packages of energy saving measures of a whc scheme are studied for dutch households the costs of these technologies are estimated through the use of different discount rates which imply overcoming of the market barriers through the use of the whc a scheme that includes all available technologies as flexible options appears as a realistic solution and can generate cost effectively up to 180 pj primary energy savings and 4550 m cumulative net savings in the year 2020 at a discount rate of 5 under the precondition that the policy and administrative costs can be kept low

managerial incentives and product market competition are imperfectly competitive leibenstein 1966 claims that there may be a substantial amount of x inefficiency where x inefficiency measures the degree to which actual profits depart from the maximum of profits that could be obtained if all operations in the firm were carried out at minimal costs he offers empirical evidence from case studies showing that the welfare loss due to organizational slack is of an order of magnitude bigger than the welfare loss due to monopolistic price distortions on imperfectly competitive markets these results support the common presumption that increasing competition reduces organizational and in particular managerial slack however this early literature does not offer a theoretical explanation for the link between competition and managerial incentives in particular it ignores the fact that managerial incentives can be affected by the design of an incentive scheme in this paper i derive the optimal incentive scheme for a manager as a function of the competitiveness of the environment in which his firm operates the basic impact of increased competition is that it reduces the profits of a firm this has two effects in the model first if a firm has high costs then the reduction of profits may be sufficient to render the firm unprofitable so the probability that it has to be liquidated goes up this unambiguously induces the manager of the firm to work harder for a cost reduction in order to avoid liquidation and to keep his job second the reduction in profits may affect

imperfect competition and reputational commitment abstract competition can both aid and hinder reputational commitments for quality these are self sustaining depending on future profits after maintaining or deviating from the commitment and on current costs of sustaining it competition can affect these three elements at different rates

the relation between price changes and trading volume a survey this paper reviews previous and current research on the relation between price changes and trading volume in financial markets and makes four contributions first two empiri cal relations are established volume is positively related to the magnitude of the price change and in equity markets to the price change per se second previous theoretical research on the price volume relation is summarized and critiqued and major insights are emphasized third a simple model ofthe price volume relation is proposed that is consis tent with several seemingly unrelated or contradictory observations and fourth several directions for future research are identified

pricing product diversity and search costs a bertrand chamberlin diamond model we study price competition in the presence of search costs and product differentiation the limit cases of the model are the bertrand paradox the diamond paradox and chamberlinian monopolistic competition market prices rise with search costs and decrease with the number of firms prices may initially fall with the degree of product differentiation because more diversity leads to more search and more competition equilibrium diversity rises with search costs while the optimum level falls so entry is excessive the market failure is most pronounced for low preference for variety and high search costs

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

search design and market structure the internet has made consumer search easier with consequences for prices industry structure and the kinds of products oered we explore these conse quences in a rich but tractable model that allows for strategic design choices a polarized market structure results where some rms choose designs aimed at broad based audiences while others target narrow niches such an industry structure can arise even when all rms and consumers are ex ante identical we analyze the eect of reduced search costs and nd results consistent with the reported prevalence of niche goods and the long tail and superstar phe nomena in particular the model suggests that long tail eects arise when there is a wide range of potential designs relative to vertical heterogeneity among rms

tail relation between return and volume in the us stock market an analysis based on extreme value theory abstract using daily data of the s p 500 index from 1950 to 2015 we investigate the relation between return and transaction volume in the statistical distribution tails associated with booms and crashes in the us stock market we use extreme value theory peaks over threshold method to study the extreme dependence between the two variables we show that the extreme correlation between return and volume decreases as we consider larger events in both the left and right distribution tails from an economic viewpoint this paper contributes to a better understanding of the activity of market participants during extreme events our empirical result is consistent with the economic explanation by gennotte and leland 1990 of extreme price movements based on misinterpretation of trades by market participants

a review of optimal energy policy instruments on industrial energy efficiency programs rebound effects and government policies abstract industrial energy efficiency programs ieeps are defined as one of the most popular government policies that aim to reduce energy consumption in industrial energy intensive sectors in this paper we review and classify the most important academic studies that have addressed the environmental and economic aspects of ieeps using a systematic review the classification of energy policy instruments has been developed based on an analytical approach we discuss also the outputs benefits and barriers of ieeps besides a comprehensive argument about the restrictive policies on the rebound effects made after the implementation of these programs the results disclose that china usa and sweden are the most addressed countries on ieeps and their applications in this regard incentive energy policies e g voluntary agreements and subsidies have been applied more than others in the last decade furthermore most of the reviewed studies emphasize energy price reform as an effective practical policy while a few analytical methods can be seen to help policy makers determine the optimal levels of decision variables finally according to the state of the art analysis the authors provide some novel recommendations to improve the performance of ieeps using some restrictive policies on the negative impacts of rebound effects

market liquidity hedging and crashes in the absence of significant news hedging strategies were blamed for the stock market crash of october 1987 but traditional models cannot explain how a relatively small amount of selling could cause so large a price drop the authors develop a rational expectations model in which prices play an important role in shaping expectations markets are much less liquid in their model than in traditional models discontinuities or crashes can occur even with relatively little hedging the model is consistent with theories as disparate as keynes beauty contest insights and thom s catastrophe analysis and suggests means to reduce volatility copyright 1990 by american economic association

true monopolistic competition as a result of imperfect information the paper restates hart s 1985a 1985b definition of large group monopolistic competition distinguishes it from oligopolistic competition and raises the question of whether there are reasonable circumstances that give rise to true monopolistic competition as defined the purpose is to show that consumers imperfect information may create conditions that will turn an otherwise oligopolistic market into a truly monopolistically competitive one