market segmentation and willingness to pay for green electricity among urban residents in china the case of jiangsu province the objective of this study is to identify market segments and estimate the residents willingness to pay wtp for green electricity green e in china for the large scale promotion of energy projects from renewable sources that do not rely solely on energy policies based on an analysis of non use values of green e as well as the application of the contingent valuation cv method and payment card pc introduction technology the average wtp ranges from rmb 7 91 yuan month to 10 30 yuan month approximately us 1 15 1 51 month with an exchange rate of 6 83 yuan us yuan us for urban residents in jiangsu province the current work also explores the differences in demographic variables across varying wtp amounts and the different marginal effects of demographic variables at the same level of wtp the findings reveal that there are significant differences in demographic variables such as level of education household income and location of residence across the population segments moreover the finding that some respondents with high income and higher education prefer higher wtp amounts to lower wtp amounts suggests that green e is a luxury product and consequently a veblen effect exists in certain chinese market segments

resolving differences in willingness to pay and willingness to accept reply gwendolyn c morrison 1997 raises a logical point regarding our experimental test of the divergence between willingness to pay wtp and willingness to accept wta measures of economic value shogren et al 1994 she argues that our design does not provide a true test of the existence of a fundamental endowment effect since we did not control for the potential of a pivoting indifference map daniel kahneman et al 1990 she concludes that even though our ev idence shows that the mean wtp and wta bids for market goods with close substitutes e g candy bars and coffee mugs converge after market experience the endowment effect might still be alive and well albeit at statisti cally insignificant levels

development and application of a cost benefit framework for energy reliability using probabilistic methods in network planning and regulation to enhance social welfare the n 1 rule although electricity is crucial to many activities in developed societies guaranteeing a maximum reliability of supply to end users is extremely costly this situation gives rise to a trade off between the costs and benefits of reliability the dutch government has responded to this trade off by changing the rule stipulating that electricity networks must be able to maintain supply even if one component fails known as the n 1 rule even in maintenance situations this rule was changed by adding the phrase unless the costs exceed the benefits we have developed a cost benefit framework for the implementation and application of this new rule the framework requires input on failure probability the cost of supply interruptions to end users and the cost of investments a case study of the dutch grid shows that the method is indeed practicable and that it is highly unlikely that n 1 during maintenance will enhance welfare in the netherlands therefore including the limitation unless the costs exceed the benefits in the rule has been a sensible policy for the netherlands and would also be a sensible policy for other countries

a dynamic explanation of the willingness to pay and willingness to accept disparity a fundamental tenet in neoclassical theory is the basic independence assumption an individual s preferences are assumed to be measured over levels not changes although most theoretical and applied economic models invoke this assumption a wealth of data from laboratory experiments refutes this premise as systemic empirical disparities have been observed between willingness to pay wtp and willingness to accept wta for the same good e g kahneman knetsch and thaler 1990 with wta often observed to be many times larger than wta in an influential line of work hanemann 1991 argues that the large wta wtp disparities that have been observed in the literature can be reconciled with static neoclassical theory via income and substitution effects i but the empirical evidence to date has not conformed well to hanemann s 1991 or any other neoclassical based model 2 if the observed value disparity is inconsistent with neoclassical explanations and is found to be a fundamental component of individual s preferences as per reference dependent theory kahneman and tversky 1979 tversky and kahneman 1991 then a reevaluation of a good deal of economic analysis is necessary in this article we provide a different explanation for the wta wtp disparity a dynamic theory based on the presence of commitment costs and possibly asymmetric beliefs about market opportunities when the value of a good is uncertain wtp and wta will logically reflect compensation for the possibility of learning that the good has a different value than believed at the time of purchase or sale and the cost associated with reversing the purchase or sale decision in its simplest form our model predicts that with objective symmetric beliefs about market opportunities and with perfect substitutability and no income effects there should be no value disparity intuitively the objective cost of delaying the purchase or alternatively reversing the purchase for prospective buyers is isomorphic to the objective cost of reversing or delaying the sale for prospective sellers this symmetry necessarily leads to wta wtp consistent with the neoclassical paradigm importantly however it is an agent s perception of the delay and reversal costs that motivates behavior if agents behave in a manner consistent with the developing literature on cognitive dissonance and or limited memory it is quite plausible for individuals to display an asymmetric perception of the relative costs of selling later depending upon whether they are placed in the role of a buyer or seller 3 this type of asymmetry alone can yield the systematic value divergences observed in the literature indeed we show that even with only slight asymmetries in beliefs of perceived costs our theory can generate considerable value divergences because the actual divergence will depend upon the interaction of this asymmetry with the degree of value uncertainty time preference and lost value of consumption we explore the predictive power of our theory by examining wta and wtp statements of value from consumers in a competitive marketplace the sportscard market although we do not consider the sportscard marketplace particularly worthy of study in its own right it is useful for our purposes for several reasons first it is a natural setting for an examination of preference structures because it provides a rich pool of subjects making decisions in a familiar environment with uncertainty and future learning about the values of traded goods second we can identify factors that arise endogenously such as market experience and impose the remaining controls necessary to implement a clean experiment to explore whether such factors attenuate the value disparity through the channels predicted by our theory our data are striking in that agents display an asymmetric perception of the relative costs of selling later depending upon whether they are placed in the role of a buyer or seller

environmental pricing of externalities from different sources of electricity generation in chile abstract the rapid increase in electricity demand in chile means a choice must be made between major investments in renewable or non renewable sources for additional production current projects to develop large dams for hydropower in chilean patagonia impose an environmental price by damaging the natural environment on the other hand the increased use of fossil fuels entails an environmental price in terms of air pollution and greenhouse gas emissions contributing to climate change this paper studies the debate on future electricity supply in chile by investigating the preferences of households for a variety of different sources of electricity generation such as fossil fuels large hydropower in chilean patagonia and other renewable energy sources using double bounded dichotomous choice contingent valuation a novel advanced disclosure method and internal consistency test are used to elicit the willingness to pay for less environmentally damaging sources policy results suggest a strong preference for renewable energy sources with higher environmental prices imposed by consumers on electricity generated from fossil fuels than from large dams in chilean patagonia policy results further suggest the possibility of introducing incentives for renewable energy developments that would be supported by consumers through green tariffs or environmental premiums methodological findings suggest that advanced disclosure learning overcomes the problem of internal inconsistency in sb db estimates

quantification of market performance as a function of system security the tight coupling between market and system operations in the restructured environment requires a thorough understanding of the interdependence between the market performance and the way the power systems are operated in particular we need to go beyond the qualitative characterization and to quantify the dependence of the market performance on the system security such studies are typically not performed in today s regional transmission organization or rto structures in this paper we develop a general approach to quantify the monetary impacts of complying with a specified security criterion when the deployment of appropriate preventive and or corrective security control actions is fully taken into account this approach is deployed in the day ahead electricity markets and is based on the emulation of the way the rto currently operates the market and the grid the latter in compliance with the security criterion the proposed approach has a wide range of applications such as comparative market performance assessments of different security criteria and the cost benefit analysis of network improvements to mitigate the market performance impacts of a set of specified contingencies we illustrate the application of the proposed approach on the large scale iso ne system to quantify the monetary impacts associated with changing from the current security criterion to two other criteria using the actual 2005 day ahead data the historical system model and the bids offers submitted with the actual market clearing methodology these studies capture in a meaningful way the impacts of the changes with respect to the current security criterion an important finding of this study is that the economic efficiency of electricity markets need not decrease when the system is operated under a stricter criterion

the microeconomic foundations of measuring bracket creep and other tax changes we derive a measure of the bracket creep induced inflation tax based on an income compensation function that recognizes that consumers substitute among deductible and nondeductible goods as the incentives to consume the goods change over time the measure of the inflation tax is decomposed into a convenient function of marginal tax rates and the change in expenditures on tax deductible goods relative to nondeductible goods that are required to maintain a fixed level of utility tentative estimates suggest that the inflation tax as a percentage of constant utility income during the 1970s averaged about 1 percent per year

the disparity between willingness to accept and willingness to pay measures of value psychologists have long argued that people are much more averse to a loss than attracted to an equivalent gain this behavior termed loss aversion has been formalized by kahneman and tversky 1979 in their reformulation of expected utility theory prospect theory in prospect theory the utility function is replaced by a value function that evaluates changes in income from the current level increases in income are weighted by a relatively small marginal utility decreases in income are weighted by a much larger marginal utility in effect the value function implies that a kink in the relationship between utility and income occurs at the initial income or reference point and that the slope of the utility function for losses in income is steeper than it is for gains in a recent paper knetsch and sinden 1984 report a series of experiments that demonstrate the existence of a large disparity between willingness to accept wta and willingness to pay wtp measures of value they argue that the psychological theory of loss aversion explains this difference economic theory would suggest that individuals who exhibit a large disparity between wta and wtp are perhaps underperceiving the value of gains or overperceiving the value of losses are behaving in an irrational manner and will consequently achieve a lower level of well being than if they behaved in a true utility maximizing manner this would in contrast to loss aversion usually imply near equal values for wta and wtp see willig 1976 further documentation of a larger than expected disparity between wta and wtp has been obtained in surveys asking for the value of a variety of public goods for example cummings brookshire and schulze 1986 document six

electricity outages in ghana are contingent valuation estimates valid african countries experience persistent and serious energy outages but while multiple valuation studies provide estimates of the costs of electricity outages in high income countries evidence is scarce for lower and middle income countries the few studies that assess the value of reliable energy supply rely on the contingent valuation method that is under wide scrutiny this paper aims to provide new estimates of households willingness to pay to reduce electricity outages for ghana and contributes to the debate on the validity of contingent valuation results for energy reliability our results suggest that households are willing to pay ghs 67 17 per month for reliable electricity supply equivalent to 7 of respondents income the results of tests for hypothetical bias wtp wta disparity and income effects suggest that the contingent valuation estimates from this study are robust and can support decision makers in prioritizing energy policies and investments

the costs of electricity interruptions in spain are we sending the right signals one of the objectives of energy security is the uninterrupted physical availability of energy however there is limited information about how much is the cost of energy supply interruptions this information is essential to optimize investment and operating decisions to prevent energy shortages or alternatively to determine the strength of the signals to be sent to the agents so that they may invest accordingly in this paper we estimate the economic impact of an electricity interruption in different sectors and regions of spain although there are several caveats in our analysis we find that in 2008 the cost for the spanish economy of one kwh of electricity not supplied was above 4 even in a conservative scenario which is higher than the signals currently being sent as incentives to avoid these interruptions this might result in an underinvestment in short term energy security particularly when we add the usual risk aversion of most consumers

estimation of the inconvenience cost of a rolling blackout in the residential sector the case of south korea abstract south korea is experiencing a serious imbalance in electricity supply and demand which caused a blackout in 2011 the korean government has planned to perform a rolling blackout to prevent large scale blackouts when the electricity supply reserve margin reaches less than 1 million kw this study attempts to estimate the inconvenience cost of household customers from a rolling blackout by using survey data to this end we apply a contingent valuation method cvm to measure their willingness to pay wtp in order to avoid a rolling blackout i e the suspension of electricity supply in this study we estimate the inconvenience costs stemming from both an unannounced and an announced rolling blackout as a result we find that the inconvenience cost of a sudden rolling blackout is estimated at 3900 67 krw 3 56 usd per month per household while that of an announced rolling blackout stands at 3102 95 krw 2 83 usd this difference in costs shows that people place value in receiving prior notice of a blackout and that inconvenience costs of between 166 0 billion krw 151 6 million usd and 174 3 billion krw 159 2 million usd per year can be reduced nationwide by giving households advance notice of a planned rolling blackout

estimating the economic costs of electricity deficit using input output analysis the case of brazil the objective of this article is to present a methodology to estimate the marginal cost of electric energy deficit in the long term using input output i o analysis we obtain a deficit marginal cost dmc curve that is not limited to a small number of levels such as the curve used currently in brazil which is limited to four levels the marginal cost of deficit is an important exogenous parameter used in the model s chain to calculate the operation s marginal cost and short term market pricing the electric energy deficit is a temporary lack of continuity in meeting demand which is usually predictable and involves prior notice to the consumer the cause of this deficit may be a lack of investment and or low water inflows that impact the production of hydroelectric power plants in this study the marginal cost of the deficit is obtained from restrictions on the provision of electricity for productive sectors and by calculating the corresponding impact on the gross domestic product the proposed metho

developing marginal costs for real time pricing the authors describe an approach for forecasting day ahead hourly costs for real time pricing of electricity marginal costs have two components marginal operating costs and marginal outage costs the approach for estimating marginal operating costs is a modification of techniques developed for security constrained dispatch the approach for marginal outage costs involves estimating the economic damages associated with outages as well as the load related probability that an outage will occur data problems and procedures required for model validation are also addressed

examining the benefits of load shedding strategies using a rolling horizon stochastic mixed complementarity equilibrium model abstract as a result of government policies increasing the amount of electricity generated from fluctuating renewable sources in many countries the requirement for flexibility in the corresponding electricity systems increases on the demand side load shedding is one demand response mechanism contributing to an increased flexibility traditionally load shedding was based on rather static or rotational strategies whereby the system operator chooses the consumers for load shedding however ongoing technological developments provide the basis for smarter and more efficient load shedding strategies we therefore examine the costs and strategies associated with such mechanisms by modelling an electricity market with different types of generators and consumers some consumers provide flexibility through load shedding only while others additionally have the ability to generate their own electricity focussing on the impacts of how and to whom consumers with own generation ability can supply electricity the presence of market power and generator uncertainty we propose a rolling horizon stochastic mixed complementarity equilibrium model where the individual optimisation problems of each player are solved simultaneously and in equilibrium we find that a non static strategy reduces consumer costs while allowing consumers to provide own generation to the whole market results in minimal benefits the presence of market power was found to increase costs to consumers

choice experiment study on the willingness to pay to improve electricity services abstract modern forms of energy are an important vehicle towards poverty alleviation in rural areas of developing countries most developing countries households rely heavily on wood fuel which impacts on their health and socio economic status to ease such a dependency other modern forms of energy namely electricity need to be provided however the quality of the electricity service namely reliability is an important factor in reducing this dependency this paper discusses a choice experiment valuation study conducted among electrified rural households located in kisumu kenya in which the willingness to pay wtp to avoid power outages or blackouts was estimated a mixed logit estimation was applied to identify the various socio economic and demographic characteristics which determine preferences in reducing power outages among a household s users in conclusion several of the socio economic and demographic characteristics outlined in this paper were identified and can assist service differentiation to accommodate the diverse households preferences towards the improvement of the electricity service

the value of supply security the costs of power outages to austrian households firms and the public sector abstract this paper presents a model for assessing economic losses caused by electricity cuts as well as willingness to pay to avoid these power outages as an approximation to the value of supply security the economic effects for simulated power cuts from 1 to 48 h which take the affected provinces the day of the week and the time of day into consideration can be calculated using the assessment tool apostel the costs due to power cuts are computed separately for all sectors of the economy and for households the average value of lost load for austrian households and non household consumers in the case of a power cut of 1 h on a summer workday morning was calculated to be 17 1 per kwh of electricity not supplied

outage costs in chilean industry this paper estimates the cost of energy shortages to chilean industry the information was obtained from a sample survey carried out shortly after the 1989 electricity restriction the results obtained show that a 10 one month equiproportional restriction involves an average net outage cost of us 7 7 kw h 1 in the same scenario the average outage cost drops to us 3 2 kw h 1 when a limited selective restriction is applied we show that under current legislation the outage cost in fact lies between the costs of an equiproportional and a selective restriction however subtle modifications to legislation would make it possible to allocate the scarce supply efficiently

income taxation labor supply and the theory of income based cost of living indices abstract this paper derives theoretically exact formulas for income and expenditure based cost of living indices that are implied by a model of utility maximization in the presence of taxation and a goods leisure decision the derived income based cost of living indices not only allow for substitutions among goods and leisure as the incentives to consume them change as do the expenditure based indices but also explicitly incorporate the effects of bracket creep and the tax deductibility of leisure into the value of the indices numerical estimates of three income based measures of the cost of living suggest that bracket creep eroded substantially the purchasing power of u s households during the 1970s

the gross earnings deflator in many western countries it is felt that it is desirable to switch the tax burden somewhat from direct to indirect taxation proposals to introduce a value added tax vat in substitution for income based taxes have been widely canvassed in for example the united states australia and new zealand a major obstacle to the implementation of these schemes is concern for the effect of such a switch on price indices in the united states the treatment of the value added tax in official index numbers especially the consumer price index might be an important issue were the tax to be adopted here aaron i98i p i 3 in new zealand the task force is aware that a shift from direct to indirect taxation is bound to have effects on prices and incomes these effects could be inflationary in immediate impact and perhaps induce continuing effects mccaw i982 para 3 8 since an index should not in itself be an objective of economic policy such concern may seem absurd however both casual empiricism and the specification of most empirical models of wage determination suggest that past movements in price indices influence the level of wage settlements it follows that a change in the tax structure may have inflationary implications beyond its direct effect on price levels the reason for this is that price indices are used in wage negotiations in an inappropriate way a consumer price index measures the change in net money expenditure required to maintain the purchasing power of that expenditure wage negotiations however are concerned with gross incomes the relevant benchmark against which movements in real wages are to be measured is not the purchasing power of net expenditure but the purchasing power of gross income in britain in i 979 a conservative government was elected with a policy of implementing a major shiftfrom direct to indirect taxation they raised the standard rate of vat from 8 to i5 and made compensating changes to income tax whose net effect was to leave the tax burden on the majority of the population virtually unchanged kay and morris ig79 a the shift was estimated to raise the retail price index rpi by approximately 4 this led to political criticism of the use of the rpi in wage negotiations and to the publication of a new official index the tax and prices index tpi the basic principle behind such an index is simple enough while a measure such as the rpi asks the question what increase in money expenditure is required to enable a household to continue buying a representative bundle of goods the tpi asks what increase in gross income is required to enable a household to continue buying a representative bundle of goods however the realisation of an index of this type raises a number of difficulties in particular 357

optimal electricity supply reliability using customer shortage costs abstract this paper describes an economic cost benefit method for determining the optimal power system capacity and reliability of electricity supply using customer shortage costs the approach is based upon identifying a system plan that simultaneously considers cost of service as well as value of service and maximizes the net economic benefits taking into account the interdependence between electricity reliability price and demand in contrast to the existing literature on this subject which considers only customer outage costs this paper argues that it is the related but considerably broader notion of customer shortage cost that is more relevant in the context of optimizing the reliability of electricity supply the paper develops a method for estimating shortage costs and sketches an integrated framework for optimizing reliability using such costs

investment planning for hydro thermal power system expansion stochastic programming employing the dantzig wolfe decomposition principle this paper presents an application of the dantzig wolfe decomposition principle to the problem of investment planning in the electric power sector the formulation of the capacity planning problem incorporates uncertainties in long term load growth and in fuel supply availability in addition the formulation permits the inclusion of such demand side investment decisions as conservation as well as conventional and renewable supply investments and it allows flexibility in modeling system reliability reliability targets can be incorporated as constraints or reliability can be optimized by minimizing customer outage costs in addition to investment costs and operating costs results of an application to the pacific northwest involving problem sizes up to 30 000 rows and 54 000 columns are reported

the evolution of price elasticity of electricity demand in south africa a kalman filter application abstract in south africa the electricity mismatch of supply and demand has been of major concern additional to past problems the 2008 electricity crisis made the solution crucial after its damaging consequences to the economy the disagreement on the need and consequences of the continuous electricity price hikes worsens the situation to contribute to the recent electricity debate this paper proposes a time varying price elasticity of demand for electricity the sensitivity of electricity consumption to price fluctuations changes throughout the years the main purpose of this study is the estimation of the price elasticity of electricity in south africa during the period 1980 2005 by employing an advanced econometric technique the kalman filter apart from the decreasing effect of electricity prices to consumption 71 8 in the 1990s and 94 5 in the 2000s in average our results conclude to an important finding the higher the prices for example in the 1980s the higher the sensitivity of consumers to price fluctuations thus further increases of the electricity prices may lead to changes in the behaviour of electricity consumers focusing their efforts on improving their efficiency levels by introducing demand side management techniques or even turning to other sources of cheaper energy

value of service reliability the authors present the value of service vos reliability evaluation approach which explicitly incorporates into the planning process customer choices regarding reliability worth and service costs using the least cost planning framework and taking advantage of the recent advances in the quantification of outage costs this approach determines the optimal level of reliability for the utility and its customers the approach considers system operational measures the so called emergency actions that the operators invoke in times of dwindling reserves information on customer outage costs associated with such actions is incorporated using a probabilistic framework this approach permits utilities to plan for levels of reliability commensurate with the customers willingness to pay the application of this methodology to planning problems is discussed numerical results for a large utility are presented

role of targeted policies in mainstreaming renewable energy in a resource constrained electricity system a case study of karnataka electricity system in india india is aggressively pursuing its renewable energy capacity expansion goals targeted policies such as feed in tariff fit renewable purchase obligation rpo and renewable energy certificate rec are introduced to stimulate renewable energy capacity expansion as well as generation currently indian power utilities treat rpo targets as a cost burden and therefore there is prevalence of non compliance even other policies such as fit and recs in their present form have failed to influence increase in renewable electricity supply this has lead us to raise an important question whether these policies are adequate for building a cost effective renewable energy based low carbon electricity system for india in this paper we discuss the impact of above targeted policies in increasing the share of renewable electricity generation in the case of karnataka state electricity system various scenarios are developed and analysed using mixed integer programming model to study the impacts the results suggest that optimally managed fit and rec schemes can provide opportunities for utilities to benefit from reduced costs overall the above policies are inadequate and introduction of market based incentives which expand the scope of trading in renewable energy certificates are essential to achieve the desired objectives

sustainability and the anchoring of capital negotiations surrounding two major urban projects in switzerland theurillat t and crevoisier o sustainability and the anchoring of capital negotiations surrounding two major urban projects in switzerland regional studies this article deals with the anchoring of mobile financial capital in the city and urban sustainability illustrated by a case study in the swiss context it develops the theory that new forms of negotiation are appearing around urban projects development construction firms are playing a central role they are capable of evaluating and translating the multiple dimensions of a project and certain sustainability challenges into financial terms in a way that permits the anchoring of capital in the city in parallel the issue of sustainability depends greatly on the capacity of the local actors to negotiate with the promoters of urban projects

what s to know about hypothetical bias in stated preference valuation studies abstract hypothetical bias arises in stated preference valuation studies when respondents report a willingness to pay wtp that exceeds what they actually pay using their own money in laboratory or field experiments although this bias is not found in all stated preference surveys hypothetical wtp typically exceeds the actual value by a factor of two to three unfortunately there is no widely accepted general theory of respondent behaviour that explains hypothetical bias therefore two meta analyses are reviewed to test current hypotheses regarding the causes of this overstatement of wtp and the associated recommendations to mitigate the bias suggestions for future research are made including the development of a general theory

optimal blackouts empirical results on reducing the social cost of electricity outages through efficient regional rationing abstract the demand and supply of electricity must always balance if supply falls short of demand then price increases or voluntary demand reductions might help to maintain the balance in the system should these prove insufficient then rationing is necessary rationing means interrupting the electricity delivery to certain areas or specific electricity users in order to preserve system stability since the cost of an interruption differs among electricity users the social cost of different rationing mechanisms varies this paper explores the cost difference between efficient regional rationing minimizing social costs by rationing regions with low costs first and random rationing not taking into account social costs for this the value of lost load calculations of de nooij et al de nooij m bijvoet c c koopmans c c 2007 the value of supply security the costs of power interruptions economic input for damage reduction and investment in networks energy economics 29 2 277 295 are refined for the netherlands it is shown that efficient rationing can reduce social costs by 42 to 93

climate change hydro dependency and the african dam boom summary we examine africa s increasing reliance on hydropower in light of climate change induced variations in rainfall and the potential power outages that may result we use a continent wide riverflow model and ippc climate change scenarios and show that current plans for african dam building are fairly well matched with river flow predictions so that fears that international donors and national governments are making a series of expensive and environmentally damaging investments may be overstated however predictions of an increase in extreme events and reduced rainfall for certain countries mean there are still viability concerns for certain planned hydropower investments

a differential measure of the real wage index abstract in this paper we derive an approximation of the real wage index that does not require the estimation of preferences the major advantage of this approach is that the measure is extremely easy to compute and provides a first order approximation of the rate of change in the real wage index

energy poverty in rural bangladesh energy poverty is a well established concept among energy and development specialists international development organizations frequently cite energy poverty alleviation as a necessary condition to reduce income poverty several approaches used to measure energy poverty over the past 20 years have defined the energy poverty line as the minimum quantity of physical energy needed to perform such basic tasks as cooking and lighting this paper uses a demand based approach to define the energy poverty line as the threshold point at which energy consumption begins to rise with increases in household income at or below this threshold point households consume a bare minimum level of energy and should be considered energy poor this approach was applied using cross sectional data from a comprehensive 2004 household survey representative of rural bangladesh the findings suggest that some 58 percent of rural households in bangladesh are energy poor versus 45 percent that are income poor the findings also suggest that policies to support rural electrification and greater use of improved biomass stoves might play a significant role in reducing energy poverty

improving electricity supply security in ghana the potential of renewable energy for decades ghana s economy has been fuelled by abundant inexpensive hydropower as a developing economy ghana s electricity demand has long been relatively low though rising in recent times due to increasing economic growth urbanization and industrial activities however the rapid demand growth as well as periodic hydrological shocks leaves the country increasingly reliant on expensive oil and gas based generation power plants with a resultant drain on the national economy the main electricity generation company the volta river authority is not able to generate enough electricity for all the demand sectors the electricity supply demand margins the difference between peak demand and available supply of the country fall short of the recommended engineering practice and thus presents a high supply security risk the country has been experiencing an increase in the frequency of power cuts over the last ten years it is clear that ghana will have to expand and diversify its generation capacity in order to improve supply security this paper provides a review of the assessed potential renewable energy resources their current exploitation status and their potential contribution to the electricity supply of the country the paper also presents the barriers to their utilization and the existing policy and regulatory instruments to overcome those barriers plus the current and expected future impacts of these instruments the results show that ghana has several res such as wind solar pv mini hydro and modern biomass that can be exploited for electricity production while their exploitation for electricity generation is currently very low providing just 0 13 of the country s generation the review shows a great potential for res generation to increase substantially over the next decade looking at the government commitment and legal frameworks that are being put in place

universal health insurance in the clinton plan coverage as a tax financed public good the financing arrangements embodied in the clinton health reform plan involve some important differences in the way in which public goods are usually financed the subsidies to small low wage firms mandated to provide benefits distort markets in both labor and products and offer incentives for the creation of small firms in addition the financing scheme implicitly envisions a head tax on families at modest income levels but offers a possible rationale for it nevertheless the main reason for many of the financing features appears to be an attempt to hold down the apparent budgetary cost of universal coverage

the value of continuous power supply for flemish households abstract this paper estimates the willingness to pay accept wtp wta of flemish households for continuous power supply based on a stated preference approach the data were collected via a choice experiment and were then used to estimate a main effects conditional logit model and a random parameter logit model with interaction effects and correlated preferences power outages are characterized by 6 attributes annual frequency duration peak or off peak announced or unannounced winter or summer and invoice impact all estimates have the expected sign the results are used to assess the marginal wtp wta for each of these attributes overall the outcome suggests that flemish households have heterogeneous preferences regarding power outage attributes and that due to a status quo bias only a relatively small share of them is willing to switch to a lower reliability level if this would be compensated by a bill discount

energy for sustainable development a case of developing countries abstract today there are 1 4 billion people around the world that lack access to electricity some 85 of them in rural areas without additional dedicated policies by 2030 the number of people drops but only to 1 2 billion some 15 of the world s population still lack access the majority of them living in sub saharan africa the number of people relying on the traditional use of biomass is projected to rise from 2 7 billion today to 2 8 billion in 2030 addressing these inequities depends upon international recognition that the projected situation is intolerable a commitment to effect the necessary change and setting targets and indicators to monitor progress a new financial institutional and technological framework is required as is capacity building in order to dramatically scale up access to modern energy services at the local and regional levels in this paper we discussed the energy situation of the developing countries for sustainable development

optimal production with uncertain interruptions in the supply of electricity abstract in this paper we develop a model to measure expected electricity outage costs in the industrial and commercial sectors four sources contribute to the costs of outage in these sectors foregone profits output possible reduction in productivity due to the outage damage to materials and payments to labor during the outage the beginning and duration of the electricity outage are random variables with known distribution functions thus the business customer maximizes his expected profits taking into account his ability or lack of ability to respond to the random electricity outage the model is applied assuming a quadratic production function to eleven industrial branches in israel the estimates indicate a large variation in customer preferences for reliability

measuring the economic value of demand side and supply resources in integrated resource planning models when comparing the economics of alternative portfolios of supply and demand side resources utility planners should consider not only costs but also effects upon the benefits or value that electricity consumers receive a method for including such effects in comprehensive resource planning models is presented this method considers the value impacts of electric rate changes takeback of energy savings in conservation programs and increases in energy services provided by load building or valley filling programs in general the method rewards resource portfolios that cause rates to move closer to marginal cost or increase the energy services provided applications of a net value objective in several resource planning models are summarized they confirm that optimizing net value can yield different resource portfolios than minimizing cost

an estimate of the value of lost load for ireland this paper estimates the value of short term lost load in the all island electricity market which includes the republic of ireland and northern ireland the value of lost load voll is the average willingness of electricity consumers to pay to avoid an additional period without power voll is also known as the value of security of electricity supply and is inferred using a production function approach detailed electricity use data for the republic of ireland allows us to estimate the value of lost load by time of day time of week and type of user we find that the value of lost load is highest in the residential sector in both the republic of ireland and northern ireland our results can be used to advise policy decisions in the case of supply outages and to encourage optimum supply security in the context of this study short term is taken to be a matter of hours rather than days or weeks

economic costs of electricity supply interruptions us and foreign experience abstract this paper investigates the costs of interruptions in electricity service to customers this information is a key input in planning power system reliability using an economic cost benefit approach the paper reviews the literature from the perspective of identifying alternate methodological approaches used their strengths and weaknesses and potential for bias it presents and compares outage cost estimates found in the literature on a common denominator basis it attempts to explain the sources of the wide range of variation observed in different study estimates and it identifies the need for further work on this important topic

power shortages in developing countries impacts and policy implications abstract this paper is concerned with the short and long run economic impacts of power supply inadequacy in developing countries the paper provides an overview of the methodology for assessing the economic costs of power shortages and presents monetary estimates of some components of these costs for several developing countries particularly india and pakistan the final section discusses the policy implications of the problem including the need for significant changes in investment planning and resource mobilization strategies efficiency improvements pricing reforms and the integration of public and private power suppliers

preference based indices with subsidized commodities and income dependent prices abstract the user cost of publicly provided services is sometimes income dependent high income earners pay more a true cost of living index which includes income dependent prices is suggested it is shown that the corresponding laspeyre index does not only exceed the true index but it exceeds it by no less than in the case of no income dependent price

does it matter when a power outage occurs a choice experiment study on the willingness to pay to avoid power outages using a choice experiment survey the marginal willingness to pay wtp among swedish households for reductions in power outages is estimated the results from the random parameter logit estimation indicate that the marginal wtp increases with the duration of the outages and is higher if the outages occur during weekends and during winter months moreover the random parameter logit model allows us to estimate a sample distribution of wtp and we find a significant unobserved heterogeneity in some of the outage attributes given that households have negative welfare effects from outages it is important that policy makers consider these negative impacts on household utility when regulating the swedish electricity market

the willingness to pay by households for improved reliability of electricity service in north cyprus abstract this research examines households willingness to pay wtp for an improved electricity service households wtp is estimated using the payment ladder contingent valuation cv data from 350 in person interviews in north cyprus in order to avoid the cost of outages households are willing to incur a 13 8 increase in their monthly electricity bill a cost benefit analysis cba indicates that the annualized economic benefits of improved reliability of the electricity service would be approximately usd 35 6 million for the residential sector this figure is more than enough to finance the investments needed to completely eradicate any electricity outages in addition the fuel savings from substituting the generation of the new plants for the old plants would yield about usd 32 9 million per year in fuel savings hence a change from the current low reliability policy to one of providing a high quality service would yield an economic net present value to the residents of north cyprus of twice the investment costs or usd 173 3 million within five years

flexible strategies for load demand management using dynamic pricing the need for and potential role of flexible pricing options which offer an efficient means for achieving a utility s load demand management objectives are discussed the focus is on dynamic tariffs by incorporating real time features within one or more key parameters of the tariff such pricing options can be tailored to offer the degree of flexibility that is necessary and cost effective for achieving the given demand management objective s

willingness to pay and willingness to accept how much can they differ comment i agree with the point made by edoh y amiran and daniel a hagen 2003 that there can be a substantial or even infinite divergence between the wta and wtp for a public good even where there is a nonzero elasticity of substitution between market goods and the public good provided that the indifference curves are asymptotically bounded with respect to market goods in the manner they describe this is an important point they are also correct to point out that the elasticity of substitution is a local concept whereas their asymptotic boundedness condition applies also for discrete changes my 1991 paper used a local analysis because it was following the structure of the analysis in robert d willig 1976 and alan randall and john r stoll 1980 i wanted to show that while randall and stoll appeared to extend willig s local result on wta versus wtp from price changes to changes in the quantity of a public good the relevant elasticity was in fact different and involved the substitution elasticity as well as the income elasticity i view these points by amiran and hagen as not two separate results but essentially the same result their asymptotic boundedness condition generalizes my zero elasticity of substitution condition to discrete changes the asymptotic boundedness condition can be expressed as follows assuming a bivariate utility function u x q and given a reference point x q associated with a reference utility level u u x q there exists some q q such that for all q q there exists no x such that u x q u in other words no amount of x can substitute for the reduction in public good from q to q q in the case of a zero elasticity of substitution q q but as amiran and hagen show in their theorem 1 this is unnecessarily restrictive when dealing with a discrete reduction in q furthermore their theorem 2 can be viewed as a special case of their theorem 1 in which q 0 which makes q an essential commodity it is well known in consumer theory that the wta to avoid the loss of an essential market good is infinite their theorem 2 extends this result to the case of an essential nonmarket good but as their theorem 1 shows essentialness is not necessary for an infinite wta the boundedness condition is the key and this implies a fundamental lack of substitutability between money market goods and the public good

least cost energy strategies for power system expansion abstract this paper describes a theoretical framework and practical procedure for identifying least cost energy strategies for power system expansion under such a strategy the socially optimal decision is defined by a least cost combination of not only conventional supply side generating options but also conservation and renewable resource options such that the cost of providing an incremental unit of electricity from all resources is the same in addition under a least cost energy strategy the reliability of electricity supply is determined on an economically optimal basis results of an actual case study of the pacific northwest region of the usa are presented

response bias in a conjoint analysis of power outages abstract a methodology is proposed for estimating status quo effects resistance to change and loss aversion willingness to pay is less than willingness to accept from consumer survey data conjoint data on israeli households attitudes to electricity outages reveal that both of these effects are pronounced and that they depend on the interviewees characteristics ordered conditional logit estimation indicates that while the estimates are rank sensitive the suggested methodology continues to be applicable finally the conjoint estimates are compared with those obtained by applying the method of contingent valuation

consumer s surplus without apology the purpose of this paper is to settle the controversy surrounding consumer s surplus and by so doing to validate its use as a tool of welfare economics i will show that observed consumer s surplus can be rigorously utilized to estimate the unobservable compensating and equivalent variations the correct theoretical measures of the welfare impact of changes in prices and income on an individual i derive precise upper and lower bounds on the percentage errors of approximating the compensating and equivalent variations with consumer s surplus these bounds can be explicitly calculated from observable demand data and it is clear that in most applications the error of approximation will be very small in fact the error will often be overshadowed by the errors involved in estimating the demand curve the results in no way depend upon arguments about the constancy of the marginal utility of income consequently this paper supplies specific empirical criteria which can replace the apologetic caveats frequently employed by those who presently apply consumer s surplus moreover the results imply that consumer s surplus is usually a very good approximation to the appropriate welfare measures to preview below i establish the validity of these rules of thumb for a

industrial ecology and eco industrial development a potential paradigm for local and regional development gibbs d deutz p and proctor a 2005 industrial ecology and eco industrial development a potential paradigm for local and regional development regional studies 39 171 183 increasingly concepts such as sustainable development and ecological modernization have entered into local and regional economic policies and strategies however integrating environmental and economic aims has proved difficult despite arguments that sustainability enables win win win solutions eco industrial development is a recent policy initiative that attempts to integrate economic social and environmental aims in a concrete form derived from concepts of industrial ecology eco industrial developments seek to increase business competitiveness reduce waste and pollution create jobs and improve working conditions while these initiatives are said to offer a new basis for local and regional development there has been little critical evaluation of eco industrial development

optimal interconnection and renewable targets for north west europe we present a mixed integer linear programming model for determining optimal interconnection for a given level of renewable generation using a cost minimisation approach optimal interconnection and capacity investment decisions are determined under various targets for renewable penetration the model is applied to a test system for eight regions in northern europe it is found that considerations on the supply side dominate demand side considerations when determining optimal interconnection investment interconnection is found to decrease generation capacity investment and total costs only when there is a target for renewable generation higher wind integration costs see a concentration of wind in high wind regions with interconnection to other regions

customer preferences for reliable power supply using data on actual choices of back up equipment this paper empirically examines customer preferences for the reliable sources of electricity using data obtained from a survey of back up systems owned by large computer users in japan the empirical results based on probabilistic discrete choice models indicate that 1 customers face a trade off between the price and the reliability of the power supply and 2 customer characteristics such as types of business and levels of electricity usage have significant impacts on the choice of back up apparatuses the estimates of cost changes that would offset reliability changes imply that the financial and communications sectors are more concerned about reliability than are other sectors copyright 1994 by mit press

assessing energy supply security outage costs in private households abstract the objective of this paper is to contribute to the topic of energy supply security by proposing a monte carlo based and a survey based model to analyze the costs of power interruptions outage cost estimations are particularly important when deciding on investments to improve supply security e g additional transmission lines in order to compare costs to benefits but also other policy decisions on measures that have direct or indirect consequences for the supply security e g a phasing out of nuclear energy need to be based on results from outage cost estimations the main focus of this paper lies with residential consumers but the model is applied to commercial industrial and governmental consumers as well there are limited studies that have approached the problem of evaluating outage cost when comparing the results of these studies they often display a high degree of diversification as consumers have different needs and dependencies towards the supply of electricity because of varying circumstances and preferences a great diversity in outage cost is a logical consequence to take the high degree of uncertainties into account a monte carlo simulation was conducted in this study for the case of private households in germany

constructing demand curves in forward capacity market this paper presents an economic framework for designing demand curves in forward capacity market fcm capacity demand curves have been recognized as a way to reduce the price volatility inherited from fixed capacity requirements however due to the lack of direct demand bidding in fcm obtaining demand curves that appropriately reflect load s willingness to pay for reliability is challenging the proposed framework measures the value of reliability by the avoided cost of unserved energy cue i e expected unserved energy eue multiplied by value of lost load voll the total cost of capacity and cue are then minimized allowing economic tradeoffs between different reliability levels eue a multivariate function of the total system capacity and its distribution among capacity zones is decomposed into single variable functions which form the base for system and zonal demand curves voll is implied from the net cost of new entry net cone based on long term market equilibrium properties the proposed framework is applied to a multizone iso new england system to demonstrate its effectiveness

examining risk preferences under high monetary incentives experimental evidence from the people s republic of china several experimental sessions were conducted to elicit certainty equivalents for a sequence of lotteries involving real monetary outcomes the opportunity to conduct sessions in the people s republic of china afforded the ability to offer very large monetary incentives relative to subjects living costs in the highest payoff condition subjects earned three times their normal monthly revenue in the course of a two hour experiment results indicate a statistically significant impact of the level of monetary incentives on revealed risk preferences however even under extreme monetary incentives subjects demanded amounts well in excess of expected value for low probability gain prospects copyright 1992 by american economic association

the cost of natural gas shortages in ireland this paper investigates the economic implications of disruptions of one to ninety days to the supply of natural gas in ireland we assess the impact of a hypothetical gas supply disruption in both winter and summer in 2008 with observed market characteristics and in 2020 with projected market characteristics the cost of a natural gas outage includes the cost of natural gas being unavailable for heating and other purposes in the industrial and commercial sectors lost consumer surplus in the residential sector the cost of lost electricity in all sectors and lost vat on the sale of gas and electricity ireland generates much of its electricity from natural gas and the loss of this electricity accounts for the majority of the cost of a natural gas outage losing gas fired electricity would cost 0 1 1 0 billion euro per day depending on the time to the week the time of year and rationing industry should be rationed before households to minimise economic losses but current emergency protocols do the opposite if gas fired electricity is unavailable for three months the economic loss could be up to 80 billion euro about half of gross domestic product losing gas for heating too would add up to approximately 8 billion euro in economic losses we also discuss some options to increase ireland s security of supply and find that the cost is a small fraction of the avoided maximum damage

evaluation of the marginal outage costs of generating systems for the purposes of spot pricing this paper describes a methodology based on quantitative power system reliability evaluation for calculating the marginal outage costs of generating systems the proposed method involves the calculation of the incremental expected unserved energy at a given operating reserve level and lead time and the multiplication of this value by the interrupted energy assessment rate of the system the method is illustrated in this paper by calculating the marginal outage cost profile of the ieee reliability test system and by examining the effect of various modeling assumptions on that profile

an analysis of a forward capacity market with long term contracts we analyze the effectiveness of a forward capacity market fcm with long term contracts in an electricity market in the presence of a growing share of renewable energy an agent based model is used for this analysis capacity markets can compensate for the deteriorating incentive to invest in controllable power plants when the share of variable renewable energy sources grows but may create volatile prices themselves capacity markets with long term contracts have been developed e g in the uk to stabilize capacity prices in our analysis a fcm is effective in providing the required adequacy level and leads to lower cost to consumers and more stable capacity prices as compared to a yearly capacity market in case of a demand shock a fcm may develop an investment cycle but it still maintains security of supply its main effect on the power plant portfolio is more investment in peak plant

a method to estimate the costs and benefits of undergrounding electricity transmission and distribution lines abstract there has been a general shortfall of peer reviewed literature identifying methods to estimate the costs and benefits of strategies employed by electric utilities to improve grid resilience this paper introduces for the first time a comprehensive analysis framework to estimate the societal costs and benefits of implementing one strategy to improve power system reliability undergrounding power transmission and distribution lines it is shown that undergrounding transmission and distribution lines can be a cost effective strategy to improve reliability but only if certain criteria are met before the decision to underground is made

testing the internal consistency of contingent valuation surveys abstract for an internal consistency check one can examine wtp responses to different surveys holding an environmental problem constant concave preferences imply wtpconcavein the success of a remedy the same preferences imply wtpconvexin the magnitude of an environmental problem assuming a successful remedy having opposite signed curvature of these two wtp patterns is general not requiring concave preferences for an adding up test an environmental commodity can be divided then wtp for one part plus wtp for the second part conditional on already having the first part equals wtp for the whole adjusted by an income effect

third wave sustainability smart growth and regional development in the usa krueger r and gibbs d third wave sustainability smart growth and regional development in the usa regional studies increasingly concepts of sustainable development are finding their way into local and regional development strategies this is also true in the usa though not through the local agenda 21 process as is the case in much of the rest of the world the approach to sustainable development in the usa is a set of policy approaches collectively referred to as smart growth smart growth is sometimes referred to as a uniquely american variant of sustainable development in contrast to local agenda 21 smart growth has captured the imagination of american policy makers at all spatial scales many have lauded smart growth as a market based approach that promotes the tripartite concerns of sustainability this paper positions smart growth in the context of broader political economic change and scrutinizes its incentive based approach through a case study from the boston massachusetts regio

a 100 year review of electricity policy in ireland 1916 2015 abstract over the past century ireland s electricity sector has undergone a significant transformation this paper documents the nation s struggle to build an electricity system to improve security of electricity supply through portfolio diversification and to promote indigenous energy sources this was a challenge for an electrically isolated island with little natural resources the paper also identifies the ineffective policy decisions that left ireland exposed to the 1970s energy crises the crises did however provide a clear impetus for focusing irish energy policy going forward the successful deployment and integration of large scale wind power was due to strong national and supranational policy decisions in 2015 ireland had the third highest wind energy share of national electricity demand 22 8 of all iea wind member countries the paper also traces ireland s transition through market reform regional fragmentation and looks onwards to the eu internal market for electricity in essence this paper provides a holistic view of the implications of various policy decisions on the electricity sector along with the stresses of external factors on the electricity market and should be useful for policy makers elsewhere faced with similar decisions

a new meta analysis on the wtp wta disparity abstract this study reports a new meta analysis of papers that elicit willingness to pay wtp and willingness to accept compensation wta measures of value for the same good we investigate the effects of type of good and several survey design features on the wtp wta disparity measured as the logarithm of the ratio of mean wta to mean wtp confirming horowitz and mcconnell s 2002 pioneering meta analysis we find the disparity is smaller for ordinary private goods than for public and non market goods that it is not solely an artifact of using hypothetical transactions or other weak experimental or survey methods and that it is smaller for studies using student subjects in addition we find that the disparity is smaller when subjects have experience valuing the good in real markets or through repeated experimental trials in contrast to horowitz and mcconnell we find the disparity is significantly smaller in studies using incentive compatible elicitation mechanisms the disparity is smaller in more recent studies an effect that is attributable only in part to changes in study characteristics

estimating the willingness to pay for reliable electricity supply a choice experiment study abstract this research examines households willingness to pay wtp for an improved electricity service households stated wtp is estimated using the choice experiment ce method the data used in the estimations come from 350 in person interviews conducted during the period 5 22 august 2008 in north cyprus compensating variation cv estimates for a zero outage scenario are calculated using the parameter estimates from the mixed logit ml model these are 6 65 ytl turkish lira per month 3 02 usd for summer and 25 83 ytl per month 11 74 usd for winter in order to avoid the cost of outages households are willing to incur a 3 6 and a 13 9 increase in their monthly electricity bill for summer and winter respectively the wtp per hour unserved is 0 28 ytl 0 13 usd for summer and 1 08 ytl 0 49 usd for winter a preliminary cost benefit analysis indicates that the annualized economic benefits are approximately 42 7 million ytl 19 4 million usd for the residential sector this would justify an investment in additional generation capacity of approximately 268 mw which is far more than that which is needed to eliminate the service reliability problem

estimating the economic impacts of power supply interruptions abstract the cost of power system rationing which is a crucial parameter for determining optimal resilience investments is usually estimated using reduced form linear models or ordinary input output analysis however such methods do not properly address either consumers rational reactions to rationing policy or policy design nonlinearities to solve this problem this paper estimates the effects of power system rationing using a general equilibrium model the model solution shows that the power cut distribution among industries is a critical variable for quantifying policy effects and provides insights into optimal policy design