the electricity generation adequacy problem assessing dynamic effects of capacity remuneration mechanisms abstract following liberalization reforms the ability of power markets to provide satisfactory incentives for capacity investments has become a major concern in particular current energy markets can exhibit a phenomenon of investment cycles which generate phases of under and over capacity and hence additional costs and risks for generation adequacy to cope with these issues new mechanisms called capacity remuneration mechanisms crm have been or will be implemented this paper assesses the dynamic effects of two crms the capacity market and the strategic reserve mechanism and studies to what extent they can reduce the investment cycles generation costs and shortage costs of both mechanisms are also compared to conclude on their effectivity and economic efficiency a simulation model based on system dynamics is developed to study the functioning of both crms and the related investment decisions the results highlight the benefits of deploying crms to solve the adequacy issue shortages are strongly reduced compared to an energy only market besides the capacity market appears to be more beneficial since it experiences fewer shortages and generation costs are lower these comparisons can be used by policy makers in particular in europe where these two crms are mainly debated to determine which crm to adopt

short term optimal wind power generation capacity in liberalized electricity markets mainly because of environmental concerns and fuel price uncertainties considerable amounts of wind based generation capacity are being added to some deregulated power systems the rapid wind development registered in some countries has essentially been driven by strong subsidizing programs since wind investments are commonly isolated from market signals installed wind capacity can be higher than optimal leading to distortions of the power prices with a consequent loss of social welfare in this work the influence of wind generation on power prices in the framework of a liberalized electricity market has been assessed by means of stochastic simulation techniques the developed methodology allows investigating the maximal wind capacity that would be profitably deployed if wind investments were subject to market conditions only for this purpose stochastic variables determining power prices are accurately modeled a test system resembling the size and characteristics of the german power system has been selected for this study the expected value of the optimal short term wind capacity is evaluated for a considerable number of random realizations of power prices the impact of dispersing the wind capacity over statistical independent wind sites has also been evaluated the simulation results reveal that fuel prices installation and financing costs of wind investments are very influential parameters on the maximal wind capacity that might be accommodated in a market based manner

a review of policy analysis purpose and capabilities of electricity system models abstract the aim of this study is to investigate the ability of electricity system models to provide scenario based insights for policy purposes a framework is built from a review of existing studies of model characteristics and their linkages to model scenario types which are linked to the purpose of policy problem analyses the framework can be used as a tool to structure the examination of electricity system models and guide electricity system model selection and enhancement in light of policy problem driven analyses an illustration of the framework is presented by a review of german electricity model scenario studies the review shows that current models are used for the policy purpose of indicator assessment and instrument comparison by quantification of indicators such as monetary or pollution impacts however they are not suitable to provide the means for option reduction problem exploration and political or societal paradigm change exploration as the endogenous model structure for these is missing a particular lack of endogenous treatment was found for renewable technology capacity change and policies learning and productivity growth based technological change socio political technical interactions and limited demonstrated use of uncertainty treatment techniques

a novel inclusion of intermittent generation resources in long term energy auctions abstract long term energy auctions are positioning as a valuable tool in order to attract new investments into power systems especially in latin american countries where emergent economies characteristics and their correspondent risks are usually present even though the focus of these auctions is the long term there are short term issues involved which actual auction designs fail to include resulting in an energy allocation that is not necessarily optimal for the system a condition which becomes more evident in the presence of intermittent renewable technologies a novel mechanism is formulated to obtain the optimal allocation in long term energy auctions considering short term generation profiles from both intermittent and conventional base load technologies and also their risk aversions the proposed mechanism is developed and simulations are made for some scenarios in the chilean power market with different levels of renewable penetration significant cost savings are achieved for the final consumers in relation to energy purchases in comparison with a mechanism that follows the demand profile as more renewable intermittent capacity enters the power system it is evident the need for changes in the energy auctions allocation mechanisms including elements to exploit the synergies among participants in the short term

the gender gap fertility and growth changes in fertility have long been recognized as important correlates of economic growth with the relationship between the level of fertility and the level of income per capita being one of the strongest observable correlations in cross country data this paper examines the linkages between fertility and growth theory the structure of the model is presented in sections on production couples decision making system dynamics and steady state equilibria the first component of the model is that increases in capital per worker raise womens relative wages since capital is more complementary to womens labor input than to mens the second component is that increasing womens relative wages reduces fertility by raising the cost of children more than household income finally lower fertility raises the level of capital per worker a positive feedback loop generates demographic transition a rapid decline in fertility accompanied by accelerated output growth

long run equilibrium modeling of emissions allowance allocation systems in electric power markets carbon dioxide allowance trading systems for electricity generators are in place in the european union and in several u s states an important question in the design of such systems is how allowances are to be initially allocated by auction by giving away fixed amounts grandfathering or by allocating based on present or recent output investment or other decisions the latter system can bias investment operations and product pricing decisions and increase costs relative to the other systems a nonlinear complementarity model is proposed for investigating the long run equilibria that would result under alternative systems for power markets characterized by time varying demand and multiple technology types existence of equilibria is shown under mild conditions solutions for simple systems show that allocating allowances to new capacity based on fuel use or generator type can yield large distortions in capacity investment invert the operating order of power plants and inflate consumer costs the distortions can be smaller for tighter co2 restrictions and are somewhat mitigated if there is also a market for electricity capacity or minimum run restrictions on coal plants distortions are also less if allowances are allocated to plants in proportion to sales rather than capacity

from malthusian stagnation to modern growth this paper investigates the historical evolution of the relationship among population growth technological change and standard of living the analysis focuses on two most important differences among the malthusian regime post malthusian regime and modern growth regime these were the behavior of income per capita and the relationship between the level of income per capita and the population growth rate the modern growth regime is characterized by steady growth in both income per capita and the level of technology in the malthusian regime technological progress and population growth was glacial by modern standards and income per capita was fairly constant in contrast to the modern growth regime the relationship between per capita income and population growth in the malthusian regime was positive post malthusian regime shared one characteristic with each of the two regimes in addition this paper developed and described an endogenous growth model consistent with the above mentioned transition process

the dynamics of the uk chemical plant investment cycle abstract orders for new chemical plant sanctions and investment in chemical plant both show marked business cycle like variations amongst the effects of the uk cycle on the chemical industry are variations in new plant additions requirements for capital expenditure finance and capital utilization as far as the uk process plant contractors and process plant manufacturers are concerned the cycle is reflected in a varying work load arising from the uk chemical industry together with varying manpower requirements and profitability the project described in this paper involved the construction of both system dynamics and control systems models of the investment cycle as a guide to strategic planning for the industries affected by it the implications of the results from both types of model for corporate and strategic planning in the industries concerned are discussed

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

assessing the impacts of capacity mechanisms on generation adequacy with dynamic simulations there have been many debates over whether the energy only electricity market will be able to provide a reasonable investment signal so far many diverse designs of capacity mechanisms have been proposed in relation to the adequacy problem researchers have conducted many qualitative studies of capacity mechanisms but quantitative studies have largely been ignored the framework for examining the impacts of market designs on generation adequacy considering various generation technologies have not been maturely developed this paper focuses on developing this framework and finding out how effective capacity mechanisms are in different market conditions to cover investment under uncertainty we will introduce different utility functions representing risk attitudes and apply the expected utility theory to the investment decision finally we will examine the investment decision sensitivity of the risk components such as the risk attitude the error of forecast peak load and the forced outage rate and evaluate the performance of three market designs with dynamic simulations an energy only market a capacity payment model and a capacity demand curve model

a dynamic analysis of a demand curve based capacity market proposal the pjm reliability pricing model because of high generation adequacy standards in the power industry some peaking capacity operates for a limited time during the year and may not receive sufficient energy revenues to meet its fixed costs this is particularly true when energy prices are capped in order to mitigate market power the northeastern u s independent system operators isos have responded to this issue by establishing capacity obligations for loads and markets for installed capacity thus providing a capacity revenue stream to generators the installed capacity icap markets in the northeastern u s markets are a response to this need for additional incentives to construct generation the federal energy regulatory commission ferc has accepted the pjm interconnection s pjm proposal to replace the present fixed icap requirement that is placed upon load serving entities lses with a demand curve based system in which the iso would be responsible for acquiring residual capacity on behalf of lses the demand curve approach pays more when reserve margins are smaller and provides a reduced incentive for investment when installed reserves are above the target another goal is to make revenues more predictable for generators making investment less costly and ultimately lowering prices for consumers a dynamic representative agent model is presented for projecting effects upon reserve margins generator profitability and consumer costs and is applied to alternative demand curves proposed for the pjm market the consumer costs resulting from a sloped demand curve are robustly lower compared to the present fixed requirement under a wide range of assumptions concerning behavior of generation owners including risk attitudes bidding behavior and willingness to build capacity as a function of forecast profit the cost savings arise from lower capital costs to generators due to reduced risk and risk premiums also average installed capacity is less for the same level of reliability because of reduced fluctuations in installed reserves

exploring the options for carbon dioxide mitigation in turkish electric power industry system dynamics approach electric power industry has a huge carbon mitigation potential fundamentally because there are large carbon free renewable resource options in turkey with growing demand in electricity consumption and incentives offered for natural gas fired electricity generation co2 emissions sourced from electric power industry had tripled over the last two decades current governmental strategy focuses on energy security and resource diversity in a growing economy and does not articulate sufficient mitigation targets and appropriate regulations in this research an original dynamic simulation model is built validated and analyzed to explore the options for carbon mitigation in turkish electric power industry model structure represents the investment dispatch and pricing heuristics as well as the natural resource base of electricity generation in turkey it operates on annual basis over 30 years to simulate installed capacities and generations of power plants with alternative resources and their resulting co2 emissions the analysis presented in this paper reveals that there are mitigation options below 50 of business as usual growth with common policy options such as feed in tariffs investment subsidies and carbon taxes the model can serve as an experimental platform for further analysis of problems related to carbon mitigation in turkish electricity sector

the trend and the measurement of world inequality over extended periods of accounting abstract the principal result of this paper is the demonstration of a method for measuring an index of e g nominal gnp over extended periods of time and the inequality thereof snap shot inequality for specific points in 1964 1972 and 1980 is also reported and decomposed for six subgroups in 122 countries

modeling long term dynamics of electricity markets in the last decade many countries have restructured their electricity industries by introducing competition in their power generation sectors although some restructuring has been regarded as successful the short experience accumulated with liberalized power markets does not allow making any founded assertion about their long term behavior long term prices and long term supply reliability are now center of interest this concerns firms considering investments in generation capacity and regulatory authorities interested in assuring the long term supply adequacy and the stability of power markets in order to gain significant insight into the long term behavior of liberalized power markets in this paper a simulation model based on system dynamics is proposed and the underlying mathematical formulations extensively discussed unlike classical market models based on the assumption that market outcomes replicate the results of a centrally made optimization the approach presented here focuses on replicating the system structure of power markets and the logic of relationships among system components in order to derive its dynamical response the simulations suggest that there might be serious problems to adjust early enough the generation capacity necessary to maintain stable reserve margins and consequently stable long term price levels because of feedback loops embedded in the structure of power markets and the existence of some time lags the long term market development might exhibit a quite volatile behavior by varying some exogenous inputs a sensitivity analysis is carried out to assess the influence of these factors on the long run market dynamics

the economics of child labor if child labor as a mass phenomenon occurs not because of parental selfishness but because of the parents concern for the household s survival the popular argument for banning child labor loses much of its force however this assumption about parental decision making coupled with the assumption of substitutability in production between child and adult labor could result in multiple equilibria in the labor market with one equilibrium where children work and another where adult wage is high and children do not work the paper establishes this result and discusses its policy implications copyright 1998 by american economic association

changes in the world distribution of income between 1950 and 1977 trends in the world distribution of income are much discussed and philosophised about the issue of increasing economic inequality among nonsocialist countries in the post war period is central to the debate about the international economic order in i969 the pearson commission report was already pointing to the widening gap between the developed and developing countries as a central issue of our time and was proposing the reduction of that gap as the main objective of international co operation according to that report gnp per capita had increased between i960 and i967 at annual rates of 2 5 and 3 6 in developing and developed countries respectively morawetz i978 found that the gap between the two sets of countries rose from i 2 6 fold in i950 to i3 2 fold in i975 other authors see a more complicated picture atkinson i975 for instance has argued that although the share of poor countries in world income probably declined between i950 and i970 that of the countries at the middle of the world distribution probably increased 2 what may be a mere assessment of relative growth performances among nonsocialist countries becomes a basic theoretical element in the radical stream of economic literature for authors like amin i974 emmanuel i972 and frank i978 the capitalist mode of development necessarily leads to the rich countries of the centre becoming richer and poor countries of the periphery becoming poorer in a degree depending on their involvement in international trade for them a widening gap between developed and developing countries is simply the statistical confirmation of an unavoidable consequence of the national and international capitalist system in the latter perspective the issue at stake is of such importance that the contrast between the abundance of theoretical literature and the lack of empirical work is striking the few existing studies of changes in world distribution provide an inadequate picture intra country income distributions are not taken into account observation periods do not exceed i5 years 8 for andic and peacock i96i and for beckerman and bacon i970 i5 for kirman and tomasini i969 socialist as well as some non socialist countries are excluded and national incomes are converted to u s dollars at official exchange rates 3 finally none of these studies covers the i970s although several shocks which might have affected world distribution occurred during that decade for the non socialist countries to which they refer the andic peacock and beckerman bacon studies found the gini coefficient almost constant over

dynamic modeling of thermal generation capacity investment application to markets with high wind penetration modeling the dynamics of merchant generation investment in market environments can inform the making of policies whose goals are to promote investment in renewable generation while maintaining security of supply such models need to calculate expected output costs and revenue of thermal generation subject to varying load and random generator outages in a power system with high penetrations of wind this paper presents a dynamic investment simulation model where the short term energy market is simulated using probabilistic production costing using the mix of normals distribution mond technique to represent residual load load net of wind output price mark ups due to market power are accounted for an energy only market setting is used to estimate the economic profitability of investments and forecast the evolution of security of supply simulated results for a great britain gb market case study show a pattern of increased relative security of supply risk during the 2020s in addition many new investments can recover their fixed costs only during years in which more frequent supply shortages push energy prices higher

adapt a price stabilizing compliance policy for renewable energy certificates the case of srec markets currently most renewable energy certificate rec markets are defined based on targets that create an artificial step demand function resembling a cliff this target policy produces volatile prices that can make investing in renewables a risky proposition in this paper we propose an alternative policy called adjustable dynamic assignment of penalties and targets adapt that uses a sloped compliance penalty and a self regulating requirement schedule both designed to stabilize rec prices helping to alleviate a common weakness of environmental markets to capture market behavior we model the market as a stochastic dynamic programming problem to understand how the market might balance the decision to use a rec now versus holding it for future periods in the face of uncertain new supply then we present and prove some of the properties of this market and finally we show that this mechanism reduces the volatility of rec prices which should stabilize the market and encourage long term investment in r

intercountry inequalities in income and index of net social progress evidence from recent data abstract intercountry income inequality is computed from real gdp data that became available recently from phase iv of international comparisons project similar inequality measures are also calculated for index of net social progress proposed by estes 1983 and for conventional gnp per capita although the three indicators are strongly and positively correlated intercountry inequality indices derived from these are rather dramatically different

short term resource adequacy in electricity market design short term resource adequacy is the ability of a system with a set of given resources to meet the load over the short term in the aftermath of the 2000 2001 california crisis the consideration of resource adequacy in market design became critically important various capacity approaches such as requirements payments and subscriptions have been proposed to ensure resource adequacy in electricity markets we focus on short term resource adequacy design and analysis within the context of making effective use of competition in electricity markets we propose a design of a short term resource adequacy program based on capacity requirements expressed in terms of a price sensitive demand curve the program gives incentives for providing capacity to markets and metes out penalties for nonperformance situations the probabilistic modeling of the uncertainty in the generation availability and in the load allows the evaluation of reliability in terms of widely used metrics the analysis of the proposed design and the simulation of a simple implementation on different sized test systems show that the program results in improved reliability these studies indicate that the total system costs may be minimized when key program parameters are appropriately chosen the proposed design provides a meaningful linkage between reliability and markets and constitutes a contribution to the electricity market design

what are the right policies for electricity supply in middle east a regional dynamic integrated electricity model for the province of yazd in iran energy planning techniques are essential tools in the management of new complex energy systems among different techniques system dynamics is an appropriate technique for the simulation of complex energy systems and the analysis of their dynamism in this paper a regional dynamic integrated electricity model rdiem is developed for a regulated electricity supply system in order to analyze the results of different scenarios and policies and find the right policies for the electricity generation the results of model are validated with a real case in the province of yazd in iran the results show that the balanced growth and the environment oriented policies have the best results among different policies although the application is related to the iranian case the implications are much wider especially in the middle east

another perspective on changes in international inequality from 1950 to 1980 abstract real income data derived from the third phase of the international comparisons project are used to compute theil s population weighted indices of intercountry inequality for several years between 1950 and 1980 contrary to some recently reported results a substantial increase in inequality is observed internationally comparable consumption data indicate consumption inequality increased more than income inequality

the impact of investors risk aversion on the performances of capacity remuneration mechanisms abstract this paper analyses the impact of risk aversion on the performances of capacity remuneration mechanisms with investors facing an uncertain peak load three market designs are studied for this purpose a competitive energy only market a capacity market and a strategic reserve mechanism a simulation model based on system dynamics is developed in order to represent investment decisions and analyse the behaviour of each market design risk aversion is modelled through the computation of conditional value at risk the results are discussed in terms of impact on the reliability ability to limit shortages and cost total generation costs of the studied market designs when comparing the three market designs the capacity market seems to be the least affected by the introduction of risk aversion both in terms of cost and reliability this result suggests that implementing a capacity market is preferable in order to deal with the adverse effects of risk aversion given the simulations and parameters that were used

dynamic scheduling of operating reserves in co optimized electricity markets with wind power we propose a probabilistic methodology to estimate a demand curve for operating reserves where the curve represents the amount that a system operator is willing to pay for these services the demand curve is quantified by the cost of unserved energy and the expected loss of load accounting for uncertainty from generator contingencies load forecasting errors and wind power forecasting errors the methodology addresses two key challenges in electricity market design integrating wind power more efficiently and improving scarcity pricing in a case study we apply the proposed operating reserve strategies in a two settlement electricity market with centralized unit commitment and economic dispatch and co optimization of energy and reserves we compare the proposed probabilistic approach to traditional operating reserve rules we use the illinois power system to illustrate the efficiency of the proposed reserve market modeling approach when it is combined with probabilistic wind power forecasting

a market approach to long term security of supply the problem of ensuring that there is enough generation capacity to meet future demand has been an issue in market design since the beginning of the deregulation process although ideally the market itself should be enough to provide adequate investment incentives there are several factors that prevent this result from being achieved and some actual markets have already experienced problems related with a lack of generation capacity a regulatory framework to address this question is presented the procedure is based on an organized market where reliability contracts based on financial call options are auctioned so both their price and their allocation among the different plants are determined through competitive mechanisms this results in a stabilization of the income of the generators and provides a clear incentive for new generation investment with a minimum of regulatory intervention additionally the method represents a market compatible mechanism to hedge demand from the occurrence of high market prices

electricity markets for energy flexibility and availability impact of capacity mechanisms on the remuneration of generation technologies abstract increased shares of renewable energy sources res to fulfill ambitious european policy targets mothballing or decommissioning of existing units and absent investments lead to concerns about the system and market adequacy to restore market adequacy capacity mechanisms cms are widely discussed and implemented in various types they are intended to provide sufficient and clearly perceivable long term price signals for available capacity as integral part of the market cms interact with the other markets markets like day ahead markets are used to trade energy imbalance markets or reserve requirements are examples for markets for flexibility among others green certificates are in place to value emission neutral injection from res resulting altered prices and shifting remuneration have effects on all generation technologies cms may affect participating technologies by imposing a capacity demand a resulting change in the generation mix may also have an impact on non participating technologies two gaps can be identified in the discussion and modeling of cms in the literature first proposed game theoretic equilibrium models fall short in representing the distinctive features of different types of cms second most models incorporating cms found in the literature only focus on the interaction with the energy based market valid assessments of cm need to consider the interaction of remuneration for available capacity and flexibility and the indirect interaction with the remuneration for emission neutral res two formulations of a game theoretic market equilibrium model are proposed which represent specific cms with its distinctive features in particular a market wide centralized capacity market ccm and targeted strategic reserves srs moreover the equilibrium models explicitly combine the cms with markets for flexibility and indirect with remuneration for res we contribute to the discussion of cms by quantifying the interactions and shifting shares of remuneration based on the interaction between cms and remuneration for emission neutral injection the effect of cms on non participating res is described we conclude based on the case study results that targeted mechanisms like srs implemented with the single purpose of ensuring availability introduce large inefficiencies in the system by missing on the interaction between availability and flexibility in contrast a market wide ccm provides a beneficial outcome for all technologies at the same time it yields a sufficient high reserve margin at lowest cost it provides clear signals for the different values of energy output flexibility availability and emission neutral injection

review of the security of supply in turkish energy markets lessons from the winter shortages abstract turkey has changed the essentials of its energy markets more than a decade ago it was mainly a transition from a state led model to a free market one although some levels of progress is observable security of supply particularly in times of short term supply disruption had not been widely tested harsh winter conditions set a litmus test for turkish energy markets basing on the this test this paper provides an analysis of to what extent turkey is open to the risks of energy supply security and discusses possible measures to relieve future supply disruption risks energy policy making should consider the fact that electricity and gas markets are highly intertwined in turkey and security of supply measures could have cross market implications paper concludes

economic interpretation of demand curves in multi product electricity markets part ii practice in the absence of demand side bids for certain reliability products in the wholesale electricity markets independent system operators isos traditionally use fixed demand requirements with penalty factors to clear the market this approach does not allow proper tradeoffs between cost and reliability due to the inelasticity of the fixed requirements therefore isos have been replacing the fixed requirements with sloped demand curves however the economic interpretation of demand curves especially for multiple coupled products is largely missing in both theory and practice this could lead to the misrepresentation of the demand benefit in the market clearing objective using a two product market model part i of this paper reveals two distinct interpretations of demand curves each associated with a specific form of the market clearing problem this implies that the construction of demand curves and the use of them in market clearing must be consistent with their economic interpretation in part ii of this paper we analyze the sequential and iterative market clearing processes currently implemented in some markets to demonstrate their solution sub optimality the root cause of the problem is the lack of a clear representation of the demand benefit the social surplus optimization based on the proper interpretation of demand curves is proposed

international inequalities in human development and real income abstract two well recommended measures are used to compute intercountry inequalities in real gdp per capita ry and the index of human development hdi despite very high positive correlation between ry and hdi the inequality measures reveal dramatically different pictures

rational entry into risky markets with negative expected returns the role of biased misestimation of profit potential abstract we extend the theory of negative long run profits in risky industries by incorporating a negatively skewed profit distribution rational behavior with incomplete information is introduced by allowing economic agents to know the median rather than the mean rate of return we compare this to the case involving postdecision bolstering where entrants choose to discount available information on the industry profit distribution monte carlo experiments are tailored to the experience of the u s home building industry

sensitivity of reserve margin to factors influencing investment behaviour in the electricity market of england and wales abstract the electricity generation and distribution industries of england and wales have recently undergone major re structuring as part of the privatization process of taking them out of the public sector on the generation side three major companies have been created which compete both with each other and with the new independent companies who are expected to enter the market trading between generators and distributors is controlled centrally by a pool system which attempts to ensure the optimal operation of the system in the short term and gives a pricing signal for longer term investment this pricing signal depends upon an a priori loss of load probability this paper is intended to provide insights into how the investment in capacity for generation could evolve according to various regulatory conditions economic assumptions degrees of competition and the strategic behaviour of the separate companies using a system dynamics approach a simulation model of investment is developed to generate insights into the volatility of the reserve margin variations in the loss of load probability and the various market share scenarios the degree of uncertainty in the demand the amount of information exchange between competitors and the degree of foresight in planning are considered as well as different financial or market share objectives for companies

the role of energy efficiency spending in maryland s implementation of the regional greenhouse gas initiative what are the economic consequences of increased state spending on electricity consumption efficiency the state of maryland faces this question in deciding how much of its co2 allowances auction proceeds under the regional greenhouse gas initiative to devote to such programs starting at a base of 25 of the proceeds we consider the energy savings emissions reductions employment and other impacts of increasing that percentage to 50 and 100 a series of models haiku jhu outec and implan are used for the analysis we conclude that increasing the state s expenditures on energy efficiency programs would result in a decline in electricity consumption in the state and a corresponding decline in expenditures on electricity program implementation would lead to net positive growth in statewide economic activity and include growth in both jobs and wages

on the behavioral and rational foundations of economic dynamics abstract existing uncertainties about the correct explanations for economic growth and business cycles cannot be settled by aggregative analysis within the neoclassical framework current disputes in theory rest largely on ad hoc casually empirical assumptions about departures from perfect rationality under uncertainty such disputes can only be settled by painstaking microeconomic empirical study of human decision making and problem solving microeconomic research of the kinds that are required can receive powerful guidance from the theories of human thinking that have been developed and tested over the past twenty five years by cognitive psychologists

a critical assessment of the different approaches aimed to secure electricity generation supply abstract since the very beginning of the power systems reform process one of the key questions posed has been whether the market of its own accord is able to provide satisfactory security of supply at the power generation level or if some additional regulatory mechanism needs to be introduced and in the latter case which is the most suitable approach to tackle the problem this matter is undoubtedly gaining importance and it has taken a key role in the energy regulators agendas in this paper we critically review and categorize the different approaches regulators can opt for to deal with the problem of guaranteeing or at least enhancing security of supply in a market oriented environment we analyze the most relevant regulatory design elements throughout an updated assessment of the broad range of international experiences highlighting the lessons we have learned so far in a variety of contexts based on the analysis we conclude by providing a set of principles and criteria that should be considered by the regulator when designing a security of supply mechanism

renewables vs energy efficiency the cost of carbon emissions reduction in spain while support instruments have succeeded to largely deploy renewables during the 1996 2008 period little attention has been paid to energy efficiency measures resulting in a high energy intensity and large growth of energy demand energy related co2 emissions have increased significantly at the same time important investments in combined cycle gas turbines have taken place this paper analyses whether from a cost minimization viewpoint renewable support has been the best policy for reducing emissions when compared to the promotion of energy efficiency in sectors such as transportation or buildings we use a model of the spanish energy sector to examine its evolution in the time period considered under different policies it is a bottom up static partial equilibrium linear programming model of the complete spanish energy system we conclude that demand side management dsm clearly dominates renewable energy re support if the reduction of emissions at minimum cost is the only concern we also quantify the savings that could have been achieved a total of 5 billion per year mainly in re subsidies and in smaller costs of meeting the reduced demand net of dsm implementation cost

economic consequences of a capacity market implementation the case of poland abstract this paper investigates the potential economic consequences of setting up a capacity market in poland a computable model of the polish power generation system is developed and employed to analyse the impact of this mechanism two scenarios are designed for this study i a reference scenario that reflects the energy only market and ii a capacity market scenario that assumes the implementation of such an instrument to assess the economic consequences the following parameters are estimated i annual electricity prices ii loss of load hours iii expected energy not served and only for the capacity market scenario iv market clearing price v total budget of the capacity market and vi increase in electricity price due to the introduction of the capacity market the findings of the study indicate that the long term maintenance of the energy only market results in higher electricity prices when compared to putting a capacity market into operation introducing a capacity market enables existing resources to be used effectively without excessive capital expenditure the methods and conclusions presented in this paper provide valuable findings and policy insights regarding the potential economic consequences of a capacity mechanism in a power system mostly dominated by coal and undergoing an energy transition

analysis of generation investment under different market designs in this paper a stochastic dynamic optimization model is used to analyze the effect of different market designs on generation investment and demand the expansion decisions of profit maximizing investors are simulated under four different market designs energy only capacity payment capacity obligation and capacity subscription the results show that the overall social welfare is reduced compared to a centralized social welfare optimization for the first three policies in particular an energy only market with a low price cap leads to insufficient generation investments capacity payments and obligations give additional investment incentives and more generating capacity but also result in a considerable transfer of wealth from consumers to producers due to the capacity payments in contrast the capacity subscription policy increases the social welfare and both producers and consumers benefit this is possible because capacity subscription explicitly utilizes differences in consumers preferences for uninterrupted supply this advantage must be weighed against the cost of implementation which is not included in the model

evaluation of electricity supply sustainability and security multi criteria decision analysis approach abstract electricity supply plays a significantly important role in national economy and society development accordingly the evaluation of electricity supply sustainability and security as an early warning method is beneficial for the decision makers policy makers to take various measures to enhance electricity supply sustainability and security this study aims at developing a multi criteria decision analysis framework for electricity supply sustainability and security evaluation and a total of nine metrics i e shannon weiner index electricity import dependence supply adequacy rural electrification rate electric power losses ratio residential consumption ratio electricity per gross domestic product electric power consumption per capita and fossil fuel dependence in four dimensions including availability and security of supply affordability and reliability energy and economic efficiency and environmental stewardship were employed for electricity supply sustainability and security evaluation fuzzy analytic hierarchy process which allows the users to use linguistic terms to express their opinions was used to determine the weights of the criteria which represent their relative importance in the evaluation of electricity supply sustainability and security grey rational analysis was used to prioritize the status of electricity supply sustainability and security of different countries in different years the electricity supply sustainability and security of the five major emerging national economies brazil russia india china and south africa was studied in chinese perspective by the proposed method

capacity adequacy in power markets facing energy transition a comparison of scarcity pricing and capacity mechanism this article analyses how a capacity mechanism can address security of supply objectives in a power market undergoing an energy transition that combines energy efficiency efforts to stabilise demand and a rapid increase in the proportion of renewables to analyse this situation power markets are simulated over the long term with a system dynamics model integrating new investment and closure decisions this last trait is relevant to studying investment in power generation in mature markets undergoing policy shocks the energy only market design with a price cap with and without a capacity mechanism is compared to scarcity pricing in two investment behaviour scenarios with and without risk aversion the results show that the three market designs lead to different levels of risk for peaking unit investment and results thus differ according to which risk aversion hypothesis is adopted assuming a risk neutral investor the results indicate that compared to an energy only market with a price cap at 3 000 mwh an energy only market with scarcity pricing and the market design with a capacity mechanism are two efficient options to reach similar levels of load loss but under the hypothesis of risk aversion the results highlight the advantage of the capacity mechanism over scarcity pricing

enhancing power supply adequacy in spain migrating from capacity payments to reliability options there has been total unanimity about the vital importance of reliability of supply since the beginning of the electricity sector deregulation process this paper describes the procedure proposed by perez arriaga et al 2005 white paper for the reform of the regulatory scheme of the power generation in spain for the ministry of industry tourism and trade of spain in spanish to improve upon the current scheme to guarantee a reasonable reserve margin the capacity payment mechanism this alternative design introduces improvements aimed at guaranteeing at least a minimum capacity reserve margin as well as at providing a strong incentive for generating units to be available when needed namely in situations when supply is likely to be insufficient to meet the total demand

factor decomposition of cross country income inequality 1960 1990 abstract in this paper we present esteban s 1994 esteban j 1994 la desigualdad interregional en europa y en espana descripcion y analisis in esteban j m a vives x dirs crecimiento y convergencia regional en espana y en europa vol 2 instituto de analisis economico decomposition of the theil index of inequality over per capita incomes into the unweighted sum of the inequality indices of i the productivity per employed worker ii the employment rate iii the active over working age population rate and iv the working age over total population rate each of these factors clearly have different meanings for analysis as well as for policy we apply this factoral decomposition to a set of 120 countries we also contrast the empirical findings with the results obtained for the 23 oecd countries oecd labour force statistics several issues paris

sustainable energy systems role of optimization modeling techniques in power generation and supply a review electricity is conceivably the most multipurpose energy carrier in modern global economy and therefore primarily linked to human and economic development energy sector reform is critical to sustainable energy development and includes reviewing and reforming subsidies establishing credible regulatory frameworks developing policy environments through regulatory interventions and creating market based approaches energy security has recently become an important policy driver and privatization of the electricity sector has secured energy supply and provided cheaper energy services in some countries in the short term but has led to contrary effects elsewhere due to increasing competition resulting in deferred investments in plant and infrastructure due to longer term uncertainties on the other hand global dependence on fossil fuels has led to the release of over 1100 gtco2 into the atmosphere since the mid 19th century currently energy related ghg emissions mainly from fossil fuel combustion for heat supply electricity generation and transport account for around 70 of total emissions including carbon dioxide methane and some traces of nitrous oxide this multitude of aspects play a role in societal debate in comparing electricity generating and supply options such as cost ghg emissions radiological and toxicological exposure occupational health and safety employment domestic energy security and social impressions energy systems engineering provides a methodological scientific framework to arrive at realistic integrated solutions to complex energy problems by adopting a holistic systems based approach especially at decision making and planning stage modeling and optimization found widespread applications in the study of physical and chemical systems production planning and scheduling systems location and transportation problems resource allocation in financial systems and engineering design this article reviews the literature on power and supply sector developments and analyzes the role of modeling and optimization in this sector as well as the future prospective of optimization modeling as a tool for sustainable energy systems

composite indices of physical quality of life basic needs fulfilment and income a principal component representation abstract in the context of international comparisons the multivariate method of principal components is suggested for computing composite indices of economic development that capture per capita income basic needs fulfilment and other possible indicators of well being the method is conceptually appealing easy to apply and seems promising in several directions two illustrative applications are given one develops a composite index based on the three pqli constituents and per capita gnp for 147 countries in the other a composite index of basic needs fulfilment is first computed for 82 countries and then a more inclusive measure that also takes account of per capita gnp is derived

population technology and growth from malthusian stagnation to the demographic transition and beyond this paper develops a unied growth model that captures the historical evolution of population technology and output it encompasses theendogenous transitionbetween three regimes that have characterized economic development the economy evolves from amalthusianregime wheretechnologicalprogressis slow andpopulationgrowthprevents anysustainedriseinincomepercapita intoapost malthusianregime wheretechnological progress rises and population growth absorbs only part of output growth ultimately a demographic transition reverses the positive relationship between income and population growth andtheeconomyentersamoderngrowthregimewithreducedpopulationgrowth

international income mobility abstract we perform a novel analysis of the international mobility of per capita gnp we find general but not unambiguous support for the notion that world income mobility increased between 1972 and 1992 counterpointing the increased inequality over this period

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

effects of a european electricity market on the german electricity industry results from a simulation model of the european power systems the introduction of an european common market for electricity and the opening of the power markets to eastern europe and scandinavia will have a drastic and lasting effect on the structure of the german electricity industry this paper presents an evaluation of the possible effects of a single market especially on the power trade within europe and the german power plant system one special aspect is the investigation whether a flooding of the german electricity market with french nuclear power could happen scenario simulations reject the argumentation that a european common market for electricity would lead to a dramatic increase in international electricity trade

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

differential difference equations in economics on the numerical solution of vintage capital growth models we examine techniques for the analytical and numerical solution of state dependent differential difference equations such equations occur in the continuous time modelling of vintage capital growth models which form an important class of models in modern economic growth theory the theoretical treatment of non state dependent differential difference equations in economics was discussed by benhabib and rustichini 1991 in general though the state dependence of a model prevents its analytical solution in all but the simplest of cases we review a numerical method for solving state dependent models using simple examples to illustrate our discussion in addition we apply this numerical method to the solow vintage capital growth model

dynamic analysis of various investment incentives and regional capacity assignment in iranian electricity market this paper develops a system dynamics model to analyze the impacts of different kinds of capacity payment as investment incentive mechanisms in iranian electricity market since it is aimed that the incurred capital and operating costs of generation technologies be recovered in iranian electricity pool the noncompetitive capacity payment mechanism has been introduced for this purpose in order to encourage new investments in electric power generation system in the current mechanism the capacity payments are designated to the generating units in the whole country electricity market an annual base value of capacity payment is proposed based on recovering the capital cost of a benchmark generation technology this value is altered according to the operational reserve in the day ahead electricity market this supporting policy is simulated and analyzed in the proposed dynamic framework in order to track the trend of new investments in the iranian electricity market the feasibility study of implementing the regional capacity assignment is the main focus of this paper different possible regulating policies such as floating rates for capacity payment and electricity price cap the multiple capacity payments to various technologies and the regional electricity market with territorial capacity allocation are examined in order to investigate the consequences and performances of different decisions and policies in the capacity investment of iranian electricity market

social classes demographic transition and economic growth abstract this paper analyzes the role of the demographic transition in the emergence of sustained economic growth and shows that these two processes are related unlike previous contributions which have focused on the importance of human capital this paper suggests that capital accumulation and the existence of different social classes may provide an alternative explanation for the observed pattern of output fertility rates and wages during the 19th century the framework presented shows that during the first phase of industrialization a decline in capital labor ratio reduces the wage rate and increases the dependency of the family unit on child labor increasing fertility rates however in later phases the increase in the capital labor ratio due to the saving of the business elite reduces the necessity of child labor bringing about the demographic transition