coal overcapacity in china multiscale analysis and prediction gaining a quantitative understanding of the causes of coal overcapacity and accurately predicting it are important for both government agencies and coal enterprises following the decomposition reconstruction prediction concept a combined ensemble empirical mode decomposition least square support vector machine autoregressive integrated moving average eemd lssvm arima model is proposed for quantitatively analyzing and forecasting coal overcapacity in china the results show that the main causes of coal overcapacity in china include insufficient demand market failure and institutional distortion institutional distortion with an influence degree of 73 75 is the most fundamental and influential factor from 2017 to 2019 the scale of coal overcapacity in china will reach between 1 721and 1 819 billion tons suggesting that coal overcapacity will remain a serious problem the rate of coal overcapacity caused by insufficient demand will fluctuate slightly while coal overcapacity caused by market failure will trend downward but the impact of institutional distortion on coal overcapacity will be exacerbated a statistical analysis demonstrates that the eemd lssvm arima model significantly outperformed other widely developed baselines e g arima lssvm eemd arima and eemd lssvm

impact of oil prices economic diversification policies and energy conservation programs on the electricity and water demands in kuwait abstract this paper describes the influences of oil revenue and government s policies toward economic developments and energy efficiency on the electricity and water demands a kuwait specific electricity and water demand model was developed based on historic data of oil income gross domestic product gdp population and electric load and water demand over the past twelve years 1998 2010 moreover the model took into account the future mega projects annual new connected loads and expected application of energy conservation programs it was run under six circumstances representing the combinations of three oil income scenarios and two government action policies toward economic diversification and energy conservation the first government policy is the status quo with respect to economic diversification and applying energy conservation programs the second policy scenario is the proactive strategy of raising the production of the non oil sector revenue and enforcing legislations toward energy demand side management and conservation in the upcoming 20 years the average rates of change of the electric load and water demand increase are 0 13 gw and 3 0 migd respectively per us dollar oil price increase moreover through proactive policy the rates of average load and water demand decrease are 0 13 gw and 2 9 migd per year respectively

consumer response to the reagan tax cuts abstract this paper uses micro data from the consumer expenditure survey to estimate the response of household consumption to the second and third phases of the reagan tax cuts since these phases were pre announced they allow for an unusually clean test of the canonical life cycle permanent income model consumption is found to be excessively sensitive to the tax cuts counter to the model liquidity constraints and other standard explanations do not appear to explain this excess sensitivity the consumption response is larger than previously estimated for tax refunds and more concentrated in nondurables these differences have important implications for the structure of tax changes in particular for choosing between varying withholding rates versus varying lumpy final tax payments and refunds

reform of the coal sector in an open economy the case of china cheap abundant and easy to transport and store coal has been produced and consumed to meet people s energy needs the last decade s growth in global coal use has been driven mainly by developing economies like china whose phenomenal economic growth has been powered by coal fired electricity and promoted by the export of manufactured goods a recent reform focus in china s coal sector is on coal taxation the paper develops a game theoretic model tailored to the context of china where coal taxation reform takes place against the background of privatisation of coal firms and an open economy it finds that the adoption of special coal taxes is optimal for social welfare under most circumstances but may induce coal firms to commit opportunistic behaviour in the process of privatisation the paper also cautions about potential resistance to the reform from consumers coal firms and government officials

forecasting electricity consumption in pakistan the way forward growing shortfall of electricity in pakistan affects almost all sectors of its economy for proper policy formulation it is imperative to have reliable forecasts of electricity consumption this paper applies holt winter and autoregressive integrated moving average arima models on time series secondary data from 1980 to 2011 to forecast total and component wise electricity consumption in pakistan results reveal that holt winter is the appropriate model for forecasting electricity consumption in pakistan it also suggests that electricity consumption would continue to increase throughout the projected period and widen the consumption production gap in case of failure to respond the issue appropriately it further reveals that demand would be highest in the household sector as compared to all other sectors and the increase in the energy generation would be less than the increase in total electricity consumption throughout the projected period the study discuss various options to reduce the demand supply gap and provide reliable electricity to different sectors of the economy

disaggregate energy consumption employment and income in turkey the purpose of this paper is to contribute to literature on energy consumption and economic growth relationship by examining how much of the variance in national income growth can be explained by the growth of different sources of energy consumption and employment in turkey we use the recently developed generalized forecast error variance decomposition technique of koop et al j econom 74 1996 119 and pesaran and shin econ lett 58 1998 17 to determine the information content of the growth rate of energy consumption waste seems to have the largest initial impact followed by oil however over a 3 year horizon lignite appears to explain the largest forecast error variance of gdp the total energy consumption explains 21 of forecast error variance of gdp energy consumption appears to be almost as important as employment in turkey therefore policy makers may be interested in identifying the energy dependencies of economic growth in allocating the energy investment budget

forest loss monetary compensation and delayed re planting the effects of unpredictable land tenure in china abstract over the past 65 years forest tenure in china has oscillated unpredictably between private and village property regimes this policy induced uncertainty has distorted the harvesting decisions of individuals granted rights to grow trees and has lowered the value of china s forest output we provide an analytical framework for assessing these effects quantitatively understanding the consequences of this policy induced uncertainty is particularly important since china is currently engaged in an ambitious plan to increase its domestic supply of timber to conduct this analysis we extend the literature on forestry economics when there is a risk of loss due to forest fire or pests we 1 take account of the possibility that replanting can only resume after an interval of uncertain length with immediate replanting as a special case 2 investigate the effects of compensation for such losses based only on the net value of the stand of trees at the time of the loss and 3 compare it to compensation that would leave the wealth and rotation decisions of the farmer unaffected by the presence of uncertainty

contractual responses to the common pool prorationing of crude oil production this paper examines bargaining among firms to mitigate rent dissipation following the major oil discoveries of 1926 35 because of high bargaining costs firms chose prorationing instead of consolidation and unitization and success varied the analysis also shows that prorationing took the form it did because concession such as per well quotas were required to draw in small operations and the quotas led to predictable responses regarding rent dissipation prorationing despite its costs controlled total field production and costs conserved natural reservoir energies and lengthened field life when private agreements failed the parties successfully appealed for state enforcement since similar heterogeneities influnce regulations elsewhere in the economy detailed analysis of bargaining among firms is essential for insight into the emergence of various institutional forms 33 references 3 tables

fiscal policy banks and the financial crisis this paper studies the effectiveness of euro area ea fiscal policy during the recent financial crisis using an estimated new keynesian model with a bank a key dimension of policy in the crisis was massive government support for banks that dimension has so far received little attention in the macroeconomics literature we use the estimated model to analyze the effects of bank asset losses of government support for banks and other fiscal stimulus measures in the ea our results suggest that support for banks had a stabilizing effect on ea output consumption and investment increased government purchases helped to stabilize output but crowded out consumption higher transfers to households had a positive impact on private consumption but a negligible effect on output and investment banking shocks and increased government spending explain half of the rise in the public debt gdp ratio since the onset of the crisis

energy consumption and gdp causality relationship in g 7 countries and emerging markets abstract the causality relationship between energy consumption and income is a well studied topic in energy economics this paper studies the time series properties of energy consumption and gdp and reexamines the causality relationship between the two series in the top 10 emerging markets excluding china due to lack of data and g 7 countries we discover bi directional causality in argentina causality running from gdp to energy consumption in italy and korea and from energy consumption to gdp in turkey france germany and japan hence energy conservation may harm economic growth in the last four countries

endogenous market structures in the credit market and ricardian equivalence we analyze the impact of imperfect competition in banking on fiscal policy in a dynamic model in an exchange two period economy the impact of deficit spending is to reduce private consumption and increase the spread between deposit and lending rates the reason is that a tax cut forces consumers to save more and makes their supply of savings more rigid which softens competition between banks leading to lower rates on deposits and a more than proportional increase in savings in a closed production economy this reduces the equilibrium interest rate on borrowers which promotes private investment

improvement of energy demand forecasts using swarm intelligence the case of turkey with projections to 2025 the energy supply and demand should be closely monitored and revised the forecasts to take account of the progress of liberalization energy efficiency improvements structural changes in industry and other major factors medium and long term forecasting of energy demand which is based on realistic indicators is a prerequisite to become an industrialized country and to have high living standards energy planning is not possible without a reasonable knowledge of past and present energy consumption and likely future demands energy demand management activities should bring the demand and supply closer to a perceived optimum turkey s energy demand has grown rapidly almost every year and is expected to continue growing however the energy demand forecasts prepared by the turkey ministry of energy and natural resources overestimate the demand recently many studies are performed by researchers to forecast the energy demand of turkey particle swarm optimization pso technique has never been used for such a study in this study a model is proposed using pso based energy demand forecasting psoedf to forecast the energy demand of turkey more efficiently although there are other indicators as well gross domestic product gdp population import and export are used as basic energy indicators of energy demand in order to show the accuracy of the algorithm a comparison is made with the ant colony optimization aco energy demand estimation model which is developed for the same problem

international capital flows and the boom bust cycle in spain we study the joint dynamics of foreign capital flows and real activity during the recent boom bust cycle of the spanish economy using a three country new keynesian model with credit constrained households and firms a construction sector and a government we estimate the model using 1995q1 2013q2 data for spain the rest of the euro area rea and the rest of the world we show that falling risk premia on spanish housing and non residential capital a loosening of collateral constraints for spanish households and firms as well as a fall in the interest rate spread between spain and the rea fuelled the spanish output boom and the persistent rise in foreign capital flows to spain before the global financial crisis during and after the global financial crisis falling house prices and a tightening of collateral constraints for spanish borrowers contributed to a sharp reduction in capital inflows and to the persistent slump in spanish real activity the credit crunch was especially pronounced for spanish households firm credit constraints tightened later and more gradually and contributed much less to the slump

the supply of non renewable resources there exists no formal treatment of non renewable resource nrr supply systematically deriving quantity as function of price we establish instantaneous restricted fixed reserves and unrestricted nrr supply functions the supply of a nrr at any date and location not only depends on the local contemporary price of the resource but also on prices at all other dates and locations besides the usual law of supply which characterizes the own price effect cross price effects have their own law they can be decomposed into a substitution effect and a stock compensation effect we show that the substitution effect always dominates a price increase at some point in space and time causes nrr supply to decrease at all other points this new but orthodox supply setting extends to nrrs the partial equilibrium analysis of demand and supply policies thereby it provides a generalization of many results about policy induced changes on nrr markets the properties of restricted and unrestricted supply functions are characterized for hotelling homogeneous as well as ricardian non homogeneous reserves for a single deposit as well as for several deposits that endogenously come into production or cease to be active

household expenditure and the income tax rebates of 2001 using questions expressly added to the consumer expenditure survey we estimate the change in consumption expenditures caused by the 2001 federal income tax rebates and test the permanent income hypothesis we exploit the unique randomized timing of rebate receipt across households households spent 20 to 40 percent of their rebates on nondurable goods during the three month period in which their rebates arrived and roughly two thirds of their rebates cumulatively during this period and the subsequent three month period the implied effects on aggregate consumption demand are substantial consistent with liquidity constraints responses are larger for households with low liquid wealth or low income

when will fossil fuel reserves be diminished crude oil coal and gas are the main resources for world energy supply the size of fossil fuel reserves and the dilemma that when non renewable energy will be diminished is a fundamental and doubtful question that needs to be answered this paper presents a new formula for calculating when fossil fuel reserves are likely to be depleted and develops an econometrics model to demonstrate the relationship between fossil fuel reserves and some main variables the new formula is modified from the klass model and thus assumes a continuous compound rate and computes fossil fuel reserve depletion times for oil coal and gas of approximately 35 107 and 37 years respectively this means that coal reserves are available up to 2112 and will be the only fossil fuel remaining after 2042 in the econometrics model the main exogenous variables affecting oil coal and gas reserve trends are their consumption and respective prices between 1980 and 2006 the models for oil and gas reserves unexpectedly show a positive and significant relationship with consumption while presenting a negative and significant relationship with price the econometrics model for coal reserves however expectedly illustrates a negative and significant relationship with consumption and a positive and significant relationship with price consequently huge reserves of coal and low level coal prices in comparison to oil and gas make coal one of the main energy substitutions for oil and gas in the future under the assumption of coal as a clean energy source

optimal management of strategic reserves of nonrenewable natural resources abstract this paper studies the stockpiling issue for an oil importing country that is likely to suffer embargoes the occurrence and duration of which are uncertain i show the existence of a decreasing reserves path that the country wants to attain in order to hedge against these disruptions allowing the importing country to invest in r d in order to free itself from the embargo threat i determine the optimal effort that should be engaged in research the incentive to develop a backstop is shown to increase with the depletion of the reserves

supply management with intermittent trade disruptions when the probabilities are not fully known abstract previous studies of trade disruptions have assumed that the probabilistic transition rates between normal and disrupted markets are known this may be unreasonable if disruptions occur infrequently in this paper a bayesian procedure for estimating the transition rates is derived under the assumption that the transition processes are exogenous and poisson the procedure is applied to the problem of managing emergency reserves in an import dependent economy time consistent plans for consuming and replenishing reserves are derived optimal reserves are found to be generally larger than if the transition rates were known and equal to current expected values

on the optimal order of natural resource use when the capacity of the inexhaustible substitute is limited consider a general equilibrium framework where the marginal cost of extraction from several deposits of an exhaustible resource is constant in terms of an inexhaustible perfect substitute and differs between deposits the instantaneous rate of production form the inexhaustible resource is subject to a capacity constraint

africa energy future alternative scenarios and their implications for sustainable development strategies abstract the long term forecasting of energy supply and demand is of prime importance in africa due to the steady increase in energy requirements the non availability of sufficient resources the high dependence on fossil fuels to meet these requirements and the global concerns over the energy induced environmental issues this paper is concerned with modelling possible future paths for africa s energy future and the related emissions future energy demand is forecasted based on socio economic variables such as gross domestic product income per capita population and urbanisation the long range energy alternative planning system leap modelling framework is employed to analyse and project energy demand and the related emissions under alternative strategies for the period of 2010 2040 results of scenarios including business as usual bau policies moderate energy access and accelerate energy access policies renewable energies promotion and energy efficiency policies and their environmental implications are provided the study provides some policy insights and identifies synergies and trade offs relating to the potential for energy policies to promote universal energy access enable a transition to renewable energy and mitigate climate change for a sustainable development

forecasting nord pool day ahead prices with an autoregressive model abstract this paper presents a model to forecast nord pool hourly day ahead prices the model is based on weron and misiorek 2008 but reduced in terms of estimation parameters from 24 sets to 1 and modified to include nordic demand and danish wind power as exogenous variables we model prices across all hours in the analysis period rather than across each single hour of 24 hours by applying three model variants on nord pool data we achieve a weekly mean absolute percentage error wmae of around 6 7 and an hourly mean absolute percentage error mape ranging from 8 to 11 out of sample results yields a wmae and an hourly mape of around 5 the models enable analysts and traders to forecast hourly day ahead prices accurately moreover the models are relatively straightforward and user friendly to implement they can be set up in any trading organization

on the intergenerational allocation of natural resources it is known hartwick and others that under standard assumptions a society that invests in reproducible capital the competitive rents on its current extraction of exhaustible resources will enjoy a consumption stream constant in time it is shown here that this result can be interpreted as saying that an appropriately defined stock of capital including the initial endowment of resources is being maintained intact and that consumption can be interpreted as the interest on that patrimony this seems like a useful rule of thumb for policy

fiscal policy in a financial crisis standard policy versus bank rescue measures a key dimension of fiscal policy during the financial crisis was massive government support for the banking system the macroeconomic effects of that support have so far received little attention in the literature this paper fills this gap using a quantitative dynamic model with a banking sector our results suggest that state aid for banks may have a strong positive effect on real activity bank state aid multipliers are in the same range as conventional fiscal spending multipliers support for banks has a positive effect on investment while a rise in government purchases crowds out investment

optimal transition from coal to gas and renewable power under capacity constraints and adjustment costs this paper studies the optimal transition from existing coal power plants to gas and renewable power under a carbon budget it solves a model of polluting exhaustible resources with capacity constraints and adjustment costs to build coal gas and renewable power plants it finds that optimal investment in renewable energy may start before coal power has been phased out and even before investment in gas has started because doing so allows for smoothing investment over time and reduces adjustment costs gas plants may be used to reduce short term investment in renewable power and associated costs but must eventually be phased out to allow room for carbon free power one risk for myopic agents comparing gas and renewable investment is thus to overestimate the lifetime of gas plants e g when computing the levelized cost of electricity and be biased against renewable power these analytical results are quantified with numerical simulations of the european commission s 2050 energy roadmap

global banks financial shocks and international business cycles evidence from an estimated model this paper estimates a two country model with a global bank using us and euro area ea data and bayesian methods the estimated model matches key us and ea business cycle statistics empirically a model version with a bank capital requirement outperforms a structure without such a constraint a loan loss originating in one country triggers a global output reduction banking shocks matter more for ea macro variables than for us real activity during the great recession 2007 09 banking shocks accounted for about 20 of the fall in us and ea gdp and for more than half of the fall in ea investment and employment

monopolistic recycling of oil revenue and intertemporal bias in oil depletion and trade this paper investigates oil depletion and trade when monopolistic oil producers also exercise monopoly power in the capital market a two period model views collusively organized oil producers with an initial trade surplus and a subsequent deficit when monopoly power in the capital market is applied to the disadvantage of borrowers less oil is initially made available to oil importers than if the interest rate had been competitively determined this depletion bias however is reversed if because of incentives for capital accumulation it is to the advantage of the oil producers to subsidize lending to the oil importers in either case the bias in oil depletion due to monopolistic recycling of oil revenue is greater the more vulnerable are oil importer s incomes to a curtailment of oil supplies 25 references

the grey paradox how fossil fuel owners can benefit from carbon taxation abstract this paper considers the distributional impact of optimal carbon taxation on fossil fuel owners a carbon emitting exhaustible resource competes with a dirtier abundant resource and a clean backstop a time dependent carbon tax is set to optimally use these resources under a cap constraint over co 2 atmospheric concentration as the cap is tightened the dirtier resource becomes less competitive compared to the exhaustible resource the competition effect but the timing and duration of extraction of the exhaustible resource is modified the timing effect we provide analytical expressions of these effects and determine conditions over size of reserves pollution contents extraction costs and demand elasticity such that the exhaustible resource owners profits increase as the ceiling is tightened calibrations for the transport and power sectors suggest that the profits of conventional oil and natural gas owners increase compared to a baseline without regulation for plausible carbon ceiling values

optimum responses of the current account when income is uncertain abstract how the current and capital accounts in the balance of payments should adjust when there are exogenous shocks has recently been examined in the context of optimal intertemporal choice of consumption and borrowing thus a fall in income will call forth a variety of responses depending on whether it is thought to be permanent or temporary long term or short term and on the form of the discount function in this paper uncertainty is introduced into the timing of the reversal of an income fall this being modelled by a poisson process phase diagrams are derived for the paths of consumption and debt

the general equilibrium effects of fiscal policy estimates for the euro area abstract this paper describes a dynamic stochastic general equilibrium model featuring a fraction of non ricardian agents in order to estimate the effects of fiscal policy in the euro area the model takes into account distortionary taxation on labor and capital income and on consumption while expenditures are broken down into purchases of goods and services compensation of public employees and transfers to households a newly computed quarterly data set of fiscal variables is used our results point to the prevalence of mild keynesian effects of public expenditures in particular although innovations in fiscal policy variables tend to be rather persistent government purchases of goods and services and compensations for public employees have small and short lived expansionary effects on private consumption while innovations in transfers to households show a slightly more sizeable and lasting effect the effects are more significant on the revenue side decreases in labor income and consumption tax rates have sizeable effects on consumption and output while a reduction in capital income tax favors investment and output in the medium run finally our estimates suggest that fiscal policy variables contribute little to the cyclical variability of the main macro variables

energy models for demand forecasting a review abstract energy is vital for sustainable development of any nation be it social economic or environment in the past decade energy consumption has increased exponentially globally energy management is crucial for the future economic prosperity and environmental security energy is linked to industrial production agricultural output health access to water population education quality of life etc energy demand management is required for proper allocation of the available resources during the last decade several new techniques are being used for energy demand management to accurately predict the future energy needs in this paper an attempt is made to review the various energy demand forecasting models traditional methods such as time series regression econometric arima as well as soft computing techniques such as fuzzy logic genetic algorithm and neural networks are being extensively used for demand side management support vector regression ant colony and particle swarm optimization are new techniques being adopted for energy demand forecasting bottom up models such as markal and leap are also being used at the national and regional level for energy demand management

house prices borrowing constraints and monetary policy in the business cycle i develop a general equilibrium model with sticky prices credit constraints nominal loans and asset prices changes in asset prices modify agents borrowing capacity through collateral value changes in nominal prices affect real repayments through debt deflation monetary policy shocks move asset and nominal prices in the same direction and are amplified and propagated over time the financial accelerator is not constant across shocks nominal debt stabilises supply shocks making the economy less volatile when the central bank controls the interest rate i discuss the role of equity debt indexation and household and firm leverage in the propagation mechanism finally i find that monetary policy should not target asset prices as a means of reducing output and inflation volatility

the role of bank capital in the propagation of shocks abstract the recent financial turmoil has underlined the importance of analyzing the link between banks balance sheets and economic activity we develop a dynamic stochastic general equilibrium model in which bank capital mitigates an agency problem between banks and their creditors as a result the capital position of banks affects their ability to attract loanable funds and therefore influences the business cycle through a bank capital channel of transmission we find that the bank capital channel greatly amplifies and propagates the effects of technology shocks on output investment and inflation moreover bank capital shocks create sizeable declines in output and investment

forecasting production of fossil fuel sources in turkey using a comparative regression and arima model this study aims at forecasting the most possible curve for domestic fossil fuel production of turkey to help policy makers to develop policy implications for rapidly growing dependency problem on imported fossil fuels the fossil fuel dependency problem is international in scope and context and turkey is a typical example for emerging energy markets of the developing world we developed a decision support system for forecasting fossil fuel production by applying a regression arima and sarima method to the historical data from 1950 to 2003 in a comparative manner the method integrates each model by using some decision parameters related to goodness of fit and confidence interval behavior of the curve and reserves different forecasting models are proposed for different fossil fuel types the best result is obtained for oil since the reserve classifications used it is much better defined them for the others our findings show that the fossil fuel production peak has already been reached indicating the total fossil fuel production of the country will diminish and theoretically will end in 2038 however production is expected to end in 2019 for hard coal in 2024 for natural gas in 2029 for oil and 2031 for asphaltite the gap between the fossil fuel consumption and production is growing enormously and it reaches in 2030 to approximately twice of what it is in 2000

the relative impacts of economics journals 1970 1990 our data collection and database assembly efforts were assisted by john p sophocleus mark gwartney michele butler and scott ralston we received extremely valuable computer programming assistance from jon brunson and edward novak constructive comments were receivedfrom two anonymous reviewers financial supportfrom the faculty development committee at salisbury state university is gratefully acknowledged

price setting in the euro area some stylized facts from individual producer price data this paper summarizes the microevidence on the setting of producer prices in the euro area the main findings are i 21 of producer prices are adjusted each month ii producer prices are changed more frequently and by smaller amounts than consumer prices even after controlling for product characteristics iii price decreases are relatively frequent iv inflation correlates positively with the difference between the frequency of price increases and decreases and v there is substantial variation in price flexibility across sectors which can be explained in part by differences in the cost structure the degree of competition and the level of sectoral inflation

the exchange rate in a dynamic optimizing business cycle model with nominal rigidities a quantitative investigation this paper studies a quantitative dynamic optimizing business cycle model of a small open economy with staggered price and wage setting the model exhibits exchange rate overshooting in response to money supply shocks the predicted variability of the nominal and especially of the real exchange rate is noticeably higher than in standard real business cycle models with flexible prices and wages a positive domestic money supply shock is predicted to lower the domestic interest rate raise gdp and trigger a depreciation of both the nominal and real exchange rate increases in domestic productivity and in the world interest rate are also predicted to induce a nominal and real exchange rate depreciation 2001 elsevier science b v all rights reserved

grade selection under uncertainty least cost last and other anomalies abstract grade selection rules for heterogeneous resource deposits with increasing marginal extraction costs are derived it is shown that contrary to the conventional wisdom it can be optimal to extract the least cost deposits last there are a number of rules that are compatible with dynamic profit maximization under certainty nevertheless none explains empirical regularities in actual extraction patterns when uncertainty about future price is introduced however the theoretical model conforms closely not only to observed grade selection patterns but also to observed mineral industry price paths

opec unconventional oil and climate change on the importance of the order of extraction we show that opec s market power contributes to climate change by enabling producers of relatively expensive and dirty oil to start producing before opec reserves are depleted we examine the importance of this extraction sequence effect by calibrating and simulating a cartel fringe model of the global oil market while welfare net of climate damage under the cartel fringe equilibrium can be significantly lower than under a first best outcome almost the entire welfare loss is due to the sequence effect of opec s market power in our benchmark calibration the cost of the sequence effect amounts to 15 trillion us which corresponds to 97 percent of the welfare loss moreover we find that an increase in non opec oil reserves decreases global welfare in a counterfactual world without non opec oil global welfare would be 13 trillion us higher 10 trillion us of which is due to lower climate damages

the failure of china s energy development strategy 2050 and its impact on carbon emissions china is the world s largest energy consumer and emitter of carbon china s energy development strategy is thus of great significance to the world s energy security and global carbon reduction target in this study the implementation of china s energy development strategy 2050 eds2050 which has been in operation since 1985 is investigated this study analyzes the causes of the failure of eds2050 and the impacts of that failure on carbon emissions the results show the following 1 eds2050 basically failed in 2010 and the strategic planning values of primary energy consumption and production were underestimated compared with the actual values by 39 and 67 respectively 2 comparing the predicted values of basic parameters in eds2050 with the actual values in the production field the main causes of failure were the underestimation of the economic growth rate and the proportion of non agricultural industries while in the living field the main causes were the underestimation of urbanization and per capita energy consumption in rural areas further analyses of various provinces demonstrated that the major factors leading to eds2050 failure include the economic growth rate urbanization population growth and the growth in car ownership 3 eds2050 failure resulted in an increase in carbon emissions in 2010 of 583 50 x 10 6 tc and increases of per capita carbon emissions reached 46 49 47 04 carbon emissions per unit of output demonstrated a reduction which was as a result of technological progress improving energy efficiency optimizing energy utilization and promoting national energy conservation should be highly emphasized in china s future sustainable energy development strategy c 2015 elsevier ltd all rights reserved

an econometrics view of worldwide fossil fuel consumption and the role of us crude oil coal and gas known as fossil fuels play a crucial role in the global economy this paper proposes new econometrics modelling to demonstrate the trend of fossil fuels consumption the main variables affecting consumption trends are world reserves the price of fossil fuels us production and us net imports all variables have been analysed individually for more than half a century the research found that while the consumption of fossil fuels worldwide has increased trends in the us production and net imports have been dependent on the type of fossil fuels most of the us coal and gas production has been for domestic use which is why it does not have a strong influence on worldwide fossil fuel prices moreover the reserves of fossil fuels have not shown any diminution during the last couple of decades and predictions that they were about to run out are not substantiated the nominal and real price of fossil fuels was found to change depending on the type finally estimates of three econometric models for the consumption of fossil fuels from 1949 to 2006 are presented which identify the effects of significant variables

financial spillover and global risk in a multi region model of the world economy abstract this paper estimates a three region dsge model ea us row with international financial linkages in the form of cross border equity holding and allowing for region specific as well as global financial shocks which match empirical measures of financial tightness and global stock market valuation spillover from financial shocks increases with international financial integration and is practically zero under full home bias in normal times the global risk captures international synchronisation of financial cycles spillover of financial shocks is amplified at the zero lower bound at which investment risk takes on the characteristics of a general uncertainty shock the model results suggest that integrated financial markets should provide a powerful motivation for international policy coordination to prevent financial turmoil

opec behavior a test of alternative hypotheses since interpretations of past and future oil price patterns depends on the model chosen the author tests and compares alternative theories of opec as a first step in validating the choice on any one model the results show that among opec countries the partial market sharing cartel model is the only model not rejected by at least some of the 11 members and gives the best explanation of production in comparison with 11 non opec countries the competitive model could not be rejected for 10 of the 11 non opec producers this raises the question of why if opec is a cartel friedman s predictions have not come true and introduces new questions for future research 19 references 3 tables

forecasting monthly peak demand of electricity in india a critique the nature of electricity differs from that of other commodities since electricity is a non storable good and there have been significant seasonal and diurnal variations of demand under such condition precise forecasting of demand for electricity should be an integral part of the planning process as this enables the policy makers to provide directions on cost effective investment and on scheduling the operation of the existing and new power plants so that the supply of electricity can be made adequate enough to meet the future demand and its variations official load forecasting in india done by central electricity authority cea is often criticized for being overestimated due to inferior techniques used for forecasting this paper tries to evaluate monthly peak demand forecasting performance predicted by cea using trend method and compare it with those predicted by multiplicative seasonal autoregressive integrated moving average msarima model it has been found that msarima model outperforms cea forecasts both in sample static and out of sample dynamic forecast horizons in all five regional grids in india for better load management and grid discipline this study suggests employing sophisticated techniques like msarima for peak load forecasting in india

modelling and forecasting turkish residential electricity demand abstract this research investigates the relationship between turkish residential electricity consumption household total final consumption expenditure and residential electricity prices by applying the structural time series model to annual data over the period from 1960 to 2008 household total final consumption expenditure real energy prices and an underlying energy demand trend are found to be important drivers of turkish residential electricity demand with the estimated short run and the long run total final consumption expenditure elasticities being 0 38 and 1 57 respectively and the estimated short run and long run price elasticities being 0 09 and 0 38 respectively moreover the estimated underlying energy demand trend which as far as is known has not been investigated before for the turkish residential sector should be of some benefit to turkish decision makers in terms of energy planning it provides information about the impact of past policies the influence of technical progress the impacts of changes in consumer behaviour and the effects of changes in economic structure furthermore based on the estimated equation and different forecast assumptions it is predicted that turkish residential electricity demand will be somewhere between 48 and 80 twh by 2020 compared to 40 twh in 2008

the savers spenders theory of fiscal policy the macroeconomic analysis of fiscal policy is usually based on one of two canonical models the barro ramsey model of infinitely lived families or the diamond samuelson model of overlapping generations this paper argues that neither model is satisfactory and suggests an alternative in the proposed model some consumers plan ahead for themselves and their descendants while others live paycheck to paycheck this model is easier to reconcile with the essential facts about consumer behavior and wealth accumulation and it yields some new and surprising conclusions about fiscal policy

on measuring the welfare cost of business cycles lucas 1987 argues that the gain from eliminating aggregate fluctuations is trivial following lucas a number of researchers have altered assumptions on preferences and found that the gain from eliminating business cycles are potentially very large however in these exercises little discipline is placed on preference parameters this paper estimates the welfare cost of business cycles allowing for potential time non separabilities in preferences where discipline is placed on the choice of preference parameters by requiring that the preferences be consistent with observed fluctuations in a model of business cycles that is a theoretical real business cycle world is constructed and the representative agent is then placed in this world the agent responds optimally to exogenous shocks given the frictions in the economy the agent s preference parameters along with other structural parameters are estimated using a bayesian procedure involving markov chain monte carlo methods two main results emerge from the paper first the form for the time non separability estimated in this paper is very different than the forms suggested and used elsewhere in the literature second the welfare cost of business cycles is close to lucas s estimate

is public expenditure productive abstract this paper considers the relationship between aggregate productivity and stock and flow government spending variables the empirical results indicate that i the nonmilitary public capital stock is dramatically more important in determining productivity than is either the flow of nonmilitary or military spending ii military capital bears little relation to productivity and iii a core infrastructure of streets highways airports mass transit sewers water systems etc has most explanatory power for productivity the paper also suggests an important role for the net public capital stock in the productivity slowdown of the last fifteen years

intertemporal depletion of resource sites by spatially distributed users mineral deposits and other exhaustible resources are scattered around the globe as are their users yet the theory for analyzing depletion of such resources assumes that all resource sites and all users are located in the same place when applying the theory therefore one is forced to disregard what often seems to be an important real world consideration our purpose here is to generalize harold hotelling s 1931 theory of exhaustible resources to accommodate situations in which resource sites and their users are spatially distributed our analysis has many applications it can be applied to a conventional exhaustible resource like oil alternatively it can be applied to an unconventional exhaustible resource like scarce landfill space shipments of solid waste to landfills in other states or countries have become a prominent public policy issue eduardo ley et al 2000 finally our analysis can be applied in situations where the space reflects not geographical location but characteristics of the resource e g the sulfur content hardness and so forth of coal which users find distinctive 2 only two theoretical papers in resource economics have introduced spatial considerations 3 jean jacques laffont and michel moreaux 1986 studied the extraction of resources from sites located along a line segment with all users at one end charles kolstad 1994 was the first to consider spatially distributed users in his formulation consumers are distributed uniformly along a line segment with resource sites at each end kolstad s approach although innovative requires that the set of users be parti

the recent boom bust cycle the relative contribution of capital flows credit supply and asset bubbles abstract we use an estimated open economy dsge model with financial frictions for the us and the rest of the world to evaluate various competing explanations about the recent boom bust cycle we find that the savings glut hypothesis is insufficient for explaining all aspects of the boom in the us relatively strong tfp growth and expansionary monetary policy are also not able to explain fully the volatility of corporate and in particular residential investment we identify bubbles in the stock and housing market as crucial concerning the downturn in 2008 2009 the fall in house prices and residential investment only plays a minor role mortgage defaults have more explanatory power especially in a specification of the model with a segregated equity market finally the bursting of the stock market bubble was at least as important in this recession as in 2001 because of various negative shocks hitting the economy at the same time in 2008 2009 and continued positive technology growth not only the real interest rate declined but inflation fell rapidly and left insufficient room for monetary policy to play a similar stabilising role as in previous recessions

the efficient use of multiple sources of a nonrenewable resource under supply cost uncertainty whereas in a deterministic world leaving a high cost source of a nonrenewable resource untouched as long as a less costly source is available is always efficient this may not be the case in a stochastic world conditions are derived under which it can be efficient to use a risky supply source in order to conserve a cheaper nonrisky source or to use a costly nonrisky source while a less costly risky source is still available a supply embargo can be interpreted as a limiting case the nonrisky source can be reinterpreted as an artificial stockpile

what drives the german current account and how does it affect other eu member states we estimate a three country model using 1995 2013 data for germany the rest of the euro area rea and the rest of the world row to analyse the determinants of germany s current account ca surplus after the launch of the euro our results suggest that the german surplus reflects a succession of distinct shocks mono causal explanations of the surplus are thus insufficient the most important factors driving the german surplus were positive shocks to the german saving rate and to row demand for german exports as well as german labour market reforms and other positive german aggregate supply shocks the key shocks that drove the rise in the german ca tended to worsen the rea trade balance but had a weak effect on rea real activity our analysis suggests these driving factors are likely to be slowly eroded leading to a very gradual reduction of the german ca surplus an expansion in german government consumption and investment would raise german gdp and reduce the ca surplus but the effects on the surplus would be weak

dynamic policy coordination stockpiling for energy security abstract this paper looks at the problem of coordinating the use of oil stockpiles during a disruption in the world oil market when an individual country s actions affect the market price we model the problem as a dynamic game between two oil importing nations when the disruption is expected to persist at the same intensity we show that there are no benefits to coordination more generally however the noncooperative equilibrium will differ from the cooperative one we characterize the benefits from cooperation and determine the key parameters on which they depend

vision 2023 forecasting turkey s natural gas demand between 2013 and 2030 abstract natural gas is the primary source for electricity production in turkey however turkey does not have indigenous resources and imports more than 98 0 of the natural gas it consumes in 2011 more than 20 0 of turkey s annual trade deficit was due to imported natural gas estimated at us 20 0 billion turkish government has very ambitious targets for the country s energy sector in the next decade according to the vision 2023 agenda previously we have estimated that turkey s annual electricity demand would be 530 000 gwh at the year 2023 considering current energy market dynamics it is almost evident that a substantial amount of this demand would be supplied from natural gas however meticulous analysis of the vision 2023 goals clearly showed that the information about the natural gas sector is scarce most importantly there is no demand forecast for natural gas in the vision 2023 agenda therefore in this study the aim was to generate accurate forecasts for turkey s natural gas demand between 2013 and 2030 for this purpose two semi empirical models based on econometrics gross domestic product gdp at purchasing power parity ppp per capita and demographics population change were developed the logistic equation which can be used for long term natural gas demand forecasting and the linear equation which can be used for medium term demand forecasting fitted to the timeline series almost seamlessly in addition these two models provided reasonable fits according to the mean absolute percentage error mape criteria turkey s natural gas demand at the year 2030 was calculated as 76 8 billion m 3 using the linear model and 83 8 billion m 3 based on the logistic model consequently found to be in better agreement with the official turkish petroleum pipeline corporation botas forecast 76 4 billion m 3 than results published in the literature

oil prices and current account a structural analysis for the turkish economy abstract although there has been an increasing number of studies about the effects of oil prices on the macroeconomic performances the literature on the interaction between oil prices and current account is limited especially for oil importing developing countries this paper analyzes the impact of oil prices on the current account balances for the turkish economy using a structural vector autoregression model our model allows us to identify the net effect of oil prices on current account balances after controlling for other factors such as output gap and exchange rate misalignment the results show that the response of current account ratio to oil price shock increases gradually up to the first three months and then starts to decrease which indicates a significant effect of oil price shocks in the short run moreover when the obtained structural shocks are employed in a simple regression analysis the parameter regarding the oil price shocks is found to be negative and statistically significant the final section discusses the policy implications of the results

industrial electricity demand for turkey a structural time series analysis abstract this research investigates the relationship between turkish industrial electricity consumption industrial value added and electricity prices in order to forecast future turkish industrial electricity demand to achieve this an industrial electricity demand function for turkey is estimated by applying the structural time series technique to annual data over the period 1960 to 2008 in addition to identifying the size and significance of the price and industrial value added output elasticities this technique also uncovers the electricity underlying energy demand trend uedt for the turkish industrial sector and is as far as is known the first attempt to do this the results suggest that output and real electricity prices and a uedt all have an important role to play in driving turkish industrial electricity demand consequently they should all be incorporated when modelling turkish industrial electricity demand and the estimated uedt should arguably be considered in future energy policy decisions concerning the turkish electricity industry the output and price elasticities are estimated to be 0 15 and 0 16 respectively with an increasing but at a decreasing rate uedt and based on the estimated equation and different forecast assumptions it is predicted that turkish industrial electricity demand will be somewhere between 97 and 148 twh by 2020

embargo threats and the management of emergency reserves this paper develops a model of a country that can import oil in normal times but is subject to random trade disruptions to mitigate the effects of these disruptions some of the imported oil is stockpiled there are two kinds of uncertainty involved the date at which an embargo will be imposed is not known in advance and given that an embargo has been imposed the date at which it will end is uncertain optimal behavior is analyzed by means of dynamic programming 13 references

pricing and depletion of an exhaustible resource when there is anticipation of trade disruption this paper considers pricing and depletion of an exhaustible nonrenewable resource in an economy wherein domestic consumption is provided for by supplementing extraction from the economy s own resource stock with imports the future supply of which is not assured the socially optimal response to threat of trade disruption is a more conservationist depletion program for the domestic resource stock than would be called for if import supplies were assured to persist competitive domestic firms adopt the socially optimal conversationist program however firms anticipating domestic market power after the disruption of import supplies are revealed to overextract the domestic resource stock 33 references 2 figures

when additional resource stocks reduce welfare in the dominant firm model we show that an increase of the fringe s reserves of a nonrenewable resource may lead to a decrease in aggregate discounted social welfare this happens when the difference between the fringe s extraction cost and the dominant firm s is positive and large enough we also show that welfare might decrease if the fringe s marginal extraction cost decreases

india s dependence on foreign oil will exceed 90 around 2025 the forecasting results based on two hybridized nmgm arima and nmgm bp models abstract few study has been conducted to forecast india s dependence on foreign oil although india is the world s third largest oil consumer and exporter making it a key player in the oil market this work is aimed to accurately forecast india s dependence on foreign oil to develop better forecasting techniques this study used linear auto regressive integrated moving average arima and nonlinear back propagation bp to correct nonlinear metabolic grey model nmgm forecasting residuals in three steps i integrating the metabolic idea with a nonlinear grey model to develop nmgm ii integrating the proposed nmgm with arima to develop nmgm arima and iii integrating the proposed nmgm with bp to develop nmgm bp to further improve forecasting accuracy this work forecasted the india s dependence on foreign oil from two perspectives i direct forecasting the change of ratio of imports oil to total oil consumption in india ii indirect forecasting i e the difference between the forecasted oil consumption and production was divided by the forecasted oil production the proposed nmgm arima and nmgm bp were used to fit the india s dependence on foreign oil for 1995 2017 and forecast the data for 2018 2030 the mean relative error of the proposed forecasting models was around 1 5 which could produce a convincing forecasting results our forecasting results show that india s dependence on foreign oil will reach 90 around 2025 which poses serious challenge to indian oil security and the global oil market

regional integration as diplomacy regional integration agreements rias are examples of second best and have an ambiguous impact on welfare contend the authors they build a model in which rias unambiguously raise welfare by correcting for externalities it assumes that trade between neighboring countries increases trust between them and reduces the likelihood of conflict the optimum intervention in that case is a subsidy on imports from the neighbor the authors show that an equivalent solution is for the neighboring countries to tax imports from the rest of the world that is to form an ria together with imposing some domestic taxes in fact security threats have moved neighboring countries to form rias examples include the creation of the european coal and steel community 1951 and the european economic community 1957 to reduce the threat of war in europe as well as various rias among developing countries the authors show among other things that 1 the optimum tariffs on imports from the rest of the world are likely to decline over time 2 deep integration implies lower optimum external tariffs if it is exogenous 3 but if deep integration is endogenous it implies higher optimum external tariffs before it occurs and lower ones thereafter and 4 enlargement of a bloc in terms of symmetric countries has an ambiguous impact on external tariffs but improves welfare and some form of domino effect exists in the sense that enlargement increases the incentive for nonmembers to seek accession although externalities associated with security matters imply that an ria may maximize welfare this model suggests that the ria is a transitory arrangement in the sense that optimum trade preferences are highest at the time the ria is formed when security is low and tend to decline over time in other words the ria s external trade policy becomes increasingly open over time as well as following deep integration

transboundary pollution game with potential shift in damages abstract complex systems exposed to pollution may suddenly and permanently shift to a dangerous regime this paper studies a dynamic game among countries that face the prospect of such a shift each country derives some flow utility from its own emissions which are chosen unilaterally but flow emissions by all countries increase the pollution stock in the world in addition to generating global damages such as global warming the pollution stock may trigger an irreversible and abrupt jump in global damages or catastrophe at an unknown date in the future we ask whether endogenous and exogenous threats of such a jump in damages or catastrophe mitigate the tragedy of the commons and examine their implications on welfare our analysis yields different emission responses to these threats as compared to the related literature that focuses only on the single polluter case for example when the hazard rate is exogenous and countries commit to nonlinear strategies we find that the threat of a possible jump in damages or catastrophe may induce a lower or larger emission level and initial welfare due to multiple equilibria these results are maintained when the hazard rate endogenously depends on emission decisions

arima forecasting of primary energy demand by fuel in turkey abstract forecasting of energy demand in emerging markets is one of the most important policy tools used by the decision makers all over the world in turkey most of the early studies used include various forms of econometric modeling however since the estimated economic and demographic parameters usually deviate from the realizations time series forecasting appears to give better results in this study we used the autoregressive integrated moving average arima and seasonal arima sarima methods to estimate the future primary energy demand of turkey from 2005 to 2020 the arima forecasting of the total primary energy demand appears to be more reliable than the summation of the individual forecasts the results have shown that the average annual growth rates of individual energy sources and total primary energy will decrease in all cases except wood and animal plant remains which will have negative growth rates the decrease in the rate of energy demand may be interpreted that the energy intensity peak will be achieved in the coming decades another interpretation is that any decrease in energy demand will slow down the economic growth during the forecasted period rates of changes and reserves in the fossil fuels indicate that inter fuel substitution should be made leading to a best mix of the country s energy system based on our findings we proposed some policy recommendations

fiscal policy and the great recession in the euro area how much did fiscal policy contribute to euro area real gdp growth during the great recession we estimate that discretionary fiscal measures have increased annualized quarterly real gdp growth during the crisis by up to 1 6 percentage points we obtain our result by using an extended version of the european central bank s new area wide model with a rich specification of the fiscal sector a detailed modeling of the fiscal sector and the incorporation of as many as eight fiscal time series appear pivotal for our result

structural break unit root and the causality between energy consumption and gdp in turkey abstract this paper tries to investigate a series of unit root and causality tests to detect causality between the gdp and energy consumption in turkey employing hsiao s version of granger causality method for the 1950 2000 period the conventional unit root tests indicate the series are i 1 whereas the endogenous break unit root tests proposed by zivot and andrews zivot e and andrews d w k 1992 further evidence on the great crash the oil price shock and the unit root hypothesis journal of business and economics statistics 10 251 270 and perron perron p 1997 further evidence on breaking trend functions in macroeconomic variables journal of econometrics 80 355 385 reveal that the series are trend stationary with a structural break therefore it is inappropriate to take the first difference of the data to achieve stationarity the main conclusion of this study is that there is no evidence of causality between energy consumption and gdp in turkey based on the detrended data

the impact of global warming on agriculture reply in our paper with daigee shaw mendelsohn et al 1994 henceforth mns we developed a new approach to measuring the impact of global warming on agriculture we call this approach ricardian because it relies upon standard rent theory as a way of identifying the impact of changes on net economic welfare we compared the ricardian approach with the traditional production function approach which uses agricultural production functions but has great difficulty identifying all the other adjustments that farmers make in response to changing external conditions the ricardian approach is particularly well suited to a tremendously heterogeneous sector because it can rely upon reduced form estimation and does not require the impossible task of constructing structural models of hundreds of crops in thousands of locations estimating the model using cross sectional data on climate farm land prices and other economic and geophysical data for almost 3 000 counties in the united states the ricardian approach shows a significantly lower estimated impact of global warming than the traditional productionfunction approach indeed our preferred statistical approach showed modest benefits of climate change in his comment on mns in this issue of the review william r cline 1996 raises three concerns first he notes that the analysis assumes that output prices remain constant second he asserts that the analysis assumes that the supply of water for irrigation is perfectly elastic third he calls for testing the results of the model on alternative climate scenarios from general circulation models gcm s his first and third points are useful additions while the second is incorrect our ricardian approach assumes that the existing pattern of agricultural land rents and land prices reflects the long run equilibrium economic effect of climate and other geophysical and economic variables standard economic reasoning shows that by calculating the estimated effects of perturbing the climatic variables we can project the impact of climate change on economic welfare we do so in a partial equilibrium approach which assumes that output prices are invariant to the climate and cline is correct to point out that this might lead to biased estimates because the partialequilibrium estimates tend to underestimate damages and overestimate benefits in fact the bias is small given standard parameters for agricultural demand and supply functions we illustrate this point using linear supply and demand functions for agricultural crops let demand be given by qd ao a1p while supply is q po pi p where q and p are output and price and ai and i are parameters in equilibrium at the old climate market outcomes are qo and po now suppose that global warming contracts supply so that

a regional dynamic general equilibrium model of alternative climate change strategies outcomes and noncooperative equilibria this study finds that cooperative policies show much higher levels of emissions reductions than do noncooperative strategies that there are substantial differences in the levels of controls in both the cooperative and the noncooperative policies among different countries and that high income countries may be the major losers from cooperation jel h41 q4 q2 q20

energy and depletable resources economics and policy 1973 1998 abstract this paper reviews the impact of the literature in depletable resources and energy economics over the period 1973 1998 particularly the initial period of publication of the journal of environmental economics and management 1974 1998 a discussion of prominent policy issues in this arena is provided along with an indication of what academic economics papers have contributed to that debate this is followed by a citation analysis of contributions in the fields of energy and exhaustible resource economics for each of these two fields a list of the top papers in each five year period from 1974 to 1998 is presented along with a list of the top journals in each decade based on average citations per article the top ten cited articles in the fields in the journal of environmental economics and management are also presented