strategic demand side response to wind power integration this paper explores the effects of allowing large price responsive consumers to provide reserves in a power system with significant penetration of wind energy a bilevel optimization model represents the utility maximization problem of a large consumer subject to a stochastic day ahead co optimization of energy and reserves that a system operator would solve to clear the market while considering wind power uncertainty an examination of the market outcomes from both an illustrative and a large scale study using this model allows analysis of a the effects of the type of behavior of the large consumer i e strategic vs competitive b limits on the amount of reserves it is allowed to provide and c variability and accuracy of characterization of wind power uncertainty

temporary import and export quotas and the current account abstract this paper provides a comprehensive analysis of temporary import and export quotas in a two period optimization model imposing much weaker restrictions on preferences and production technologies than in the existing literature we demonstrate that under net substitutability the imposition of a temporary quota which reduces imports by a small amount improves the current account and causes an appreciation of the real exchange rate if the initial equilibrium is quota restricted the effects of tightening the quota are ambiguous by contrast under substitutability a tightening of export quotas necessarily leads to a current account deficit regardless of the nature of the initial equilibrium

real exchange rate dynamics with nominal parities structural change and overshooting abstract the relationship between structural changes that require a modification of the steady state level of the real exchange rate is examined in terms of a model of staggered prices and real wealth effects although wealth effects are necessary for overshooting it is shown that their actual values are of no particular relevance in fact overshooting is shown to be more likely the smaller is the real wealth effect in the demand for tradables a key and counterintuitive result is that overshooting is more likely the higher is the frequency of price changes

economic growth and structure of domestic absorption evidence from internationally comparable data abstract using the chenery syrquin models of structural change and internationally comparable data on gdp per capita and shares of consumption investment and government spending for the 1960s and the 1970s a study is conducted of changes in the structure of domestic absorption that accompany economic growth relative to the conventional data real data indicate the fall in the share of consumption to be somewhat lower and the rise in the share of investment to be larger as gdp per capita rises the share of government is observed to decline although most previous studies indicate an increase in government share with economic growth

the non dynamic equivalence of monetary and exchange rate rules under imperfect capital mobility and rational expectations abstract in the present paper we introduce a model in which the dynamic adjustment of the real exchange rate and other real variables depends on whether the economy follows a monetary or an exchange rate rule this result stands in opposition to the monetarist models of the open economy where there is a dynamic equivalence between the two rules

exchange rate based stabilization imperfect competition and supply side effects abstract this paper studies exchange rate based stabilization programs in the context of a dynamic general equilibrium model for a small open economy that incorporates imperfect competition a backward looking wage setting and an endogenous labor supply in contrast to previous results the analysis shows that a permanent disinflation leads to a sustained expansion in the domestic sector and a slow inflation convergence this study also shows that a temporary stabilization replicates a boom recession cycle these results suggest that a backward looking wage setting and an endogenous labor supply are the key ingredients for reproducing the stylized facts of exchange rate based stabilization

a neoclassical model of the balance of payments this paper analyses the transitory and long run effects of devaluation and tariffs as well as the effects of alterations in the domestic money supply and the terms of trade for a small country on fixed exchange rates these issues are investigated in a self contained dynamic optimization model of the sort popularized by brock 1974 1975 familiar results in the trade literature are thereby explicated for the nonspecialist who is nonetheless familiar with brock s work there are some new results regarding the role played by income and substitution effects in determining the consequences of terms of trade shifts this paper introduces a perfect foresight optimizing model of the monetary approach to the balance of payments for a small country on fixed exchange rates the model is then used to analyse the effects on the balance of payments of devaluation of a tariff and of changes in the terms of trade the effects of devaluation tariffs and changes in the terms of trade have been analysed previously within the framework of nonoptimizing models dornbusch 1973 1980 and anderson and takayama 1977 have studied the effect of devaluation mussa 1974 1976 anderson and takayama 1978 1981 and batra and ramachandran 1980 have studied the effect of tariffs and rodriguez 1976 batra and ramachandran 1980 and anderson and takayama 1981 have studied the effect of changes in the terms of trade optimizing models in which real balances appear as an argument in the utility function are increasingly popular in international economics the general approach was inspired by sidrauski 1967 and brock 1974 1975 recent contributions to the trade literature using this framework include dornbusch and mussa 1975 calvo 1980 1981 liviatan 1981 and obstfeld 1981 a 1981 b 1982 the purpose of this paper is to translate the conventional small country fixed exchange rate model into this framework the results are generally congruent with those in the nonoptimizing literature which suggests that the money in the utility function approach works well here compared to the nonoptimizing literature the real advance is that price adjustment and price expectations are endogenous and rational among the benefits are that one need not postulate the ad hoc price adjustment mechanism used by anderson and takayama nor the backward looking and hence irrational permanent income formulation used by rodriguez furthermore there has been controversy over the balance of payments effects of a shift in the terms of trade while the model s predictions on this issue are theoretically ambiguous the model shows that the answer depends crucially on the magnitude of income effects this clarifies the conditions required for a terms of trade shift to improve or worsen the balance of payments

exchange rate policies and endogenous time preference a dynamic analysis of a small open economy abstract the effects of exchange rate policies are examined for a small open economy with endogenous rate of time preference using optimizing framework and introducing money into the utility function it is shown that a depreciation of the domestic currency generates a surplus in the current account it also leads to an increase in consumption and a decrease in the holdings of real balances in the long run

the demand for money in developing countries assessing the role of financial innovation traditional specifications of money demand have commonly been plagued by persistent overprediction implausible parameter estimates and highly autocorrelated errors the authors argue that some of these problems stem from the failure to account for the impact of financial innovation they estimate money demand for ten developing countries using various proxies for financial innovations they also assess the relative importance of this variable finding financial innovation can be better modeled as a stochastic random walk trend rather than a deterministic time trend financial innovation plays an important role in determining fluctuations of the demand for money the importance of this role increases with the rate of inflation

the dollarization of a small economy within a utility maximizing framework we study the effects of replacing the national currency with the dollar in a small open economy the impact effect is a drop in the levels of liquidity and wealth the economy reaccumulates real balances by reducing consumption and showing a trade surplus the welfare implications of the program depend on the social rate of time preference and the inflation rate differential we show that the u s can improve both its own welfare and that of the small country s by bribing it into switching currencies we study how these results change with the introduction of capital mobility

anticipated and unanticipated money a case study of malaysia the paper tests the lsw proposition that unanticipated policy changes affect real economic variables by using malaysian data over the period 1970 1 1990 4 the empirical evidence changes in fiscal policy and balance of payments do not affect real output thus lending support to the proposition on the other hand anticipated monetary policy and inflation influence output in the short run lending support to mishkin s views of the economy and rejecting the lsw proposition in addition the long run neutrality proposition is not supported by the data moreover unanticipated changes in inflation do influence real output in the short run lending support to the lsw proposition however unanticipated changes in monetary policy balance of payments and fiscal policy do not influence real output lending support to the classical view of the economy and rejecting the lsw proposition furthermore the monetarist s view that inflation is a monetary phenomenon is rejected the findings also show that unanticipated

tax structure and growth are some taxes better than others using pooled cross sectional data from 23 oecd countries between1965 and 1990 i find evidence that the tax structure affectseconomic growth specifically the proportion of tax revenueraised by taxing personal income has a negative correlation witheconomic growth this result is robust to a rigorous sensitivityanalysis where i control for other plausible growth determinantsin a systematic manner also there is some empirical evidencethat tax progressivity measured in terms of the long run incomeelasticity of tax revenue is associated with low economicgrowth

income velocity and the variability of money growth evidence from less developed countries this paper examines whether the variability of money growth caused changes in income velocity of money in 30 less developed countries time series data show year to year variations in income velocity of money in these countries for the 1961 1990 period empirical results based on causality but complemented by variance decomposition tests show that money growth is the most important determinant in explaining the variability in income velocity in at least 20 of the 30 developing countries examined in this study in addition the causality results show that inflation rate granger causes income velocity of money in 21 countries but the variance decomposition results show inflation rate to be relatively more important in explaining the variability of velocity in eight countries similarly while real income granger causes velocity of money in 18 countries the results of the variance decomposition tests show real income to be relatively more important as a determinant of income velocity in two countries over

inflation and growth impatience and a qualitative equivalence this paper studies the role of an endogenous time preference on the relationship between inflation and growth in the long run in both the money in utility function miuf and transactions costs tc models we establish a qualitative equivalence between the two models in a setup without a labor leisure tradeoff when the time preference is decreasing or increasing in consumption and real balances both the miuf and tc models are qualitatively equivalent in terms of predicting a negative or positive relationship between inflation and growth in a steady state both a decreasing and an increasing time preference in consumption are consistent with the arguments found within the literature while a decreasing time preference in real balances corroborates with empirical evidence there is no evidence in support of an increasing time preference in real balances

stochastic security for operations planning with significant wind power generation in their attempt to cut down on greenhouse gas emissions from electricity generation several countries are committed to install wind power generation up to and beyond the 10 20 penetration mark however the large scale integration of wind power represents a challenge for power system operations planning because wind power 1 cannot be dispatched in the classical sense and 2 its output varies as weather conditions change this warrants the investigation of alternative short term power system operations planning methods capable of better coping with the nature of wind generation while maintaining or even improving the current reliability and economic performance of power systems to this end this paper formulates a short term forward electricity market clearing problem with stochastic security capable of accounting for nondispatchable and variable wind power generation sources the principal benefit of this stochastic operation planning approach is that when compared to a deterministic worst case scenario planning philosophy it allows greater wind power penetration without sacrificing security

money in the production function revisited this note provides a test of whether real balances can be viewed as a factor input contrary to nguyen 1986 and sinai and stokes 1981 it is shown that real balances are a valid factor of production within the confines of a ces production function

forward contracting and selling price determination for a retailer to procure the electric energy to be sold to its clients a retailer has to face two major difficulties while buying electric energy it must cope with uncertain pool prices or sign forward contracts at higher average prices while selling electricity it should handle the uncertainty of the end user demand and the fact that customers might choose a different retailer if the selling price is not competitive enough we propose a risk constrained stochastic programming framework to decide which forward contracts the retailer should sign and at which price it must sell electricity so that its expected profit is maximized at a given risk level the developed model takes into account the elastic behavior of end users with respect to the selling price offered by the retailer a realistic case study illustrates the methodology proposed

real money balances as a productive input abstract using a translog production function and data from the united states private sector over the period 1929 1972 this paper clarifies the theoretical debate which has occured on whether real money balances are an original factor input or a catalyst with a role similar to technological innovation real money balances are found to be an important factor input that cannot be treated as separable from the primary factor inputs capital and labor furthermore the results indicate that real money balances are substitutes for capital but complements with labor while capital and labor are in a relative sense complements

the argentine stabilization plan of december 20th abstract in this paper an analytical model is developed to incorporate the essential characteristics of the stabilization plan implemented in argentina in january 1979 the model is based upon a set of simplifying assumptions that only approximate the complexity of the real world it is assumed that the expectations of inflation and the degree of excess demand or supply in the non traded goods market are the main intermediate determinants of the rate of inflation in that market the rate of change of prices of traded goods being determined by the external inflation together with the rate of devaluation treating thus the external rate of inflation as exogenous the only instrument available for influencing the rate of inflation in the long run is the rate of devaluation since the model assumes a fixed exchange rate regime the money supply is endogenous and hence unsuitable as an instrument of economic policy

stabilization with liberalization an evaluation of ten years of chile s experience with free market policies 1973 1983 the recent post 1973 economic experience of chile has attracted considerable attention both from professional economists and from the media most observers have been particularly impressed by the sharp contrasts observed in chile in such a short period of time for example in 1973 chile had one of the highest rates of inflation in the world over 600 whereas in 1981 it experienced one of the lowest rates of inflation 9 5 also in 1975 real gnp declined by 12 9 but during 1977 80 real gnp grew at an average rate of 8 5 per annum in 1982 however the country faced a new recession with real gnp dropping by 14 5 in 1983 the gnp was reduced further by 2 3 the fact that these episodes developed while the military government was actively pursuing free market oriented policies that greatly liberalized the economy adds considerable interest to the chilean case 2 the year 1973 marked an important turning point in chile s economic and political history in september of that year the military took over the government from president salvador allende and a period of dramatic economic changes began chile was transformed from an economy isolated from the rest of the world with strong government intervention into a liberalized world integrated economy where market forces were left free to guide most of the economy s decisions the period 1973 81 was characterized by important achievements inflation was greatly reduced the government deficit was virtually eliminated the economy went through a dramatic liberalization of its foreign sector tariffs were reduced to a uniform 10 level and prices including interest rates were full liberalized probably one of the most interesting aspects of the chilean economy during this period is that major

bringing wind energy to market wind energy is a rapidly growing source of renewable energy generation however the current extra market approach to its assimilation into the electric grid will not scale at deep penetration levels in this paper we investigate how an independent wind power producer might optimally offer its variable power into a competitive electricity market for energy starting with a stochastic model for wind power production and a model for a perfectly competitive two settlement market we derive explicit formulae for optimal contract offerings and the corresponding optimal expected profit as wind is an inherently variable source of energy we explore the sensitivity of optimal expected profit to uncertainty in the underlying wind process we also examine the role of forecast information and recourse markets in this setting we quantify the role of reserves in increasing reliability of offered contracts and obtain analytical expressions for marginal profits resulting from investments in improved forecasting and local auxiliary generation the formulae make explicit the relationship between price signals and the value of such firming strategies

the optimal inflation tax when money reduces transactions costs abstract it has been argued that if money acts as an intermediate good the optimal inflation tax is zero this paper reexamines such a claim in the context of a model in which money reduces transactions costs it is shown that modeling money as an intermediate good does not necessarily imply that the optimal inflation tax is zero the optimality of a zero inflation tax depends on the properties of the transactions costs technology in particular if the transactions costs technology does not exhibit constant returns to scale it is optimal to resort to the inflation tax

inflation and economic growth a multi country empirical analysis the world eocnomy is currently adjusting to a low inflation regime which has implicastions for the cross country distribution of world growth opportunities in contrast to previous related work which assumes unidirectional causality this paper uses the granger methodology to examine both the direction and pattern of causality between inflation and economic growth in 70 countries using annual data over the period 1960 89 among the conclusions are that first the relationship between inflation and growth is non uniform across countries 40 of countries studied reveal no causality one third exhibit unidirectional causality and about one fifth of countries show bidirectional causality second a vast majority of countries which show either uni or bi directional causality beong to the industrial group and third the low world inflation regime will on balance redistribute real growth opportunities benefit away from the developing countries towards the industrialized countries

robust self scheduling under price uncertainty using conditional value at risk in a deregulated power industry power producing companies bid in the hour ahead and day ahead power markets in an attempt to maximize their profit for a successful bidding strategy each power producing company has to generate bidding curves derived from an optimal self schedule this self schedule is commonly obtained from a profit maximizing optimal power flow model based on predicted locational marginal prices lmps however at the time of self scheduling the predicted values of the lmps are largely uncertain therefore it is desired to produce robust self schedules that can be used to lessen the risk resulting from exposure to fluctuating prices in portfolio optimization theory methods of risk management include value at risk var and conditional value at risk cvar cvar is known to be a more consistent measure of risk than var in fact whilst cvar is the mean excess loss the var provides no indication on the extent of losses that might be suffered beyond the amount indicated by this measure this research proposes a method for robust self scheduling based on cvar it will be shown that polynomial interior point methods can be used to obtain the robust self schedules from a second order cone program the obtained schedules provide a compromise solution between maximum profit and minimum risk simulation results on a standard ieee bus test system will be used to demonstrate the scheduling model based on cvar

stochastic optimization model to study the operational impacts of high wind penetrations in ireland a stochastic mixed integer linear optimization scheduling model minimizing system operation costs and treating load and wind power production as stochastic inputs is presented the schedules are updated in a rolling manner as more up to date information becomes available this is a fundamental change relative to day ahead unit commitment approaches the need for reserves dependent on forecast horizon and share of wind power has been estimated with a statistical model combining load and wind power forecast errors with scenarios of forced outages the model is used to study operational impacts of future high wind penetrations for the island of ireland results show that at least 6000 mw of wind 34 of energy demand can be integrated into the island of ireland without significant curtailment and reliability problems

backward looking indexation credibility and inflation persistence abstract inflation persistence is a stylized fact after disinflation standard staggered prices models show very little or no inflation persistence and hence are of little use when inflation is sticky in this paper i present a model that on the one hand is consistent with the evidence of sticky inflation and on the other can be directly incorporated into modern intertemporal optimizing models the model modifies calvo s calvo g 1983a staggered contracts and exchange rate policy in j a frenkel ed exchange rates and international economics university of chicage press chicago il calvo g 1983b staggered wages in a utility maximization framework journal of monetary ecomomics 12 3 383 393 exclusively forward looking model and includes a backward looking component it encompasses the two extreme cases of purely forward and backward looking price setting i show how the model can be used in open economy stabilization programs this is not the first model including a form of backward indexation in a staggered prices setting however it has the advantage of keeping the analytical elegance of the calvo model while enhancing its dynamics

currency substitution and the real exchange rate the utility maximization approach abstract this paper studies the currency substitution hypothesis with rational expectations in terms of a sidrauski type model where domestic and foreign money enter the utility function it shows that contrary to liviatan 1981 the approach does not necessarily contradict calvo and rodriguez 1977 furthermore the impact of monetary stabilization policy is fully characterized with flexible and pre fixed rates for an extension of dornbusch and mussa 1975 a brief analysis of the optimal quantity of money is also provided

a stochastic two settlement equilibrium model for electricity markets with wind generation incentives to encourage the uptake of renewable energy generation have fostered wind energy in many power systems these incentives usually take the form of market instruments e g feed in tariff or premium that are not directly amenable to optimization representations of the market in this paper we propose an equilibrium model of the short term market to address the impact of wind operation under different structural assumptions the model is formulated for several price taking risk averse firms in competition it accounts for wind generation uncertainty and embeds a representation of the day ahead and balancing mechanisms the consumer is modeled by a linear inverse demand function we focus on feed in premium as the incentive to wind as this is the instrument most favored today in european discussions the model is formulated as a stochastic equilibrium problem where the karush kuhn tucker kkt conditions from the optimization problem of each firm are simultaneously solved together with market clearing conditions on energy capacity for reserve and energy for reserve the problem for each firm consists of a two stage stochastic optimization problem with a recourse function based on the conditional value at risk cvar as a risk measure due to price taking assumptions the model is a single stage complementarity problem it is implemented and solved using the software gams an example based on a stylized simplification of the spanish power market and motivated by the impact of wind penetration on the revenue of conventional plants is used to illustrate the proposed approach

anticipated monetary policy and real output evidence from latin american countries this paper is an empirical investigation of the effects of anticipated and unanticipated monetary policies on real output for 13 ldcs in latin and central america the well know mishkin econometric procedure is applied to the annual imf date for the decomposition of actual money growth into anticipated and unanticipated components and the evidence of significant relation between anticipated money supply and real output for each country is reported the results derived in this paper thus provide additional empirical support for the validity of the non classical rational expectations macro models of fisher and phelps and taylor

temporary stabilization predetermined exchange rates the paper analyzes the impact of a stabilization policy based on a temporary reduction in the rate of devaluation against a background in which a constant rate of devaluation has no real effects it is shown that the temporary policy does and furthermore that the real effects tend to become bigger in absolute value as the horizon of the temporary policy is shortened the central discussion is carried out in terms of a one good cash in advance model with perfect capital mobility and ramsey type consumers results are extended to account for home goods and variable velocity the roles of capital mobility and banking liberalization are briefly discussed

the effects of inflation on economic growth lessons from latin america this paper investigates the relationship between inflation and long run growth it presents an endogenous growth model that illustrates the channels through which inflation affects growth the model highlights the effects of inflation on the productivity of capital and the rate of capital accumulation the reduction in growth is caused by a diversion of resources away from activities that lead to faster rates of growth toward activities associated with reducing the costs of inflation the negative association between inflation and growth is assessed empirically for a sample group of latin american countries this abstract was borrowed from another version of this item

on the outcome of inconsistent programs under exchange rate and monetary rules abstract this paper studies the case of inconsistent programs of monetary policy that is programs incompatible in the long run with a given budget deficit so that at some point in the future there is an eventual crisis and demise of the program all of which is from the outset anticipated by the public the context is one of a small open economy with perfect foresight in which two sets of possibilities are analyzed i a monetary or an exchange rule for the conduct of monetary policy and ii presence or absence of capital mobility it is found that while the choice of the rule is unimportant restrictions on capital mobility determine a very different response for the case of either rule concerning side effects of the program on non monetary variables and on the post crisis level of country indebtedness

economic growth financial evolution and the long run behavior of velocity a general equilibrium model is presented in which buyers and sellers find it increasingly difficult to make private credit arrangements as economic activity spreads into new markets hence the demand for money increases as the structure of production and trade becomes more complex at the same time however financial innovations allow agents to economize on their cash balances together these effects of technological progress account for two empirical regularities the u shaped pattern in velocity and the ever increasing share of productive resources devoted to the private financial sector that are associated with the process of real economic growth

autoregressive modelling and money income causality detection abstract a step wise procedure based on granger s concept of causality and abaike s final prediction error criterion is suggested as a practical means to identify the order of lags of each variable in a multivariate autoregressive process the model seems useful because it can serve as a reduced form formulation to avoid imposing often spurious or false restrictions of the model it also provides a reasonably powerful test of causality the idea is applied to u s postwar money and income data it is found that between m1 and gnp a bivariate feedback model fits the data best between m2 and gnp a one way causal model from money to income performs better diagnostic checks applied to our model seem to indicate the adequacy of our approach

devaluation levels versus rates abstract in a context of infinitely lived families a la sidrauski where consumers are lump sum compensated for the inflation tax and there is no capital mobility it is shown that a devaluation improves while an increase in the rate of devaluation deteriorates the balance of payments

the capital inflows problem revisited a stylized model of southern cone disinflation in the late 1970s countries in latin america s southern cone initiated attempts to lower domestic inflation rates through the progressive reduction of a preannounced rate of exchange rate devaluation the stabilization programs gave rise to massive capital inflows real exchange rate appreciation and current account deficits this paper develops a stylized intertemporal framework in which the effects of a credible preannounced disinflation scheme can be studied it is shown that even when agents have perfect foresight and markets clear continuously the capital inflows phenomenon and the associated real appreciation may result while unanticipated permanent inflation changes are neutral in the paper anticipated inflation is neutral only in exceptional circumstances a preannounced disinflation operates by altering the path of an expenditure based real domestic interest rate that depends on expected changes in the prices of liquidity services and nontradable consumption goods

money output granger causality revisited an empirical analysis of eu countries in this paper the evidence collected in the large literature on testing for granger causality from money to output is revisited using a broad data base of 14 eu countries plus canada the us and japan and quarterly data from the mid 1960s to mid 1990s a number of hypotheses from this literature is evaluated it is found that very few general conclusions can be sustained for instance in most countries it is not the case that the use of data in levels creates a bias in favour of finding granger causality effects of money on output compared to using differences neither does the significance of money lags decline when increasing the number of variables included in the model what appears to be robust though is that allowing for asymmetries clearly increases the likelihood of finding significant causality effects based on the granger causality test results a number of country groups are obtained using cluster analysis which are characterized by a similarly behaviour with respect to the money output

temporary stabilization policy abstract the effects of a temporary slowdown in the rate of expansion of money supply are studied under ramsey lucas and money superneutrality assumptions it is shown that such a policy expands consumption and leads to capital decumulation and current account deficits in the short run the model is a benchmark case in which temporary policy is always detrimental to welfare connection with the policy credibility issue is briefly discussed

the real time price elasticity of electricity the real time price elasticity of electricity contains important information on the demand response of consumers to the volatility of peak prices despite the importance empirical estimates of the real time elasticity are hardly available this paper provides a quantification of the real time relationship between total peak demand and spot market prices we find a low value for the real time price elasticity which may partly be explained from the fact that not all users observe the spot market price if we correct for this phenomenon we find the elasticity to be fairly low for consumers currently active in the spot market if this conclusion applies to all users this would imply a limited scope for government intervention in supply security issues

balance of payments dynamics and exchange rate management abstract this paper studies the dynamics of the balance of payments in response to policy disturbances under the assumption that the central bank devalues the country s currency over time at a constant pre announced rate depending on the magnitudes of the parameters of the model i find that a given disturbance may result in qualitatively different short run behavior of the balance of payments accounts in each case however the adjustment process will lead the economy to a stable long run equilibrium provided the government finances its spending according to a certain set of rules

dynamics of the exchange rate in anticipation of pegging abstract this paper studies an economy in which agents expect the current floating rate regime to be interrupted on a specific future date by a transitional fixed rate policy when the new peg is not revealed in advance the path of the floating rate in anticipation of pegging is determined by the interaction between what agents perceive to be the objectives and the constraints of the central bank the paper highlights the role of the pegging date the duration of the fixed rate interval the quantity of reserves available to the authorities and the nature of policies expected after pegging is terminated

dynamics in a transactions based monetary growth model abstract this paper characterizes the dynamics of a monetary endogenous growth model in which money is introduced into the system via a transactions cost technology a monetary equilibrium that either satisfies the friedman rule of the optimum quantity of money or accommodates the zero inflation rate policy is dynamically unstable with cagan like hyperinflation the monetary equilibrium may either be unstable or exhibit dynamic indeterminacy in which a variety of equilibrium outcomes emerge in transition the rate of monetary expansion the relative magnitudes of the intertemporal elasticity of substitution and the production technological parameter are crucial for determining the stability property of the model

the effects on output of anticipated and unanticipated money growth a case study of an oil producing country the new classical macroeconomic hypotheisis regarding the effecs of money growth on real variables sugggests that the anticipated changes in money supply on real variables are neutral irrespective of the time horizon whereas the unanticipated changes in the money supply although neutral in the long run exert significant influence on real variables in the short run this proposition has produced unsettled empirical results the present study attempts to verify empirically the new classical hypothesis in the case of a developing oil producing middle eastern country iraq our study suggests that the anticipated components of money growth rates have positive and significant influence on real variables the results of this study do not lend support to the new classical hypothesis instead they suggest that a steady growth rate of money supply that is fully anticipated by economic agents builds confidence by reducing errors in expectation regarding the behaviour of the money supply and provides easier ac

the value of time and the transactions demand for money this paper reexamines the hypothesis of dean s dutton and william p gramm and edi karni that the wage rate influences the demand for money as a proxy for the value of transactions time it develops value of time transactions models which yield demand for money equations that have a real wage rate argument and compares it to a non value of time alternative that does not the author finds that the value of time models perform well and that the value of time effect is empirically significant copyright 1990 by ohio state university press

government and economic growth in the less developed countries an empirical study for 1960 1980 adam smith founded modern economics with a powerful argument that free markets are the best route to prosperity and economic growth his conclusion has been studied and debated by economists ever since including nobel prize winners friedman hayek kuznets lewis myrdal and schultz whatever economists have concluded since world war ii the majority of the less developed countries seem to have opted for extensive government regulation of the private sector and for a large public sector has the large government role slowed or accelerated the growth of ldcs obviously this is an important issue this study looks at government expenditure revenue raising and regulation greater emphasis is put on expenditure because 1 the revenue raised is presumably a function of the level of expenditure and 2 there are few internationally comparable measures of regulation there are virtually no empirical studies of the general impact of government on economic growth an extensive literature search turned up only three papers gemmell analyzed the impact of nonmarket sector growth on various measures of macroeconomic performance for 27 ldcs and developed countries for 1960 and 1970 he drew no general conclusions about the relation between the size of the nonmarket sector and economic growth marsden found a negative relation between tax gdp ratios and economic growth for a cross section of 20 ldcs and developed countries for the 1970 79 period 2 i found a negative relationship between the share of government consumption expenditure in gdp and the growth of per capita gdp for a cross section of 96 ldcs and developed countries over various time periods between 1961 and 1976 3 this paper extends the approach used in my 1983 article

pricing electricity in pools with wind producers this paper considers an electricity pool that includes a significant number of wind producers and is cleared through a network constrained auction one day in advance and on an hourly basis the hourly auction is formulated as a two stage stochastic programming problem where the first stage represents the clearing of the market and the second stage models the system operation under a number of plausible wind production realizations this formulation co optimizes energy and reserve and allows deriving both pool energy prices and balancing energy prices these prices result in both cost recovery for producers and revenue reconciliation a case study of realistic size is used to illustrate the functioning of the proposed pricing scheme

currency trade and capital flows in general equilibrium this paper studies currency trade and capital flows in a one good general equilibrium exchange model with utility maximizing individuals the effects of both monetary and endowment shocks are examined it is shown that both can cause trade and capital flows the model is a two country version of the twostate optimizing model used recently by leroy 1984a 1984b to study the effects of monetary and endowment shocks in a closed economy each country issues its own currency real and nominal bonds and equity shares each receives an endowment of a perishable consumption good the demand for money is generated by entering real balances into the utility function as in dornbusch and mussa 1975 calvo 1981 liviatan 1981 obstfeld 1981a 1981b 1982 razin 1981 stockman 1983 and michener 1984 each country holds both currencies an assumption made only by liviatan both monetary growth and endowments of the consumption

the lucas hypothesis on the phillips curve further international evidence abstract this paper is a further attempt to test the lucas hypothesis on the phillips curve by making cross country comparisons that hypothesis posits that nominal shocks affect real aggregates only if individuals mistake them for what they are not movements in real variables the existence of a trade off between output and inflation is conditional on economic agents misinterpreting the price movements they observe countries with widely fluctuating exogenous shocks will have a more vertical phillips curve as their inhabitants sharpen their instrumental to differentiate between real and nominal shocks hence cross country comparisons provide fertile grounds to test this hypothesis if it holds true we should find a positive correlation between phillips curve slopes and the standard deviations of the exogenous shocks the evidence presented here confirms lucas s findings

wind farm portfolio optimization under network capacity constraints in this article we provide a new methodology for optimizing a portfolio of wind farms within a market environment for two market designs exogenous prices and endogenous prices our model is built on an agent based representation of suppliers and generators interacting in a certain number of geographic demand markets organized as two tiered systems assuming rational expectation of the agents with respect to the outcome of the real time market suppliers take forward positions which act as signals in the day ahead market to compensate for the uncertainty associated with supply and demand then generators optimize their bilateral trades with the generators in the other markets the nash equilibria resulting from this signaling game are characterized using game theory the markowitz frontier containing the set of efficient wind farm portfolios is derived theoretically as a function of the number of wind farms and of their concentration finally using a case study of france germany and belgium we simulate the markowitz frontier contour in the expected cost risk plane

assessment of the cost associated with wind generation prediction errors in a liberalized electricity market in this paper a probabilistic methodology for estimating the energy costs in the market for wind generators associated with wind prediction errors is proposed generators must buy or sell energy production deviations due to prediction errors when they bid in day ahead or hour ahead energy markets the prediction error is modeled through a probability density function that represents the accuracy of the prediction model production hourly energy deviations and their associated trading costs are then calculated three study cases based on real wind power installations in spain are analyzed the three study cases show that the error prediction costs can reach as much as 10 of the total generator energy incomes

stabilization policies in developing countries what have we learned abstract the paper reviews the recent experience with stabilization programmes in latin america in the light of traditional and monetarist models of inflation and the exchange rate the traditional model links both inflation and payments problems to budget deficits the monetarist model too believes that inflation is caused by fiscal deficits but it takes a more optimistic view of stabilization full purchasing power parity and perfect capital mobility make stabilization just a question of the appropriate exchange rate policy and the proper rate of domestic credit creation the traditional view is substantially right as a long run model but it fails in the dynamics the monetarist model is as we know now fundamentally wrong as a short run description of the possibilities of inflation control there is need and room for a paradigm that places emphasis on the debt money mix in financing the budget on the stickiness of inflation rates and on the place of short run real exchange rate and real interest rate variations that these are key features of the transition phase is amply borne out by the devasting and unsuccessful experiences with monetarist stabilization in argentina chile and brazil

credit rationing and capital accumulation this paper develops a dynamic partial equilibrium analysis of how financial policy affects capital accumulation when bank loans are rationed and subsidized the underlying specification of intertemporal behavior is critical loan policy often has qualitatively different effects on capital accumulation in overlapping generations and infinite horizon models it is also shown that in the infinite horizon case the results are extremely sensitive to the timing of private sector expectations policies that promote reduce capital accumulation when unanticipated induce capital decumulation accumulation when anticipated copyright 1991 by the london school of economics and political science

devaluation levels vs rates and balance of payments in a cash in advance economy abstract this paper investigates the consequences of the currency devaluation both in levels and rates on the balance of payments in a cash in advance economy with finite horizons endogenous capital accumulation and international capital immobility in this context a once and for all currency devaluation induces a balance of payments surplus whereas a sustained increase in the rate of devaluation produces in principle an ambiguous effect on the balance of payments if however non restrictive assumptions on some structural parameters are made an increase in the devaluation rate leads to a balance of payments surplus the exact opposite of calvo s result j int econ 11 2 1981 165

political shocks international reserves and the real exchange rate the argentine case abstract exogenous shocks to international reserves are introduced as an indicator for exchange rate adjustments these reserves shocks are identified for argentina in the 1970s and they appear to have been induced by political upheavals as well as by changes in the external terms of trade granger and modified sims causality tests indicate that the shocks to reserves did lead the real exchange rate from the seemingly erratic series of mini and maxi devaluations a rule of crawling galloping peg is estimated with the reserves shocks as significant independent variables that affected the pace of devaluations the crawling peg used as an instrument to pursue an international reserves target was the channel through which changes in the political and economic environment of the country were transmitted to fluctuations of its real exchange rate

how much and how often a model of repeated consumption with endogenous consumption frequency abstract we study the consumption pattern for a repeated good in which individuals choose both consumption frequency and intensity in response to income price and setup cost results include that increased setup costs reduce frequency and increase intensity and that the effects of a setup cost increase are qualitatively different from those of a price increase or an income reduction

economic valuation of reserves in power systems with high penetration of wind power this paper proposes a methodology to determine the required level of spinning and nonspinning reserves in a power system with a high penetration of wind power the computation of the required reserve levels and their costs is achieved through a stochastic programming market clearing model spanning a daily time horizon this model considers the network constraints and takes into account the cost of both the load shedding and the wind spillage the methodology proposed is illustrated using an example and a realistic case study some conclusions are finally drawn

money in the aggregate production function reexamination and further evidence money has traditionally been studied within the framework of utility theory rather than production theory recently attempts have been made to study money within the neoclassical production theory and in fact allow the demand for money to be obtained in the same way as the demand for labor and capital e g see dennis and smith 1978 nadiri 1969 the elrst empirical study to examine money in the u s aggregate production function was that of sinai and stokes 1972 they estimated a cobb douglas production function with capital labor and various deelnitions of real money balances using u s data over the period 1929 67 their conclusion was that money was a signielcant input and that its contribution to output was mistakenly attributed to technical change i e the time trend coefelcient lost its significance when money was added to the production function most of the later studies e g khan and kouri 1979 short 1979 that lent further support to the sinai stokes paper have also used u s data over the period 1929 67 the purpose of this paper is to reexamine previous evidence as well as to provide further results on the role of money in the aggregate production function the results obtained in this paper cast doubts on the previous conclusion that money should be included as an input along with capital and labor in the aggregate production function a brief discussion of the theoretical and empirical literature dealing with

pool strategy of a price maker wind power producer we consider the problem of a wind power producer trading energy in short term electricity markets the producer is a price taker in the day ahead market but a price maker in the balancing market and aims at optimizing its expected revenues from these market floors the problem is formulated as a mathematical program with equilibrium constraints mpec and cast as a mixed integer linear program milp which can be solved employing off the shelf optimization software the optimal bid is shown to deliver significantly improved performance compared to traditional bids such as the conditional mean or median forecast of wind power distribution finally sensitivity analyses are carried out to assess the impact on the offering strategy of the producer s penetration in the market of the correlation between wind power production and residual system deviation and of the shape of the forecast distribution of wind power production

co integrated money in the production function evidence and implications the notion of money as a factor of production has been debated both theoretically and empirically by a number of researchers in the past four decades however the empirical support for money as an input along with labour and capital has been mixed and thus the issue appears to be unsettled recent developments in econometrics regarding co integration and error correction provide a rich environment in which the role of money in the production function can be reexamined in a co integrated space this article presents empirical evidence indicating that different definitions of money simple sum or the divisia m2 play an input role in the cobb douglas production function

temporary import quota and the current account this paper studies the effects of a temporary import quota on the real exchange rate and the current account response is determined by the interaction between two opposing forces the intertemporal relative price effect tends to improve the current account while the wealth the intertemporal relative price effect tends to improve the current account while the wealth effect contributes to a deterioration for a sufficiently low degree of intertemporal consumption substitution the wealth effect is shown to dominate in this event the current account deteriorates in response to a temporary quota and improves only after the quota is lifted

exchange rate indexation in a monetary model theory and evidence abstract using a familiar monetary model with nontraded goods we derive the stability properties of the price level and reserve stock when the exchange rate is partially or completely indexed to the home price level divided by foreign prices in the stable case it is shown that indexing results in a system with properties of both fixed and flexible regimes our method is to impose conditions of short run but not long run equilibrium in a discrete period model the model is tested with monthly data from brazil

a liquidity in advance model of the demand for money under price uncertainty abstract we develop a model of money demand in which the asset and goods markets open sequentially money balances are subject to price level and consumption risk empirical evidence from a bivariate arch framework suggests both sources of risk reduced money demand in the 1970s inflation risk depresses money demand throughout our sample 1962 1987 the econometric analysis resolves conflicting empirical estimates reported in the literature

money and the bias of technical progress in the literature on the behaviour of a monetary economy it has been suggested that in addition to its role as a medium of exchange the role of money in production should be recognized explicityliy however on this latter point there is some disagreement as to the mechanism by which it affects production for example mundell 1971 bailey and friedman 1969 attribute direct productivity to money and consequently sugest that is should be treated as a separate facto of production on the other hand brunner and meltzer 1971 perlman 1971 stein 1971 gabor and pearce 1958 saving 1972 and moroney 1970 emphasize the role of money as an innovational factor while the reasoning varies the basic idea is that the use of money enhances efficiencies of capital and labour in other words money acts as an input augmenting factor in a recent paper subrahmanyam and cosimano 1979 using data on the indian economy for 1950 51 1969 70 and the ces production function framework have tried to test t

inflation and growth pecuniary transactions costs and qualitative equivalence this paper develops a pecuniary transactions costs tc approach to reexamine the principal relationships and results concerning inflation and growth in a model with a general tc function and an endogenous labor leisure choice we consider four special cases by distinguishing among money as 1 a consumption good 2 a production good 3 an investment good and 4 a consumption good as well as an investment good under some weaker conditions as in related studies a reversed tobin effect obtains for all cases a high monetary growth rate leads to lower steady state capital labor consumption and real money balances these findings suggest that a pecuniary tc model is qualitatively equivalent to alternative models in the literature

anticipation of future consumption a monetary perspective we adapt the monetary model sidrauski 1967 to study the hypothesis of anticipation of future consumption we assume that anticipation of future consumption affects an agent s instantaneous utility and that all effects of future consumption on current well being are captured by the stock of future consumption monetary policy effectiveness is thereby reduced and a zero nominal lower interest rate and thus the friedman rule is destabilizing given this we can derive a just stable equilibrium nominal interest rate with matching definitions for inflation and monetary growth we demonstrate that these implied lower bounds match their historical analogues well

money in the production function a new keynesian dsge perspective this article checks whether money is an omitted variable in the production process by proposing a microfounded new keynesian dynamic stochastic general equilibrium model in this framework real money balances enter the production function and money demanded by households is differentiated from that demanded by firms using a bayesian analysis our model weakens the hypothesis that money is a factor of production however the demand of money by firms appears to have a significant impact on the economy even if this demand has a low weight in the production process

the exact timing of the collapse of an exchange rate regime and its impact on the relative price of traded goods as of february 28 1983 ninety four countries are classified as having a fixed exchange rate regime 38 are pegged to the u s dollar 13 to the french franc 14 to the special drawing right and 24 to different baskets of currencies the choice of a fixed exchange rate peg implies a specific monetary discipline namely monetary growth equal to the growth rate of the currency or currencies to which a country is pegged monetary policy is thus subject to an exchange rate rule rather than to either a monetary growth rule or alternatively to discretionary policy a fixed exchange rate is a specific case of an active crawling peg where the preannounced rate of change in the exchange rate is zero active crawling peg rules whereby the exchange rate is adjusted downward by a preannounced amount over a specified period of time have been practiced in various places particularly in latin america recent experiments include argentina beginning december 1978 brazil during the 1980 calendar year chile from february 1978 to june 1979 jamaica from may 1978 to may 1979 portugal from august 1977 to june 1979 and uruguay beginning october 1978 1 at times the prean

reserves and the managed float a search for the essentials we examine the stability of rules that determine the rate of devaluation as a function of the level of reserves the analysis is conducted in terms of an overlapping generations and a sidrauski type model with rational expectations and without capital mobility on the whole the analysis confirms results by rodriguez 1981 in a substantially different model by which high speeds of adjustment tend to provoke instability

economic and environmental implications of different approaches to hedge against wind production uncertainty in two settlement electricity markets a pjm case study abstract this paper examines the economic and environmental outcomes of four two settlement electricity market clearing designs the first design corresponds to a deterministic market clearing dmc similar to the mechanism currently used in organized wholesale electricity markets in the united states the other three designs account for the day ahead da wind power production uncertainty into the da market mechanisms either implicitly or explicitly an augmented deterministic market clearing admc design introduces da ramp capability products these products ensure adequate and ramp feasible electricity generation capacity commitments in the da stage to cope with the real time realization of wind power generation a hybrid deterministic market clearing hdmc design augments admc by explicitly integrating a characterization of wind power production uncertainty into the residual unit commitment ruc process which is run after the da market is closed using stochastic programming the last design referred to as stochastic market clearing smc uses stochastic optimization to explicitly account for wind power production uncertainty in the da market clearing mechanisms i e da unit commitment and economic dispatch the four market clearing designs are assessed by simulating the electricity market operations of a test system and comparing their results in terms of operating costs prices costs and revenues of different types of producers consumer s payments integration of wind power and air emissions the test system has 12 of the capacity of pjm s fossil fired power generation fleet and uses data on coincident demand and wind power production from the bonneville power administration bpa system during years 2010 2014 the simulations are performed hourly for a whole year results show that smc is superior as its costs reductions are more than two times the improvements attained by admc and hdmc also smc results in electricity prices that are better aligned with operation costs cuts the spread between the day ahead and real time prices by 40 reduces out of market short term revenue sufficiency payments by 58 reduces co2 emissions by 3 52 and decreases power plants cycling hdmc is a distant second best market design relative to dmc it achieves a reduction in total costs that is less than half the reduction achieved by smc a reduction in out of market payments that is 80 of the reduction attained by smc and an increase in wind power integration that is

electricity market participation of wind farms the success story of the spanish pragmatism abstract in the last 10 years more than 15 gw of wind power asociacion empresarial eolica spanish wind energy association nota de prensa press release 17 de enero de 2008 http www aeeolica org doc np 080117 espana supera los 15000 mw eolicos pdf have been installed in spain of which more than 3 5 gw in 2007 furthermore plans are to reach 20 gw by 2010 and there are expectations of an installed capacity exceeding 40 gw by 2020 this article will present the innovative solutions for technical and economical integration that allow to reach such high level wind penetration objectives the system peaks at around 44 gw and is almost isolated it will be described how the regulation has evolved from a pure feed in tariff to a market premium option where technical and economic integration has been a priority today approximately 97 of installed wind capacity accesses the spanish wholesale electricity market market integration has been crucial sending the correct signals to participants to look for the optimum technical solutions technical improvements have come from both wind power producers fault ride through capabilities visibility and controllability of wind power power production forecasting reactive power control and the system operator specific control centre dedicated to renewable energy sources res new security analysis tools gaining technical confidence of wind capabilities

temporary capital controls in a balance of payments crisis abstract this paper analyzed the effect of anticipated temporary capital controls ina balance of payments crisis using a model based on intertemporal optimization the anticipation of the controls affects the economy from the beginning of the crisis usually creating a current account deficit a speculative attack can occur just before the controls are imposed but a transitory period of capital inflows is also possible a speculative attack is less likely when the fiscal deficit is small or when the level of reserves is high at the time the controls are imposed

current account effects of a temporary change in government expenditure a perfect foresight model of intertemporal utility maximization is used to analyze the current account effects of a temporary increase in government spending the relationship between the marginal utility of private consumption and the supply of public goods in the economy is shown to play a crucial role in determining the qualitative nature of the optimal current account response the link between the timing of the policy change and the magnitude of the current account effect is also examined

on the equivalence of private and public money abstract when does a swap between private and public money leave the equilibrium allocation and price system unchanged to answer this question the paper sets up a generic model of money and liquidity which identifies sources of seignorage rents and liquidity bubbles we derive sufficient conditions for equivalence and apply them in the context of the chicago plan cryptocurrencies the indian de monetization experiment and central bank digital currency cbdc our results imply that cbdc coupled with central bank pass through funding need not imply a credit crunch nor undermine financial stability