sustainability of external imbalances in the oecd countries the authors wish to thank three anonymous referees for helpful comments to a previous version financial support from the spanish institute for fiscal studies the spanish ministry of economy and competitiveness projects eco2011 29314 c02 02 o bajo rubio and c diaz roldan and eco2011 30260 c03 01 v esteve and the department of education and science of the regional government of castilla la mancha project peii09 0072 7392 is also gratefully acknowledged v esteve also acknowledges support from the generalitat valenciana project gvprometeo2009 098

an empirical study on taiwan s current account 1961 90 in this paper a simple intertemporal current account model is developed for a small open economy with imperfect capital markets the model nests both perfect and imperfect international capital mobilities as its special cases the model is empirically examined using taiwan s annual data for the period between 1961 and 1990 our results show that the model is able to explain some historical movements of taiwan s trade balance however in contrast to many findings from previous studies for other countries the model is rejected one important feature of the rejection of the model is that the actual trade balance series is much more volatile than can be explained by the model this is especially so for the periods when world oil shocks occurred these results indicates that changes in the terms of trade which our simple model neglects might be important factors in taiwan s current determination

credit rationing in an open economy this paper claims that credit market imperfections matter significantly to open economies and can alter basic macroeconomic results this is demonstrated in the paper by use of an open economy model with individual credit rationing due to asymmetric information and moral hazard the paper concentrates on the effect of fiscal policy and shows that when credit is rationed the standard result does not hold and a fiscal expansion may create a surplus instead of a deficit in the current account furthermore the paper shows that whether credit is rationed or not depends on the tax burden copyright 1991 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

criteria of external sustainability abstract this paper examines the problem of assessing external sustainability that is determining whether present paths of external imbalance can continue indefinitely conditional on present policies being maintained the main contribution of the analysis is to show how conditional forecasts of external imbalance may be generated in a consistent way that explicitly incorporates a mechanism for achieving sustainability an index of external unsustainability is derived that reflects the probability of future changes in policy expected by private agents over time

boom and bust cycles external imbalances and the real exchange rate when the current account balance and net capital outflows do not exactly offset each other international payment flows arise payment flows into a country push the real exchange rate up payment outflows push it down this article uses a model of optimal consumption and portfolio choice to determine the factors that drive international payment flows during boom and bust cycles it shows that during such episodes capital inflows first exceed the deficit on current account strengthening the currency later on when the return on domestic capital reverts to its normal level the current account recovers yet the overall decline of the net foreign asset position provokes a fall of the real exchange rate even below its initial level case studies of countries experiencing rapid economic expansions followed by economic and financial meltdowns confirm the article s theoretical predictions

government debt capital accumulation and the terms of trade in a model of interdependent economies this paper extends diamond s overlapping generations model into a two good two country setting to analyze the impact of an increase in domestic government debt on the terms of trade the current account and capital accumulation at home and abroad it is found that while the direction of change in the terms of trade is indeterminate in the short run for stability it must agree with that in the steady state which in turn is dependent on the initial debt status in trade of the home country the higher level of government debt leads unambigously to lower levels of capital stocks however

general equilibrium rebound from energy efficiency innovation abstract energy efficiency improvements rebound when economic responses undercut their direct energy savings i show that general equilibrium channels typically amplify rebound by making consumption goods cheaper but typically dampen rebound by increasing demand for non energy inputs to production and by changing the size of the energy supply sector improvements in the efficiency of the energy supply sector generate especially large rebound because they make energy cheaper in all other sectors quantitatively general equilibrium channels reduce rebound in u s consumption good sectors from 39 to 28 but increase rebound in the energy supply sector from 42 to 80

time preference and international lending and borrowing in an overlapping generations model two economies represented by diamond type overlapping generations models and differing only in their pure rates of time preference are joined together capital formation balance of payments behavior and welfare are compared under autarky and openness with a positive natural rate of growth the low time preference country runs a current account surplus in the steady state but not necessarily outside it if preexisting capital is not shiftable between countries integration in the world economy makes the high time preference country worse off in the short run the ranking of stationary utility levels under autarky and openness is ambiguous

on the determination of the external debt the case of israel abstract this paper pursues the econometric implementation of an intertemporal optimization model of the foreign debt with israeli data in this model the private sector faces perfect capital markets and maximizes utility from consumption over an infinite horizon the intertemporal budget constraint recognizes the intertemporal finance equation of the government under these conditions the effect of current disturbances in output government spending and unilateral transfers on private consumption and foreign borrowing is determined by their perceived future persistence the model passes a formal econometric test however some results are also suggestive of omitted considerations

energy conservation more effective with rebound policy this article sketches the problem of indirect energy use effects also known as rebound of energy conservation there is widespread support for energy conservation especially when it is voluntary as this seems a cheap way to realize environmental and energy climate goals however this overlooks the phenomenon of rebound the topic of energy rebound has mainly attracted attention from energy analysts but has been surprisingly neglected in environmental economics even though economists generally are concerned with indirect or economy wide impacts of technical change and policies this paper presents definitions and interpretations of energy and environmental rebound as well as four fundamental reasons for the existence of the rebound phenomenon it further offers the most complete list of rebound pathways or mechanisms available in the literature in addition it discusses empirical estimates of rebound and addresses the implications of uncertainties and difficulties in assessing rebound suggestions are offered for strategies and public policies to contain rebound it is advised that rebound evaluation is an essential part of environmental policy and project assessments as opposed to earlier studies this paper stresses the relevance of the distinction between energy conservation resulting from autonomous demand changes and from efficiency improvements in technology equipment in addition it argues that rebound is especially relevant for developing countries

the induced innovation hypothesis and energy saving technological change we develop a methodology for testing hicks s induced innovation hypothesis by estimating a product characteristics model of energy using consumer durables augmenting the hypothesis to allow for the ine uence of government regulations for the products we explored the evidence suggests that i the rate of overall innovation was independent of energy prices and regulations ii the direction of innovation was responsive to energy price changes for some products but not for others iii energy price changes induced changes in the subset of technically feasible models that were offered for sale iv this responsiveness increased substantially during the period after energy efficiency product labeling was required and v nonetheless a sizable portion of efficiency improvements were autonomous

consumption smoothing and the current account evidence for france 1970 1996 abstract this paper estimates a simple consumption smoothing model of the french current account and examines its capacity to predict recent developments in france s external performance the model views the current account as a buffer through which private agents can smooth consumption over time in response to temporary disturbances to output investment and government expenditure the empirical results indicate that the model performs well overall and predicts correctly the sharp turnaround in france s external accounts observed in the past 3 years a feature of the data that conventional models of trade flows based on income and relative price variables appear unable to explain

deficits and intergenerational welfare in open economies this paper deals with public debt in open economies extending diamond s overlapping generations model to a small open economy as well as an international equilibrium of two large economies it focuses on the intergenerational welfare redistributions caused by an increase in public debt triggered by a temporary government budget deficit and shows how these redistributions differ in open and closed economies the interplay between the deficits in the government budget and the current account is also analyzed it is shown how a single period with a government deficit can be followed by a sequence of periods with a deficit in the current account

the current account in the macroeconomic adjustment process macroeconomic adjustments to changes in the economic environment are to a large extent conditioned by the intertemporal choices of economic agents when agents face an intertemporal budget constraint a decision to alter current indebtedness implies changes in future consumption possibilities and will be based on expectations of the entire future path of key variables and not only current variables a formal model to show how today s current account is a function of both current and future economic variables is presented the determination of the current account under classical assumptions of market clearing and continuous full employment is emphasized

fiscal policy and the real exchange rate under risk abstract this paper examines the effect of fiscal expansions on the real exchange rate in a small open economy where home and foreign assets are imperfect substitutes there is an hypothesis raised by sachs and wyplosz 1984 dornbusch and fischer 1986 and others that risk and imperfect substitutability of assets can explain why fiscal expansions sometimes create real depreciations unlike the standard mundell fleming result this paper examines the issue within an optimizing framework where risk and imperfect capital mobility are explicitly modeled the paper comes up with the conclusion that even when assets are imperfect substitutes and a fiscal expansion crowds out investment and consumption this crowding out is not full and the real exchange rate always appreciates

redistribution and non consumption smoothing in an open economy this paper presents a model where income distribution and redistributive fiscal policy interact to affect the budget deficit and the pattern of net borrowing of a country according to the standard representative agent paradigm a small open economy should smooth consumption by borrowing from lending to the rest of the world when its income increases declines over time the simple model of this paper delivers exactly the same predictions in the absence of income dispersion when income distribution is not degenerate however the same model gives rise to a surprising wealth of results in particular poor economies with high inequality may exhibit completely counter intuitive patterns of fiscal policy and external borrowing the country s production path declines over time because the more mobile agents leave the country to escape taxation yet the country might end up having a budget deficit and borrowing from abroad thereby reinforcing rather than smoothing the asymmetry in consumption between the two periods an important feature of this outcome is that it is backed by both the poor and the rich who gain from the fiscal system at the expense of the middle class

the trade balance and fiscal policy in the oecd abstract we explore the short run impact of movements in different components of fiscal policy on the trade balance exports and imports for a panel of oecd countries over 1960 1995 we find that the composition of a shift in fiscal policy and the exchange rate regime matter for its transmission to the external account the strongest result is that an expansion in wage government consumption causes a contraction in exports and a deterioration of the trade balance especially under flexible exchange rates we discuss the implications of our results for fiscal and current account adjustment

directed technological change and factor shares abstract directed technological change dtc concerns how stocks of factor augmenting knowledge evolve relative to each other we model investment in factor augmenting knowledge at firm level and show that relative investment rates depend on the relative factor shares and elasticities furthermore we argue that links between the knowledge stocks and substitution between final goods are crucial to the long run evolution of the economy

critical debt and debt dynamics we study the debt dynamics and sustainable debt for an open economy which borrows from abroad in order to nance consumption to service the debt the country may exploit a renewable resource we show that there is for every resource stock r a critical level bh r of debt above which debt tends to in nity but below which it may be steered to zero we demonstrate how to compute bh r using an ode of steepest descent if the economy maximizes a discounted integral of utility depending on consumption and the resource stock the critical debt bh r may be reached in nite time in such a situation slight perturbations of the optimal consumption lead to insolvency the maximum principle ceases to be valid in this case 2000 elsevier science b v all rights reserved jel classixcation c61 f32 f34 o16

models of energy use putty putty versus putty clay energy use is inelastic in time series data but elastic in international cross section data two models of energy use reproduce these elasticities a putty putty model with adjustment costs developed by pindyck and rotemberg 1983 and a putty clay model in the pindyck rotemberg model capital and energy are highly complementary in both the short run and the long run in the putty clay model capital and energy are complementary in the short run but substitutable in the long run we highlight the differences in the cross section implications of the models by considering the effect of an energy tax on output in both models in the putty putty model an energy tax that doubles the price of energy leads to a fall in output in the long run of 33 in contrast the same tax in the putty clay model leads to a fall in output of only 5 3

international capital mobility amongst the major industrialised countries too little or too much this paper examines capital flows among the major industrialized countries with a view to assessing m feldstein and c horioka s 1980 claim that international capital mobility is limited it argues that saving investment correlation tests are inherently flawed and proposes an alternative methodology for testing the degree of international capital mobility it finds that capital flows have been excessive in the sense that they are driven by speculative forces rather than by economic fundamentals copyright 1995 by royal economic society

rebound directed technological change and aggregate demand for energy abstract we analyse the long run role of energy in aggregate production the factor share of energy has been remarkably constant despite the relative decline in the price of energy we analyse possible explanations for this observation ruling out the idea that endogenous directed technological change has led to a failure of energy augmenting technology to keep pace with labour augmenting technology instead we propose a model in which a combination of income and substitution effects has driven both shifts in consumption patterns towards existing energy intensive goods and the emergence of new such goods

import dependency and structural adjustment in sub saharan africa one of the effects of structural adjustment programs in sub saharan africa has been the reduction of imports in the face of scarce foreign exchange this article takes the analysis of import demand beyond the traditional income and price determinants to account for factors likely to be important to sub saharan african countries in the 1990s first the effect of demand on imports is reflected by the level of absorption rather than the less direct income variable second because adjustment programs may cut government consumption and through increases in interest rates reduce investment these components of absorption are also considered independently to assess their differential effect on imports third import barriers are often set in dollar terms to limit the use of foreign exchange because reliable and complete data for import restrictions are not available the ratio of exports to debt is included as an indicator of foreign exchange availability to reflect its effect on trade barriers and thus imports the findings suggest that this more comprehensive assessment of import demand will be needed if the size and even direction of changes in import demand in response to policy reform is to be understood and anticipated

what drives us foreign borrowing evidence on external adjustment to transitory and permanent shocks the joint dynamics of us net output consumption and valuation adjusted foreign assets and liabilities characterized empirically following lettau and ludvigson 2004 is shown to be strikingly consistent with current account theory while us consumption is virtually insulated from transitory shocks these contribute considerably to the variation in net output and even more so in gross foreign positions arguably smoothing temporary variations in returns a single permanent shock naturally interpreted as a productivity shock raises consumption swiftly while causing net output to adjust only gradually this leads to persistent procyclical external deficits but interestingly moves gross assets and liabilities in the same direction

trade in nominal assets and net international capital flows abstract nominal assets play a major role in international financial markets while trade in indexed bonds is limited as a result agents are exposed to both price and exchange rate uncertainty nonetheless previous research on net capital flows has assumed the presence of a risk free vehicle to intertemporal asset trade in this paper we develop a general equilibrium intertemporal model with trade limited to nominal bonds and equity we find that exposure to nominal risk dampens net capital flows thus making economies effectively more closed

on the connections between intra temporal and intertemporal trades abstract this paper develops a new theory of international economics by introducing heckscher ohlin features of intra temporal trade into an intertemporal trade approach of current account to do so we consider a dynamic general equilibrium model with tradable sectors of different factor intensities which allows for substitution between intertemporal trade current account adjustment and intra temporal trade goods trade an economy s response to a shock generally involves a combination of a change in the composition of goods trade and a change in the current account flexible factor markets reduce the need for the current account to adjust on the other hand the more rigid the factor markets the larger the size of current account adjustment relative to the volume of goods trade and the slower the speed of adjustment of the current account towards its long run equilibrium we present empirical evidence consistent with the theory

intertemporal optimizing models of trade and current account balance a survey abstract this study surveys the intertemporal optimizing models of trade and current account balance that were developed calibrated and empirically tested since they came into vogue in the 1980s the implications of these models often differ from those of static and dynamic conventional non optimizing models the literature on optimizing models has not only grown reasonably fast but has also witnessed significant advances in methodology and these models have culminated into a distinct strand of new open economy macroeconomics the studies conducted until the late 1980s have used deterministic perfect foresight models while several studies conducted since the 1990s relax the perfect foresight and certainty equivalence assumptions and develop stochastic dynamic general equilibrium models to account for uncertainty confronting the optimizing agents the future research needs to explore the possibility of tracing any preferred specification of household preferences model the effect of time varying discount factor on household utility function and intertemporal budget constraint examine the role of costs in international trade place a parallel emphasis on the empirical verifications of theoretical propositions examine the relative performance of optimizing vis a vis non optimizing models and rationalize the extreme propositions of perfect and imperfect capital mobility in the wake of moderately open capital accounts

how large is the economy wide rebound effect abstract the size of the economy wide rebound effect is crucial for estimating the contribution that energy efficiency improvements can make to reducing greenhouse gas emissions and for understanding the drivers of energy use economy wide rebound from an energy efficiency improvement includes changes in the use of energy to produce complementary and substitute goods or inputs and other flow on effects that affect energy use across the economy as well as the direct rebound due to energy users using more of an energy service that has become less costly as result of improved energy efficiency jevons first argued in 1865 that improvements in energy efficiency increase total energy use and in recent decades researchers have argued for and against this backfire hypothesis theory provides some guidance on the factors affecting rebound but does not impose much constraint on the range of possible responses historical evidence suggests that the improved energy efficiency of recent technology has not reduced energy use because consumption has shifted to more energy intensive goods and services simulations and econometric research have produced mixed results some recent general equilibrium studies find large rebound around 100 but more research is needed to confirm or refute these findings

new estimates of quality of life in urban areas implicit markets capture compensation for intraurban and interregional differe nces in amenities and yield differences in housing prices and wages these pecuniary differences become preference based weights in a qual ity of life index hedonic equations are estimated using microdata fr om the 1980 census and assembled county based amenity data on climati c environmental and urban conditions ranking of 253 urban counties reveals substantial variation within as well as among the 185 urba n areas the quality of life differences across counties within one s msa is almost one half of the difference between the top and bottom ranked counties in the nation copyright 1988 by american economic association

wages rents and the quality of life this study focuses on the role of wages and rents in allocating workers to locations with various quantities of amenities the theory demonstrates that if the amenity is also productive then the sign of the wage gradient is unclear while the rent gradient is positive the theory is extended to include the housing market and nontraded goods these extensions require little modification of the conclusion the empirical work on wages shows that the regional wage differences can be explained largely by these local attributes with the use of site price data implicit prices are estimated and quality of life rankings for the cities are computed

intertemporal prices and the u s trade balance the deterioration of the u s merchandise trade deficit in the 1980s fell mostly on durable goods using a representative agent model the authors show that the key distinction between the trade balance in nondurables and durables is the role of intertemporal prices in the latter a decrease in intertemporal prices associated for example with an exchange rate overvaluation should therefore be expected to worsen the trade balance in durables more than in nondurables this interpretation of the compositional changes of the u s trade balance is supported by their econometric findings copyright 1992 by american economic association

accumulation and growth in a two country model a simulation approach abstract this paper analyzes saving and capital accumulation in a two good growth model of two market economies in which economic agents optimize with perfect foresight the goal is to present a model in which short run dynamics and the steady state are soundly integrated we stress the importance of asset markets as the linkage that transmits disturbances both internationally and intertemporally while many components of the model described below can be found in the literature on optimal consumption investment and international growth models we provide a consistent synthesis our framework permits the analysis of structural adjustment in the global economy and the dynamic effects of a wide range of public policies

the rise of mass consumption societies this paper studies mechanisms behind the rise of mass consumption societies the development process depicted follows the flying geese pattern in which a series of industries take off one after another as productivity improves in these industries each consumer good becomes affordable to an increasingly large number of households which constantly expand the range of goods they consume this in turn generates larger markets for consumer goods which leads to further improvement in productivity for such virtuous cycles of productivity gains and expanding markets to occur income distribution should be neither too equal nor too unequal with too much equality the economy stagnates in a poverty trap with too much inequality the development stops prematurely

a view from the macro side rebound backfire and khazzoom brookes abstract this paper attempts to delineate a few key insights extracted from theoretical macroeconomic considerations of the rebound issue the goal has been to reduce these thoughts to a clear set of assertions that if true would be useful points of reference in the ongoing discussion despite their non empirical nature

structural change and the kaldor facts in a growth model with relative price effects and non gorman preferences u s data reveal three facts 1 the share of goods in total expenditure declines at a constant rate over time 2 the price of goods relative to services declines at a constant rate over time and 3 poor households spend a larger fraction of their budget on goods than do rich households i provide a macroeconomic model with non gorman preferences that rationalizes these facts along with the aggregate kaldor facts the model is parsimonious and admits an analytical solution its functional form allows a decomposition of u s structural change into an income and substitution effect estimates from micro data show each of these effects to be of roughly equal importance

technological progress and sustainable development what about the rebound effect abstract sustainability concepts that rest on the idea of resource or energy efficiency improvements due to technological progress tend to overestimate the potential saving effects because they frequently ignore the behavioral responses evoked by technological improvements efficiency improvements also affect the demand for resources and energy and often an increase in efficiency by 1 will cause a reduction in resource use that is far below 1 or sometimes it can even cause an increase in resource use this phenomenon is commonly labeled the rebound effect which is well known among energy economists but never attracted much attention in ecological economics the paper starts with the traditional neoclassical analysis of the rebound effect in a partial equilibrium framework that concentrates on the demand of one particular energy service such as mobility or room temperature it also provides an overview of some of the main empirical studies based on this model that mostly confirm the existence of the rebound effect but are controversial about its actual importance however we have to go beyond the neoclassical single service model in order to take care of the variety of possible feedback affecting energy use the paper presents two important expansions of the single service model in order to show the potential relevance of the rebound effect to ecological economics first it is shown that in a multi services model it proves to be difficult to make general statements about the relevance of the rebound effect in this case the overall effect of an increase in energy efficiency on total energy use depends on the on the assumptions about the substitutability between the services considered and the direction of the income effect second the paper also tries to take care of the fact that changes in resource use or energy use are frequently just side effects of other forms of technological progress especially technological change of a time saving nature can have a large influence on energy use as many time saving devices for example faster modes of transport require an increase in energy consumption that is frequently reinforced by a rebound effect with respect to time this effect will be especially strong when wages are high and at the same time energy prices are low as is currently the case in most industrialized countries consequently the paper also provides a strong argument for the introduction of energy taxes

productivity shocks non traded goods and optimal capital accumulation this paper considers the interaction of saving and investment in determining the current account for a small open economy subjected to productivity shocks by emphasizing the distinction between traded and non traded goods the analysis highlights the crucial role of the real exchange rate in macroeconomic adjustment our results demonstrate the importance of intertemporal substitution for determining the response of investment to anticipated productivity disturbances we also show how the correlation of movements in saving and investment following an anticipated disturbance depends critically on relative sectoral factor intensities

current account dynamics in a finite horizon model abstract this paper examines the response of the current account in a small open economy to a permanent change in the price of imported intermediate goods to do so it extends blanchard s 1985 open economy model to incorporate the capital stock with adjustment costs a la hayashi 1982 a price increase in imported intermediate goods can be viewed as a combination of transfer payments abroad and capital taxation the former effect leads to a current account deficit and the latter leads to a current account surplus the overall effect depends on the relative magnitude of these effects

capital accumulation and the current account in a two country model abstract this paper examines the joint determination of international debt and capital accumulation in a two country model national rates of time preference are endogenous adjusting along an optimal path to come into equality with one another in the steady state the characteristics of short run current account dynamics are crucially linked to world capital accumulation and to a country s long run net external asset position steady state creditor countries tend to have current account surpluses during episodes of world output growth and vice versa for debtor countries this gives rise to possible non monotonic adjustment in the current account and consumption

effects of government spending on the current account with endogenous time preference this paper extends a previous model to set up a small open economy with perfect capital mobility and examines the effects of an unanticipated permanent rise in public spending on the optimal rates of private consumption and the current account the novelty of the paper is consideration of the relationship between private and public consumption in the household s utility function as well as endogenous rates of time preference it is found that the key factor determining the adjustment patterns of private consumption and the current account is the marginal utility of private consumption and of public spending which results from endogenous recursive preferences

well being across america abstract this paper uses behavioral risk factor surveillance system data to study life satisfaction and mental health across the geography of the united states the analysis draws on a sample of 1 3 million citizens initially we control for people s personal characteristics though not income there is no correlation between states regression adjusted well being and their gdp per capita states like louisiana plus washington d c have high psychological well being levels california and west virginia have low well being when we control for incomes satisfaction with life is lower in richer states just as compensating differentials theory would predict nevertheless some puzzles remain

inequality with ordinal data the standard theory of inequality measurement assumes that the equalisand is a cardinal quantity with known cardinalization however one often needs to make inequality comparisons where either the cardinalization is unknown or the underlying data are categorical we propose an alternative approach to inequality analysis that is rigorous has a natural interpretation and embeds both the ordinal data problem and the well known cardinal data problem we show how the approach can be applied to the inequality of happiness and of health status

testing an optimizing model of the current account via the consumption function abstract as the intertemporal allocation of consumption lies at the heart of the optimizing approach to current account determination we assess the validity of this new view by testing an open economy consumption function this method avoids some interpretation difficulties in previous studies for the four countries examined we generally could not reject the overidentifying restrictions imposed by the specification of our model an extended version of the model does not find any clear evidence of substitution between private and public consumption all our results are robust to two different measures of the external asset stock

on the international capital ownership pattern at the turn of the twenty first century abstract this paper studies the trends of current accounts and accompanying capital movements from a growth theoretic perspective and to predict the credit debt structure among major industrialized countries the united states japan and west germany at the turn of the twenty first century the past movements of national saving and investment support the habitat view by feldstein and horioka that the supply of savings create investment where it is generated rapid increases in the united states foreign debt may imply however the relevance of the traditional view that capital moves so as to equate its rate of returns the simulation exercises shows that the ratio of external debt to capital stock in the united states will rise to 30 40 over the long run in absence of the recovery of its saving ratio to the historical standard in the 1970s

are windfalls a curse abstract a puzzling feature of temporary terms of trade booms is that some countries have responded to such windfalls by running current account deficits furthermore those countries that ran current account deficits failed to attain greater post boom growth rates indicating the deficits were consumed or invested in low quality projects the point we make is that the structure of the fiscal process is critical in determining outcomes if fiscal control is unitary then the consumption smoothing effect is operative and representative agent models of the current account have predictive power however if control is divided among several fiscal claimants a voracity effect appears which counteracts the consumption smoothing effect leading to a deterioration of the current account in response to a positive temporary shock we model the interaction among fiscal claimants as a dynamic game and show that in equilibrium aggregate appropriation increases more than the windfall itself this results in a deterioration of the current account we also show that all the windfall is dissipated with the country experiencing no increase in welfare 1998 elsevier science b v

dynamic factor demands and the effects of energy price shocks a dynamic model is used to understand how sharp changes in energy prices affect investment behavior employment and energy use the authors discuss the theory behind their model selection model specifications estimation methods and data list parameter estimates and elasticities for the selected model and describe the simulations they conclude that 1 the data strongly reject the hypothesis of constant returns to scale within their specification of aggregate production 2 the data indicate adjustment costs on labor are small and 3 their results help reconcile some of the conflicting estimates of energy demand elasticities appearing in recent literature 23 references 3 figures 3 tables

structural change and convergence of energy intensity across oecd countries 1970 2005 abstract this paper uses new and unique data derived from a consistent framework of national accounts to compute and evaluate energy intensity developments across 18 oecd countries and 50 sectors over the period 1970 2005 we find that across countries energy intensity levels tend to decrease in most manufacturing sectors in the service sector energy intensity decreases at a relatively slow rate with diverse trends across sub sectors a decomposition analysis reveals that changes in the sectoral composition of the economy explain a considerable and increasing part of aggregate energy intensity dynamics a convergence analysis reveals that only after 1995 cross country variation in aggregate energy intensity levels clearly tends to decrease driven by a strong and robust trend break in manufacturing and enhanced convergence in services moreover we find evidence for the hypothesis that across sectors lagging countries are catching up with leading countries with rates of convergence that are on average higher in services than in manufacturing aggregate convergence patterns are almost exclusively caused by convergence of within sector energy intensity levels and not by convergence of the sectoral composition of economies

risk and capital accumulation in a small open economy this paper examines the dynamics of capital accumulation in a small open economy where home capital is risky and consumers are risk averse it is assumed that the economy participates in perfect international bond markets but that risky home capital is held by domestic residents only under these assumptions the rate of investment is no longer independent of the saving rate and they are positively related as a result a rise in savings does not increase foreign investment by the same amount but by less and in some situations the quantity of foreign assets may even decrease

consumption smoothing in a small cyclically volatile open economy evidence from new zealand abstract new zealand s current account of the balance of payments has been persistently in deficit since the early 1970s and increased markedly during the late 1990s should this cause significant concern for such a small cyclically volatile open economy our results show that var1 and var2 forms of the traditional intertemporal consumption smoothing model reflect very satisfactorily the volatile directions and turning points observed that the data are not consistent with consumption tilting to the present and that new zealand has had considerable success to date in consumption smoothing around its average 5 current account deficit perhaps more unexpectedly a bergin sheffrin type model of a small open economy with variable interest rates and exchange rates has not performed noticeably better

current account determination with traded capital goods abstract a model of real current account determination in a small open economy with many final goods sectors and traded capital goods is presented the model emphasizes the ambiguity of investment response and encourages sector specific empirical methods

the current account and the optimal government debt abstract in this paper we analyze the optimal response of the current account and the government debt to real disturbances permanent and temporary lumpsum taxes are not feasible and the government income is raised according to the ramsey rule for optimum taxation we show that permanent disturbances have no effects on either the private or the government current account if initially there are no deficits starting off from the same initial situation both the private sector and the government develop a deficit on current account in response to a temporary disturbance

the current account in developing countries a perspective from the consumption smoothing approach according to the consumption smoothing view a high degree of capital mobility implies that agents are able to fully smooth their consumption in the face of shocks this article develops aframework to test whether indeed the current account in developing countries acts as a buffer to smooth consumption in the face of shocks to national cash flow which is defined as output less investment less government expenditure using vector autoregression analysis we estimate the optimal consumption smoothing current account with data from a sample of forty five developing countries we find that for a majority of the countries the hypothesis offull consumption smoothing cannot be rejected suggesting that capital mobility may after all be quite high in this group of countries

current accounts in debtor and creditor countries the authors reexamine a classic question in international economics what is the current account response to a transitory income shock such as a temporary improvement in the terms of trade a transfer from abroad or unusually high production to answer this question they construct a world equilibrium model in which productivity varies across countries and international borrowing and lending take place to exploit good investment opportunities despite its conventional ingredients the model generates the novel prediction that favorable income shocks lead to current account deficits in debtor countries and current account surpluses in creditor countries evidence from thirteen oecd countries broadly supports this theoretical prediction

budget deficit persistence and the twin deficits hypothesis abstract this paper gauges the twin deficits hypothesis i e a positive causal relationship between the external and budget deficits this relationship is measured by the responses of the external deficit to changes in the budget deficit induced by blanchard s model these responses are positively affected by the birth rate and by the degree of persistence of the budget deficit empirical results for the canadian and us economies reveal that although the relevant birth rates are small the great persistence of the budget deficits yields responses that are numerically large and statistically positive this contrasts with previous tests of the twin deficits hypothesis which have never formally taken into account the stochastic properties of the budget deficit

current account deficits in africa stylized facts and basic determinants abstract this article analyzes the behavior of current account deficits in africa the findings are that deficits are i not very persistent ii positively linked with domestic growth iii strongly linked with public and private savings suggesting that fiscal consolidation in imf supported programs may be relatively effective iv linked with aid flows so as to close the external gap and v linked with currency depreciation and the terms of trade

the economy wide rebound effect from improved energy efficiency in swedish industries a general equilibrium analysis the objective of this paper is to analyse the rebound effect from increased efficiency in industrial energy use in sweden energy efficiency improvements can have significant micro and macroeconom

twin deficit or twin divergence fiscal policy current account and real exchange rate in the u s abstract in spite of concerns about twin deficits fiscal and the current account deficits for the united states economy empirical evidence suggests that twin divergence is a more usual feature of the historical data i e when fiscal accounts worsen the current account improves and vice versa this paper empirically studies the effects of fiscal policy government budget deficit shocks on the current account and the real exchange rate during the flexible exchange rate regime period based on var vector auto regression models we identified exogenous fiscal policy shocks after controlling for business cycle effects on fiscal balances in contrast to the predictions of most theoretical models the u s results suggest that an expansionary fiscal policy shock or a government budget deficit shock improve the current account and depreciate the real exchange rate increases in private savings and declines in investment contribute to the current account improvement while a nominal exchange rate depreciation as opposed to a relative price level change is mainly responsible for the real exchange rate depreciation the twin divergence of fiscal balances and current account balances is also explained by the prevalence of output shocks i e output shocks more than fiscal shocks appear to drive the co movements of the current account and the fiscal balance

testing a present value model of the current account evidence from us and canadian time series abstract this paper presents a simple model of current account determination based upon the permanent income hypothesis of private consumption behavior under rational expectations the model employs a representative national agent who is forward looking and can borrow and lend at a constant world interest rate a present value relationship for the current account is derived and its implications are tested on post war data for the united states and canada testing is done using the framework developed by campbell and shiller 1987 which allows the forcing variables in the model to be difference rather than trend stationary our empirical results indicate the most stringent restrictions of the present value model are strongly rejected by the us and canadian data however less formal procedures suggest the consumption smoothing model has some ability to track the dynamic behavior of the us current account jel f32

present value tests of an intertemporal model of the current account abstract this paper first demonstrates that in a simple intertemporal open economy model the current account is equal to the expected decline of the present discounted value of net output of a country net output is defined as gross domestic product less the sum of investment plus government spending it then uses econometric methods for present value models to analyze the current account for four countries in two of these countries the model does a satisfactory job of explaining the current account

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

a climate change policy induced shift from innovations in carbon energy production to carbon energy savings abstract we develop an endogenous growth model with capital labor and carbon energy as production factors and three technology variables that measure accumulated innovations for carbon energy production carbon energy savings and neutral growth all markets are complete and perfect except for research for which we assume that the marginal social benefits exceed the marginal private benefits by factor four the model constants are calibrated so that the model reproduces the relevant global trends over the 1970 2000 period the model contains a simple climate module and is used to assess the impact of induced technological change itc for a policy that aims at a maximum level of atmospheric co2 concentration 450 ppmv itc is shown to reduce the required carbon tax by more than a factor 2 and to reduce costs of such a policy by half when we do not constrain aggregate r d expenditures to benchmark levels costs are further reduced numerical simulations show that knowledge accumulation shifts from energy production to energy saving technology we discuss reasons for differences between our results and earlier results reported in the literature

macroeconomic policy exchange rate dynamics and optimal asset accumulation the paper develops a model of exchange rate and current account determination for a small economy peopled by infinitely lived utility maximizing households in this setting a central bank purchase of foreign exchange has no real effects when central bank foreign reserves earn interest at the world rate and proceeds are returned to the public in contrast an increase in the monetary growth rate does have real effects even in the long run the model developed here implies that an increase in government spending may lead to a surplus on current account the external adjustment process predicted by the model is one in which consumption real balances and external assets all rise or fall simultaneously

growth pollution policy abstract we investigate long run patterns in pollution flows in an optimally regulated growing economy in which consumption and environmental quality are imperfectly substitutable and pollution is a by product of production we show that by production implies that a scale effect will always drive increasing pollution when productivity is sufficiently low on the other hand if a clean technology exists it will always be chosen in the long run hence emissions will approach zero because for any strictly positive flow of pollution willingness to pay to reduce that flow grows without bound as consumption grows without bound whereas the cost of switching is bounded we clarify the intuition using a specified model in which pollution arises as a by product of the use of natural resource inputs