effects of budgetary policies in open economies the role of intertemporal consumption substitution an economy s optimal response to temporary and anticipated future changes in government spending is examined in the context of a two country model which highlights the role of the elasticity of int

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

non traded goods and the international transmission of fiscal policy abstract this paper looks at the effect of non traded goods on the international transmission of fiscal policy intertemporal movements in the price of non traded goods affect real interest rates differentially between countries the real interest rate effects of a fiscal expansion depend crucially upon both the composition of fiscal spending and the intertemporal elasticity of substitution with a high intertemporal elasticity of substitution in consumption a temporary fiscal expansion on non traded goods will lead consumer real interest rates to move in opposite directions between countries

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

fiscal spending the terms of trade and real interest rates this paper investigates the international movements in real interest rates and investment spending in response to a temporary fiscal expansion in one country it is shown that fiscal expansion may lead investment spending to be negatively correlated across countries this is because real interest rates relevant for investment purposes may move asymmetrically between countries in response to an expansion in fiscal spending the crucial factors which determine whether or not this occurs are a a transfer criterion which depends upon the spending propensities of the government relative to those of private consumers and b the intertemporal elasticity of substitution in consumption

the intertemporal effects of international transfers abstract the transfer problem is studied in an overlapping generations model with government debt the transfer is from a creditor country to a debtor country it is shown that a the effects of transfers depend on their method of finance and on their method of disbursement b the short run effects of the transfers may differ from the long run effects and c the transfers may improve welfare in both countries or they may increase welfare in the country making the transfer and reduce welfare in the country receiving the transfer and these possibilities cannot be ruled out by the stability argument

on savings and investment dynamics in a small open economy abstract this paper constructs a stochastic overlapping generations two country model of savings and investment under conditions of perfect international capital mobility the focus of the analysis is on the relationship between savings and investment dynamics in a small open economy in response to stochastic variations in domestic and or foreign production technologies the model is simulated under alternative specifications of the stochastic distribution governing both technologies this provides insight into the very complicated nature and rich diversity of possible relationships between savings and investment dynamics

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

fiscal deficits and relative prices in a growing world economy abstract this paper studies the transmission of fiscal disturbances between countries and the effect of those disturbances on worldwide capital intensity in a context of growth the model developed to address these issues allows for the production of both nontradable and relatively capital intensive tradable goods a central finding is that factor markets can be a major channel for the communication of fiscal policy shocks to world interest rates to private saving decisions and ultimately to global asset supplies and their distribution among countries particular predictions of the model illustrate how changes in public debt ratios and shifts in government spending patterns affect resource allocation and the welfare of various generations both at home and abroad

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

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

the effect of school choice on participants evidence from randomized lotteries school choice has become an increasingly prominent strategy for enhancing academic achievement to evaluate the impact on participants we exploit randomized lotteries that determine high school admission in the chicago public schools compared to those students who lose lotteries students who win attend high schools that are better in a number of dimensions including peer achievement and attainment levels nonetheless we find little evidence that winning a lottery provides any systematic benefit across a wide variety of traditional academic measures lottery winners do however experience improvements on a subset of nontraditional outcome measures such as self reported disciplinary incidents and arrest rates

intergenerational aspects of public transfers borrowing and debt the paper analyzes intergeneration distributional effects of taxes transfer payments public borrowing and debt a two period life cucle model with overlapping generations is constructed the model has two specific features private wealth in both periods enter as arguments in the preference function and the individuals inelastically supply labor in both periods it turns out that some fiscal policy actions favor both of the currently lliving generations possibly at the expense of future generations while other actions generate conflicts between the currently living generations the analysis also shows that it makes considerable difference whether the burden of public spending debt and borrowing is defined in terms of wealth consumption and utility the different implications of foreign vs domestic debt are examined

aggregate spending and the terms of trade is there a laursen metzler effect this paper investigates the spending and current account effects of terms of trade shifts in a model where households maximize utility over an infinite planning period in the framework developed here an economy specialized in production must experience a fall in aggregate spending and a current surplus as a result of an unanticipated permanent worsening in its terms of trade the paper s model thus provides a setting in which the current account deficit predicted by laursen and metzier harberger and others fails to materialize

explaining the absence of international factor price convergence abstract as capital markets have become integrated factor prices have not converged as expected this paper provides an explanation the key observation is that non specific output risks are borne by capital making international portfolio diversification a dominant strategy capital market integration can elicit many patterns of factor price response under this circumstance factor prices will move in parallel if countries are identical when countries differ factor prices may diverge or even have their relative sizes reversed the integration of capital markets affects welfare through changes in risk and in overall returns to savings welfare need not improve

the real exchange rate the capital stock and fiscal policy abstract this paper studies the joint determination of aggregate supply the real exchange rate and the current account in response to changes in government spending in a model where there is no uncertainty in the aggregate but where individuals are uncertain about their lives duration international capital mobility fixes the steady state capital stock and aggregate supply in a small country whereas in a large country the steady state capital stock is endogenous an increase in government spending is more likely to generate a real exchange rate depreciation in a small country since the loss of wealth associated with cumulated current account deficits does not increase rest of the world spending in the case of a large country current account deficits are wealth transfers to the rest of the world and increase foreign spending thus the normal long run response is an increase in the relative price of domestic output

the terms of trade and the current account the harberger laursen metzler effect the paper examines the effect of terms of trade changes on a small country s spending and current account assuming optimizing behavior in an intertemporal framework with perfect international capital mobility a temporary future terms of trade deterioration implies a deterioration improvement of the trade balance whereas a permanent terms of trade deterioration has an ambiguous effect depending on the rate of time preference nominal and real variables are considered via exact price indexes two periods and an infinite horizon are examined

current account dynamics and the terms of trade harberger laursen metzler two generations later this is a study of the current account dynamics resulting from the savings and investment dynamics in a small open economy which is subject to exogenous changes in its terms of trade and in world interest rates anticipated and unanticipated as well as temporary and permanent terms of trade changes have very different effects there is however a general tendency towards cycles in both savings and investment which gives rise to cycles in the current account it is shown that the classic harberger laursen metzler effect on saving of a terms of trade deterioration can have any sign for plausible parameter values both for temporary and permanent disturbances

the dutch disease and intergenerational welfare governments in resource abundant economies face a tradeoff between transferring wealth to present generations and saving for future generations employing an overlapping generations framework with endogenous growth this article analyses the intergenerational welfare effects of 1 a wealth transfer policy where the entire wealth is transferred to the generations alive at present 2 an income transfer policy where the wealth is saved and the permanent income of the wealth is transferred to all present and future generations forever not surprisingly present generations are unambiguously better off with the wealth transfer policy less trivially however the wealth transfer policy can be associated with higher welfare also for future generations the intuition for this result is that while a wealth transfer depresses growth only in the periods subsequent to the transfer income transfers constitute a permanent drag on growth perhaps counter to the naive intuition the policy of saving the wealth and

government debt and economic growth in an overlapping generations model prior studies have shown that an increase in government debt raises the real interest rate and lowers the rate of economic growth in an overlapping generations model of endogenous growth this paper shows that an increase in government debt may not increase the real interest rate with the real interest rate being greater than the growth and that an introduction of government debt will increase the growth rate of per capita output if the growth rate is greater than the real interest rate and will decrease the growth rate if the growth rate is less than the real interest rate recent decades have seen a large increase in the share of government debt in national income in many countries this paper develops an endogenous growth model of overlapping generations to examine the effect of government debt on the rate of economic growth most prior studies of the effects of government policies on economic growth have assumed that government debt is absent romer 1986 jones and manuelli 1990 king and rebelo 1990 and rebelo 1991 showed that when government spending is not productive an increase in the income tax rate will lower the rate of per capita output growth 2 barro 1990 showed that an increase in government spending may either increase or decrease the rate of growth in a model with productive government spending government debt was incorporated in endogenous growth models by king 1992 and van der ploeg and alogoskoufis 1994 king 1992 developed a model of endogenous growth and showed that a necessary condition for the feasibility of perpetual debt finance is that labor s share of income must be greater than two thirds van der ploeg and alogoskoufis 1994 developed a blanchard type overlapping generations og model of endogenous growth and found that an increase in government debt arising from an intertemporal shift in taxation reduces the growth rate this paper analyzes the effect of government debt by developing a diamond type of og

taxing capital in a large open economy abstract this paper analyzes capital taxation in a dynamic optimizing equilibrium model of a large open economy it is shown that the existence of current account imbalances may yield surprising results for example if a country has a current account deficit the tendency of an increased tax on investment to lower wages is dampened if the deficit is sufficiently large an increased investment tax may actually increase both wages and welfare in the long run a country with a current account surplus may find that temporary investment incentives improve its current account in all but the short run

international market linkages and optimal monetary policy abstract the interrelation among portfolio choice and labor supply decisions and real balance effects is examined under flexible exchange rates on the asset menu are home currency domestic government bonds and foreign bonds with commodity market linkages the real balance effect is highlighted as the inefficiency of an economy with positive government bonds is demonstrated while the additional linkage of interest rates through covered interest parity may transform an economy where only money is useful into an economy in which both money and government bonds are beneficial

anticipated budget deficits and the real exchange rate this paper explores the relationship between government budget deficits and the real exchange rate while the conventional view is that a deficit generates real exchange rate appreciation the experience of many small economies appears to contradict this belief in this model the impact of an announced future deficit depends on the elasticity of intertemporal substitution if it is high an announced deficit gives rise to immediate real exchange rate appreciation a deterioration in the trade balance and a fall in welfare of current generations when a low elasticity of intertemporal substitution exists however an announced deficit may generate a real depreciation with the opposite impact on the trade balance and welfare moreover in this case the announcement of a future deficit will increase the intertemporal volatility of the real exchange rate but leave its average value unaffected

are national pension systems efficient if labor is im perfectly mobile abstract in this paper we analyze the effects of labor market integration on national unfunded public pension systems that are organized according to a place of residence principle with this principle labor might migrate for purely fiscal reasons thus some kind of coordination becomes necessary we first show that for the case of unrestricted labor mobility the equalization of contributions is necessary and sufficient for efficiency if the pension systems remain decentralized however national decision makers do not in general have an incentive to voluntarily stick to equalized contributions with a segmented labor market where one segment is costlessly mobile whereas the other segment is completely immobile the coordination requirements are far more complicated if migration cannot compensate for differences in national fertilities if it can the efficiency of equalization turns out to be robust finally we show that replacing the principle of residence with the principle of nationality does not eliminate the risk of fiscal externalities

international coordination of fiscal deficits abstract nearly all existing studies of international coordination of fiscal deficits focus on aggregate demand aspects of the problem in contrast this paper adopts a dynamic general equilibrium perspective and emphasizes the public finance side of fiscal deficits in a world with international capital mobility the fiscal deficit of any single government affects world interest rates and therefore influences intertemporal resource allocation in all countries the paper shows that these international externalities may result in inefficiently large fiscal deficits high interest rates and low levels of welfare if international policy coordination is absent

steady state solutions of optimal tax mixes in an overlapping generations model abstract this paper analyzes steady state solutions of optimal tax mixes in an overlapping generations model of heterogeneous individuals with a utilitarian social welfare function a test with cobb douglas utility functions shows that an uneven distribution of the innate abilities leads to high rates of consumption and wage income taxes and a high level of a lump sum transfer the more the labor force works the higher the optimal tax on wage income significant differences in individual preferences lead to low rates of consumption and wage income taxes and to a high rate of interest income tax with identical preferences the rate of interest income tax is zero

consumption permanent income and financial wealth in canada empirical evidence on the intertemporal approach to the current account the intertemporal approach to the current account is rejected as a complete explanation of the canadian current account federal government fiscal policy plays an important role in the determination of the current account a private sector agent that treats its holdings of net liabilities of the federal government as net wealth accumulates the sum of these liabilities and the net liabilities of non residents as part of an intertemporally optimal plan this result indicates both fiscal policy and intertemporal considerations are important determinants of current account behaviour consommation revenu permanent et richesse financiere au canada resultats empiriques d une approche au compte courant mettant l accent sur la dimension intertemporelle cet article montre que l approche mettant l accent sur la dimension intertemporelle ne produit pas une explication complte du comportement du compte courant canadien i1 semble que la politique fiscale du gouvernement federal joue un r6le important dans la conformation du compte courant un agent economique prive composite qui traite son portefeuille de dettes nettes du gouvernement federal comme richesse nette va accumuler la somme de ces dettes et des dettes nettes des non residents dans le cadre de son plan intertemporel optimal les resultats montrent que la politique fiscale et des considerations intertemporelles sont des elements determinants du comportement du compte courant

optimal intergenerational redistribution in a two country model with endogenous fertility we analyze a model with two countries that are linked by anintegrated capital market fertility and thus population growth isendogenously determined by households our analysis proceeds inthree steps first we characterize an optimal intertemporal andinterregional allocation in a model with endogenous fertility andtwo countries second we look for an institution supporting theoptimal allocation it turns out that in general a decentralizedequilibrium is inefficient national public pension systems withbenefits that are related to the number of children implements theoptimal allocation this provides a justification for governmentinterventions beyond its role as a night watchman third weanalyze whether national governments have the right incentives toimplement the optimal system it turns out that every nationalgovernment has an incentive to deviate from the optimal structureand to shift part of the burden to the other country policyimplications for the institutional arrangements within the europeanunion are discussed

reforming social security assessing the effects of alternative funding strategies population ageing implies that the large pay as you go social security programmes implemented in many oecd economies will run into severe financial problems by means of a numerical overlapping generations model this paper investigates the intergenerational welfare effects of a transition to funded security programmes such programmes imply permanent increases in the welfare of the young and unborn generations it is demonstrated that the size of the welfare gains varies significantly between alternative funding strategies a nonindividualized funding strategy characterized by increased government asset accumulation triggers considerable welfare gains through increased asset returns in the future even larger welfare gains may be realized by an individual funding strategy characterized by increased asset accumulation accompanied by an adoption of actuarial supplementary pensions i e actuarial supplementary pensions combined with a fixed minimum pension which reduces future tax distortions drastically

portfolio choice consumption and welfare when rates of return are related to prices of consumer goods abstract this paper generalizes the two period model of portfolio selection under uncertainty by decomposing the aggregate consumption in each period into several goods the prices of some of which are positively related to rates of return on some assets the effect of these relations on the choice of portfolio is analyzed the effects on the chosen portfolio of a lateral translation and of a mean preserving increase in the risk of the distributions of the random variables are analyzed a generalization of the hicks compensation to the case where the prices of consumer goods are positively related to rates of return on assets is offered and welfare implications are drawn

social security and savings plans in overlapping generations models abstract this paper examines the impact of social security and saving plans on a simple overlapping generations model with no uncertainty the model is related to and provides a reconciliation of the diamond and samuelson gale models of public debt and public capital savings plans and pay as you go social security are seen to have quite different effects depending on the assumptions governing the growth rates of public debt and capital and it is also shown that the social security program proposed by feldstein is infeasible in the steady state he adopts as a starting point

effects of unilateral climate policy on terms of trade capital accumulation and welfare in a world economy we present a two good two country overlapping generations model where emissions arise from production and each country has a domestic emission permit system when one country unilaterally reduces her cap on emissions her output available for domestic and foreign consumption diminishes more than in the other country with unchanged consumption expenditure shares for both goods the domestic terms of trade improve while capital stocks decline in the reducing and less strongly in the non reducing country improving terms of trade in the reducing country and falling capital stocks lead in total to welfare losses in both countries however if the country which unilaterally reduces her emission permits is a net creditor to the world economy and the golden rule applies her own welfare loss remains below that of the non reducing country

welfare improving debt policy under monopolistic competition abstract we analyse the effects of debt policy in an overlapping generations model with monopolistic competition debt crowds out capital and raises interest rates but unlike competitive models this is welfare improving for all generations if the elasticities of substitution in production are low in a non competitive model the social marginal product of capital could be negative while the rate of interest exceeds the population growth rate the latter two are non negative and profits exceed investment

tax reform and external balance abstract this paper examines the effect of a transformation from capital taxation to consumption in an open economy with the residential capital tax rate being endogenous an increase in the domestic consumption tax rate decreases the interest rate increases capital accumulation and increases the domestic country s net foreign asset holdings and trade surplus with the territorial capital tax rate being endogenous an increase in the domestic consumption tax rate may either increase or decrease the domestic country s interest rate net foreign asset holdings and trade surplus depending on the interest elasticity of capital demand