macroeconomics of stagflation under flexible exchange rates the concerns of macroeconomic policy in the industrial countries in recent years have shifted the focus of open economy ncroeconomics to new and interesting problems although no synthesis or a fully coherent theory of policy has yet emerged from this research the results have already led to major revisions in views about the nature of the problems that policy has to deal with this paper provides a selective survey and discussion of son of the results of recent research with errhasis on their inplications for policy pentti j k kouri department of economics 269 mercer street second floor new york university new york n y 10003 macroeconomics of stagflation under flexible exchange rates

government spending effects in low income countries abstract despite the voluminous literature on fiscal policy very few papers focus on low income countries lics this paper develops a new keynesian small open economy model to show analytically and numerically that several prevalent features of lics dependence on external financing public investment inefficiency and a low degree of home bias in public investment play important roles in government spending effects external financing increases the resource envelope mitigating the crowding out effects but it tends to appreciate the real exchange rate lowering traded output although capital scarcity in lics implies high returns to public capital low marginal investment efficiency can substantially dampen the output multiplier also public investment may not be effective in stimulating output in the short run as lics often rely on imports to a large extent to carry out public investment projects weakening its role as a short run demand stimulus

habits costly investment and current account dynamics abstract we analyze the current account dynamics for a small country model with habit forming consumers and costly investment the model has several empirical and policy implications i it is consistent with stylized facts regarding the effects of productivity shocks and increases in fiscal spending and regarding the savings investment co movement ii the long run effect of a temporary shock on net foreign assets is often opposite to that of a permanent shock iii under strong habit persistence the welfare dynamics are sluggish so that a beneficial tax financed fiscal policy may have a harmful hangover effect on welfare

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

output inflation and stabilization in a small open economy evidence from mexico abstract we study the sources of fluctuation in output and inflation for mexico considering fiscal real money growth exchange rate and asset market disturbances which are identified using an estimable equilibrium model incorporating important features of high inflation economies changes in inflation are influenced by all shocks while output growth is explained by real fiscal and asset shocks the results lend strong support to the fiscal view of inflation and to a lesser degree support the balance of payments view we also find that higher inflation and higher budget deficits cause each other to spiral upward

interpreting the macroeconomic time series facts the effects of monetary policy existing theory and evidence on the effects of monetary policy are reviewed substantial room for disagreement among economists remains new evidence based on multivariate time series studies of several countries is presented while certain patterns in the data consistent with effective monetary policy are strikingly similar across countries others particularly the tendency of interest rate increases to predict high inflation are harder to reconcile with effective monetary policy

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

domestic and foreign disturbances in an optimizing model of exchange rate determination abstract this paper analyzes the effects of various disturbances of domestic and foreign origin in a small open economy under imperfect capital mobility in which the behavioral relationships are divided from optimization by the private sector in this model the domestic economy jumps instantaneously to its new equilibrium following a change in either the domestic monetary growth rate or domestic fiscal policy in response to a disturbance in either the foreign interest rate or inflation rate the economy undergoes an initial partial jump towards its new equilibrium which it thereafter approaches gradually the implications of these results for exchange rate adjustments and the insulation properties of flexible exchange rates are discussed

on exchange rate stabilization abstract this paper extends calvo s 1986 and obstfeld s 1985 analyses of stabilization policies through predetermined exchange rates in a few directions the graphic and analytical techniques used here make it possible to perform a variety of policy experiments under a general utility function and in the presence of a consumer durable good or under time nonseparable preferences it also shows that the dynamic process of exchange rate stabilization exhibits hysteresis effects that is the steady state behavior of the economy depends on the initial condition and a temporary stabilization policy has a permanent effect on the economy

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

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

the effects of monetary policy using structural factor analysis the traditional vector autoregression var method is widely used to trace out the effects of monetary policy innovations on the economy however this method suffers from the curse of dimensionality so that in practice vars are estimated on a limited number of variables leading to a potential missing information problem in this article we use the method of structural factor analysis to evaluate the effects of monetary policy on key macroeconomic variables in a data rich environment this methodology allows us to extract information on monetary policy and its impact on the economy from a much larger data set than is possible with the traditional var method we propose two structural factor models one is the structural factor augmented vector autoregressive sfavar model and the other is the structural factor vector autoregressive sfvar model compared to the traditional var both models incorporate information from hundreds of data series series that can be and are monitored by the central bank in

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

output inflation and stabilization a counterfactual analysis abstract we estimate a small open economy macro model in which movements in inflation and output are driven by fiscal real monetary exchange rate and asset disturbances we use 1980 s data from bolivia and brazil each of which undertook stabilization programs though only bolivia s succeeded an important part of our analysis is counterfactual where hypothetical paths of output and inflation under alternative policymaking scenarios are investigated for bolivia there is clear evidence that deficits affect inflation largely through their effects on money growth and do not have much influence on output external shocks are important for brazilian inflation

government spending and the real exchange rate i study the effect of government spending on the real exchange rate in an open economy version of the sidrauski model with a time varying rate of time preference that introduces complementarity between consumption at different points in time i show that a balanced budget fiscal expansion causes a real depreciation and a current account surplus if the expansion falls on traded goods if the increase falls instead on nontraded goods both the stylized results of a real appreciation and a current account deficit and the perverse result of an appreciation and a surplus can occur

escaping nash inflation an ordinary differential equation ode gives the mean dynamics that govern the convergence to self confirming equilibria of self referential systems under discounted least squares learning another ode governs escape dynamics that recurrently propel away from a self confirming equilibrium in a model with a unique self confirming equilibrium the escape dynamics make the government discover too strong a version of the natural rate hypothesis the escape route dynamics cause recurrent outcomes close to the ramsey commitment inflation rate in a model with an adaptive government

the rate of time preference and dynamic economic analysis strong restrictions on the structure of preferences are a central feature in the received theory of intertemporal allocation in fact most of the modern literature concerned with capital theoretic problems represents preferences by a functional in which an additive utility function is discounted by a constant rate of time preference this specification is attractive because it is analytically tractable in dynamic models and it clearly delineates how tastes and opportunities interact to determine an economy s household s paths of consumption and capital formation however its rigid structure constancy of time preference severely limits the conclusions and explanatory power of the corresponding models this paper considers a class of utility functionals in continuous time which have the appealing feature that the rate of time preference depends systematically on an index of aggregate future consumption the more flexible structure embodied in these functionals leads to important generalizations and

weakly nonseparable preferences and distortionary taxes in a small open economy this paper examines the dynamic effects of distortionary taxes in a small open economy the employed utility function implies both endogenous rates of time preference and a tractable form of weak nonseparability between consumption and leisure weak nonseparability induces novel long run welfare and wealth effects of taxes and generates very different current account movements endogenous rates of time preference facilitate the examination of a tax on international borrowing and lending copyright 1994 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

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

monetary and fiscal policy under deep habits allowing habits to be formed at the level of individual goods deep habits can radically alter the fiscal policy transmission mechanism as the counter cyclicality of mark ups this implies can result in government spending crowding in rather than crowding out private consumption in the short run we explore the robustness of this mechanism to the existence of price discrimination in the supply of goods to the public and private sectors we then describe optimal monetary and fiscal policy in our new keynesian economy subject to the additional externality of deep habits and explore the ability of simple policy rules to mimic fully optimal policy we find that the presence of deep habits at empirically estimated levels can imply large externalities that significantly affect the conduct of monetary and tax policy however despite the rise in government spending multipliers implied by deep habits government spending is barely used as a stabilisation tool under the optimal policy

the importance of composition of fiscal policy evidence from different exchange rate regimes abstract we study the macroeconomic effects of fiscal policies in an open economy we emphasize two transmission mechanisms the cost channel by which wage government spending and labor taxes raise the real wage firms must pay and the exchange rate channel by which the nominal exchange rate shifts induced by fiscal policy have real effects if some prices and wages are sticky the latter channel implies that changes in wage government spending or in labor taxation should have different effects under flexible than under fixed exchange rates in a 1964 93 panel of oecd countries we find significant evidence for both channels moreover we find that the real product wage and profitability are more responsive than quantities employment and output to fiscal policy innovations

monetary expansion and real exchange rate dynamics this paper examines the effect of a change in the rate of monetary expansion on the dynamics of the real exchange rate under fully flexible domestic prices and a floating exchange rate the model is similar in structure to an ealier paper by calvo and rodriguez the main difference being that in our model consumers have an infinite planning horizon and long run perfect foresight one of the main findings is that an increase in the rate of monetary expansion has the impact effect of creating a real appreciation of the exchange rate and a deterioration of the balance of payments contrary to the results of calvo and rodriguez

government expenditure and equilibrium real exchange rates abstract government expenditures financed by lump sum taxes influence real exchange rates potentially via a resource withdrawal channel and a consumption tilting channel recent theoretical and empirical studies have considered only the effects of government spending through the resource withdrawal channel we solve for the theoretical relationships among the real exchange rate relative private consumption relative government consumption and tradables and nontradables production in a two country general equilibrium model and then estimate the model s structural equations the results suggest that government expenditures influence real exchange rates approximately equally via the resource withdrawal and consumption tilting channels and that government and private consumption are complements in utility

adjustment costs in investment time preferences and the current account abstract this paper studies the effects of supply and demand shocks on the optimal investment and savings decisions of economic agents in a small open economy the two building blocks of the setup are adjustment costs in investment and a recursive time preference structure it is shown that the model can mimic certain stylized facts

government expenditure real exchange rate and the decline of the manufacturing sector some empirical evidence abstract i show that the increase in government expenditure in european countries during the 1970s raise the relative price of non traded goods this relative price movement may explain why the share of manufacturing in private sector value added declined in those countries

real interest rates home goods and optimal external borrowing the paper investigates the optimal time path of consumption and external borrowing in the dependent economy model the small country faces given world prices and a given world real interest rate the presence of a home goods sector implies that the relevant real interest rate appropriate to consumption decisions depends on the rate of change of the real price of home goods the paper shows how transitory disturbances in output or in the world real interest rate affect the time profile of consumption and the trade balance in particular it is shown that the presence of a home goods sector dampens the consumption effects of changes in the world interest rate

capital controls policy an intertemporal perspective abstract this paper studies capital controls policy from an intertemporal perspective using a small open economy model with optimizing agents it derives a policy rule which conforms real world stylized facts and is sustainable in the long run in particular it explicitly models the constraints on the policy rule implied by the dynamics of the economy studying several prevalent policy experiments it is demonstrated that significant real effects are generated by the interaction between controls policy and traditional policy tools this happens as controls affect agents intratemporal asset allocation and intertemporal consumption patterns the use of controls enlarges the set of possible outcomes generating some non traditional results the analysis points to new tradeoffs and hence new dilemmas faced by a government that uses controls

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