monetary policy in open economies practical perspectives for pragmatic central bankers this paper reviews and interprets some of the key policy implications that flow from a class of dsge models for optimal monetary policy in the open economy the framework suggests that good macroeconomic outcomes in open economies are possible by focusing inflation targeting that is implemented by a taylor type rule a rule that in equilibrium is reflected in the exchange rate as an asset price optimal monetary policy will not be able deliver a stationary stable nominal exchange rate let alone a fixed exchange rate or one that remains inside a target zone because absent a commitment device optimal monetary can t deliver a stationary domestic price level another feature in the data for inflation targeting countries that is consistent with monetary policy via taylor type rule is that it will tend push the nominal exchange rate in the opposite direction from ppp in response to an inflation shock the bad news god news result of clarida and waldman 2008 is bad news about inflation good news for the exchange rate in john campbell ed asset prices and monetary policy chicago university of chicago press clarida and waldman 2014 bad news about inflation is good news for the nominal exchange rate under optimal monetary policy dsge theory and a decade of empirical evidence this is so even though in the long run of these models the nominal exchange rate must in expectation obey ppp

consumer search incomplete exchange rate pass through and optimal interest rate policy this paper studies utility maximizing monetary policy in a two country economy with consumer search frictions search frictions provide a microfoundation for incomplete exchange rate pass through and international deviations from the law of one price lop i show that optimal interest rate policy targets deviations from the lop and acts to mitigate the effect of search frictions in a quantitative setting with internationally correlated technology and preference shocks optimal policy generates positive cross country correlation of nominal interest rates

the quantitative analytics of the basic neomonetarist model this paper constructs a dynamic macroeconomic model with less than perfect price flexibility which has a classical side consistent with real business cycle theory augmented by investment adjustment costs increasing returns to scale and a new flexible formalization of imperfect competition something akin to the classical dichotomy is justified by a mode of approximation appropriate for a model in which one state variable adjusts quickly while another state variable adjusts slowly even with investment adjustment costs monetary expansions are found to raise the real interest rate the determinants of real rigidity and the macroeconomic rate of price adjustment are investigated copyright 1995 by ohio state university press

conservative central banks and nominal growth exchange rate and inflation targets a framework is developed in which inflation biases with different target variables are compared a nominal growth target measured in consumer prices may yield less stabilization bias than a nominal income growth target exchange rate and inflation targets result in less stabilization bias than an income growth target the more important the terms of trade stabilization persistence in output causes excessive stabilization of productivity shocks and of shocks to the terms of trade under discretion an inflation weight conservative central bank is more likely under an inflation target than under an exchange rate target and less likely under a nominal income growth target

openness and optimal monetary policy abstract we show that the composition of international trade has important implications for the optimal volatility of the exchange rate above and beyond the size of trade flows using an analytically tractable small open economy model we characterize the impact of the trade composition on the policy trade off and on the role played by the exchange rate in correcting for price misalignments contrary to models where openness can be summarized by the degree of home bias we find that openness can be a poor proxy of the welfare impact of alternative monetary policies using input output data for 25 countries we document substantial differences in the import and non tradable content of final demand components and in the role played by imported inputs in domestic production the estimates are used in a richer small open economy dsge model to quantify the loss from an exchange rate peg relative to the ramsey policy conditional on the composition of imports we find that the main determinant of the losses is the share of non traded goods in final demand

macroeconomic policy transmission and international interdependence a svar application to brazil and us economic policy transmission between trade partners has been analyzed over different contexts in the literature depending on real or nominal frictions the results indicate possible beggar thy neighbor effects for policies given international trade and need for coordinating policies the baseline model is corsetti and pesenti 2001 of macroeconomic interdependence the theoretical proposition suggests that a no anticipated economic policy of exchange rate depreciation creates a beggar thyself effect yet many economies have engaged in this policy to enhance exports and improve welfare here fiscal policy transmissions over brazilian economic aggregates are investigated considering brazil as home and us as foreign country the problem is specified in a structural var vector autoregression model taking granger causality tests and impulse response analysis as econometric applications the results indicate that expansionary fiscal policy in us has a beggar thy neighbor effect for the brazilian economy in the long run the policy transmission mechanism relies on the terms of trade in addition real money balances are affected by foreign fiscal policy affecting the efficiency of domestic monetary policy 2013 national association of postgraduate centers in economics anpec production and hosting by elsevier b v all rights reserved jel classification f41 f42

expenditure switching vs real exchange rate stabilization competing objectives for exchange rate policy this paper develops a view of exchange rate policy as a trade off between the desire to smooth fluctuations in real exchange rates so as to reduce distortions in consumption allocations and the need to allow flexibility in the nominal exchange rate so as to facilitate terms of trade adjustment we show that optimal nominal exchange rate volatility will reflect these competing objectives the key determinants of how much the exchange rate should respond to shocks will depend on the extent and source of price stickiness the elasticity of substitution between home and foreign goods and the amount of home bias in production quantitatively we find the optimal exchange rate volatility should be significantly less than would be inferred based solely on terms of trade considerations moreover we find that the relationship between price stickiness and optimal exchange rate volatility may be non monotonic

the extensive margin and monetary policy abstract the creation of new firms referred to as the extensive margin is a significant but overlooked dimension of monetary policy a monetary var documents that monetary policy has significant effects on firm creation an analytically tractable model combining sticky prices and firm entry shows that entry alters the transmission of monetary policy innovations acting much like a type of investment in more standard models monetary policy rules that offset the uncertainty of productivity shocks can raise the mean level of entry and thereby welfare suggesting a new motivation for stabilization policy

commodity trade and international risk sharing how much do financial markets matter abstract this paper evaluates the social gains from international risk sharing in some simple general equilibrium models with output uncertainty a simulation model calibrated to selected moments of u s and japanese data estimates the incremental loss from a ban on international portfolio diversification to be on the order of 0 20 percent of output per year even the theoretical gains from asset trade may disappear under alternative sets of assumptions on preferences and technology the paper argues that the small magnitude of potential trade gains may help explain the apparently inconsistent findings of empirical studies on the degree of international capital mobility

currency areas and voluntary transfers this paper discusses the relationship between the formation of a currency area and the use of voluntary fiscal transfers between countries we show that there is a trade off between the benefits of flexible exchange rates and the additional risk sharing benefits of voluntary transfers that can be sustained in a currency area we show that whether a currency area is beneficial or not will depend on the magnitude of economic parameter values in particular we show that in a simple two country model and for a plausible set of economic parameter values a currency area is optimal

macroeconomic interdependence under incomplete markets this paper uses a two country flexible price model with overlapping generations of infinitely lived households to study the role of net foreign asset dynamics in the propagation of productivity shocks absence of ricardian equivalence ensures existence of a unique steady state level of net foreign assets to which the economy returns following temporary shocks model dynamics are significantly different from those of a setup in which terms of trade movements perform all the international adjustment and net foreign assets do not move the difference relative to a complete markets economy in which net foreign asset movements play no role in shock transmission is smaller it is amplified if the substitutability across goods rises and if shocks are permanent

a welfare based analysis of international monetary policy spillovers at the zero lower bound we study the welfare effects of international monetary policy spillovers at the zero lower bound focusing on the effects of forward guidance in a large economy foreign on its smaller trading partner home in scenarios motivated by the global financial crisis we find that foreign forward guidance has an overall prosper thy neighbor effect on the home economy as long as it increases foreign welfare this finding holds under alternative assumptions about exchange rate pass through or the degree of international financial integration however foreign forward guidance may worsen the trade off between the stabilization objectives of home monetary policy

openness imperfect exchange rate pass through and monetary policy abstract this paper analyses the implications of imperfect exchange rate pass through for optimal monetary policy in a linearised open economy dynamic general equilibrium model calibrated to euro area data imperfect exchange rate pass through is modelled by assuming sticky import price behaviour the degree of domestic and import price stickiness is estimated by reproducing the empirical identified impulse response of a monetary policy and exchange rate shock conditional on the response of output net trade and the exchange rate it is shown that a central bank that wants to minimise the resource costs of staggered price setting will aim at minimising a weighted average of domestic and import price inflation

new directions for stochastic open economy models the paper develops a simple stochastic new open economy macroeconomic model based on sticky nominal wages explicit solution of the wage setting problem under uncertainty allows one to analyze the effects of the monetary regime on welfare expected output and the expected terms of trade despite the potential interplay between imperfections due to sticky wages and monopoly the optimal monetary policy rule has a closed form solution to motivate our model we show that observed correlations between terms of trade and exchange rates are more consistent with our traditional assumptions about nominal rigidities than with a popular alternative based on local currency pricing 2000 elsevier science b v all rights reserved

financial transaction taxes market composition and liquidity we use the introduction of a financial transaction tax ftt in france in 2012 to test competing theories on its impact we find no support for the idea that an ftt improves market quality by affecting the composition of trading volume instead our results are in line with the hypothesis that a lower trading volume reduces liquidity and in turn market quality consistent with theories of asset pricing under transaction costs we document a shift in security holdings from short term to long term investors finally we find that moderate aggregate effects on market quality can mask large adjustments made by individual agents

the role of consumption substitutability in the international transmission of monetary shocks abstract this paper develops a general framework to analyze the impact of monetary shocks in an open economy focusing on the role of the degree of substitutability between goods produced in different countries we extend the contributions by obstfeld and rogoff obstfeld m rogoff k 1995 exchange rate dynamics redux journal of political economy 103 624 659 and corsetti and pesenti corsetti g pesenti p 1997 welfare and macroeconomic interdependence nber working paper 6307 to show that the welfare impact differs across countries when the degree of substitutability between goods produced in different countries is different from the degree of substitutability between goods produced in the same country a shock that would be beneficial in a closed economy can have an adverse beggar thyself effect in the country where it takes place or an adverse beggar thy neighbor effect on its neighbor

do trade costs in goods market lead to home bias in equities abstract two of the main puzzles in international economics are the consumption and the portfolio home biases we solve for international equity portfolios in a two country two good stochastic equilibrium model with trade costs in goods markets we show that introducing trade costs as suggested by obstfeld and rogoff obstfeld m rogoff k 2000a the six major puzzles in international macroeconomics is there a common cause nber macroeconomics annual 15 is not sufficient to explain these two puzzles simultaneously on the contrary we find that trade costs create a foreign bias in portfolios for reasonable parameter values this result is robust to the addition of non tradable goods for standard calibrations of the preferences

international spillover effects and monetary policy activism this paper examines how the preferences of a large economy s central bank affect the trade off between output and inflation volatility faced by the central bank of a small open economy by analyzing the impact of a global cost push shock we demonstrate that under the assumption of producer currency pricing the trade off faced by the small open economy is likely to worsen as the foreign central bank becomes more focused on output stabilization relative to inflation stabilization but the opposite is true in the case of local currency pricing

international interdependencies in fiscal stabilization policies abstract trade links imply that business cycle fluctuations are transmitted among trade partners to the extent that fiscal policy can mitigate business cycle fluctuations international interdependencies in stabilization policies arise we analyse in a two country general equilibrium model the role of fiscal policy in mitigating risk or providing implicit insurance in the presence of capital market imperfections and adjustment failures rigid wages it is shown that there is a welfare case for an active stabilization policy and that it is larger in the presence of adjustment failures rigid wages non cooperative policy decisions imply inefficiencies in fiscal stabilization policies which in the case of flexible wages may imply too much stabilization whereas stabilization is always insufficient in the case of rigid wages

large labour unions and terms of trade externality this paper shows that large labour unions reduce the incentive for uncoordinated monetary policies to improve the terms of trade this finding implies that concentrated labour markets significantly affect the optimal policy prescription in an open economy

does globalisation discipline monetary policymakers abstract this paper analyses globalisation using a small general equilibrium model it concludes that whether increased openness a reduction in the costs of international trade helps to discipline monetary policy in large open economies depends on the type of trade costs moreover to the extent that globalisation induces stronger competition in the goods market this may also have an adverse effect on monetary policy discipline the latter is due to international expenditure switching which becomes a more forceful channel as competition intensifies thus the answer to the question in the title is not necessarily affirmative

global implications of self oriented national monetary rules author s obstfeld maurice rogoff kenneth abstract it is well known that if international linkages are relatively small the potential gains to international monetary policy coordination are typically quite limited but what if goods and financial markets are tightly linked is it then problematic if countries unilaterally design their institutions for monetary stabilization are the stabilization gains from having separate currencies largely squandered in the absence of effective international monetary coordination we argue that under plausible assumptions the answer is no unless risk aversion is very high lack of coordination in rule setting is a second order problem compared to the overall gains from monetary policy stabilization

exchange rate policy and endogenous price flexibility most theoretical analysis of exible vs flxed exchange rates takes the degree of nominal rigidity to be independent of the exchange rate regime choice itself but informal policy discussion often suggests that a credible exchange rate peg may increase internal price exibility this paper explores the relationship between exchange rate policy and price exibility in a model where price exibility itself is an endogenous choice of proflt maximizing flrms a flxed exchange rate can afiect the optimal degree of price exibility by altering the volatility of nominal demand facing price setting flrms we flnd that a unilateral peg such as a currency board adopted by a single country will increase internal price exibility perhaps by a large amount on the other hand when an exchange rate peg is supported by bilateral participation of all monetary authorities such as in a monetary union price exibility may actually be less than under freely oating exchange rates quantitatively we flnd that the endogenous increase in price exibility following a unilateral peg might be big enough that output volatility is no greater than it would be under a oating exchange rate regime

on the benefits of a monetary union does it pay to be bigger this paper revisits the question of the appropriate domain of a currency area using a new keynesian open economy model in which the world is split into two areas each framed as a continuum of small open regions we show that the adoption of a common currency like the euro can be beneficial for the members of the monetary union since the spill over effects generated by the inflationary policies of the small open economies are likely to outweigh the costs of not tailoring monetary policy to country specific shocks we also show that while the enlargement of the monetary union to another group of small open economies can bring about welfare gains for all countries involved monetary integration of two large economies such as the euro area and the u s will not these findings can help to rationalize the process of the creation and enlargement of multi country currency areas like the eurozone

monetary policy for an open economy an alternative framework with optimizing agents and sticky prices the new open economy macroeconomics seeks to provide an improved basis for monetary and exchange rate policy through the construction of open economy models that feature rational expectations optimizing agents and slowly adjusting prices of goods this paper promotes an alternative approach for constructing such models by treating imports not as finished consumer goods but rather as raw material inputs to the home economy s productive process this treatment leads to a clean and simple theoretical structure that has some empirical attractions as well a particular small economy model is calibrated and its properties exhibited primarily by means of impulse response functions the preferred variant is shown to feature a pattern of correlations between exchange rate changes and inflation that is more realistic than provided by a more standard specification important recent events are interpreted in light of the alternative models

a real options perspective on the future of the euro abstract a break up of the eurozone is no longer regarded as implausible this will be a costly and irreversible decision in conditions of continuing uncertainty therefore it is amenable to analysis in the real options framework we do so by solving as an n dimensional optimal stopping problem with country specific shocks and convergence of member economies we compare a complete break up with individual country departures in calibrated solutions for a symmetric case we find a non negligible but small option value furthermore we find a new theoretical result on the non monotonicity of abandonment threshold with respect to volatility

terms of trade and exchange rate regimes in developing countries abstract since friedman essays in positive economics university of chicago press chicago 1953 157 203 an advantage often attributed to flexible exchange rate regimes over fixed regimes is their ability to insulate more effectively the economy against real shocks i use a post bretton woods sample 1973 96 of 75 developing countries to assess whether the responses of real gdp real exchange rates and prices to terms of trade shocks differ systematically across exchange rate regimes i find that responses are significantly different across regimes in a way that supports friedman s hypothesis the paper also examines the importance of terms of trade shocks in explaining the overall variance of output and prices in developing countries

inflation targeting and exchange rate pass through this paper analyzes how endogenous imperfect exchange rate pass through affects inflation targeting optimal monetary policies in a new keynesian small open economy the paper shows that an inverse relation exists between the pass through and the insulation of the economy from foreign and monetary policy shocks and that imperfect pass through tends to decrease the variability of the terms of trade furthermore with cpi inflation targeting in the short run delayed pass through constrains monetary policy more than incomplete pass through and interest rate smoothing amplifies this effect when the pass through decreases the variability in economic activity tends to rise and the trade off between the stabilization of cpi inflation and output worsens in direct relation to how strictly the central bank is targeting cpi inflation in contrast with domestic inflation targeting optimal monetary policy is not constrained and opposite results occur consequently imperfect pass through favors the choice of domestic to cpi inflation targeting

exchange rate determination the role of factor price rigidities and nontradeables this paper introduces factor labor markets into the intertemporal monetary model of obstfeld and rogoff and combines this richer market structure with a new utility independent representation of nontradeables this allows us to explore the international monetary transmission mechanism for factor price wage rigidities under different degrees of macroeconomic openness factor price rigidities imply similar properties for the international transmission mechanism as domestic producer price rigidities nontradeables give raise to interesting new effects under asymmetric monetary shocks they create short run ppp deviations increase exchange rate volatility relative to price level volatility and reduce positive consumption and negative output comovements 2000 elsevier science b v all rights reserved

trade policy home market effect versus terms of trade externality we study trade policy in a two sector krugman 1980 trade model allowing for wage import and export subsidies taxes we study non cooperative trade policies first for each individual instrument and then for the situation where all instruments can be set simultaneously and contrast those with the efficient allocation we show that in this general context there are four motives for non cooperative trade policies the correction of monopolistic distortions the terms of trade manipulation the delocation motive for protection home market effect the fiscal burden shifting motive the nash equilibrium when all instruments are available is characterized by first best level wage subsidies and inefficient import subsidies and export taxes which aim at relocating firms to the other economy and improving terms of trade thus the dominating incentives for non cooperative trade policies are the fiscal burden shifting motives and terms of trade effects

welfare and macroeconomic interdependence we develop a baseline model of monetary and fiscal transmission in interdependent economies the welfare effects of expansionary policies are related to monopolistic supply in production and monopoly power of a country in trade an unanticipated exchange rate depreciation can be beggar thyself rather than beggar thy neighbor as gains in domestic output are offset by deteriorating terms of trade smaller and more open economies are more prone to suffer from inflationary shocks larger economies benefit from moderate demand led expansions but may be worse off if policy makers attempt to close the output gap fiscal shocks are generally beggar thy neighbor in the long run in the short run they raise domestic demand at given terms of trade thus reducing the welfare benefits from monetary expansions analytical tractability makes our model uniquely suitable as a starting point to approach the recent new open economy macroeconomic literature

fiscal consolidation under fixed exchange rates abstract we present the fixed exchange rate version of the obstfeld and rogoff model and analyze the international transmission of fiscal policy shocks the welfare effects of an unanticipated contraction in government expenditure in the home country are shown to depend crucially on the way in which world money stock is set if home authorities alone are responsible for pegging the exchange rate a fiscal adjustment leads to a decrease in the real interest rate stimulates private consumption and limits the contraction in world output compared with a situation in which a cooperative scheme is implemented the model is then used to propose a new interpretation of recent events in the eu countries that have enacted restrictive fiscal policies while pegging their currencies to the dm

the macroeconomic effects of monetary and fiscal policy in a small open economy does the exchange rate regime matter abstract this paper develops a small open economy model in the spirit of obstfeld and rogoff 1995 the introduction of endogenous traded sector output unlocks current account and real exchange rate effects within this framework where specific consideration is given to the case with fixed but adjustable parities exchange rate devaluation generates similar qualitative effects as a money supply expansion under floating rates output and external effects of government spending shocks are broadly consistent with the adjusted basic non micro founded mundell and fleming mf framework but differ in significant ways from the baseline mf model contrary to the textbook mf model a government expenditure shock depreciates the nominal exchange rate and generates real effects under the fixed rate system

fiscal policy the real exchange rate and traded goods we estimate the effects of government spending shocks on the cpi real exchange rate the trade balance and their co movements with gdp and private consumption we decompose the variations of the cpi real exchange rate into variations of the traded goods real exchange rate and the relative price of traded to non traded goods we reach three main conclusions a rise in government spending induces a depreciation of the cpi real exchange rate and a trade balance deficit private consumption rises in response to a government spending shock and therefore co moves positively with the real exchange rate both components of the cpi real exchange depreciate we employ vector auto regression var techniques to estimate the effects of fiscal policy and in particular government spending on the cpi real exchange rate and the trade balance in the us and three other oecd countries our empirical analysis delivers two key results first a rise in government spending tends to induce a real exchange rate depreciation and a trade balance deficit although especially in the us the latter effect tends to be small second in all countries private consumption rises in response to a government spending shock and therefore co moves positively with the real exchange rate two important implications follow from these results our evidence provides support for a traditional twin deficit hypothesis in stark contrast with a recent study by kim and roubini 2008 a second implication concerns the consistency of facts and theory both the response of the real exchange rate and its co movement with private consumption and the trade balance are at odds with a benchmark general equilibrium open economy model featuring complete financial markets in fact while the model is successful in replicating the negative response of the trade balance to a government spending shock that we observe in the data and also in linking the magnitude of that response to the degree of openness it has counterfactual predictions on the response of the real exchange rate and of private consumption we argue that the key failure of the model lies in the equilibrium behaviour of private consumption in the model as a result of a typical wealth effect on labour supply private consumption falls in response to a rise in government spending whereas the opposite is true in the data this in turn explains the behaviour of the real exchange rate in the reference model with complete asset markets a risk sharing arbitrage condition ties the ratio of the marginal utilities of consumption across countries to the real exchange rate via this condition and provided that deviations from purchasing power parity are feasible the fall in consumption is accompanied by an equilibrium appreciation of the real exchange rate we proceed by investigating further the sources of the cpi real exchange rate movements in the data a traditional approach decomposes the real exchange rate into two terms

liquidity traps capital flows abstract motivated by debates surrounding international capital flows during the great recession we conduct a positive and normative analysis of capital flows when a region of the global economy experiences a liquidity trap capital flows reduce inefficient output fluctuations in this region by inducing exchange rate movements that reallocate expenditure towards the goods it produces restricting capital mobility hampers such an adjustment from a global perspective constrained efficiency entails subsidizing capital flows to address an aggregate demand externality associated with exchange rate movements absent cooperation however dynamic terms of trade manipulation motives drive countries to inefficiently restrict capital flows impeding aggregate demand stabilization

strategic monetary policy in interdependent economies gains from coordination reconsidered abstract there is a wide acceptance that gains to international monetary policy coordination are small at best and that the need of policy coordination is questionable this conclusion however follows from the underlying presumption that monetary policy is concerned with the stabilization of macroeconomic fluctuations only this paper presents a general short run monetary policy analysis within a familiar two country new open economy macroeconomics noem framework where national monetary policy involves the choice of a deterministic growth trend of money supply average inflation rate and stochastic state dependent deviations of actual money supply from the deterministic trend stabilization strategic beggar thy neighbor considerations induce the deviation of both policy choices from their socially optimal values the gains from international coordination of the average inflation rate are of first order and hence larger than the gains from the coordination of the stabilization policies which are of second order

monopolistic competition and the effects of aggregate demand how important is monopolistic competition to an understanding of the effects of aggregate demand on output we ask the question at three levels can monopolistic competition by itself explain why aggregate demand movements affect output can it together with other imperfections generate effects of aggregate demand in a way that perfect competition cannot if so can it give an accurate account of the response of the economy to aggregate demand movements the answers are no yes and yes

competitive devaluations toward a welfare based approach abstract this paper revisits the international transmission of exchange rate shocks in a multicountry economy providing a choice theoretic framework for the policy analysis of competitive devaluations as opposed to the traditional view a devaluation by one country does not necessarily have an adverse beggar thy neighbor effect on its trading partners because they can benefit from an improvement in their terms of trade furthermore a retaliatory devaluation need not be the optimal strategy for the neighbor countries as the induced terms of trade deterioration can be large enough to offset the gains from defending their export market share the concern over competitive devaluations reflected in the fund s charter and the system wide implications of changes in exchange rates still motivate fund policy recommendations a major fund concern in the asian crisis has been the fear that asian currencies would become so undervalued and current account surpluses so large as to damage the economies of other countries developing countries included this is one reason the fund has stressed the need first to stabilize and then to strengthen exchange rates in the asian countries now in crisis and for this purpose not to cut interest rates until the currency stabilizes and begins to appreciate

to be or not to be in monetary union a synthesis article i nfo monetary union can benefit countries suffering from policy credibility problems if it eliminates the inflation bias and also allows for more efficient management of certain shocks but it also carries costs as some stabilization may be feasible even in the absence of credibility and this may be more than what an individual country can hope for in a monetary union in this paper we combine the stabilization and credibility branches of the currency union literature and construct a simple welfare criterion that can be used to evaluate alternative monetary arrangements we produce examples where monetary union may be welfare improving even for low modest levels of inflation bias 2 3 as long as business cycles are not too a synchronized across countries

asymmetries in an open economy model abstract this paper revisits interdependence in a noem framework introducing two asymmetries in a two country general equilibrium model of the world economy with imperfect competition and nominal rigidities a world with asymmetric nominal rigidities where one country has flexible prices and the other sticky prices and a world with asymmetric behavior from monetary policymakers where one country non optimally sets a constant nominal exchange rate we show that the welfare loss is not dependent on the variance of the productivity shock in the first asymmetric world as regards the second asymmetry we show that welfare gains arise under discretionary policy if the shock is higher than expected by agents at the cost of a welfare loss to the other country whereas under monetary policy with rules a welfare loss happens in both countries we also call into question the zero lower bound constraint in an open economy endorsing expectations of price increases as an escape from a liquidity trap

the new open economy macroeconomics a survey since the 1995 publication of obsteld and rogoff s redux model there has been an outpouring of research on open economy dynamic general equilibrium models that incorporate imperfect competition and nominal rigidities this paper offers an interim survey of this recent literature 2001 elsevier science b v all rights reserved

incomplete pass through and the welfare effects of exchange rate variability abstract this paper considers the implications of incomplete exchange rate pass through for optimal monetary and exchange rate policy a two country model is presented which allows an explicit derivation of welfare functions in terms of a weighted sum of the second moments of producer prices and the nominal exchange rate from a single country perspective the optimal exchange rate variance depends on the degree of pass through the size and openness of the economy the elasticity of labour supply and the volatility of foreign producer prices welfare may be decreasing or increasing in the volatility of the exchange rate

habit formation adjustment costs and international transmission of fiscal policy abstract the paper studies the effects of fiscal policy in an integrated world economy the setup is one with habit forming endogenous rates of time preference and adjustment costs in investment most of the predictions of the model are in line with the recent empirical literature on fiscal policy for instance in response to a balanced fiscal expansion we obtain positive long run output multipliers long run increases in employment short and medium run increases in wages and decreases in investment our results suggest that short run government spending multipliers are smaller than tax multipliers most importantly we show that the model can generate positive short and medium run consumption responses to a positive fiscal shock this is relevant as negative consumption responses are considered to be one of the main challenges facing neo classical models of fiscal policy

travel configuration on consumer trip chained store choice we predict that in evaluating alternative equidistant trip chains i e the combining of multiple destinations into a single outing consumers will choose trip chains where destinations are more clustered i e closer to each other and further from the origin over equidistant trip chains where destinations are less clustered but closer to the origin this prediction is based on the assumptions of diminishing marginal sensitivity and reference point dependence postulated by reference dependent theory results of the first experiment provide support for this prediction results of the second experiment provide evidence that trip chain configuration affects route choice via both facets of reference dependent theory

openness government size and the terms of trade this paper investigates the relationship between trade openness and the size ofngovernments both theoretically and empirically we argue that openness can increase the size of governments through two channels 1 a terms of trade externality whereby trade lowers the domestic cost of taxation and 2 the demand for insurance whereby trade raises risk and public transfers we provide a unified framework for studying and testing these two mechanisms our main theoretical prediction is that the relative strength of the two explanations depends on a key parameter namely the elasticity of substitution between domestic and foreign goods moreover while the first mechanism is inefficient from the standpoint of world welfare the second is instead optimal in the empirical part of the paper we provide new evidence on the positive association between openness and government size and we explore its determinants consistently with the terms of trade externality channel we show that the correlation is contingent on a low elasticity of substitution between domestic and foreign goods our findings raise warnings that globalization may have led to inefficiently large governments

does exchange rate stability increase trade and welfare we develop a simple general equilibrium framework to study the effect of the exchange rate system on trade and welfare an important feature of the model is deviations from purchasing power parity caused by rigid price setting in buyers currency we find the following first exchange rate stability is not necessarily associated with more trade in a simple benchmark model with separable preferences and only monetary shocks trade is unaffected by the exchange rate system consistent with most evidence second both trade and welfare can be higher under either exchange rate system depending on preferences and on the monetary policy rules followed under each system finally in general there is no one to one relationship between the levels of trade and welfare across exchange rate systems

excess capacity monopolistic competition and international transmission of monetary disturbances analyzes the excess capacity monopolistic competition and international transmission of monetary policy disturbances in the united states sheds light on the international impact of monetary policy emphasis on the spillover effects of monetary disturbances similarity of framework used with open economy macroeconomics

monetary rules for small open emerging economies abstract this paper develops a variant of the imf s global economic model suitable to analyze macroeconomic dynamics in open economies and uses it to assess the effectiveness of taylor rules and inflation forecast based ifb rules in stabilizing variability in output and inflation our findings suggest that a simple ifb rule that does not rely upon any direct estimates of the equilibrium real interest rate and places a relatively high weight on the inflation forecast may perform better in small open economies than conventional taylor rules

common currencies vs monetary independence we study the optimal monetary policy in a two country open economy model under two monetary arrangements a multiple currencies controlled by independent policy makers b common currencies with a centralized policy maker our findings suggest that i monetary policy competition leads to higher long term inflation and interest rates with large welfare losses ii the inflation bias and the consequent losses are larger when countries are unable to commit to future policies iii the welfare losses from higher long term inflation dominates the welfare costs of losing the ability to react optimally to shocks

classifying monetary economics fields and methods from past to future we propose a simple yet sufficiently encompassing classification scheme of monetary economics it comprises three fundamental fields and six recent areas that expand within and across these fields the elements of our scheme are not found together and in their mutual relationships in earlier studies of the relevant literature neither is this an attempt to produce a relatively complete systematization our intention in taking stock is not finality or exhaustiveness we rather suggest a viewpoint and a possible ordering of the accumulating knowledge our hope is to stimulate an improved understanding of the evolving nature and internal consistency of monetary economics at large

policy instrument choice and non coordinated monetary policy in interdependent economies abstract non coordinated monetary policy is analyzed in a stochastic two country general equilibrium model non coordinated equilibria are compared in two cases one where policy is set in terms of state contingent money supply rules and one where policy is set in terms of state contingent nominal interest rate rules in general the non coordinated equilibrium differs between the two types of policy rule but a number of special cases are identified where the equilibria are identical the endogenous choice of policy instrument is analyzed and the nash equilibrium in the choice of policy instrument is shown to depend on the interest elasticity of money demand

inflation in open economies abstract this paper relates the time consistent inflation rate to the degree of trade openness of an economy the mechanism linking the welfare effects of monetary surprises and hence the incentives to inflate to openness does not rely on a large country terms of trade effect but rather is due to imperfect competition and nominal price rigidity in the non traded sector the empirical evidence supports the main predictions of the model 1997 elsevier science b v

step away from the zero lower bound small open economies in a world of secular stagnation abstract we study how small open economies can escape from deflation and unemployment in a situation where the world economy is permanently depressed building on the framework of eggertsson et al 2016 we show that the transition to full employment and at target inflation requires real and nominal depreciation of the exchange rate however because of adverse income and valuation effects from real depreciation the escape has a beggar thy self effect that may end up lowering welfare while eliminating underemployment we show that as long as the economy remains financially open domestic asset supply policies or reducing the effective lower bound on policy rates may be ineffective or even counterproductive however closing domestic capital markets does not necessarily enhance the monetary authorities ability to rescue the economy from stagnation

foreign labor costs and domestic employment what are the spillovers abstract this paper studies the international spillover effects of country specific labor cost changes in the presence of labor market frictions a two country model with search frictions predicts that a cut in foreign labor costs leads to an increase in domestic employment driven by a positive terms of trade effect on job creation i find empirical evidence in support of this positive spillover effect the terms of trade channel and the dependence on the degree of labor market rigidity this is done by a panel regression that estimates the effect of exogenous variation in foreign unit labor costs instrumented by changes in foreign statutory social security contribution rates on domestic employment and output

twin deficits squaring theory evidence and common sense in this paper we reconsider the twin deficit hypothesis that fiscal shocks generating budget deficits also worsen external trade both from a theoretical point of view and by analyzing data for australia canada the uk and the us first we assess the joint dynamics of budget and trade deficits along the business cycle uncovering a strikingly recurrent s shaped relation between the two the correlation is actually negative suggesting twin divergence this observation however cannot rule out the possibility that government spending expansions and or tax cuts may cause trade deficits as the overall correlation is likely to be dominated by cyclical factors second we reconsider the transmission of government spending in a standard two country two good model we find that openness and the persistence of fiscal shocks are major determinants of the magnitude or even sign of the response of the trade balance to fiscal shocks for a given persistence of the fiscal shock the closer an economy the larger the crowding out effect on investment the lower the deterioration of the trade balance third we take this insight to the data investigating the transmission of fiscal shocks in a var framework in the four countries in our sample our empirical findings tend to support our view in the us and australia which are relatively less open than canada and the uk and where government spending shocks are less persistent we find that the external impact of fiscal policy is rather limited instead private investment responds substantially the reverse is true for canada and the uk these findings confirm and put into perspective earlier results whereas fiscal expansions in the us are found to have on average a negligible effect on the country s trade balance however we emphasize that these results are consistent with a call for a us fiscal retrenchment to address global imbalances the impact of budget cuts on the us external trade is muted by their positive effect on domestic investment strengthening the us ability to generate resources against future interest and debt repayment