Business Cycle Synchronization in the Proposed East African Monetary Union: An Unobserved Component Approach

This paper uses the business cycle synchronization criteria of the theory of optimum currency area (OCA) to examine the feasibility of the East African Community (EAC) as a monetary union. We also investigate whether the degree of business cycle synchronization has increased after the 1999 EAC Treaty. We use an unobserved component model to measure business cycle synchronization as the proportion of structural shocks that are common across different countries, and a time‐varying parameter model to examine the dynamics of synchronization over time. We find that although the degree of synchronization has increased since 2000 when the EAC Treaty came into force, the proportion of shocks that is common across different countries is still small implying weak synchronization. This evidence casts doubt on the feasibility of a monetary union for the EAC as scheduled by 2012.     

HOW DO FISCAL CONSOLIDATION AND FISCAL STIMULI IMPACT ON THE SYNCHRONIZATION OF BUSINESS CYCLES?

Using quarterly data for a panel of advanced economies, we show that synchronized fiscal consolidation (stimulus) programmes in different countries make their business cycles more closely linked. We also find: (i) some evidence of decoupling when an inflation targeting regime is unilaterally adopted; (ii) an increase in business cycle synchronization when countries fix their exchange rates and become members of a monetary union; (iii) a positive effect of bilateral trade on the synchronization of business cycles. Global factors, such as a rise in global risk aversion and uncertainty and a reversal of nonstandard expansionary monetary policy, can also reduce the degree of co‐movement of business cycles across countries. From a policy perspective, our work shows that an inflation targeting regime coupled with simultaneous fiscal consolidations can lead to more business cycle synchronization.     

West African Currency Unions: Rationale and Sustainability

Drawing on the recent literature and experience of monetaryintegration in Europe, the paper examines the rationale forestablishing regional currency unions in western Africa. Despitedramatic economic, political and historical differences betweenthe two regions, the analysis indicates that monetary unificationmight well be beneficial for a number of the member states ofthe Economic Community of West African States (ECOWAS). Themain reason is that the costs stemming from the loss of monetaryautonomy are often more than offset by the gains originatingin the (partial) separation of monetary and fiscal powers. However,large countries with relatively ambitious public expenditureobjectives would not be attractive partners because they wouldbe expected to pressure the common central bank, creating excessiveinflation in the entire union. Hence, the desirability and sustainabilityof a currency union critically depends on fiscal disciplineamong its members. We also explore the vulnerability of regionalmonetary institutions to country-specific disturbances. Overall,the desirability of an ECOWAS monetary union requires a strongfiscal surveillance procedure both in the transition phase andafter the establishment of the union. (JEL E58, E61, F42)     

The endogeneity of the Optimum Currency Area criteria in East Asia

The Asian financial crisis in mid-1997 has increased interest in policies to achieve greater regional exchange rate stability in East Asia. It has renewed calls for greater monetary and exchange rate cooperation. A country's suitability to join a monetary union depends, inter alia, on the trade intensity and the business cycle synchronization with other potential members of the monetary union. However, these two Optimum Currency Area criteria are endogenous. Theoretically, the effect of increased trade integration (after the elimination of exchange fluctuations among the countries in the region) on the business cycle synchronization is ambiguous. Reduction in trade barriers can potentially increase industrial specialization by country and therefore resulting in more asymmetry business cycles from industry-specific shocks. On the other hand, increased trade integration may result in more highly correlated business cycles due to common demand shocks or intra-industry trade. If the second hypothesis is empirically verified, policy makers have little to worry about the region being unsynchronized in their business cycles as the business cycles will become more synchronized after the monetary union is formed. This paper assesses the dynamic relationships between trade, finance, specialization and business cycle synchronization for East Asian economies using a Generalized Method of Moments (GMM) approach. The dynamic panel approach improves on previous efforts to examine the business cycle correlations — trade link using panel procedures, which control for the potential endogeneity of all explanatory variables. Based on the findings on how trade, finance and sectoral specialization have effects on the size of common shocks among countries, potential policies that can help East Asian countries move closer toward a regional currency arrangement can be suggested. The empirical results of this study suggest that there exists scope for East Asia to form a monetary union.     

Business cycles synchronization in East Asian economy: Evidences from time-varying coherence study

This paper analyzes the feasibility of a monetary union in East Asia focusing on business cycles synchronization. Considering the critical role of trade integration in the East Asian integration process, we study whether East Asian countries are characterized by business cycle synchronization. The related empirical literature dedicated to business cycles synchronization in East Asia does not lead to firm conclusion. In this paper, we suggest a different empirical approach allowing, contrary to the previous studies, to detect endogenously structural changes in the comovement process between outputs. We apply a new measure based on the time-varying coherence function. Such a measure not only detects comovement dynamics but it distinguishes also this dynamics between short- and long-term. We compute also cohesion statistics to test if countries tend to be more synchronized or not. The main finding of this paper is that the increase in bilateral trade inside the East Asian region significantly improves long-run business cycle synchronization. The short-run influence of bilateral trade shows mixed results. Indeed, short-run cycles remain significantly influenced both by shocks hitting each country and by economic policy responses. As a consequence, more bilateral trade and convergence in economic policy constitute two complementary processes to promote business cycle synchronization.     

Trade and business cycle synchronization in OECD countries—A re-examination

This paper re-examines the relationship between trade intensity and business cycle synchronization for 21 OECD countries in the period 1970-2003. Instead of using instrumental variables, we estimate a multivariate model including variables capturing specialization and similarity of economic policies. We confirm that trade intensity affects synchronization, but the effect is much smaller than previously reported. Other factors, like specialization and convergence in monetary and fiscal policies, have a similar impact on business cycle synchronization as trade intensity. The effect of trade on synchronization is not driven by outliers. However, the impact of trade on synchronization is not robust across deciles.     

Business Cycle Comovement and Labor Market Institutions: An Empirical Investigation

This paper examines the empirical link between labor market institutions and international business cycle synchronization. Using a data panel of 20 OECD countries over the 1964–2003 period, we evaluate how cross‐country labor market heterogeneity affects business cycle comovement. Our estimation strategy controls for a large set of possible factors influencing cross‐country GDP correlation, which allows a comparison of our results with those found in previous studies. We find that bilateral trade, trade similarity, monetary and fiscal convergence, as well as EMU membership lead to more synchronized cycles. Our results show that labor market regulations affect the extent of business cycle synchronization. Disparities in employment protection laws and direct taxation tend to lower international comovement while divergence in union density, unemployment benefits, and indirect taxation enhance cross‐country correlations. The level of labor market regulations also matters. Heavier employment taxes are found to raise GDP comovement.     

Vertical Specialization and International Business Cycle Synchronization*

We explore the impact of vertical specialization—trade in goods across multiple stages of production—on the relationship between trade and business cycle synchronization across countries. We develop an international business cycle model in which the degree of vertical specialization varies with trade barriers. With perfect competition, we show analytically that fluctuations in measured total factor productivity are not linked across countries through trade. In numerical simulations, we find little dependence of business cycle synchronization on trade intensity. An extension of the model to allow for imperfect competition has the potential to resolve these shortcomings.     

Does integration and economic policy coordination promote business cycle synchronization in the EU?

Previous studies have discounted important factors and indirect channels that might contribute to business cycle synchronization (BCS) in the EU. We estimate the effects of market integration and economic policy coordination on bilateral business cycle correlations over the period 1995–2012 using a simultaneous equations model that takes into accounts both the endogenous relationships and unveils direct and indirect effects. The results suggest that (1) trade and FDI have a pronounced positive effect on BCS, particularly between incumbent and new EU members. (2) Rising specialization does not decouple business cycles. (3) The decline of income disparities in EU27 contributes to BCS, as converging countries develop stronger trade and FDI linkages. (4) There is strong evidence that poor fiscal discipline of EU members is a major impediment of business cycle synchronization. (5) The same argument holds true for exchange rate fluctuations that hinder BCS, particularly in EU15. Since BCS is a fundamental prerequisite and objective in an effective monetary union, the EU has to promote market integration and strengthen the common setting of economic policies.     

Business Cycle Synchronization in EU: A Time‐Varying Approach

This article investigates the time‐varying correlation between the EU12‐wide business cycle and the initial EU12 member‐countries based on Scalar‐BEKK and multivariate Riskmetrics model frameworks for the period 1980–2012. The paper provides evidence that changes in the business cycle synchronization correspond to major economic events that have taken place at a European level. In the main, business cycle synchronization until 2007 had moved in a direction positive for the operation of a single currency, suggesting that the common monetary policy was less costly in terms of lost flexibility at the national level. However, as a result of the Great Recession of 2007 and the subsequent Eurozone Crisis, a number of periphery countries, most notably Greece, have experienced desynchronization of their business cycles with the EU12‐wide cycle. Nevertheless, for most countries, any questions regarding the optimality and sustainability of the common currency area in Europe should not be attributed to a lack of cyclical synchronization.     

Monetary Union and Pegging in the Presence of Labor Unions*

As the European Economic and Monetary Union grows, power over monetary policy is shifting away from the original founders. Previously, researchers have analyzed the impact of replacing an exchange‐rate peg with a monetary union in the presence of labor unions. In these studies, the authors have consistently concluded that unemployment in the country that originally controlled monetary policy will rise, although they cite very different reasons. In this paper, we present a more general model that reproduces the previous results in special cases and clarifies the relations across the results. In addition, the more general model shows that the results are reversed in certain conditions.     

Is Asia Decoupling from the United States (Again)?

The recovery from the recent global financial crisis exhibited a decline in the synchronization of Asian output with the rest of the world. However, a simple model based on output gaps demonstrates that the decline in business cycle synchronization during the recovery from the global financial crisis was exceptionally steep by historical standards. We posit two potential reasons for this exceptionally steep decline. First, financial markets during this recovery improved from particularly distressed conditions relative to previous downturns. Second, monetary policy during the recovery from the crisis was constrained in developed economies by the zero bound, but less so in Asia. To test these potential explanations, we examine the implications of an increase in corporate bond spreads similar to that which took place during the recent European financial crisis in a three‐region open‐economy dynamic stochastic general equilibrium model. Our results confirm that global business cycle synchronization is reduced when zero‐bound constraints across the world differ. However, we find that the impact of reduced financial contagion actually goes modestly against our predictions.     

The optimality of a gulf currency union: Commonalities and idiosyncrasies

A high degree of shared national elements that drive the bulk of observed output volatility between countries is generally seen as a necessary prerequisite for the formation of a successful monetary union. This is because countries in a monetary union accept a one-size-fits all, resigning regions to policies that are based on some aggregate macroeconomic target rather than a country-specific one. For this reason, the cost of monetary union membership depends on the incidence of asymmetric (nation-specific) shocks rather than symmetric, or common shocks. This criteria is examined for the Gulf Cooperation Council (GCC) countries, who reaffirmed plans for the implementation of a single currency. This paper quantifies, using structural factor models with common factor restrictions, changes in output synchronisation, the importance of common factor or idiosyncratic shocks between the regions, and the synchronisation of these shocks across the GCC as well as the implications for GCC-wide macroeconomic policy at short-to-medium term horizons. Despite current difficulties in fulfilling the convergence criteria goals to monetary union, the results show the synchronisation of output growth fluctuations between economies of the GCC to have increased over the past 25 years. This paper also finds that a fairly sizeable proportion of output fluctuations in business cycle frequencies are driven by a common component that, to some degree, reflects U.S. monetary policy and U.S. demand shocks as well as changes in crude oil prices.     

THE POLITICS OF MAASTRICHT

The Economic and Monetary Union (EMU) treaty signed at Maastricht does not guarantee the recreation of German-style economic policies and outcomes at the European Community (EC) level. Membership was not limited to countries that mimic the German commitment to price stability. National representatives may outvote inflation-averse EC central bankers in monetary policy decisions. The Council of Ministers has the power to set exchange rate policy vis-à-vis third currencies. The treaty does not provide binding constraints against fiscal profligacy in member states. The German government agreed to this suboptimal outcome because in the wake of the demise of the Soviet Union and German unification it had broader political interests in maintaining the pace of European integration at Maastricht. The Bundesbank's policy of high interest rates in 1992, however, has effectively guaranteed a two-speed monetary union, in which the first group of members will be limited to a narrow deutschemark zone. Given the waning enthusiasm for integration across the EC, the German government has no incentive to alter this outcome.     

EMU in Reality: The Effect of a Common Monetary Policy on Economies with Different Transmission Mechanisms

The theory of optimal currency areas states that a single currency zone should have symmetry of shocks and structures across regions. Research on monetary union in Europe has either assumed these conditions to hold close enough not to cause problems, or has focussed on asymmetries in shocks. But what if economic structures and/or market responses differ between countries or regions? This paper examines the consequences of a single monetary policy when there are asymmetries in i) the monetary transmissions; ii) the wage/price transmissions; and iii) private sector asset holdings. We find the first and last destabilise the business cycle, and put countries out of phase with one another in a way that cannot be corrected by deficit constrained fiscal policies. The effect is to delay convergence.     

Overturning Mundell: Fiscal Policy in a Monetary Union

Central to ongoing debates over the desirability of monetary unions is a supposed trade-off, outlined by Mundell (1961) : a monetary union reduces transactions costs but renders stabilization policy less effective. If shocks across countries are sufficiently correlated, then, according to this argument, delegating monetary policy to a single central bank is not very costly and a monetary union is desirable.
This paper explores this argument in a setting with both monetary and fiscal policies. In an economy with monetary policy alone, we confirm the presence of the trade-off and find that indeed a monetary union will not be welfare improving if the correlation of national shocks is too low. However, fiscal interventions by national governments, combined with a central bank that has the ability to commit to monetary policy, overturn these results. In equilibrium, such a monetary union will be welfare improving for any correlation of shocks.     

Some empirical tests on the integration of economic activity between the euro area and the accession countries

This note looks at the correlation of short‐term business cycles in the euro area and the EU accession countries. The issue is assessed with the help of vector autoregressive models. There are clear differences in the degree of correlation between accession countries. For Hungary and Slovenia, euro area shocks can explain a large share of variation in industrial production, while for some countries this influence is much smaller. For the latter countries, the results imply that joining the monetary union could entail reasonably large costs, unless their business cycles converge closer to the euro area cycle. Generally, for smaller countries the relative influence of the euro area business cycle is larger. Also, it is found that the most advanced accession countries are at least as integrated with the euro area business cycle as some small present member countries of the monetary union. JEL classification: E32, F15, F42.     

Synchronization and diversity in business cycles: a network analysis of the European Union

In this article, we use a correlation matrix and its internal networks to analyse business cycle synchronization across Europe since 2000. This methodology allows us to summarize individual country interactions and co-movements while also capturing the existing heterogeneity of connectivity within the European economic system. Our results indicate that synchronization of the euro zone countries remained stable from 1999 until the current financial crisis, after which co-movements increased sharply and synchronization rose to the highest in the time sample. By endogenously identifying clusters of countries with close connections in their business cycle, we also refute the commonly accepted notion of identifiable core and peripheral euro zone countries.     

Would it have paid to be in the eurozone?

Giving up an independent monetary policy and a flexible exchange rate are the key aspects of joining a monetary union. In this paper we analyse how joining the euro area would have affected the Polish business cycle during the recent financial crisis. To this end we construct a small open economy DSGE model and estimate it for Poland and the euro area. Then we run a counterfactual simulation, assuming Poland's euro area accession in 1q2007. The results are striking — volatilities of GDP and inflation increase substantially. In particular, had Poland adopted the euro, GDP growth would have oscillated between − 6% and + 9% (− 9% to + 11% under more extreme assumptions) instead of between 1% and 7%. We conclude that during the analysed period independent monetary policy and, in particular, the flexible exchange rate played an important stabilizing role for the Polish economy.     

Monetary policy shocks and productivity measures in the G-7 countries

An implication of two-country international real business cycle models is that total factor productivity should be an exogenous stochastic process. Economic theories which feature labor hoarding, variable capacity utilization, and increasing returns predict that measured productivity shifts are not exogenous; instead, expansionary aggregate demand shocks should lead to an increase in measured productivity. For each of the G-7 countries, this paper measures quarterly aggregate total factor productivity for the domestic country and its rest-of-world (G-6) counterpart. In each case the domestic productivity measures are not strictly exogenous: expansionary U.S. monetary policy shocks, as well as other G-6 monetary policy shocks, lead to productivity expansions. The evidence indicates that international business cycle models are misspecified unless they feature endogenous productivity mechanisms.Received: June 2001, Accepted: December 2001, JEL Classification: E5, F4Correspondence to: Charles L. EvansFor their helpful comments, we thank Mario Crucini, Patricia Reynolds, and Steve Strongin. The views expressed in this paper do not necessarily reflect the views of the Federal Reserve Bank of Chicago or the Federal Reserve System.