Monetary policy implementation and transmission in the European Monetary Union

I discuss possible problems engendered by loss of national monetary policies, and study them from three empirical perspectives. First, are business cycles sufficiently synchronized across EMU member countries? The evidence suggests that economic activity in those countries has become increasingly correlated in the 1990s, and that policy co–ordination has played a role in generating that outcome. Second, are there asymmetries in the mechanisms through which policy affects economic activity? The paper documents that policy transmission was indeed heterogeneous in the member countries, and that structural and financial factors were sensibly related to cross–country differences in the response of output to a monetary policy shock. Third, how is policy implemented in an environment of diverse business cycle fundamentals and transmission mechanisms? Estimation of monetary policy reaction functions finds that the European Central Bank is closer to an aggregate of the central banks in Germany, France, and Italy than to the Bundesbank alone.     

Examining asymmetries in the transmission of monetary policy in the euro area: Evidence from a mixed cross-section global VAR model

I estimate the transmission of a common euro area monetary policy shock across individual euro area economies. To do so, I develop a global VAR model in which all euro area economies are included individually while, at the same time, their common monetary policy is modelled as a function of euro area aggregate output growth and inflation. The results suggest that the transmission of monetary policy across euro area economies displays asymmetries, and that, in line with economic theory, these are driven by differences in economies׳ structural characteristics. In particular, euro area economies in which a higher share of aggregate output is accounted for by sectors servicing interest rate sensitive demand exhibit a stronger transmission of monetary policy to real activity. Similarly, even though the evidence is less conclusive, euro area economies which feature more real wage and/or fewer unemployment rigidities also appear to display a stronger transmission of monetary policy to real activity.     

A realistic model for official interest rate movements and their consequences

This article extends the Vector Autoregression (VAR) methodology to examine the consequences of monetary policy decisions by considering two types of nonlinearities in the determination of official interest rates: (1) the asymmetry related to the different nature of the discrete and infrequent positive and negative interest rate movements determined by central bankers and (2) the convexity in the transmission of policy shocks induced by the nonnegativity constraint in interest rates. For the UK, we find some evidence of both types of asymmetries. In the US, responses to unexpected interest rate shocks are far more symmetric. Results highlight the importance of considering all types of asymmetries when studying monetary transmission.     

A threshold cointegration analysis of interest rate pass-through to UK mortgage rates

This paper empirically analyses the interest rate transmission mechanism in the United Kingdom by exploring the pass-through of the official rate to the money market rate and of the market rate to the mortgage rate. Potential asymmetries, due to financial market conditions and monetary policy, lead to the use of a nonlinear threshold error-correction model, with hypothesis tests based on nonstandard bootstrap procedures that take into account the discrete nature of changes in the official rate. The empirical results indicate the presence of substantial asymmetries in both steps of the process, with these asymmetries depending on past changes in the money market rate and whether these are motivated by official rate changes. Generalized impulse response function analysis shows that adjustments differ with regard to the sign and magnitude of interest rate changes in a way that is consistent with conditions in the interbank and mortgage markets over the recent period.     

Is the relationship between monetary policy and house prices asymmetric across bull and bear markets in South Africa? Evidence from a Markov-switching vector autoregressive model

This paper examines asymmetries in the impact of monetary policy on the middle segment of the South African housing market from 1966:M2 to 2011:M12. We use Markov-switching vector autoregressive (MS-VAR) model in which parameters change according to the phase of the housing cycle. The results suggest that monetary policy is not neutral as house price growth decreases substantially with a contractionary monetary policy. We find that the impact of monetary policy is larger in bear regime than in bull regime; indicating the role of information asymmetry in reinforcing the financial constraint of economic agents. As expected, monetary policy reaction to a positive house price shock is found to be stronger in the bull regime. This suggests that the central bank reacts more in bull regime in order to prevent potential crisis related to the subsequent bust in house prices bubbles which are more prominent in bull markets. These results substantiate important asymmetries in the dynamics of house prices in relation to monetary policy, vindicating the advantages of generating regime dependent impulse response functions.     

The time-varying effect of monetary policy in China

A sound understanding of monetary transmission mechanism is valuable because it helps the central bank to determine the proper course of monetary policy to balance growth and inflation. As China’s domestic financial markets deepen and develop further towards a market-based system, the country’s monetary policy instrument and transmission should continue to improve for managing economic conditions. Using a short-term key interest rate as standard monetary policy tool and time-varying parameter techniques, this study empirically demonstrates that China’s monetary policy framework is in the midst of transitioning to a market-based approach.     

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.     

Cross‐country asymmetries in monetary policy transmission: evidence from EMU members

This paper analyzes monetary policy asymmetries in EMU participating countries. In particular, we use a structural dynamic modelling approach to investigate asymmetric monetary transmission in Europe. Asymmetries are investigated in two different ways. First, we restrict the estimated structural models reflecting the monetary constraints each country faced during the EMS period. We obtain well‐behaved and comparable effects of monetary policy shocks. Second, efficiency frontiers for the selected EMU countries are estimated. In computing the optimal combinations of output gap and inflation volatility we use a weighted average of interest rate and exchange rate, i.e. the Monetary Condition Index (MCI), as a policy instrument. The impulse response analysis implemented with the MCI shows relatively small differences in the responses of the real economy to monetary policy shocks. Altogether the results suggest that, no matter which policy instrument is used, output gap and inflation respond to identical monetary shocks with a similar speed and movement, albeit with a different degree of effect.     

Assessing the effects of financial heterogeneity in a monetary union a DSGE approach

The aim of this article is to analyze how financial heterogeneity can accentuate the cyclical divergences inside a monetary union that faces technological, monetary, budgetary and financial shocks. To this purpose, this study relies on a two-country Dynamic Stochastic General Equilibrium model, where the two countries are supposed to be differently sensitive to the bank capital channel. The model allows us to demonstrate how a given symmetric shock causes cyclical divergences inside a heterogeneous monetary union. On this point, it allows reproducing some stylized facts recently observed in the Euro Area. Moreover, it appears that the more heterogeneous the union, the larger the effects of financial asymmetries on the transmission of shocks. Finally, we show that a common monetary policy contributes to worsen cyclical divergences, in comparison with monetary policies that would be nationally conducted.     

HETEROGENEITY IN A CURRENCY UNION WITH SOCIAL MARKET OBJECTIVES

In this paper, we explore whether heterogeneity among union members could threaten the stability of the European Monetary Union. The types of heterogeneity we consider are (1) asymmetries in the transmission of monetary and fiscal policies, and (2) differences in national preferences for price stability, output growth, and income redistribution. Our results show that the costs of membership can be significant for countries whose transmissions, structure, or preferences deviate from those underlying the common monetary policy. In part, these costs arise because monetary policy imposed by an independent central bank automatically constrains the use of fiscal policy by national governments.     

International monetary policy coordination in a new Keynesian model with NICE features

The authors provide a static two-country new Keynesian model to teach two related questions in international macroeconomics: the international transmission of unilateral monetary policy decisions and the gains coming from the coordination monetary rules. They concentrate on “normal times” and use a thoroughly graphical approach to analyze the questions at hand. In this setting monetary policy is conducted using interest rates rules and economic integration between nations does not necessarily create the case for the coordination of monetary policy. In particular, they show that the conduct of optimal national monetary policies does not make any difference with the coordination of national policies, as this creates a situation where the international monetary system operates “Near an International Cooperative Equilibrium” (NICE).     

Does One Size Fit All? A currency union with asymmetric transmissions and a stability pact

The theory of optimal currency areas stresses that a single currency zone should have symmetry across shocks and structures. What happens if the monetary transmission mechanisms differ so that a common monetary policy has different effects in different places? Using a fully specified econometric model, we find that such asymmetries are likely to destabilise the business cycle and put countries out of phase with each other in a way that cannot be corrected by deficit-constrained national fiscal policies. Market discipline, however, could achieve this. Hence, the question is whether the markets would create sufficient discipline on their own.     

On business cycle fluctuations in USA macroeconomic time series

This study employs eighteen USA macroeconomic time series variables to investigate possible existence of asymmetries in business cycle fluctuations in the series. Detection of asymmetric fluctuations in economic activity is important for policymakers since effective monetary policy relies on asymmetric business cycle fluctuations in all the series. The asymmetric deviations from the long-term growth trend in each of the series are modeled using regime switching models and artificial neural networks. The results based on nonlinear switching time series models reveal strong evidence of business cycle asymmetries in most of the series. The results based on in-sample approximations from artificial neural networks show statistically significant evidence of asymmetries in all the series. Similar results are obtained when jackknife out-of-sample approximations from artificial neural networks are used. Thus, the study results show statistically significant evidence of asymmetries in all the series which indicates that business cycle fluctuations in the series are asymmetric, thus alike. Therefore, the impact of monetary policy shocks on the output and the other macroeconomic variables can be anticipated using nonlinear models only. The results on asymmetric business cycle fluctuations in real GDP are in line with recent studies but in sharp contrast with Balke and Fomby (1994).     

Money growth,uncertainty and macroeconomic activity: a multivariate GARCH analysis

The impact uncertainty has on money growth has received much attention in recent years and is an issue of critical importance to central banks, particularly for those, such as the European Central Bank (ECB), which place a strong emphasis on monetary analysis in monetary policy formulation. Some recent papers examining this issue use ad hoc estimates and measure variability rather than uncertainty. We employ a multivariate GARCH model, which measures uncertainty by the conditional variance of the data series, to investigate whether macroeconomic uncertainty and monetary uncertainty Granger-cause changes in real money. The estimated model also allows us to investigate how monetary uncertainty impacts economic activity. We find that macroeconomic uncertainty impacts positively on US real M2 growth over a two-year horizon but that monetary uncertainty does not cause changes in real M2. Instead, our results indicate that real money growth causes monetary uncertainty. Monetary uncertainty is found to have a negative effect on real economic activity and on macroeconomic uncertainty. We conclude by discussing the implications of these results and the methodological approach used for institutions such as the ECB that give monetary analysis a prominent role in their monetary policy strategy.     

Institutional arrangements and public debt threshold limits

Inter-governmental Organisations, such as the IMF and OECD, advocate a medium-term reduction in deficit spending and public debt accumulation among advanced economies to satisfy conditions of fiscal sustainability. Buttressing the need for fiscal austerity, Reinhart and Rogoff claim to have identified a so-called tipping point, beyond which public debt accumulation negatively affects economic growth. While recent data seem to indicate that some Eurozone (non-sovereign) economies have reached a tipping point, for other advanced (sovereign) economies, such as the US, UK and Japan, this is not clear. The mainstream tipping point literature however does not recognise the importance of institutional arrangements for the conduct of fiscal and monetary policy. Furthermore, the literature sheds little light on the transmission mechanism between high public debt and low economic growth. This article draws on the principles of Modern Monetary Theory to discuss institutional arrangements and to justify the theoretical and empirical focus on Eurozone economies. The empirical analysis unpacks the transmission mechanism(s) to reveal that Eurozone economies have reached a public debt threshold limit with respect to long-term interest rates.     

Do asymmetries matter for European monetary policy?

In this paper we analyze the impact of economic and institutional (ECB decision rules) asymmetries on the effectiveness of monetary policy in Euroland. We consider a model where asymmetric shocks and divergent propagation of shocks in output and inflation are potential causes of tensions within the ECB concerning the conduct of common monetary (interest rate) policy. Welfare implications of the alternative decision procedures are discussed.     

The effectiveness of monetary policy and output fluctuations: An asymmetric analysis

Previous studies have investigated asymmetries in the effects of monetary policy on the real economic activity by using either vector autoregressive (VAR)-based regime-switching models with smooth transition technique or Gaussian functions to parameterise the dynamic effects of structural shocks on the economy. These kinds of VAR models assume asymmetry as a short-run relationship between the series since the long-run neutrality hypothesis of money states that monetary policy can only affect productive capacity of the economy in the short run, but not in the long run. The recent theoretical literature shows that this hypothesis is not quite right. Thus, this paper examines the extent to which monetary policy has a long-run asymmetric effect on output in a number of Organisation for Economic Co-operation and Development countries by using a nonlinear hidden cointegration analysis within a likelihood-based panel framework. The findings indicate that there is a long-run relationship between the real interest rate as an indicator of monetary policy and the growth rate of real output in five countries out of nine under review. This gives support for the view that output has responded asymmetrically to the real interest rate changes. The economic implication of our results is that monetary policy affects positive and negative output fluctuations differently.     

On the relevance of exchange rate regimes for stabilization policy

This paper assesses the relevance of the exchange rate regime for stabilization policy. Using both fiscal and monetary policy, we conclude that the exchange rate regime is irrelevant. This is the case independently of the severity of price rigidities, independently of asymmetries across countries in shocks and transmission mechanisms. The only relevant conditions are on the mobility of labor and financial assets. The results can be summarized with the claim that every currency area is an optimal currency area. However, with labor mobility or tradable state-contingent assets, additional policy instruments would be required to establish the irrelevance result.     

Ecological threshold and ecological economic threshold: Implications from an ecological economic model with adaptation

This paper investigates ecological threshold and ecological economic threshold by developing an ecological economic model—an extension of a population–resource dynamics model developed by Brander and Taylor (1998). The model reflects three critical issues regarding an ecological economic system: system boundary, non-convexity, and adaptation. The paper elucidates six main findings: ecological economic threshold may come before ecological threshold; the ecological economic threshold may exhibit a highly context-dependent and dynamic nature, which suggests the precautionary principle; markets do not respond sufficiently to maintain resiliency under an external shock as prices do not reflect thresholds; the system can be restored by intervention, even after crossing the ecological economic threshold; various transitional paths are possible in restoring the system; and adaptation affects resilience to a somewhat significant effect which suggests the importance of better information and education. Because of the complexity of the model, I adopt a system dynamics approach for the development and analysis of the model.     

China's regime-switching monetary policy

To understand Chinese monetary policy, we estimate a forward-looking Taylor-type monetary policy reaction function. The novelty of our paper lies in two aspects. The first is to use a composite overall indicator (the Sun-MP index) to tackle the measurement uncertainty and hence the model selection problem (i.e., a Taylor versus McCallum rule). The second is to capture nonlinearities in the PBC's policy responses with the multiple-regime threshold regression model. We find strong evidence that the PBC's policy reaction function is asymmetric during the post-2000 period and switches across three different regimes. When expecting high inflation, the PBC tightens by adjusting various policy tools; while facing an expected economic slowdown, it eases. However, it is tolerant to low inflation and economic overheating; it barely reacts to them. These findings highlight the importance of allowing for regime switches in modelling the policy response function of a “young” and fast evolving central bank in emerging countries like China.