Monetary policy evaluation. A counterfactual analysis based on dynamic factor models

This article complements the recent literature analysing the effects of the unconventional monetary stimuli applied after the Great Recession by proposing an intuitive and easy-to-implement method to evaluate different exit strategies towards a traditional monetary context. This approach, useful for central bankers or researchers interested in the effects of tapering, allows us to evaluate the consequences of a given monetary policy path on the future evolution of key macroeconomic indicators. The results based on this methodology provide a measurement of the differences in economic performance under contractionary and expansionary policies and support the recent success of monetary stimuli in boosting real indicators while having little effect on inflation.     

Asymmetric monetary policy rules for the euro area and the US

We analyse the implications of asymmetric monetary policy rules by estimating Markov-switching DSGE models for the euro area (EA) and the US. The estimations show that until mid-2014 the ECB’s response to inflation was more forceful when inflation was above than below the central bank’s aim. Since then, the ECB’s policy can be characterised as symmetric, and we quantify the macroeconomic implications of this policy change. We uncover asymmetries also in the Fed’s policy, which has responded more strongly in times of crisis. We compute optimal simple rules for the EA and the US in an environment with the effective lower bound and a low neutral real rate, and find that it prescribes a stronger response to inflation and the output gap when inflation is below target compared to when it is above target. We document its stabilisation properties had this optimal rule been implemented over the last two decades.     

Using pre-EMU money market rates to assess monetary policy in the euro area

This note addresses the problems arising when using national pre-EMU interest rate data in the estimation of monetary policy reaction functions for the euro area. We provide evidence that failing to adjust for interest rate risk premia leads to an overestimation of the response of monetary policy both to inflationary pressures and to the output gap. A method for adjusting pre-EMU interest rate data for risk premia is proposed.     

Monetary transmission with multiple policy rates: evidence from Turkey

Quantitative easing policies have led to persistent divergence between officially announced policy rates and short-term money market rates in many economies, making it challenging to assess the stance of monetary policy in the aftermath of the global financial crisis. Lack of data variation in short-term interest rates across time dimension has made it difficult to identify the monetary transmission mechanisms. In order to shed some light on this topic, we make advantage of a specific period from Turkey during which the central bank deliberately allowed the policy rates to diverge frequently from the interbank rates due to capital flow management purposes. Using bank-level flow data from this episode, we investigate the relationship between various short-term interest rate measures and bank loan/deposit rates through panel estimation methods. Our findings suggest that interbank rates are more relevant than central bank’s officially announced rates for the transmission of monetary policy when the two diverge from each other persistently. Interbank rates particularly play a key role in the pricing of loans and deposits. These findings provide helpful guidance for evaluating the monetary stance under unconventional policies.     

How useful is the concept of the natural real rate of interest for monetary policy?

The natural rate of interest plays a key role in Wicksell's‘cumulative process’ as well as in modern monetaryequilibrium models of the business cycle. It constitutes a usefulconcept for the theoretical analysis of the interdependenceof monetary policy and economic fluctuations. However, the usefulnessof this concept for the practice of monetary policy is limited—especiallyowing to the fact that the natural real rate of interest andits law of motion cannot be measured with satisfying precision.     

Searching for the natural rate of interest: a euro area perspective

A time-varying natural rate of interest is estimated for the euro area using a multivariate unobserved components model. The problem of aggregating interest rate data for the pre-EMU period is directly addressed, and a simple method is proposed in order to adjust the risk premia in the interest rate data prior to 1999. We show that, for the pre-EMU period, using risk-unadjusted policy rates leads to periods of high risk premia being erroneously taken as monetary policy replies to the output gap; in contrast, using risk-adjusted policy rates yields an estimate of the reaction of monetary policy to the output gap corresponding approximately to an increase of 40 basis points for a 1%positive deviation of output from potential output. A positive deviation of inflation from its trend of 1%is estimated to have triggered an approximately 1.2%increase in short-term interest rates.     

Monetary policy before and after the euro: evidence from Greece

We model Greek monetary policy in the 1990s and use our findings to address two interrelated questions. First, how was monetary policy conducted in the 1990s so that the hitherto highest-inflation EU country managed to join the euro by 2001? Second, how compatible is the ECB monetary policy with Greek economic conditions? We find that Greek monetary policy in the 1990s was: (i) primarily determined by German/ECB interest rates, though still influenced by domestic fundamentals; (ii) involving non-linear output gap effects; (iii) subject to a deficit of credibility culminating in the 1998 devaluation. On the question of compatibility our findings depend on the value assumed for the equilibrium post-euro real interest rate and overall indicate both a reduction in the pre-euro risk premium and some degree of monetary policy incompatibility. Our analysis has policy implications for the new EU members and motivates further research on fast-growing EMU economies.     

Monetary policy and systemic risk-taking in the euro area banking sector

Available empirical evidence on the significance of the (micro) risk-taking channel of monetary policy is not enough to indicate a threat to financial stability. Evidence of risk-taking with systemic risk implications is necessary. Statistical measures that capture systemic risk in all its forms within a structural factor-augmented vector autoregressive model suggest that conventional and unconventional monetary policies have resulted in systemic risk-taking in the euro area banking sector. Systemic risk has taken the form of an increase in the banking sector’s vulnerability via contagion and interconnectedness. Banks’ balance sheets, however, do not account for the full transmission from (micro) risk taking to systemic risk-taking. The main policy implication is that a persistently accommodative monetary policy may drive a monetary authority with a price stability mandate to consider a possible trade-off with financial stability. At a minimum, coordination between monetary and macro-prudential policies requires serious consideration.     

Monetary policy inertia reconsidered: Evidence from endogenous interest rate trajectory

By finding small forecastable variability of future policy rates by highly smoothed central bank's endogenous interest rate trajectory, I suggest that market's failure to predict large portion of variability in future rates does not always imply limited policy inertia.     

Optimal monetary–fiscal policy in the euro area liquidity crisis

We build an euro-area level DSGE model featuring a liquidity shock in the sovereign bonds market to simulate the strong contraction in economic activity observed during the 2008–2009 crisis. In the model, a sudden deterioration of the liquidity property of sovereign bonds is associated with deep recession and deflation. Against this background we characterize optimal monetary and fiscal policy with full commitment. We find that the optimal policy contains three features: (i) the policy rate is lowered until hitting the zero lower bound (ZLB) and then is kept at the ZLB for more periods; (ii) a prolonged central bank’s balance-sheet expansion aimed at restoring the liquidity deteriorated; (iii) a counter-cyclical fiscal stimulus which offsets, to a large extent, the fall in private spending caused by the liquidity shock. Policy regimes involving (i), but not (ii) and (iii), are quite weak in stabilizing output gap and inflation. Monetary policy regimes such as full inflation-targeting or nominal GDP targeting perform remarkably well insofar as they are complemented with an optimally-implemented counter-cyclical fiscal policy. Our results tend to favour the view that, in case of recession, an euro-wide coordinated fiscal policy should supplement the role of the ECB in achieving its primary objective.     

Monetary policy rules and directions of causality: A test for the euro area

Abstract

Using a VAR model in first differences with quarterly data for the euro zone, the study aims to ascertain whether decisions on monetary policy can be interpreted in terms of a “monetary policy rule” with specific reference to the so-called nominal GDP targeting rule (Hall and Mankiw, 1994 Granger, C.W.J. “Investigating Causal Relations by Econometric Models and Cross-Spectral Methods.” Econometrica, 1969, 37 (3), 424–438.[Crossref], [Web of Science ®] , [Google Scholar]; McCallum, 1988 McCallum, B. “Nominal GDP Targeting”, Shadow Open Market Committee, October 21, 2011. [Google Scholar]; Woodford, 2012 Taylor, J.B., Williams, J.C. “Simple and Robust Rules for Monetary Policy”, NBER Working Paper No. 15908, April, 2010. [Google Scholar]). The results obtained indicate a causal relation proceeding from deviation between the growth rates of nominal gross domestic product (GDP) and target GDP to variation in the three-month market interest rate. The same analyses do not, however, appear to confirm the existence of a significant inverse causal relation from variation in the market interest rate to deviation between the nominal and target GDP growth rates. Similar results were obtained on replacing the market interest rate with the European Central Bank refinancing interest rate. This confirmation of only one of the two directions of causality does not support an interpretation of monetary policy based on the nominal GDP targeting rule and gives rise to doubt in more general terms as to the applicability of the Taylor rule and all the conventional rules of monetary policy to the case in question. The results appear instead to be more in line with other possible approaches, such as those based on post Keynesian analyses of monetary theory and policy and more specifically the so-called solvency rule (Brancaccio and Fontana, 2013 ———. Macroeconomics, 2nd ed., Pearson Education Company, ch. 30. [Google Scholar], 2015 Brancaccio, E. The Central Banker as “Regulator” of Conflict. In G. Fontana and M. Setterfield (eds.), Macroeconomic Theory and Macroeconomic Pedagogy. Basingstoke: Palgrave Macmillan, 2009, 295–308.[Crossref] , [Google Scholar]). These lines of research challenge the simplistic argument that the scope of monetary policy consists in the stabilization of inflation, real GDP, or nominal income around a “natural equilibrium” level. Rather, they suggest that central banks actually follow a more complex purpose, which is the political regulation of the financial system with particular reference to the relations between creditors and debtors and the related solvency of economic units.     

Monetary policy in the UK

The authors argue that the institutional dimension of the Bankof England monetary policy and the role the UK HM Treasury assumesin this framework are both firmly based on the New Consensusin Macroeconomics (NCM). This is also the theoretical frameworkupon which the inflation targeting element of monetary policyis firmly based. This paper discusses these aspects of UK monetarypolicy, and then assesses the policy that has been pursued since1997 (with some reference made to the period between 1992 and1997 when a version of the framework was introduced). The strategyhas been successful in terms of keeping UK inflation rates withinthe targets set by HM Treasury. However, a number of problematicissues are highlighted and discussed.     

Assessing monetary policy in the euro area: a factor-augmented VAR approach

In order to overcome the omitted information problem of small-scale Vector Autoregression (VAR) models, this study combines the VAR methodology with dynamic factor analysis and assesses the effects of monetary policy shocks in the euro area in the period during which there is a single monetary policy. Using the Factor-Augmented Vector Autoregressive (FAVAR) approach of Bernanke et al. (2005 Bernanke, B, Boivin, J and Eliasz, P. 2005. Measuring the effects of monetary policy: a factor-augmented vector autoregressive (FAVAR) approach. The Quarterly Journal of Economics, 120: 387–422. [Crossref], [Web of Science ®] , [Google Scholar]), we summarize the information contained in a large set of macroeconomic time series with a small number of estimated factors and use them as regressors in recursive VARs to evaluate the impact of the nonsystematic component of the European Central Bank's (ECB's) actions. Overall, our results suggest that the inclusion of factors in the VAR allows us to obtain a more coherent picture of the effects of monetary policy innovations, both by achieving responses easier to understand from the theoretical point of view and by increasing the precision of such responses. Moreover, this framework allows us to compute impulse-response functions for all the variables included in the panel, thereby providing a more complete depiction of the effects of policy disturbances. However, the extra information generated by the FAVAR also delivers some puzzling responses, in particular those relating to exchange rates.     

The lower bound and the causes of monetary policy inertia: evidence from Sweden

In 2009, in the midst of a global recession, Sweden’s Riksbank approached a lower bound on nominal interest rates. This encounter with the lower bound provides a natural experiment for investigating the causes of monetary policy inertia. To exploit this experiment, we estimate Taylor rules with Tobit specifications that permit both interest rate smoothing and persistent shocks (serial correlation) as explanations for inertia. The interest rate smoothing hypothesis leads to a specification in which lagged actual values of the dependent variable appear on the right-hand side of the Taylor rule, while the persistent shocks hypothesis leads to a specification in which lagged values of an unobserved latent dependent variable appear on the right-hand side of the Taylor rule. The divergence of actual and latent dependent variables that occurs at the lower bound provides leverage in distinguishing the two hypotheses. For a conventional Taylor rule, we find evidence of both sources of inertia. For a modified Taylor rule that includes a measure of financial stress, our evidence suggests that interest rate smoothing is the principal source of monetary policy inertia.     

Deleveraging,deflation and depreciation in the euro area

During the post-crisis period, economic performance has been highly heterogenous across the euro area. While some economies rebounded quickly after the 2009 output collapse, others are undergoing a protracted further decline as part of an extensive deleveraging process. At the same time, inflation has been subdued throughout the whole of the euro area and intra-euro-area exchange rates have hardly moved. We interpret these facts through the lens of a two-country model of a currency union. We find that deleveraging in one country generates deflationary spillovers which cannot be contained by monetary policy, as it becomes constrained by the zero lower bound. As a result, the real exchange rate response becomes muted, and the output collapse—concentrated in the deleveraging economies.     

Stabilization Effects of Narrative-based Monetary Policy in Jamaica

The study constructs a monetary policy indicator (MPI) from monetary policy documents and the actions of the Bank of Jamaica and Ministry of Finance and Economic Planning, and uses it to estimate four variants of an analytical narrative-vector error correction model (AN-VECM) with cointegration as the identifying restriction. In AN-VECMs 1 and 2, the cointegration is estimated in level form with respective short-term interest rate and the MPI as regressands. The first difference forms of respective models are re-estimated in AN-VECMs 3 and 4. The results are mixed, with AN-VECM 1 yielding the least results. However, in all cases, the impulse response functions indicate that the MPI yields slightly superior results in both AN-VECMs 2 and 4. A positive shock in the MPI produces price and exchange rate results which are consistent with a priori expectations from economic theory, and mixed liquidity effect and real output results. Thus, the MPI provides an important policy tool alternative for policymakers in small open economies to consider in the implementation of monetary policy.     

Monetary policy on interest rates: a retrospective analysis since Thornton

Abstract

In response to the affirmation by certain authors and critics of a recent return to an interest-rate policy that, in their opinion, resembles a throwback to the nineteenth century theory of monetary policy on interest rates, I pose the question of the difficulties of interest-rate policy in a retrospective analysis beginning with the current that founded the short-term interest rate policy within classical analysis and by focusing my discussion on several key authors (Thornton, Banking School, Bagehot, Wicksell, Keynes, contemporary authors such as Woodford). To this end, I study the importance that the interbank money market plays for these authors, which determines the target rate for the central bank.     

Monetary policy, oil shocks, and TFP: Accounting for the decline in US volatility

An equilibrium model is used to assess the quantitative importance of monetary policy for the post-1984 decline in US inflation and output volatility. The principal finding is that monetary policy played a substantial role in reducing inflation volatility, but a small role in reducing real output volatility. The model attributes much of the decline in real output volatility to smaller TFP shocks. We also investigate the pattern of output and inflation volatility under an optimal monetary policy counterfactual. We find that real output volatility would have been somewhat lower, and inflation volatility substantially lower, had monetary policy been set optimally.     

Monetary policy design and transmission asymmetry in EMU: Does uncertainty matter?

In this paper, we consider how uncertainty affects the choice between federal monetary policy based on national and union-wide aggregate data under conditions of asymmetry in the transmission of monetary policy. We find that the uncertainty about the transmission process sustains (and, in some cases, even reinforces) the need to take into account information about national economies in the formulation of monetary policy. Also the forecasting process matters when uncertainty is additive: in particular, when union-wide forecasting is more accurate than national-based forecasting, this advantage can compensate for the welfare loss from using union-wide aggregation. There is, however, a strong case for using national information in the optimal design of common monetary policy.     

Monetary and fiscal policy interactions in a New Keynesian model with capital accumulation and non-Ricardian consumers

The paper examines simple monetary and fiscal policy rules consistent with determinate equilibrium dynamics in the absence of Ricardian equivalence. Under this assumption, government debt turns into a relevant state variable which needs to be accounted for in the analysis of equilibrium dynamics. The key analytical finding is that without explicit reference to the level of government debt it is not possible to infer how strongly the monetary and fiscal instruments should be used to ensure determinate equilibrium dynamics. Specifically, we identify bifurcations associated with threshold values of steady-state debt, leading to qualitative changes in the local determinacy requirements.