PRICE STABILITY AND THE ECB'S MONETARY POLICY STRATEGY*

Abstract.  This paper focuses on the price stability objective within the framework of the single monetary policy strategy. It starts by reviewing what this objective, which is common to all central banks, means. Second, this paper focuses exclusively on the anchoring of short- to medium-term inflation expectations (Part 2). Several measures show that this anchoring is effective. A 'two-pillar' small structural macro-economic model framework is used to analyze the impact that this anchoring of expectations has on the determination of the short- to medium-term inflation rate. From this point of view, observed inflation in the euro area seems to be in line with the theory and the ECB's action seems to be very effective. Third, we focus on the other aspect of monetary stability: the degree of price-level uncertainty and the anchoring of inflation expectations in the medium to long term. Even though this assessment is more difficult than it is in the short to medium term, since we only have a track record covering 6 years, various indicators from the theoretical analysis paint a fairly reassuring picture of the effectiveness of the device used by the ECB.     

Design limits and dynamic policy analysis

This paper characterizes the frequency domain properties of feedback control rules in linear systems in order to better understand how different policies affect outcomes frequency by frequency. We are especially concerned in understanding how reductions of variance at some frequencies induce increases in variance at others. Tradeoffs of this type are known in the control literature as design limits. Design limits are important in understanding the full range of effects of macroeconomic stabilization policies. We extend existing results to account for discrete time bivariate systems with rational expectations. Application is made to the evaluation of monetary policy rules.     

Learning about monetary policy rules when the cost-channel matters

We study how monetary policy may affect determinacy and expectational stability (E-stability) of rational expectations equilibrium when the cost channel of monetary policy matters. Focusing on instrumental Taylor-type rules and optimal target rules, we show that standard policies can induce indeterminacy and expectational instability when the cost channel is present. A naïve application of the traditional Taylor principle could be misleading, and expectations-based reaction function under discretion does not always induce determinate and E-stable equilibrium. This result contrasts with the findings of Bullard and Mitra [2002. Learning about monetary policy rules. Journal of Monetary Economics 49, 1105–1129] and Evans and Honkapohja [2003. Expectations and stability problem for optimal monetary policies. Review of Economic Studies 70, 807–824] for the standard new Keynesian model. The ability of the central bank to commit to an optimal policy is an antidote to these problems.     

Measures to tame credit growth: Are they effective?

This paper focuses on policy measures taken to curb bank credit growth in the private sector in the pre-crisis period 2003–2007. Our analysis is based on an original survey conducted in 2010 on eleven central banks in Central and Eastern Europe (CEE). The findings reveal substantial policy intervention: a total of 82 measures were implemented in CEE during the period considered. The paper presents a panel data analysis of the effectiveness of the policy measures adopted in the region. The overall results indicate that certain measures – particularly asset classification and provisioning rules and loan eligibility criteria – might have been effective in taming bank credit growth, especially if applied in the context of more general policy measures featuring a combination of various instruments. However, in countries in which the authorities managed to somewhat decrease the flows of bank credit into the economy, the measures were often circumvented via direct, cross-border credit from foreign banks and credit provided by domestic, non-bank financial companies.     

基于状态转移模型的我国股指期货走势预测方法

文章应用马尔科夫状态转移模型,假定股指期货收益服从正态分布,将中国内地股指期货品种IF1103收益分为三个状态,发现80%的收益都很平稳,波动不大,且持续时间长,少数收益波动很大,持续时间很短,这与实际基本符合。     

Monetary policy and learning from the central bank's forecast

We examine the expectational stability (E-stability) of rational expectations equilibrium (REE) in a standard New Keynesian model in which private agents refer to the central bank's forecast in the process of adaptive learning. To satisfy the E-stability condition in this environment, the central bank must respond more strongly to the expected inflation rate than the extent to which the Taylor principle suggests. However, the central bank's strong reaction to the expected inflation rate raises the possibility of indeterminacy of the REE. In considering these problems, a robust policy requires responding to the current inflation rate to a certain degree.     

Inflation targeting and monetary policy in Canada: What is the impact on inflation uncertainty?

Inflation uncertainty has been demonstrated both theoretically and empirically to lower real output. This paper examines the impact of inflation targeting in Canada on inflation uncertainty, as well as persistence. Our results indicate that inflation targeting lowered inflation persistence, but actually increased uncertainty. Such an effect may be due to the failure of the previous formal target, the M1 money supply, to successfully combat inflation.     

不确定性冲击下利率传导机制

本文考察了货币政策不确定性冲击下市场利率之间的传导机制。首先,应用时变系数马尔科夫区制转移模型提取代表货币政策不确定性的利率不确定性。其次,采用Dirichlet VAR模型考察了这种不确定性冲击下政策利率和市场利率之间的传导关系。最后,结合二元和多元变量之间的影响关系,给出了不确定性冲击下利率的核心传导结构。实证结果表明：不考虑不确定性冲击时,政策利率和货币市场利率之间存在基本的传导环路,货币市场和债券市场之间形成了市场化的传导环路。考虑不确定性冲击时,利率内在不确定性直接影响了股票市场收益率的变动;利率外在不确定性对债券市场和股票市场都会带来影响,进而影响市场上的融资成本。     

The design and communication of systematic monetary policy strategies

The efficacy of central bank communications is inextricably linked to the characteristics of the monetary policy framework. Therefore, this paper presents a set of fundamental principles regarding the joint design of monetary policy strategy and communications. The practical implications of these principles are illustrated by considering a number of significant policy challenges faced by central banks in the advanced economies.