Central bank independence: Only part of the inflation story

Summary Central bank independence: Only part of the inflation story The idea that countries with an independent central bank perform better on price stability is very popular and confirmed by studies investigating the issue empirically. Yet, using the Barro-Gordon model we show that the gains from a more independent central bank are not fixed. They are larger in countries with unstable governments, not committed to fixed exchange rates, and in countries were left-wing parties hold a strong position. The effect of increasing central bank independence is also shown to depend on the level of the natural unemployment rate and the slope of the short-term Phillips curve.We are grateful to Eric Pentecost and two referees of this journal for valuable comments on an earlier version of the paper. Any remaining errors are ours.     

The Impact of EMU on Inflation Expectations

This paper analyses the impact of the monetary regime change from the Bundesbank to the ECB on inflation expectations. In the theoretical part, the Barro-Gordon model is used to derive the potential effect of a new central bank on inflation and inflation expectations. The econometric investigation is based on a flexible specification of expectation formation which allows both for rational and adaptive elements. The results indicate that the monetary regime change did not have a strong and lasting impact on the formation of inflation expectations and that the credibility of both central banks is not perceived to differ significantly anymore. JEL Classification Numbers: E 58, E 31     

What Causes China＇s High Inflation？ A Threshold Structural Vector Autoregression Analysis

China＇s astonishing economic growth implies a necessity to understand its inflation. The present paper employs threshold nonrecursive structural vector autoregression analysis to explore the asymmetric effects of macro-variables on inflation in low and high inflation regimes. The empirical evidence demonstrates, first, that the reactions of inflation to various shocks are inflation-regime-dependent and asymmetric. Second, monetary policy influences China ＂s high inflation and adjusting the domestic interest rate in China may be an effective way to control inflation in a high inflation regime, but not in a low inflation regime. In a high inflation regime, a high inflation rate may cause the macro-policy authorities to increase the domestic interest rate, in an attempt to stabilize high inflation. Third, contrary to expectations, the world oil price is not a strong cost-push factor in a low inflation regime. Oil price increases may increase inflation in a high inflation regime, but there is no such obvious effect in a low inflation regime. Finally, China ＂s nominal effective exchange rate influences inflation in both low and high inflation regimes. A nominal effeetive exchange rate appreciation might be effective in controlling domestic inflation in both regimes.     

新兴市场经济国家通货膨胀与汇率制度选择

本文利用23个新兴市场经济国家20年间的面板数据,对汇率制度和通货膨胀的关系进行实证研究,对我国汇率改革实践进行了考察。从我国的实际情况看,汇率波动的幅度越大则通胀率均值越大,2005年实行管理浮动以来我国通胀率处于明显的上升趋势。我国应该限制人民币升值幅度,发挥汇率的"名义驻锚"的作用,以此遏制通胀的进一步发展。     

新兴市场经济国家通货膨胀发生概率与汇率制度选择——基于定性响应模型的实证研究

汇率制度选择问题是国际金融学研究领域的重要研究问题,选择适当的汇率制度对于处在转型过程中的新兴市场经济国家具有重要的现实意义。本文对23个新兴市场经济国家的460个样本建立了定性响应模型（Qualitative response model）,对这些国家1985—2004年间汇率制度与通胀发生概率二者之间的关系进行了实证分析,研究发现：固定汇率制度可以降低通胀发生的概率;模拟结果显示,如果我国实行固定汇率制度,通货膨胀发生的概率均明显低于同期对应的其他汇率制度下的概率;通货膨胀发生概率多次出现的阶段性高点与我国历次通货膨胀发生的时间段相吻合;2007年和2008年我国具有较高的发生通胀的可能性。目前,我国尚处于经济转型之中,应该继续维持固定汇率制度,以此作为反通胀的名义驻锚。     

Exchange Rate Pass-through,Unemployment and Optimal Implementable Monetary Policy Rule for Emerging Economies

Abstract

This paper develops a small open economy model with nominal rigidities and search-matching frictions to study the implications of exchange rate pass-through for monetary policy in emerging countries. I find that, with complete exchange rate pass-through, the optimal policy rule features unemployment targeting as well as inflation targeting. However, the welfare gain from responding to unemployment fluctuations diminishes as the rate of exchange rate pass-through to import prices decreases. With low exchange rate pass-through, the optimal monetary policy is strict inflation targeting.     

Price Stability and the Case for Flexible Exchange Rates

We revisit Friedman’s case for flexible exchange rates in a small open economy with several distortions and rigidities and a variety of domestic and external shocks. We find that, for external shocks, the flexible exchange rate regime outperforms the fixed regime independent of the source of domestic nominal rigidities provided that the monetary authorities pursue a policy of strict inflation targeting. For domestic supply shocks, a joint policy of a flexible exchange rate and strict inflation targeting fares well when the main source of nominal rigidities is in the domestic goods markets, but not if rigidities arise in the labor markets.     

Optimal Exchange Intervention in an Inflation Targeting Regime: Some Cautionary Tales

Devaluations and fiscal retrenchments coming from developed countries are buffeting less developed countries. Many emerging market countries have adopted inflation targeting as “best practice,” but now they are being advised to enhance their inflation targeting regimes with foreign exchange intervention. Here we use a DSGE model to tell some cautionary tales about this advice. A Taylor rule guides interest rate setting, while foreign exchange interventions are used as a second tool of monetary policy. These interventions are effective in our model since domestic and key currency bonds are imperfect substitutes. We derive optimal (Ramsey) intervention policies in response to foreign devaluations and fiscal retrenchments, and find that they are rather complex. So, we compare the optimal responses to policies that simply smooth real or nominal exchange rate movements. Our results suggest that discretion may be the better part of valor: pure inflation targeting may come closer to the optimal policy than exchange rate smoothing. A secondary result may also be of some interest: foreign exchange interventions have a stronger impact on inflation and output in an inflation targeting regime than do sterilized interventions; the Taylor rule augments the effects of a given intervention.     

Inflation-targeting under a Managed Exchange Rate: the Case of the Chinese Central Bank

In 2004, the People's Bank of China (PBC) is reported to have abandoned the quantity of money as its intermediate goal and to adopt some elements of the apparatus of inflation targeting, without giving up the managed exchange rate regime for the renminbi (RMB), the Chinese currency. We show in this paper, using a dynamic setting, that partially implementing the apparatus of inflation targeting by the PBC to improve the performance of monetary policy encounters various difficulties from out-of-equilibrium dynamics to macro-economic and financial instability. In this context, some macro-economic measures can be helpful for reducing disequilibrium. Further development of internal monetary and financial markets and assigning balanced weights by the PBC to inflation and output targets are necessary conditions for the regime to be stable.     

Monetary Aggregates Targeting,Inflation Targeting and Inflation Stabilization in Ghana

The central bank of Ghana (BoG) has operated monetary aggregates targeting and inflation targeting since the 1980s, to ensure enhanced output growth, low unemployment and stable, low inflation. Under inflation targeting, the inflation rate averaged 13.26 per cent per annum between 2007 and 2015, compared with 29.22 per cent per annum under monetary aggregates targeting. The relatively lower inflation rates notwithstanding, an average inflation rate of 13.2 per cent per annum is far above the medium‐term target of 8 per cent. This paper has examined the effectiveness of monetary aggregates targeting and inflation targeting in keeping inflation at moderate levels. The autoregressive distributed lag (ARDL) model was applied to the data covering the period 1970–2015. The results show that monetary targeting has steered inflation to moderate levels only in the short run while inflation targeting has maintained low inflation rates in both short run and long run. But neither regime has kept inflation at stable levels and within the target band, due to the sluggish transmission of broad money supply and prime rate changes to inflation. We implore the monetary authorities to strengthen the institutional setup for steering short‐term interest rates in Ghana. They should also enhance the BoG Act 2002 (Act 612), to develop secondary anchors and rules around output, money supply and fiscal deficit. Finally, the monetary policy committee should monetary policy credibility and transparency through strengthening its communication framework.     

Output gaps and inflation in Mainland China

We estimate output gaps using three methods for Mainland China on annual data spanning 1982–2003. The estimates are similar and appear to co-move with inflation. Standard Phillips curves, however, do not fit the data well. This may reflect the omission of some important variable(s) such as the effect of price deregulation, trade liberalisation and/or changes in the exchange rate regime. We re-estimate the Phillips curves assuming that there is an unobserved variable that follows an AR(2) process. The modified model fits the data much better and accounts for some of the surprising features of the simple Phillips curve estimates.     

Targeting Rules for an Open Economy

This study extends the formal analysis of inflation targeting monetary policy using the standard New Keynesian framework to a small open economy by adding inflation and output persistence as well as a direct exchange rate channel to domestic inflation. We find that output variability is lower under CPI inflation targeting than under domestic inflation targeting. However, CPI inflation results in higher variability of the real exchange rate than domestic inflation targeting. Output and the nominal interest rate are less volatile under flexible inflation targeting than under almost-strict inflation targeting. We also find that almost-strict domestic inflation targeting cannot completely insulate domestic inflation from foreign shocks due to a direct exchange rate channel. The model is calibrated to Canadian data.     

What to Target? Inflation or Exchange Rate

This study empirically compares, for the first time, the popular exchange‐rate–targeting regime with the recently emerged inflation‐targeting framework in developing countries. Applying a variety of propensity score matching methods and dynamic panel generalized method of moments (GMM) regressions to a sample of 50 developing countries for the years 1990–2006, we find strong and robust evidence that, compared to exchange‐rate targeting, inflation targeting leads to a significantly lower inflation rate, and the lower inflation rate does not come at a cost of slower growth.     

Changes in misalignment of the Korean won: Towards a flexible exchange rate regime

This paper investigates whether the adoption of a more floating exchange rate regime with inflation targeting has improved the vulnerability of the exchange rate, by looking at the Korean case. Using the NATREX model, I estimate the equilibrium real exchange rate of the Won and its misalignment. The unit‐root test for misalignment and the unrestrictive vector autoregressive (VAR) impulse response function test show that under a more flexible exchange rate regime, the vulnerability of the exchange rate regime to external shocks has declined.     

Exchange Rate Behavior of Canada,Japan, the United Kingdom and the United States

We revisit a significant research topic on exchange rate behavior by restating the test procedures with an appropriate econometric methodology to re-examine three aspects. (i) Does the inflation (price) factor affect nominal exchange rate? (ii) Do relative interest rates affect a country’s exchange rate? (iii) Do the price and interest rate effects hold if controls for non-parity factors are embedded in tests? The quarterly data series for this study are taken over 55 years. The traditional parity condition model with price and interest rate as criterion variables is extended to take into account recently-verified non-parity factors, namely trade, productivity and foreign reserves. The results affirm that both parity factors and also the non-parity factors significantly affect the exchange rates of Canada, Japan, the United Kingdom and the United States. In our view, these findings relating to four free-floating currencies help extend our knowledge on how currency behavior is consistent with parity and non-parity theorems using a relevant methodological approach in this study.     

Inflation Under Alternative Exchange Rate Regimes: What Happens When Countries Differ in Size?

A three-country model is used to analyze how country size affects inflation under different exchange rate regimes. Two countries, an anchor country (leader) and a pegging country (follower), are examined where the latter differs in size. We find that the leader's preference for floating over pegging is unaffected by the follower's size except in the case where the follower is very small. However, as the follower gets smaller, the leader's inflation worsens under floating but improves under the single-currency peg. For the follower, as it gets smaller, its inflation performance improves when it floats its currency. But which regime is preferred is unclear.     

COPING WITH INFLATION AND EXCHANGE RATE SHOCKS IN THE SOUTH AFRICAN ECONOMY

Over the past ten years South Africa has moved to an increasingly open economy, characterised by a (relatively) low inflation and large and unpredictable movements in the prices of financial assets. One of these asset prices is the value of the South African currency. This volatility in the exchange rate has a direct impact on inflation. Using the interest rate as operational target, a central bank might ignore or underestimate the exchange rate transmission mechanism through which the economy is influenced. This paper proposes a Monetary Conditions Index for South Africa that can be used as a policy rule or simply as an important information variable in conducting monetary policy under an inflation‐targeting regime with a volatile exchange rate.     

Dynamic Transition of Exchange Rate Regime in China

Thepaper considers the optimal transition path for China＇s exchange rate regime. How can China successfully make the shift from the current dollar peg regime to a more desirable regime, whether a basket peg or a floating regime？ To answer this question, we develop a dynamic small open economy general equilibrium model. We construct four transition policies based on a basket peg or a floating regime and compare the welfare gains of these policies relative to maintaining the dollar peg regime. Two main results are derived from the quantitative analysis using Chinese data from 1999Q1 to 2010Q4. First, following a gradual adjustment to a basket peg regime is the most appropriate path for China to take, with minimal welfare losses associated with the shift in the exchange rate regime. Second, a sudden shift to the basket peg is the second best solution, and is superior to a sudden shift to floating because the monetary authority can efficiently determine optimal weights to attach to currencies in the basket to achieve policy goals once they adopt a basket peg regime.     

Potential Impact of Climate Change and Armed Conflict on Inequality in Sub-Saharan Africa

This study investigates the potential impact of climate change and armed conflict on inequality in Sub-Saharan Africa (SSA). The system-GMM for a panel of 35 SSA countries is employed using annual data from 1997 to 2018. The empirical results indicate that armed conflict and climate are major drivers of inequality in SSA. The direct impact of the two determinants is more than the indirect impact. Also, the impact of armed conflict is more than the climate change. The coefficients of population growth, output growth, unemployment, natural rent, exchange rate and inflation rate are significant positive predictors of inequality in the SSA. The study advocates for a multidisciplinary inclusive growth strategy that prioritises the climate change reversal, de-escalation of armed conflict, population control, reduction of the unemployment rate and increasing informal sector productivity, to promote inclusive growth and reduce inequality. However, sequencing the policy targets relative to the magnitude of their impact on inequality is extremely crucial.     

The credibility of the European exchange rate mechanism

Using a panel data approach and three different credibilitymeasures, we argue that unemployment, inflation, and budgetdeficits in participating countries have affected the credibilityof the Exchange Rate Mechanism of the EMS. In contrast to mostprevious research, which focuses upon the credibility of exchangerate policies of individual member states, the analysis focusesupon the credibility of the system. The credibility indicatorsused are short- and long-term interest differentials vis-à-visGermany and short-term interest differentials which have beenadjusted for expected exchange rate movements within the band.Both long-term and error-correction models are estimated.