Dollarization,Inflation Targeting,and Inflationary Dynamics in Ghana

ABSTRACT

The impact of dollarization on domestic economic performance, and the welfare implications of high inflation in an inflation targeting environment, have remained a matter of much concern for policymakers in recent years. This study investigates the effects of dollarization on inflation and inflation uncertainty in Ghana for the period January 1990 to December 2017. We apply the exponential Generalized Autoregressive Conditional Heteroskedasticity model together with impulse response and Granger causality tests to explore how dollarization affects the behavior of inflation for the pre-inflation targeting period (January 1990 – May 2007) and post-inflation targeting period (June 2007 – December 2017). The results indicate that dollarization has not played a significant role in the volatility of inflation in Ghana. Also, inflation Granger causes dollarization in both the pre- and post-inflation targeting regimes. Finally, there is a bidirectional causal relationship between inflation and inflation uncertainty following the adoption of inflation targeting monetary policy. We conclude that, although inflation targeting has not presented a significant impact on inflation volatility, it has affected the relationship between inflation and inflation uncertainty in Ghana. The dynamics of inflation volatility and asymmetries present crucial implications which are discussed to guide policymaking.     

Inflation and Default Dynamics

Changes in inflation, particularly if they are sharp, can have important consequences for nominal contracts, especially debt instruments such as fixed-rate bonds. This paper examines the intricate dynamics of inflation and defaults. The experience of the United States during the past four decades is subjected to empirical analysis to examine how the nature of the relationship changed as we shifted from a high inflation to a low inflation regime. The paper is organized as a three-part study. We initially examine the U.S. default experience, as summarized in Moody's speculative grade default rate, along with industry differences. The paper then scrutinizes U.S. inflation dynamics as seen in different summary measures of the general price level and delves into pricing power issues. The study proceeds to examine co-movements in the inflation and default series from a theoretical and empirical standpoint and the results confirm the intuitive postulate: higher the inflation rate, the more pricing power companies have; greater pricing power leads to, better earnings and repayment abilities for firms and a lower incidence of defaults.     

A Structuralist Inflation Curve

This paper presents a structuralist model of inflation and applies it to the US economy. The model uses a mark‐up rule to specify inflation as a function of income distribution and capacity utilization, as usual in structuralist macroeconomics, but it also includes inflation expectations, the government's inflation target and cost pressures from non‐labor inputs as explaining variables. The model shows how inflation and income distribution, measured by the wage share of income, are connected through an inflation curve in the long run.     

Can a Higher Inflation Target Reduce Inflation Volatility?

This paper investigates the relationship between inflation and inflation volatility. Using monthly data from 1913 to 2013, the results show that U.S. inflation and its volatility have been positively correlated when inflation exceeds a certain value, but negatively correlated when inflation is below this threshold. The evidence also suggests that inflation volatility is minimized between annual inflation rates of 1 and 3.6%, which includes both the 2% inflation target of many central banks, and the 3.5% break point predicted by the New Keynesian model of Coibion et al. ( 2012 ), but not the 4% inflation target recommended by Ball ( 2013 ) and Krugman ( 2013 ).     

The Political Effects of Ageing on Inflation

Why do different countries exhibit different inflation rates? Most political economy accounts emphasise the role of ideas and institutions: as economic research shows that low inflation is achievable at no economic cost, governments delegate monetary policy to independent central banks. Countries with independent central banks and unions that anticipate the consequences of their actions by coordinating wage bargaining in turn achieve lower inflation. This conventional wisdom downplays the importance of interests, ignoring the significant influence that a growing electoral group — the elderly — has on inflation. Because the elderly are politically powerful and inflation averse, countries with more elderly citizens force political parties to adopt more economically orthodox policies when in power, resulting in lower inflation rates in those countries. Ageing populations may therefore lock in a low inflation regime, even when this is not economically desirable.     

通货膨胀目标制的政策内涵及其应用

本文从分析货币政策的规则和相机抉择之争入手，分析通货膨胀目标制作为名义锚在货币政策中的作用与政策含义，在此基础上探讨如何有效地设计和实行通货膨胀目标制。本文认为，我国货币政策在向通货膨胀目标制过渡过程中，要明确货币政策和汇率政策的主从地位，增强中央银行的独立性以及对宏观经济的分析和预测能力，解决中央银行承担最后贷款人义务而造成的通货膨胀隐患，建立核心通货膨胀指标。     

Monetary union without fiscal coordination may discipline policymakers

With benevolent policymakers and fiscal leadership, monetary unification reduces inflation, taxes and public spending. These disciplining effects of a monetary union, which become stronger if the number of participants in the union increases, are likely to raise welfare. Two types of arrangements are considered for the union's common central bank (CCB): making the CCB more conservative and imposing an inflation target on the CCB. In contrast to the results of Svensson (1997)[Svensson, L.E.O., 1997. Optimal inflation targets, `conservative' central banks, and linear inflation contracts. American Economic Review 87, 98–114], an optimally designed, conservative CCB may outperform inflation targeting. Finally, we find that fiscal coordination offsets the disciplining effects of monetary unification. Hence, subsidiarity in fiscal policymaking may enhance welfare.     

MARKETS FOR INFLATION‐INDEXED BONDS AS MECHANISMS FOR EFFICIENT MONETARY POLICY

We consider a continuous‐time framework featuring a central bank, private agents, and a financial market. The central bank's objective is to maximize a functional, which measures the classical trade‐off between output and inflation over time plus income from the sales of inflation‐indexed bonds minus payments for the liabilities that the inflation‐indexed bonds produce at maturity. Private agents are assumed to have adaptive expectations. The financial market is modeled in continuous‐time Black–Scholes–Merton style and financial agents are averse against inflation risk, attaching an inflation risk premium to nominal bonds. Following this route, we explain demand for inflation‐indexed securities on the financial market from a no‐arbitrage assumption and derive pricing formulas for inflation‐linked bonds and calls, which lead to a supply‐demand equilibrium. Furthermore, we study the consequences that the sales of inflation‐indexed securities have on the observed inflation rate and price level. Similar to the study of Walsh, we find that the inflationary bias is significantly reduced, and hence that markets for inflation‐indexed bonds provide a mechanism to reduce inflationary bias and increase central bank's credibility.     

Bitcoin price growth and Indonesia's monetary system

Concerned by the volatility of Bitcoin price growth (BPG), Bank Indonesia—Indonesia's central bank—discourages trading cryptocurrencies. We examine the relationship between Bitcoin price growth (BPG) and Indonesia's monetary aggregates (inflation, real exchange rate, and money velocity). In doing so, we develop the conceptual link between Bitcoin and monetary aggregates. We find strong and robust evidence that BPG leads to inflation growth, currency appreciation, and a reduction in money velocity. Our results have policy implications for other central banks in terms of achieving stability of the monetary system if BPG is indeed a concern for those countries.     

Assessing the Performance of ‘Inflation Targeting Lite’ Countries

This paper deals with what is referred to in the literature as the ‘Inflation Targeting Lite’ (ITL) countries. These are a category of emerging countries, whose main characteristics are that they are least developed and small economies that pursue IT. They use inflation targeting to define their monetary policy framework, but for a number of reasons they are not in a position to put top priority to IT in relation to other objectives. This paper deals with a set of ITL countries for which consistent data could be gathered, and for which a date for setting inflation targeting could be discerned. The object of the paper is to study the impact of IT on actual inflation and inflation expectations. We utilise intervention analysis to time series on inflation for a number of ITL countries, which have actually implemented IT. In doing so our main concern is to assess whether, due to the IT intervention, there has been a significant change in the trend corresponding to these series and the extent to which inflation rates have actually been ‘locked‐in’ at low levels after the implementation of IT. Two major results emerge. The first is that ITL countries have been successful in ‘locking‐in’ inflation rates. The second is that non‐IT countries have also been successful in terms of the ‘lock‐in’ effect. Our overall conclusion, then, is that other factors in addition to IT underpin the apparent success of the control of inflation.     

On the inflation-unit labor cost relation

This paper investigates the independent effects of wage and productivity growth on inflation utilizing Weintraub's Wage-Cost-Markup (WCM) model. An Alternative WCM model formed by considering asymmetry in adjustment speeds of wage and productivity growth on pricing produces long-run effects conforming to a priori expectations concerning the magnitude and equality of inflation's response to wage and productivity growth. The model also produces improved predictive performance when compared with an estimated equation relating inflation to current unit labor cost growth. The findings offer a price equation that can be employed in econometric models relating inflation to unit labor cost growth.     

Inflation inertia and credible disinflation

We develop a model of optimizing forward-looking staggered price setting where even fully credible disinflations display a delayed and gradual inflation response and significant output losses. There is a welfare trade-off between these output losses and the gains from smaller inflationary distortions. For reasonable parameter values disinflation improves welfare, and more so if it is phased in gradually. The pricing assumption of our model yields dynamics that are similar to models of sticky information, but its state space is much simpler, thereby allowing for the application of standard linearization methods.     

地方政府财政支出对中国通货膨胀的冲击效应研究——基于凯恩斯 AD - AS 视角

基于国家干预的凯恩斯 AD - AS 视角,主要对财政货币政策与通货膨胀之间的关系进行研究,并采用 1952—2010 年中国宏观经济数据进行实证分析,结果表明: ( 1) 长期内,地方财政支出的扩张是导致通货膨胀的关键性因素; 而中央财政支出的扩张却有利于控制通货膨胀; 不同层次的货币供应量对通货膨胀的冲击则并不显著; 除此之外,通货膨胀还受到消费者预期、人民币汇率、职工工资水平和原材料购进价格的正向影响。(2) 短期内,无论是中央抑或是地方财政支出都能对通货膨胀产生负向的冲击作用; 然而,货币供应量( M0、M1、M2) 却对通货膨胀起到了明显的助推作用,且 M0与通货膨胀具有双向的 Granger 因果关系。( 3) 新时期,财政货币当局不仅需要高度关注高通胀惯性对政策效果的影响,尤其应注重财政货币政策的多重目标分解、梳理及协调配合,而且要处理好反通胀、保增长、调结构之间困难而复杂的关系,寻求三者之间的有效"平衡点"。     

The valuation of inflation‐indexed and FX convertible bonds

This paper derives a valuation model of inflation‐indexed convertible bonds that incorporates the firm's stock price, inflation indexing and the firm's credit risk. The pricing of inflation‐indexed convertible bonds traded on the Tel‐Aviv Stock Exchange (TASE) was empirically tested by using a comprehensive database. The study is the first to empirically test the pricing of convertibles in emerging markets. It was found that the theoretical values for the bonds are, on average, 1.94% higher than the observed market prices. Unlike previous studies, it was found that the underpricing increases with the moneyness of the convertible. It was found that as the maturity lengthens, the underpricing increases. © 2008 Wiley Periodicals, Inc. Jrl Fut Mark 28:634–655, 2008     

我国综合性通货膨胀的预期与治理

本文以市场经济下的货币流通理论为指导,构建了我国自改革开放以来的通货膨胀模型,并采用计量经济学的一系列方法对模型进行了检验,实证结果表明:通货膨胀与消费、投资、财政赤字和制度转型等多个变量之间存在协整关系,但各变量对通货膨胀的贡献度具有明显差异,这为中央银行和政府部门采取差别性的宏观调控政策提供了有力依据。     

Macroeconomic Determinants of Investment under Inflation Targeting: Empirical Evidence from the Brazilian Economy

The use of interest rate as the main tool by which central banks implement inflation targets points to a strong link between private investment decisions and monetary policy. With the objective of contributing to the literature surrounding macroeconomic determinants of investment under inflation targeting, an empirical analysis through Generalized Method of Moments models for the Brazilian case is made. In a general way, the findings underscore the relevance of macroeconomic variables for the determination of investment. In particular, we find that success inflation targeting creates a stable macroeconomic environment that promotes private investment.     

两岸通货膨胀及其不确定性研究

基于两岸1983年1月～2011年12月的通货膨胀数据,应用EGARCH-M模型分析了大陆和台湾的通货膨胀不确定性,结果发现两岸通货膨胀不确定性均存在杠杆效应,正向冲击大于负向冲击,台湾更易受到外来冲击的影响,台湾通货膨胀及其不确定性关系符合Holland假说。格兰杰因果关系检验得出两岸通货膨胀与通货膨胀不确定性关系均符合Friedman-Ball假说,两岸通货膨胀之间、通货膨胀不确定性之间存在相互影响关系。     

Monetary Dynamics of Inflation in China

This paper investigates both the short‐run and the long‐run relationships between monetary growth and inflation in China between 1980 and 2010. We construct multivariate dynamic models based on Friedman’s quantity theory of money (but permitting money to be endogenous) and Meltzer’s monetarist model. The empirical results provide robust evidence that there is a bilateral causal relationship between monetary growth and inflation as well as between monetary growth and output growth. An indirect and implicit causal relationship between monetary growth and inflation is found through the asset inflation channel. There are also long‐run equilibrium relationships between money stock, price index and other relevant variables. The present paper further provides a historical exploration of the mechanism of the monetary dynamics of inflation in China over the underlying period. We conclude that the monetary growth rule is likely to be the most promising policy orientation for China to manage its inflation.     

How Has Globalisation Affected Inflation in China?

This paper investigates how globalisation has affected inflation in China. We estimated standard Phillips curve inflation equations and examined whether globalisation has affected the structure of inflation dynamics as captured by the Phillips curve. Empirical results suggest that the globalisation of the Chinese economy has changed the behaviour of inflation dynamics. In particular, the impact of domestic and global output gaps on domestic inflation in China has changed significantly since 1994. Before 1994, the domestic output gap was a major factor in driving domestic inflation. After 1994, however, the global output gap plays a significant and more important role in affecting domestic inflation. The finding implies that Chinese monetary authorities should specifically take into account the developments in global output in their monetary policymaking process.     

Dove or Hawk? Characterizing monetary policy regime switches in India

The past two decades have witnessed a worldwide move by emerging markets to adopt explicit or implicit inflation targeting regimes. A notable and often discussed exception to this trend, of course, is China which follows a pegged exchange rate regime supported by capital controls. Another major exception is India. It is not clear how to characterize the monetary regime or identify the nominal monetary anchor in India. Is central bank policy in India following a predictable rule that is heavily influenced by a quasi inflation target? And how has the monetary regime been affected by the gradual process of financial liberalization in India? To address these points, we investigate monetary policy regime change in India using a Markov switching model to estimate a time-varying Taylor-type rule for the Reserve Bank of India. We find that the conduct of monetary policy over the last two decades can be characterized by two regimes, which we term ‘Hawk’ and ‘Dove.’ In the first of these two regimes, the central bank reveals a greater relative (though not absolute) weight on controlling inflation vis-à-vis narrowing the output gap. The central bank however was found to be in the “Dove” regime about half of our sample period, focusing more on the output gap and exchange rate targets to stimulate exports, rather than moderating inflation. India thus seems to be following its own direction in the conduct of monetary policy, seemingly not overly influenced by the emphasis on quasi-inflation targeting seen in many emerging markets.