THE TIME‐SERIES PROPERTIES OF UK INFLATION: EVIDENCE FROM AGGREGATE AND DISAGGREGATE DATA

This paper contrasts the time‐series properties of aggregate and disaggregate UK inflation. While aggregate inflation is found to be non‐stationary, unit root rejection frequencies are increasing when we use more disaggregate data. Structural break analysis suggests that structural shifts in monetary policy could alter inflation persistence. Additionally, panel evidence indicates that the unit root hypothesis can be rejected for sectoral inflation rates. Finally, we compare the persistence properties of UK inflation, finding statistically significant differences between aggregate and disaggregate series. Our analysis suggests that aggregation matters, which has important implications for econometric analysis and the conduct of monetary policy.     

A REVISIT TO THE STATIONARITY OF OECD INFLATION: EVIDENCE FROM PANEL UNIT‐ROOT TESTS AND THE COVARIATE POINT OPTIMAL TEST*

This paper re‐examines the stationarity of inflation rates in 19 Organisation for Economic Cooperation and Development countries with the use of cross‐sectional information. We employ the panel unit‐root tests that allow for cross‐sectional dependency and the covariate point optimal test. These tests have high power in common due to the exploitation of cross‐sectional information, and they can assist mutually to draw a concrete conclusion on inflation dynamics for all series in the panel. Our empirical results show that allowing for cross‐sectional dependency rejects the null hypothesis that all series in the panel have a unit root, implying that there is at least one stationary series in the panel. With the help of the results of the covariate test, we can distinguish the panel into a group of stationary and a group of non‐stationary series. For robustness, the two groups of series are re‐confirmed by the panel tests. Our results reveal evidence of mean reversion in inflation for 15 of 19 countries, which is significantly stronger as compared to that obtained by the state‐of‐the‐art univariate unit‐root tests.     

THE MISSING LINK BETWEEN INFLATION UNCERTAINTY AND INTEREST RATES

In the literature, there is no consensus about the direction of the effects of inflation uncertainty on interest rates. This paper states that such a result may stem from differentiation in the sources of the uncertainties and analyzes the effects of different types of inflation uncertainties on a set of interest rates for the UK within an interest rate rule framework. Three types of inflation uncertainties – impulse uncertainty, structural uncertainty and steady‐state uncertainty – are derived by using a time‐varying parameter model with a Generalized Autoregressive Conditional Heteroskedasticity specification. It is shown that the impulse uncertainty is positively and the structural uncertainty is negatively correlated with the interest rates. Moreover, these two uncertainties are important to explain short‐term interest rates for the period of inflation targeting era. However, this time, the impulse uncertainty is negatively and the structural uncertainty is positively correlated with the overnight interbank interest rates, which is consistent with the general characteristic of the inflation targeting regimes. Lastly, the evidence concerning the effect of the steady‐state inflation uncertainty on interest rates is not conclusive.     

Selecting Your Inflation Targeters: Background and Performance of Monetary Policy Committee Members

Abstract. This paper starts by describing the composition of monetary policy committees (MPCs) in inflation‐targeting and non‐targeting countries. The experience of MPC members on their inflation performance is then compared, opposing inflation targeters with non‐targeters. Our sample covers the major Organization for Economic Cooperation and Development countries, in the period 1999–2008. Our results first show that MPCs are different in inflation‐targeting (versus non‐targeting) countries. They also reveal that policy‐makers' backgrounds influence inflation, and that the influence of MPCs' experience is much greater in inflation‐targeting countries, while size effects are more important for committees that do not target inflation.     

RIGHT ON TARGET: EXPLORING THE FACTORS LEADING TO INFLATION TARGETING ADOPTION

This paper examines which economic, fiscal, external, financial, and institutional characteristics of countries affect the likelihood that they adopt inflation targeting (IT) as their monetary policy strategy. We estimate a panel binary response model for 60 countries and two subsamples consisting of Organization for Economic Cooperation and Development (OECD) and non‐OECD countries over the period 1985–2008. The findings suggest that past macroeconomic performance of a country, its fiscal discipline, exchange rate arrangements, as well as the structure and development of its financial system have a significant impact on the likelihood to adopt IT. However, the factors leading to IT adoption differ significantly between OECD and non‐OECD countries. (JEL E42, E52)     

INFLATION TARGETERS IN PRACTICE: A LUCKY LOT?

Some observers have attributed the success of inflation targeters in reducing inflation to the global disinflation of the 1990s. As a result, inflation targeting countries have been considered to be a lucky lot. One key policyimplication of that is that if the international environment becomes again hostile to low inflation in the future, inflation targeting will prove to have been a mere fad. This article views inflation targeting not just as a rule but as a framework for the conduct of monetary policy, and it argues that currently available analyses of the experience of inflation targeting countries have serious weaknesses. One weakness is that those studies have not taken into account that regime changes may alter the quantitative and qualitative interaction among small, open economies and the rest of the world. Another weakness is that those studies have not recognized that the extraction of common trends and cycles is contingent on the nature of the monetary policy regime. It is likely that inflation targeting frameworks may imply a new beneficial trend in monetary policy making. This suggests that if the international environment becomes again hostile to low inflation in the future, an inflation targeting framework may become a viable alternative to a central bank that remains committed to price stability.     

THE IMPACT OF INFLATION ON PROPERTY CRIME

Using U.S. data from 1950 to 2010, we analyze to what extent inflation raises the incidence of property crime. To match our theoretical predictions, we consider different types of property crime (larceny, burglary, motor vehicle theft, and robbery) and broad and narrow definitions of inflation separately. We control for the state of the business cycle and demographic changes over time explicitly. Unobserved or difficult‐to‐measure determinants of property crime are captured through a stochastic‐trend specification within a state‐space framework. We find a robust statistical link between inflation and each of the four property crime rates. Our findings are robust to alternative definitions of inflation and the inclusion or exclusion of different control variables. In terms of policy, our findings suggest that monetary policy that creates inflation has costly spillover effects. (JEL J10, J11)     

Does money have a role in the inflation process? Evidence from Australia

Inflation, defined as a sustained increase in the price level, is considered a monetary phenomenon, as it can be explained within the framework of money‐demand and money‐supply relationships. In the extant literature, money growth is shown to remain causally related to inflation across countries and over time, irrespective of the exchange rate regime and stability of the money‐demand function. Nevertheless, emerging literature suggests a diminishing role of money in the conduct of monetary policy for price stability, especially under inflation targeting. Monetary policy in Australia under inflation targeting since 1993 is an example of policy that denies a relationship between money growth and inflation. The proposition that money does not matter insofar as inflation is concerned seems odd in both theory and the best‐practice monetary policy for price stability. This paper uses annual data for the period 1970–2017 and quarterly data for the period 1970Q1–2015Q1. It deploys both the Johansen cointegration approach and the autoregressive distributed lag (ARDL) cointegration approach to investigate for Australia whether money, real output, prices and the exchange rate (non‐stationary variables) maintain the long‐run price‐level relationship that the classical monetary theory suggests in the presence of such stationary variables as the domestic and foreign interest rates. As expected, the empirical findings for Australia are consistent with the classical long‐run price‐level relationship between money, real output, prices and the exchange rate. The error‐correction model of inflation confirms the presence of a cointegral relationship among these variables; it also provides strong evidence of a short‐run causal relationship between money supply growth and inflation. On the basis of a priori theoretical predictions and empirical findings, the paper draws the conclusion that the monetary aggregate and its growth rate matter insofar as inflation is concerned, irrespective of the strategy of monetary policy for price stability.     

How credible is inflation targeting in Asia? A quantile unit root perspective

This article examines the dynamic behavior of the inflation rate for eight Asian countries using a quantile unit root test. We advocate a three-way definition of inflation targeting based on perfect, imperfect and zero credibility and advance the analysis by incorporating a fully-fledged adoption of inflation targeting. In doing so, we offer new insights by showing that the credibility of inflation targeting and the alternative monetary policy frameworks in Asia are imperfect, except for Malaysia and South Korea under a fully-fledged adoption of inflation targeting. In contrast to past studies that focus on the mean-reversion in inflation rates, we also consider trend-reversion and find that Asian inflation targeting countries have been building up their monetary policy credibility more than the non- inflation targeting countries in terms of a faster rate of decline in inflation rate changes. Our results generally indicate the presence of mean reversion at the lower quantiles only. Where stationarity is present, we find evidence of a varied speed of adjustment process across the quantiles. Finally, we determine the threshold levels whereby inflation becomes stationary and demonstrate that Asian inflation rates generally display stationary behavior during periods of inflation declining or slowing down.     

ARE LONG‐TERM INFLATION EXPECTATIONS WELL‐ANCHORED? EVIDENCE FROM THE EURO AREA AND THE UNITED STATES

This paper analyses the stability of long‐term inflation expectations and uncertainty, based on their sensitivity to innovations to observed inflation, short‐ and medium‐term forecast news. News is defined in a subjective sense and derived from revisions to shorter‐term fixed‐target forecasts. The assessment tests for presence of non‐linear effects, including regime changes during disinflation in the USA in the 1990s and the recent financial crisis. Stability is also investigated in terms of level evolution, based on a structural non‐linear and non‐Gaussian learning model to uncover the presence of a common trend underlying the long‐term dynamics of inflation, individual expectations, and uncertainty.     

OPTIMAL MONETARY POLICY WITH THE STICKY INFORMATION MODEL OF PRICE ADJUSTMENT: INFLATION OR PRICE‐LEVEL TARGETING?

I investigate the optimal monetary policy in a New Keynesian macroeconomic framework with the sticky information model of price adjustment. The model is solved for optimal policy, and welfare implications of three alternative monetary policy regimes under this optimal policy are compared when there is a cost‐push shock to the economy. These monetary policy regimes are the unconstrained policy, price‐level targeting and inflation targeting regimes. The results illustrate that optimal policy depends on the degree of price stickiness and the persistence of the shock. Inflation targeting emerges as the optimal policy if prices are flexible enough or the shock is persistent enough. However, the unconstrained policy or price‐level targeting might be preferable to inflation targeting if prices are not very flexible and the shock is not very persistent. The results also show that as prices become more flexible, the welfare loss usually gets bigger.     

UK INFLATION: PERSISTENCE, SEASONALITY AND MONETARY POLICY

In the light of the changes to UK monetary policy since the early 1980s, we study the existence and nature of changes in the properties of retail price inflation over this period. A feature of our analysis is the attention paid to the marked seasonal pattern of monthly UK inflation. After taking account of seasonality, both univariate and Phillips curve models provide strong evidence of changes in the level and persistence of inflation around the end of 1992, at the time of the introduction of inflation targeting. Indeed, all models point to the effective disappearance of inflation persistence after this date, implying that constant-parameter models estimated using both pre- and post-inflation targeting data periods should be treated with considerable caution.     

MONEY AND INFLATION IN INDIA: EVIDENCE FROM P‐STAR MODEL

This study uses P‐star model to examine the role of money in explaining inflation in India. In particular, we compare the performance of traditional Phillips curve approach against P‐star model in forecasting inflation. Moreover, the study estimates P‐star model using the alternative measures of money such as simple sum and Divisia M3, to examine the relevance of aggregation theoretic monetary aggregates in explaining inflation. The empirical results indicate that P‐star model with real money gap has an edge over traditional Phillips curve approach in forecasting inflation. More importantly, we found that the P‐star model estimated with Divisia real money gap performs better than its simple sum counterpart. These empirical findings suggest that the changes in real money gap play a crucial role in explaining inflation in India.     

On the Effects of Inflation Shocks in a Small Open Economy

The effects of monetary policies remain always an important topic in macroeconomics. In the literature (closed and open economy), there is no theoretical as well as empirical consensus regarding the effects of monetary policies. In this paper we examine the real effects of inflation in an open economy. Australia is a classic example of a small open economy and is known to exercise inflation targeting. Using quarterly data from Australia and employing vector autoregressive (VAR) analysis, we provide evidence that inflation, both in the short and long run, negatively affects durable and non‐durable consumption and investment, and has a positive effect on the current account. Further, we show that consumption of durable goods is more sensitive than the consumption of non‐durables during the initial periods following inflationary shocks.     

INFLATION PERSISTENCE AND FLEXIBLE PRICES*

If the central bank follows an interest rate rule, then inflation is likely to be persistent, even when prices are fully flexible. Any shock, whether persistent or not, may lead to inflation persistence. In equilibrium, the dynamics of inflation are determined by the evolution of the spread between the real interest rate and the central bank's target. Inflation persistence can be characterized by a vector autocorrelation function relating inflation and output. This article shows that a flexible‐price, general‐equilibrium business cycle model with money and a central bank using an interest rate target can account for such inflation persistence.     

通货膨胀问题国外研究进展与评述

20世纪70年代以来通货膨胀的频发,成为严重困扰世界各国经济运行的主要难题之一,引发了众多国外学者对通货膨胀的广泛关注以及从宏观层面到微观基础层面的深入研究。本文主要从通货膨胀的福利成本、通货膨胀的不确定性、持续性和通货膨胀目标制四个方面入手,着重回顾与评论20世纪90年代尤其是21世纪以来的国外学者研究通货膨胀问题的成果,以期在把握通货膨胀问题研究的进展中,总结治理经验与合理借鉴应对政策。     

Impact of Market‐based Policies and External Fiscal Discipline on Ghana's Inflation

This study investigates the impact of liberalization of the forex exchange and financial sectors and external prudent fiscal management in Côte d'Ivoire on Ghana's inflation. We find that, in the financial sector, there is a case for liberalization, in terms of lowering inflation. However, a quasi‐liberalized system in the sector proves to have a greater potential to reduce inflation in Ghana. In the exchange market, non‐liberalization has the edge over liberalization in reducing inflation in Ghana. However, a quasi‐liberalized system in the sector has a greater potential to lower inflation. There is evidence of a strong intra‐continental transfer of inflation from Côte d'Ivoire to Ghana, but this transmission has been significantly moderated downwards by the implementation of prudent fiscal management in Côte d'Ivoire. We also find that monetary targeting and inflation targeting have deflationary effects, but we cannot claim that this has significantly reduced inflation. The implication of the result is that; a system that achieves the correct balance between the market mechanism and command system in the exchange and financial sectors has a greater potential to lower inflation in Ghana. Also, domestic monetary policies should not only be anchored on internal factors.     

THE EVOLUTION OF INFLATION AND UNEMPLOYMENT: EXPLAINING THE ROARING NINETIES

This paper analyses the relation between US inflation and unemployment from the perspective of ‘frictional growth,’ a phenomenon arising from the interplay between growth and frictions. In particular, we focus on the interaction between money growth and nominal frictions. In this context we show that monetary policy has not only persistent, but permanent real effects, giving rise to a long‐run inflation‐unemployment tradeoff. We evaluate this tradeoff empirically and assess the impact of productivity, money growth, budget deficit, and trade deficit on the US unemployment and inflation trajectories during the nineties.     

AVOIDING THE INFLATION TAX*

I study the effects of inflation on the purchasing behavior of buyers in the Lagos–Wright monetary economy. The standard framework fails to capture the long‐standing intuition that when inflation increases, agents try to spend their money holdings speedily. I propose a simple, realistic extension in which buyers can rebalance their money holdings only sporadically (i.e., not every period). I show that, in such a case, higher inflation can induce buyers to spend their money faster by frontloading their consumption and searching more intensively for transactions. These trade distortions have, traditionally, been associated with the economic costs of inflation.     

THE FORMATION OF INFLATION PERCEPTIONS: SOME EMPIRICAL FACTS FOR EUROPEAN COUNTRIES

This paper investigates how households form their perceptions of consumer price inflation. Using data from the harmonized European Union consumer survey, we find that inflation perceptions are inefficient and highly heterogeneous, yet contemporaneously related to the actual rate of inflation. Consequently, we estimate how often households update their beliefs using Carroll's (2003) epidemiological model. Our results indicate that inflation perceptions are generally less responsive to new information than expectations. Unlike studies on expectations, we cannot confirm that a constant fraction of the population updates information every month. Also, the cross‐sectional heterogeneity of perceptions is higher than implied by infrequent updating alone.