Estimating Open Economy New Keynesian Phillips Curve for Korea

We estimate the open economy new Keynesian Philips curve (NKPC) to characterize the inflation dynamics of Korea. While recent studies show that the NKPC holds for the pre‐currency crisis period, the empirical evidence is inconclusive for the post‐crisis period. Has globalization increased the role of global factors relative to domestic factors? Can labor income share still serve as a good measure of real marginal cost following the structural break? To address these issues for the post‐crisis period, we use two types of open NKPC: the relative prices model and the incomplete pass‐through model. The estimation of both models indicates that the forward‐looking behavior is important, and its role is reinforced in an open economy specification. Both NKPC models also show that the external factors are more relevant inflation drivers than the domestic factors.     

Monetary Policy Implementation and Volatility Transmission Along the Yield Curve: The Case of Kenya

This paper analyses the degree to which volatility in interbank interest rates leads to volatility in financial instruments with longer maturities (e.g. T‐bills) in Kenya since 2012, year in which the monetary policy framework switched to a forward‐looking approach, relative to seven other inflation targeting (IT) countries (Ghana, Hungary, Poland, South Africa, Sweden, Thailand and Uganda). Kenya shows strong volatility transmission and high persistence similar to other countries in transition to a more forwardlooking monetary policy framework. These results emphasize the importance of a strong commitment to an interbank rate as an operational target and suggest that the central bank could reduce uncertainty in short‐term yields significantly by smoothing out the overnight interest rates around the policy rate.     

Assessing the performance of inflation targeting in East Asian economies

This paper examines the implementation and performance of inflation targeting (IT) in four East Asian emerging market economies: Indonesia, Korea, the Philippines, and Thailand. It also examines monetary policy in Malaysia, a country that has not adopted IT. The study estimates policy reaction functions to test the links between the adoption of IT and use of a monetary policy rule. The impulse responses of prices to a monetary policy shock are also estimated to identify monetary policy impacts on prices. The findings on the monetary policies of the five economies can be summarised as follows. Korea has taken an inflation‐responsive and forward‐looking policy stance under inflation targeting, which has had an effect on the stability of prices. Indonesia and Thailand have conducted inflation‐responsive but backward‐looking policy stances, which have had no impact in terms of price stabilisation. The Philippines (which adopted IT but under a pegged exchange rate regime) and Malaysia have neither followed inflation‐responsive rules nor had policy impacts in terms of controlling inflation.     

Inflation Targeting and the Pass‐through Rate in East Asian Economies

There has been serious debate regarding whether the inflation targeting (IT) framework for the emerging market economies has been an effective nominal anchor. Focusing on Korea, Thailand and the Philippines, this article aims to contribute to the debate by providing empirical evidence on a decline in the ‘pass‐through’ effect with IT adoption. Our main findings are as follows. First, under the IT framework, Korea has followed an inflation responsive rule in a forward‐looking manner, while Thailand has adopted the rule in a backward‐looking manner. Second, only Korea experiences a reduction in the pass‐through effect under IT adoption, thereby showing a linkage between the forward‐looking inflation responsive rule and the pass‐through effect. Finally, a test of the sensitivity of inflation expectations to external price shocks in Korea supports this linkage.     

Learning and Estimation of the New Keynesian Phillips Curve Models

The extant literature is split on the best measure of marginal cost in the New Keynesian Philips Curve, with the output gap and the labor share being the most commonly advocated proxy measures. Which one is the best measure? In this article, I assume that agents update their understanding and expectation period by period, a learning process. In terms of econometrics, I use a recursive Vector Autoregression approach and conduct a forecasting exercise that considers updating of information sets used for formation of expectation. I find that the traditional output gap measure is a more significant variable explaining the dynamics of the U.S. inflation rate, as compared with a measure of the labor income share. Furthermore, the role of the output gap cannot be replaced using lagged values of inflation. Instead, both the output gap and lags of the actual inflation rate are important determinants of inflation.     

An empirical evaluation of the 1986 Semiconductor Trade Arrangement

In the paper, we aim to empirically evaluate the extent to which the 1986 Semiconductor Trade Arrangement (STA) affected the Japanese producers’ behavior in the market for the 1 M Dynamic Random Access Memory (DRAM) chips. Based on the Euler equation of non-Japanese firms’ learning-curve optimization, we estimate the marginal cost function and then calculate Japanese price-cost margins by using nonparametric estimation. Our estimation results show that the price-cost margins of Japanese firms were set far above the learning-curve optimization margins but still lower than the marginal costs on average. Hence we can infer that the STA could not push the price above the average Japanese marginal cost but facilitate the Japanese firms to collude to set the price-cost margins by taking account of learning-by-doing effects. This empirical finding and no significant spillover effect are combined with other observations to imply that the STA might have enabled later-entering non-Japanese firms to rapidly expand their market shares and get a foot in the door of the R&D competition for new generational DRAM.     

Inflation Targeting in ASEAN‐10

The paper addresses the empirical question of whether economies that do not systematically target inflation (non‐inflation targeters) experience higher exchange rate volatility as compared with inflation targeters in 10 countries of the Association of Southeast Asian Nation (ASEAN) from 1990 to 2010. The paper examines the role of real exchange rate, exchange rate volatility and the reaction functions of central banks using dynamic panel estimation techniques. The results indicate that the output gap offers more useful information than the inflation gap in setting interest rates for inflation targeters, implying that the real term is more important than the nominal term. In turn, this suggests that an increase in interest rate can be wielded swiftly to reduce real gross domestic product and suppress inflation. The real exchange rate appears as a weaker determinant in setting interest rates for non‐inflation targeters. Inflation targeters experienced lower exchange rate volatility compared with non‐targeters in the ASEAN, which implies that implementation costs to their domestic economies may be marginally lower. Meanwhile, the non‐targeters follow a mixed strategy as both the inflation and real exchange rate are used as instruments to set the interest rates.     

Measuring the monetary policy stance of the People's bank of china: An ordered probit analysis

The People's Bank of China (PBC) has employed a range of different instruments in the implementation of its monetary policy over the past decades, so perhaps no single instrument would constitute an adequate representation of the monetary policy stance. We thus develop a new policy stance index, and examine it in an ordered probit model, which follows the studies by Gerlach (2004) and He and Pauwels (2008). The empirical results show that in a backward-looking model, monetary policy reacts to actual output growth; one the other hand, when deviations from trend levels are considered, the PBC concerns inflation most seriously. In a forward-looking model, when we examine the PBC's statements in its quarterly Monetary Policy Executive Report from 2001Q1 to 2010Q3, it seems that the PBC's assessment of the prospects for inflation plays a key role determining the PBC's monetary policy stance. Our conclusions suggest that the PBC is informally targeting inflation, although no explicit target has ever been announced to the public by the PBC.     

MEASURING THE WELFARE COST OF INFLATION IN SOUTH AFRICA

In this paper, we estimate the long‐run equilibrium relationship between money balance as a ratio of income and the Treasury bill rate for the period of 1965:02 to 2007:01, and in turn use the relationship to obtain welfare cost estimates of inflation. Using the Johansen technique, we estimate a log‐log specification and a semi‐log model of the above relationship. Based on the fits of the specifications, we decided to rely more on the welfare cost measure obtained under the log‐log money demand model. Our estimates suggest that the welfare cost of inflation for South Africa ranges between 0.34% and 0.67% of GDP, for a band of 3‐6% of inflation. Thus, it seems that the South African Reserve Bank's current inflation target band of 3‐6% is not too poorly designed in terms of welfare.     

Regional allocation of carbon dioxide abatement in China

This paper aims to identify which provinces will be allocated more (less) of a carbon dioxide reduction burden within China's pledge to reduce its carbon intensity at the Copenhagen conference. Using an extended Slacks-Based Measure (SBM) model incorporating an undesirable output, the CO₂ reduction potential and marginal abatement costs are estimated for 29 provinces over the period 1995–2007. The CO₂ Abatement Capacity Index (ACI) is constructed based on weighted equity and efficiency indexes. We find that there exists a large gap in potential reduction capability and marginal abatement cost among the eastern, middle and western regions. The eastern region has the least inefficient emission and the highest marginal abatement cost, while the western region has the largest potential reduction capability and the lowest marginal cost faced in reducing CO₂ emissions. The difference in potential CO₂ abatement among the provinces results from different industry structures, energy compositions and degrees of the openness of trade. The ACI ranking and the final allocation among provinces depend on the policy-makers' preferences regarding equity and efficiency.     

ON THE RAND: DETERMINANTS OF THE SOUTH AFRICAN EXCHANGE RATE

This paper is an econometric investigation of the determinants of the real value of the South African rand over the period 1984‐2007. The results show a relatively good fit. As always with exchange rate equations, there is substantial weight on the lagged exchange rate, which can be attributed to a momentum component. Nevertheless, economic fundamentals are significant and important. This is especially true of an index of the real prices of South African mineral commodities, which even drives out real income as a significant determinant. An implication is that the 2003‐2006 real appreciation of the rand can be attributed to the Dutch Disease. In other respects, the rand behaves like currencies of industrialised countries with well‐developed financial markets. In particular, high South African interest rates raise international demand for the rand and lead to real appreciation, controlling also for a forward‐looking measure of expected inflation and a measure of default risk or country risk.     

Money,Inflation and Adjustment Policy in Africa: Some Further Evidence

Abstract: In view of the explicit link between inflation and the rate of monetary expansion that is invariably incorporated into many macroeconomic adjustment programmes in Africa, this paper, using both cross-section and time series econometric analysis, provides some new empirical evidence on the relationship between money and inflation in Africa. It is shown that although, broadly speaking, the simple monetarist inflation model appears to hold when tested in cross-section equations covering several countries and averaged over several years, the same is generally not true for individual countries in time series analysis or in cross-section studies covering shorter time periods. In fact, the result of the analysis strongly suggest that factors other than the rate of monetary expansion have played an important role in determining short-run inflation trends in Africa. With respect to the implications of these findings for the conduct of current macroeconomic policy and in particular, given the apparently lesser role that ought to be assigned to monetary factors over the short run, the paper urges greater flexibility in deploying policy instruments towards inflation targets in individual African countries and cautions against the application of rules based on regional results in favour of those derived from country-specific findings. Résumé: Compte tenu du lien explicite entre inflation et taux d'expansion monetaire, auquel il est invariablement fait reference dans de nombreux pro-grammes d'ajustements macro-economique en Afrique, cet article, s'appuyant sur une analyse economique de donnees transversales et chronologiques fournit de nouvelles preuves empiriques des relations qui existent entre la monnaie et l'inflation en Afrique. On montre que, de facon generale, mkme si le simple modele monetariste d'inflation parait ktre valide lorsqu'on effectue des tests sur des equations transversales couvrant plusieurs pays et qu'on calcule sa moyenne sur plusieurs annees, il n'en est pas de mCme, pour les pays consideres isolement, dans l'analyse de series chronologiques ou dans les etudes transver-sales couvrant des periodes plus courtes. De fait, les resultats de l'analyse donnent fortement a penser que des facteurs autres que le taux d'expension monetaire ont joue un role important dansla determination des tendances inflationnistes a court terme en Afrique. En ce qui concerne les consequences de ces conclusions pour la conduite de la politique macro-economique actuelle et, en particulier, vu le role moins important, a ce qui semble, qu'il faudrait accorder court terme aux facteurs monetaires, l'article preconise une plus grande souplesse dans le deploiement de la panoplie des instruments de poli- tique economique pour atteindre les objectifs retenus pour le taux d'inflation dam les differents pays africains et met en garde contre l'application de regles fondees sur les resultats regionaux en faveur de celles elaborees a partir de conclusions propres aux pays.     

通胀率动态与通胀惯性度量

本文从通胀惯性的理论模型出发,构建无限状态Markov区制转移的计量模型,实现对通胀惯性的有效度量。对美国通胀惯性的实证分析,证实货币政策工具的频繁使用会付出通胀惯性的代价,暴露出其单一目标货币政策框架的缺陷。我国央行的调控也已经对市场利率形成了显著的传导作用,谨慎地使用货币政策工具,使我国的通胀惯性在被货币政策短暂影响后,得以有效恢复。这表明坚持实行多目标、多手段与宏观审慎政策相结合的调控模式,对维护经济环境稳定与长期发展的重要性。十国通胀惯性的度量结果与对比分析,进一步佐证了本文观点。     

Will the Sarb always Succeed in Fighting Inflation with Contractionary Policy?

The conventional view is that a monetary policy shock has both supply‐side and demand‐side effects, at least in the short run. Barth and Ramey show that the supply‐side effect of a monetary policy shock may be greater than the demand‐side effect. We argue that it is crucial for monetary authorities to understand whether an increase in expected future inflation is due to supply shocks or demand shocks before applying contractionary policy to forestall inflation. We estimate a standard New Keynesian dynamic stochastic general equilibrium model with the cost channel of monetary policy for the South African economy to show that whether the South African Reserve Bank should apply contractionary policy to fight inflation depends critically on the nature of the disturbance. If an increase in expected future inflation is mainly due to supply shocks, the South African Reserve Bank should not apply contractionary policy to fight inflation, as this would lead to a persistent increase in inflation and a greater loss in output. Our estimation results also show that with a moderate level of cost‐channel effect and nominal rigidities, a New Keynesian dynamic stochastic general equilibrium model with the cost channel of monetary policy is able to mimic the price puzzle produced by an estimated vector autoregressive model.     

Marginal q,Tobin's q,Cash Flow,and Investment

Many studies of the determinants of investment use Tobin's q to control for the investment opportunities of a firm. Tobin's q roughly measures the average return on a firm's capital anticipated by the market. More relevant for investment decisions, however, is the marginal return on capital. In this paper we estimate investment and research and development (R&D) equations using a measure of marginal q. We use marginal q to identify the existence of cash constraints and managerial discretion and as a separate explanatory variable. For a sample of 560 U.S. firms observed over the 1977-1996 period we present evidence confirming the existence of both cash constraints in some companies and managerial discretion in others.     

Output-Inflation Trade-Off at Near-Zero Inflation Rates

The purpose of this paper is to provide new evidence about the cost of near-zero inflation using Japanese data. We test the hypothesis that the short-run Phillips curve becomes flatter as the rate of inflation approaches zero. In implementing the test, we pay special attention to how to control for other factors affecting the rate of inflation. First, we use the skewness of the distribution of relative-price changes as a measure of supply shocks. Second, we use information contained in the cross-prefecture Phillips curve to control for changes in the expected rate of inflation. Through a series of empirical analyses, we find evidences consistent with the hypothesis. In particular, we find that the estimated slope in the 1990s is smaller than before. J. Japan. Int. Econ., December 2000, 14(4), pp. 304–326. Research and Statistics Department, Bank of Japan and Institute of Economic Research, Hitotsubashi University. Copyright 2000 Academic Press.Journal of Economic Literature Classification Numbers: E31, E50     

On Determinacy and Learnability in a New Keynesian Model with Unemployment

We analyse determinacy and stability under learning (E‐stability) of rational expectations equilibria in a new Keynesian model of inflation and unemployment, where labour market frictions due to costs of hiring workers play an important role. We derive results for alternative specifications of monetary policy rules and alternative values of hiring costs as a percentage of gross domestic product. We find that in general the region of indeterminacy and E‐instability in the policy space increases with hiring costs. Thus, higher hiring costs – consistent with European and South African “sclerotic” labour market institutions – seem to play an important part in explaining inflation and unemployment instability. Moreover, under lagged data‐based rules, the area where monetary policy delivers both determinacy and E‐stability shrinks. These rules also perform worse according to these two dimensions when hiring costs go up. Finally, under expectations‐based rules an additional explosive region is introduced. For South Africa, a rule based on current data – not unlike the original Taylor rule – works better than a forward‐looking rule.     

IS THERE AN ASYMMETRIC BEHAVIOUR IN AFRICAN INFLATION? A NON‐LINEAR APPROACH

In this paper we test the inflation persistence hypothesis as well as model the long‐run behaviour of inflation rates in a pool of African countries using a non‐linear framework. In order to do so, we rely on unit root tests applied to non‐linear models and fractional integration. The results show that the hypothesis of inflation persistence does not hold empirically for most of the countries. In addition, the estimated models (logistic smooth transition autoregressions) are stable in the sense that the variable tends to remain in the regime (low inflation or high inflation) once reached, and changes between regimes are only achieved after a shock. The results also indicate that the effects of the shocks on inflation tend to die out; exogenous factors, i.e. supply shocks and inertia may be causing this outcome, as they play a substantial role in the determination of the inflation rates for our selected African countries.     

Credit Ratings and CEO Risk‐Taking Incentives

This study examines the sophistication of rating agencies in incorporating managerial risk‐taking incentives into their credit risk evaluation. We measure risk‐taking incentives using two proxies: the sensitivity of managerial wealth to stock return volatility (vega) and the sensitivity of managerial wealth to stock price (delta). We find that rating agencies impound managerial risk‐taking incentives in their credit risk assessments. Assuming other things equal, a one standard deviation increase in vega (delta) will lead to an approximately one‐notch (two‐notch) rating downgrade. In addition, we evaluate the significance of credit ratings in the design of CEO compensation. Our findings suggest that rating‐troubled firms will gear down managerial incentives of risk seeking. In particular, other things equal, a rating downgrade to the lower edge of the investment category (i.e., BBB?) in the immediate prior year will bring about an approximately 51 percent reduction of vega incentive from options newly granted to the CEO in the current year. However, we find no evidence that firms' rating concerns significantly affect delta. Given the significance of credit ratings in the marketplace and their close connection to accounting, the findings of the current study advance our understanding, not only of how sophisticated rating agencies are in incorporating forward‐looking information (i.e., vega and delta) into risk assessments, but of how influential the raters are in changing firms' compensation policies. The findings also have implications on the role of accounting in constraining excessive managerial risk taking with improved disclosures on managerial compensation.     

What to Aim for? The Choice of an Inflation Objective when Openness Matters

Inflation targeting countries generally define the inflation objective in terms of the consumer price index. Studies in the academic literature, however, reach conflicting conclusions concerning which measure of inflation a central bank should target in a small open economy. This paper examines the properties of domestic, CPI, and real-exchange-rate-adjusted (REX) inflation targeting. In one class of open economy New Keynesian models there is an isomorphism between optimal policy in an open versus closed economy. In the type of model we consider, where the real exchange rate appears in the Phillips curve, this isomorphism breaks down; openness matters. REX inflation targeting restores the isomorphism but this may not be desirable. Instead, under domestic and CPI inflation targeting the exchange rate channel can be exploited to enhance the effects of monetary policy. Our results indicate that CPI inflation targeting delivers price stability across the three inflation objectives and will be desirable to a central bank with a high aversion to inflation instability. CPI inflation targeting also does a better job of stabilizing the real exchange rate and interest rate which is an advantage from the standpoint of financial stability. REX inflation targeting does well in achieving output stability and has an advantage if demand shocks are predominant. In general, the choice of the inflation objective affects the trade-offs between policy goals and thus policy choices and outcomes.