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.     

Uncovered Interest Parity: Cross‐Sectional Evidence

Uncovered interest parity (UIP) is estimated for short‐term horizons from one month to 12 months using a large number of cross‐sectional bilateral exchange rates. In contrast to conventional time‐series UIP, cross‐sectional UIP is examined with a single‐equation estimation and panel regression model estimation. The exchange rates analyzed here include a broad spectrum of countries: developed, developing, low‐inflation, and high‐inflation countries. Based on the empirical evidence, there does not appear to be a well‐publicized UIP puzzle for cross‐sectional UIP, and the slope estimates remain largely between zero and one throughout the sample periods, with a few exceptions. Evidence of UIP is more clear for low inflation countries than for high inflation countries. As interest rate maturity becomes longer from one month to 12 months, the UIP relationship becomes weaker.     

How Does Foreign Direct Investment Really Affect Developing Countries' Growth?

Two main contributions to literature on foreign direct investment (FDI) and economic growth are made in this paper. First, the paper examines the effect of FDI on economic growth for 44 developing countries using heterogeneous panel cointegration techniques that are robust to omitted variables and endogenous regressors. The main result is that FDI has, on average, a negative effect on growth in developing countries, but there are large differences in the effect across countries. Second, a general‐to‐specific model‐selection approach is used to systematically search for country‐specific factors explaining the cross‐country differences in the growth effects of FDI. The results suggest that the cross‐country heterogeneity in the growth effect of FDI can be explained mainly by cross‐country differences in freedom from government intervention, business freedom, FDI volatility, and primary export dependence.     

Inflation Targeting and Regional Inflation Persistence: Evidence from Korea

The adoption of a credible monetary policy regime such as inflation targeting is known to reduce the persistence of inflation fluctuations. This conclusion, however, is typically derived from aggregate inflation or sectoral inflation rates, not from regional inflation data. This paper studies the regional dimension of inflation targeting; that is, the consequences of inflation targeting for regional inflation persistence. Based on data for Korean cities and provinces it is shown that the adoption of inflation targeting leads: (i) to a fall in inflation persistence at the regional level; and (ii) to a reduction in the cross‐regional heterogeneity in inflation persistence. A factor model lends further support to the role of the common component, and, hence, monetary policy, for regional inflation persistence.     

CURRENCY AREAS AND MONETARY COORDINATION*

We integrate a monetary search model into open‐economy macro to analyze the gains from coordinating on inflation. Search frictions and local congestion lead to a determinate exchange rate between two currencies. Relative prices deviate from the law of one price. Because the deviations depend on the cross‐country differential in money growth, each country is tempted to inflate to exploit the deviations. Policy coordination reduces inflation and improves welfare for all countries. In contrast to traditional models, the gains from coordination continue to exist even after each country optimally sets a direct tax on the foreign use of the country's currency.     

What explains persistent inflation differentials across transition economies?1

We document that a persistent inflation differential has opened across different groups of transition economies since 2001, with the CIS‐West seeing particularly high outcomes. We consider a range of non‐monetary explanations discussed in the literature (economic structure, policy and institutions), and controlling for economic shocks, we find a role for political stability, as emphasized in previous cross‐country work. However, our results suggest that lagging internal and external liberalization have been the key disincentives to disinflation. Consequently, lower inflation targets would not be credible in the absence of stronger structural and monetary policy frameworks.     

Global Investment Environment of the Post‐Quantitative Easing World: The ‘new‐old’ and ‘new‐new’ Normal

Global markets since late 2007 are not ‘normal’, where normal means market conditions we would expect to observe going forward in the absence of any new economic shocks. Financial markets have been dominated by extraordinary central bank policies that were created to deal with challenging market conditions reflecting heightened risk aversion and illiquidity. Markets in the future will have some characteristics that look more like the market conditions observed in the pre‐crisis period, which I call the ‘new‐old normal’ and other conditions that differ from the past, which I call the ‘new‐new normal’. I first review what happened during the financial crisis in terms of developments in three asset classes, equities, fixed income and currencies, to place the forward‐looking view in proper context. Then the transition period from the quantitative easing (QE) era of exceptional monetary policy to post‐QE markets is discussed. Post‐transition, we will see some features of the post‐QE world that will resemble pre‐crisis market conditions, the ‘new‐old normal’ with higher policy interest rates, wider cross‐country interest differentials, lower cross‐asset return correlations and a resurgence of the importance of cross‐country differences in fundamentals in international investing. However, some features of the post‐QE investment environment will be unlike anything observed in the past: the ‘new‐new normal’ with reduced liquidity and more days of exceptionally large volatility and asset price moves due to regulatory effects resulting in a reduced ability of market‐makers to provide inventory buffers for counterparties and electronic trading venues that shut down trading in high volatility periods; low inflation; flatter yield curves; and emerging markets providing less opportunity for diversification gains as they converge to developed financial market characteristics.     

GROWTH EFFECTS OF INFLATION UNDER THE PRESENCE OF INFORMALITY

In this paper we build an endogenous growth model in which the informal economy is subject to a cash‐in‐advance constraint along with physical capital accumulation and consumption. In this setting, we find that inflation generally adversely affects long‐run growth. However; this effect strongly interacts with the size of the informal economy. Specifically, the negative effect becomes milder (and can even be positive) under the presence of a large informal economy. Moreover, using an annual cross‐country panel data set of 161 countries over the period 1950‐2010 we also provide some empirical support for the mechanism of our theory.     

Accounting for Cross‐Country Differences in Wealth Inequality

There is considerable cross‐country variation in levels of household wealth and in wealth inequality. This paper assesses the extent to which these differences can be accounted for by differences in the distributions of households' demographic and economic characteristics. A counterfactual decomposition analysis of micro data from five countries (Italy, U.K., U.S., Sweden and Finland) is used to identify the effects of characteristics on component wealth holdings, their value and their distribution. The findings of the paper suggest that the biggest share of cross‐country differences is not attributable to the distribution of household demographic and economic characteristics but rather reflect strong unexplained country effects.     

基于核心通货膨胀视角的 物价走势判定研究*

核心通货膨胀对于央行准确判定物价走势、更好实现稳定物价目标具有重要意义。本文采用广义动态因子模型与频谱分解技术测度的核心通货膨胀相比于CPI通胀率能更准确反映我国物价变动的周期特征与长期趋势,对于央行更合理地引导社会公众的通胀预期,实现物价稳定与产出稳定的动态平衡具有一定的参考价值。鉴于中国转型时期通胀因素的叠加性与复杂性,本文还提出金融宏观调控应综合考虑包括核心CPI、CPI在内的多种通货膨胀指标,在维持长期物价稳定的同时,兼顾物价的短期波动。     

Inflation Adjustment and Labour Market Structures: Evidence from a Multi‐country Study*

The impact of labour market structures on the response of inflation to macroeconomic shocks is analysed empirically. Results based on a 20‐country panel show that if labour market coordination is high, the effect on inflation of movements in unemployment, import prices, tax rates and productivity is dampened, both on impact and dynamically. In contrast, monopoly power in labour supply, measured by the percentage unionisation of the workforce, appears to amplify the response of inflation to its reduced‐form determinants. These findings are attributed to the behaviour of wages following movements in demand‐ and supply‐side conditions.     

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.     

Institutional Features of Schooling Systems and Educational Inequality: Cross‐Country Evidence From PIRLS and PISA

Educational opportunities determine the intergenerational mobility of human capital and affect the distribution of earnings on the labour market. This paper aims at explaining cross‐country differences in educational opportunities by features of schooling systems. The theoretical model predicts that a greater differentiation of the schooling system as indicated by streaming and a large share of private schools decreases educational opportunities while more instruction time increases educational opportunities. The empirical results that are based on a difference‐in‐differences estimation approach to control for country‐specific effects support these hypotheses.     

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.     

International Differences in Student Achievement: An Economic Perspective

Abstract. International comparisons reveal large cross‐country differentials in average student performance. Although there is considerable public debate about these differences, their sources are hardly identified. Using school, teacher and student data from the Third International Mathematics and Science Study (TIMSS), the present paper attempts to explain what causes between‐country gaps in mathematics test score distributions. Following a three‐pronged strategy of micro‐level and cross‐country regressions as well as bilateral country comparisons, we show how these gaps are explained by differences in school, teacher and student characteristics, or financial resources devoted to the school system. Institutional characteristics, such as competition between schools and the composition of the faculty can also help to understand international differences in student achievement.     

Cross‐Country Income Differences Revisited: Accounting for the Role of Intangible Capital

This paper develops a new intangible investment database that is consistent and internationally comparable for a set of 60 economies over the period 1995–2011. I find that over time a growing share of total investment consists of intangible assets, rather than investment in tangible assets, like machinery and buildings. Across countries, the level of economic development of a country is positively associated with its investment intensity in intangibles. By including intangible capital as an additional production factor, this paper finds that we can account for substantially more of the variation in cross‐country income levels. Depending on the assumptions regarding the output elasticities of factor inputs, the observed differences in intangible capital can account for up to 16 percentage points of the cross‐country income variation.     

MONETARY EXPANSION AND PRODUCTIVE PUBLIC EXPENDITURE IN A CASH‐IN‐ADVANCE ECONOMY*

Using a dynamic optimization model that incorporates a cash‐in‐advance constraint on both consumption and investment and productive public capital financed by a lump‐sum tax and seigniorage, this paper analyses the steady‐state effects of an increase in the inflation rate (the money growth rate) on output, private capital and welfare. The effects are negative at high inflation rates. However, at low inflation rates, the effects depend on the amount of lump‐sum tax revenue collected and therefore are either positive or negative.     

Currency Exposure to Downside Risk: Which Fundamentals Matter?

I study whether or not countries' macroeconomic characteristics are systematically related to their currencies' exposure to the downside market risk. I find that the currency downside risk is strongly associated with the local inflation rate, real interest rate and net foreign asset position. Currencies of countries with high inflation and real interest rates and negative net foreign asset position (debtor countries) are more exposed to the downside risk whereas currencies of countries with low inflation and real interest rates and positive net foreign asset position (creditor countries) exhibit “safe haven” properties. The local real interest rate has the highest explanatory power in accounting for the cross‐section of currency exposure to the downside risk. This suggests that the high currency exposure to the downside risk is a consequence of investments in high‐yield risky countries and flight from them in “hard times”.     

Productivity Trends in Europe: Implications for Real Exchange Rates, Real Interest Rates, and Inflation

The paper examines a long–run (neoclassical) framework in which differences in productivity growth across sectors and countries lead to inflation differentials. In a currency union, these inflation differentials imply cross–country differentials in real interest rates. The authors estimate the likely size of these differentials for European Union countries, discuss the potential costs of persistent inflation differentials, and comment on the conflicts they may cause within Economic and Monetary Union (EMU). The analytical framework is a variant of the Balassa–Samuelson "productivity hypotheisis," which relates sectoral productivity trends to trends in the relative price of home goods.     

Two Dimensions of Convergence: National and International Wage Adjustment Effects of Cross-border Outsourcing in Europe

The paper proposes a distinction between the two dimensions of convergence—within and between countries—when analyzing the impact of cross‐border outsourcing on real wage rates in the EU‐15 and the CEEC. In the CEEC, international outsourcing has not affected the adjustment of average real wage rates at the manufacturing industry level, but it has led to a closure of the gap within a typical EU economy. Between‐country convergence is likewise fostered by cross‐border outsourcing, supporting the hypothesis that outsourcing facilitates international factor price equalization.