An equilibrium foundation of the Soros chart

The most prominent characteristic of the Japanese yen/U.S. dollar nominal exchange rate in the post-Plaza Accord era is near random-walk behavior sharing a common stochastic trend with the two-country monetary base differential augmented with excess reserves. In this paper, we develop a simple two-country incomplete-market model equipped with domestic reserve markets to structurally investigate this anecdotal evidence known as the Soros chart. In this model, we theoretically verify that a market discount factor close to one generates near random-walk behavior of an equilibrium nominal exchange rate in accordance with a permanent component of the augmented monetary base differential as an economic fundamental. Results of a Bayesian posterior simulation with post-Plaza Accord data of Japan and the United States plausibly support our model as a data generating process of the Japanese yen/U.S. dollar exchange rate. The model identifies the two-country differential in money demand shocks as the main generator of the sharp depreciation of the Japanese yen against the U.S. dollar under the Abenomics. We discuss data evidence that the identified money demand shocks are tightly correlated with longer-term interest rate differentials between the two countries.     

Has International Financial Integration Increased?

This paper compares the behavior of real interest rate differentials across the major countries under the Bretton Woods regime and the regime of floating exchanges that replaced it. The primary object is to investigate both the extent of market integration and its changes over time. For all fifteen possible country pairs real interest differentials are mean reverting, and in two-thirds of these cases indistinguishable from zero statistically. For all country pairs on average and for most such pairs individually, moreover, the estimated differentials are not appreciably different in absolute value than the differentials that we estimate for various money-market rates within the United States. Additional evidence points to a narrowing of differentials under floating rates over time and an increase in speeds of convergence.     

Capital controls and covered interest parity in the EU: Evidence from a panel-data unit root test

Capital Controls and Covered Interest Parity in the EU: Evidence from a Panel-Data Unit Root Test. - This paper examines whether the abolition of the remaining capital controls in the EU during 1990 has facilitated the achievement of onshore covered interest parity with respect to Germany. We test for unit roots in covered interest differentials. However, we employ the new methodology of pooling our data and performing a unit root test based on a panel data set. Our results suggest that the period characterized by the absence of capital controls has not facilitated the achievement of covered interest parity. Indeed, evidence in favour of covered interest parity is strongest for the period preceding 1990.     

New Keynesian Explanations of Cyclical Movements in Aggregate Inflation and Regional Inflation Differentials

What determines the cyclical behavior of aggregate inflation and regional inflation differentials? The answer has strong implications for monetary policy and in Europe for the Stability and Growth Pact. In the United States, inflation rates move pro-cyclically, and across the Euro Area, inflation differentials are positively correlated with growth differentials. This suggests that demand shocks are the primary determinants of the cyclical behavior of aggregate inflation and regional inflation differentials. In this paper, we discuss New Keynesian explanations of these correlations, and we argue that demand shocks are either missing or inadequately modeled in the in typical New Keynesian model.     

Risk Structure of Postbellum U.S. Deposit Rates

This article examines national bank deposit rates for evidence on the sources of the large regional interest rate differentials that persisted in the United States throughout the nineteenth and early twentieth centuries. It uses an options-based model to establish that deposit rates should have varied systematically with bank asset return volatility, capitalization, and liability structures. The model's predictions are borne out in regressions using data from 1889, 1894, and 1899. The results add to the evidence that risk was at the heart of the regional interest rate differentials of the postbellum era.     

Public Revenue‐Expenditure Nexus in South Africa: Are there Asymmetries?

This paper re‐examines the government revenue and expenditure relationship in South Africa using Enders and Siklos' Threshold adjustment and Granger causality tests. The paper allows for structural breaks in the unit root and cointegration tests. The results indicate the absence of any asymmetries in both the threshold autoregression and momentum threshold autoregression specifications of adjustments in the South African's budgeting process. The estimated symmetric error‐correction models provide support for the fiscal synchronization hypothesis of government revenues and expenditures for long‐run and short‐run dynamic equilibrium. These findings indicate that the South African fiscal authorities should try to maintain or even improve the control of their fiscal policy instruments to sustain the prudent budgetary process.     

A nonlinear pairwise approach for the convergence of UK regional house prices

We examine the long-run convergence across 12 UK regional house prices using a pairwise approach. The time period spans from 1983:1 to 2012:4. Linear, nonlinear and asymmetric unit root tests are considered for assessing the stationarity of all possible pairs. The test statistic for convergence is based on the percentage of unit root test rejections across all regional house price differentials. The percent of the pairs that reject the null increase from 6% in the linear ADF case to 53% for the nonlinear unit root. Probit analysis reveals that house price differentials in the South are more likely to be stationary and as a result tend to converge more compared to the North.     

Forecasting the Yen/U.S. Dollar exchange rate: Empirical evidence from a capital enhanced relative PPP-based model

This study uses a relative purchasing power parity (PPP) model based on price indexes (consumer, CPI or traded-goods price indexes, TPI), interest rate differentials, and a linear forecasting technique to determine the horizon over which such a model outperforms a random walk in forecasting the Yen/U.S. Dollar exchange rates out-of-sample. The results improve if one adjusts a simple CPI-based PPP-model by interest rate differentials, while the best results are obtained using a TPI-based PPP-model. For example, the TPI-based model, adjusted by interest rate differentials, is able to statistically significantly outperform the pure random walk starting at forecast horizons of 1 month.     

Non-linearities in Real Interest Rate Parity: Evidence from OECD and Asian Developing Economies

Abstract

This paper investigates the validity real interest rate parity (RIP) for a sample of 19 OECD and Asian developing economies. The distinction of this paper is that we exploit both linearity and non-linear unit root tests as advocated by Dufrénot et al. (Applied Economics, 38, pp. 203–229, 2006) to validate the parity. The major finding are: (i) the alignments from real interest rate differentials (RIDs) are corrected in a non-linear fashion and that the adjustments is asymmetric in both size and speed; (ii) that RIP holds for the developed and developing countries; and (iii) the empirical results are invariant with respect to the US, Japan or Germany as the centre country.     

Excess returns in the EMS: Do “weak” currencies still exist after the widening of the fluctuation bands?

Excess Returns in the EMS: Do “Weak” Currencies Still Exist after the Widening of the Fluctuation Bands? — The authors analyze the issue of how the different institutional arrangements within the ERM have affected the behaviour of excess returns on DM-denominated assets and contribute to the debate on the future of the EMS. Their approach consists in estimating simple forecasting models for interest differentials, and testing for the presence of significant (negative) mean prediction errors. The comparison between predicted and actual outcome indicates that the new system might be characterized by the virtual disappearance of “weak” currencies, as the widening of the bands has removed the expectations of realignments which resulted in high interest differentials.     

Non-linear Co-integration between Nominal Interest Rates and Inflation: An Examination of the Fisher Hypothesis for Asian Countries

Abstract

This paper examines the long-run relationship between nominal interest rates and inflation for a group of Asian countries over the period February 1973–April 2007. We argue that the empirical failure to find evidence supporting the Fisher effect in previous studies may be attributed to the presence of non-linearities in the long-run relationship between nominal interest rates and inflation. We present evidence that the Fisher relation contains significant logistic smooth transition autoregression (LSTAR)-type non-linearity. This type of non-linearity is consistent with inflation targeting and the opportunistic behavior of policy-makers. Applying a non-linear unit root test to the residuals obtained from the Fisher relation decisively rejects the null hypothesis of a unit root against the alternative of non-linear but globally stationary in all the cases.     

Capital Inflows Problem in Selected Asian Economies in the 1990s Revisited: The Role of Monetary Sterilization*

This paper develops a simple model to examine the reasons behind the capital inflow surges into selected Asian economies in the 1990s prior to the financial crisis of 1997–98. The analytical model shows that persistent uncovered interest differentials and consequent capital inflows may be a result of complete monetary sterilization, perfect capital mobility, sluggish response of interest rates to domestic monetary disequilibrium, or some combination of all three. Using the model as an organizing framework, the paper undertakes a series of related simple empirical tests of the dynamic links between international capital flows, the extent to which they are sterilized and uncovered interest rate differentials in the five crisis‐hit economies (Indonesia, Korea, Malaysia, the Philippines and Thailand) over the period 1990:1–1997:5.     

The term structure of Japanese interest rates:: The equilibrium spread with asymmetric dynamics

This paper examines the dynamic adjustment to long-run relationship between Japanese interest rates of different maturities. We employ a new estimation methodology that permits threshold and the momentum-threshold adjustment towards equilibrium. The results support the expectations hypothesis of the term structure of interest rate using Japanese interest rates. As in the case of the United States, it shown that the error-correction process is best estimated as asymmetric. J. Japanese Int. Economies 18 (1) (2004) 84–98.     

The fundamental determinants of financial integration in the European Union

The Fundamental Determinants of Financial Integration in the European Union. — This paper focuses on the fundamental determinants of the degree of financial integration in the European Union over the period 1974–1993. Using closed interest rate differentials to measure the intensity of capital controls and applying a pooled cross-section time-series approach, the authors find realized inflation, government instability and gross fixed capital formation to have a strong and significantly positive effect on the intensity of capital export controls. In addition, they expect the influence of economic and financial market structure on closed interest rate differentials to increase in the future.     

Unemployment dynamics in the UK

This paper examines the determinants of unemployment in termsof its statistical correlates. At one extreme unemployment hasbeen viewed as highly trended in the post war period, with theimplication that equilibrium unemployment has followed a broadlysimilar path. Alternatively, unemployment can be viewed as ahighly persistent series that departs for long periods froma more stable equilibria. This paper reports on reduced formmodels of unemployment and suggests that many exogenous variablesthat have typically been associated with movements in equilibriumunemployment have little explanatory power. Instead, unemploymentmay be characterised as a near unit root process driven by amixture of mean shifting I(0) variables.     

Productivity and the Euro-Dollar Real Exchange Rate

This paper analyses how productivity differentials between the United States and the euro area drive the euro-dollar real exchange rate. We derive impulse responses from a two-sector new open economy macro (NOEM) model. These are used as sign restrictions to identify a structural vector autoregression. Our results show that the Balassa–Samuelson effect, through traded sector productivity shocks, is less important in explaining the variation in the euro-dollar exchange rate than are demand and nominal shocks. In particular, productivity can explain part of the appreciation of the dollar in the late 1990s only to the extent that it created a boost to aggregate demand in the United States. JEL no. F41, F31     

Why Are Real Interest Rates Not Equalized Internationally?

In this study, we specify a set of sufficient parity conditions for real interest rates to be equalized internationally, what we call real interest parity (RIP). Using multivariate unit root tests, which have significantly greater power than univariate alternatives, we demonstrate that these sufficient conditions are not satisfied for five industrialized nations over the period of 1960-1996. We then examine each parity condition individually to shed some light on the source of the rejection of RIP. Our results suggest that no single violation can explain the failure of RIP in all cases. It does appear, however, that the Fisher relation is the least likely to violate the RIP equilibrium, whereas uncovered interest parity (UIP) appears to be the most commonly violated. This result is consistent with a nonstationary risk premium in the foreign exchange market.     

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.     

Government Expenditures and Revenues: Evidence from Asymmetric Modeling

In this article, we examine the relationship between U.S. federal revenues and expenditures while relaxing the assumption of a symmetric adjustment process underlying the conventional cointegration and error correction model. Threshold autoregression and momentum threshold autoregression models are used to ascertain the empirical link between the two variables of the budgetary process. Our results suggest that revenues and expenditures are cointegrated and that the adjustment process of the budgetary disequilibrium is asymmetric. The application of the asymmetric error correction model indicates that revenues and expenditures respond to the long-run requirements of the budgetary balance only when the budget is worsening.     

Re-examining the Fisher Effect: An Application of Small Sample Distributions of the Covariate Unit Root Test

Abstract

This article employs the covariate unit root test proposed by Elliott and Jansson to investigate the stationarity properties of real interest rates. Instead of blindly trusting the asymptotic distribution of the test, we extend Rudebusch's method to estimate its finite sample distributions under the null and alternative hypotheses. With these distributions, we can obtain the probabilities that the test statistic comes from the null and alternative hypotheses, and quantify the asymptotic size as well as the test power for each specific series. Our simulation experiments show that first, due to the higher power raised by the inclusion of covariates, the test can overwhelmingly reject the unit root null for the 16 industrialized countries; secondly, the Ng and Perron tests deliver lower powers in most countries, and thus lead to the false conclusion of non-stationary real interest rates. Finally, allowing for multiple endogenous breaks in the real interest rates provides only stationary evidence in half of the 16 countries.