Real interest parity: A note on Asian countries using panel stationarity tests

Existing panel data studies of real interest parity are either unable to identify which panel members are characterised by stationary real interest differentials, or are subject to size distortion resulting from the presence of structural breaks and cross-sectional dependencies. Using a panel stationarity testing procedure recently advocated by Hadri and Rao (2008) that allows for structural breaks and cross-sectional dependency, we are unable to reject the stationarity of Asian real interest rate differentials.     

Information arrival,interest rate differentials,and yen/dollar exchange rate

This paper examines the effects of interest rate differentials as inflowing information into the forex market on the yen/dollar exchange rate and unexpected trading volume by a structural VAR model. The impulse responses show that the short-term interest rate differential affects the exchange rate through (a) UIP with little change in unexpected trading volume, and (b) different expectation revisions at different points in time with a high transaction volume. The effects of long-term interest rate differential on the exchange rate appear instantaneous with high trading volume, reflecting instantaneous reshuffling in international portfolio holdings of long-term assets.     

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.     

Exchange rate expectations and risk premia in the European Monetary System: 1985–1991

Using a new set of survey data on EMS exchange rates, we investigate exchange rate expectations and risk premia between December 1985 and August 1991 to assess credibility of the system. It appears that the EMS—with the exception of the Italian lira—had become credible since early 1990. Moreover, one of the core predictions of the target zone literature—the inverse correlation between the position of the spot rate in the fluctuation band with its expected change—is corroborated for several currencies in the period after April 1990. Although the system appeared to be more credible, the persistence of interest differentials suggested the existence of risk premia. For four out of six currencies we find a significant relationship between the risk premium and the inflation differential relative to Germany.     

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.     

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.     

Credible Carbon Policy

The paper sets out the credibility problem in carbon policy,provides a number of examples of non-credibility in recent energypolicy, and identifies the costs of failing to address it. Thetime inconsistency of carbon policy—arising because ofmultiple objectives, the irreversibility of energy investments,and the scope for ex-post reneging on ex-ante commitments toset policy instruments, such as carbon taxes or emission permits,at appropriate levels—is set in a conceptual framework.Analogies with monetary policy are drawn, and a solution tothe time-inconsistency problem is proposed through the establishmentof an energy/carbon agency.     

The Macroeconomic Determinants of Emigrant Remittances

This paper considers the macroeconomic determinants of migrants' remittances to their countries of origin. In contrast to some previous analyses, we find, using data for Egypt, that both exchange rate and interest rate differentials are important in attracting remittance flows through official channels. We also find that imports financed through remittance earnings have a very high income elasticity which suggests either that these imports are consumer durables and luxury goods or that they are undertaken by higher income groups.     

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.     

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 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.     

Domestic-Foreign Interest Rate Differentials: Near Unit Roots and Symmetric Threshold Models

This paper investigates the near unit root behavior of interest rate differentials across countries using a symmetric Band-TAR model that allows for a heteroscedastic error process. We find that the time series properties of monthly short-term interest differentials over the period 1974–2005 between the United States and Canada, France, Germany, Japan, and the United Kingdom can be characterized by a symmetric Band-TAR process, which can explain its (near) unit root behavior reported in the extant literature. Results significantly reject a linear model in favor of the alternative hypothesis of a two-regime symmetric threshold model that exhibits significantly greater persistence within the threshold bands than when outside the threshold bands.     

The I-r hump: irreversible investment under uncertainty

t is well known that if investment is irreversible and uncertain,there exists a benefit to waiting. When such benefits are takeninto account, the relationship between interest rates and investmentmay be quite complex. In particular, when net revenues followa Gaussian random walk, model investment tends to zero at bothhigh and low interest rates. That is, investment is a hump-shapedfunction of r.     

Determinants of Trade Misinvoicing

Trade misinvoicing should be seen as an element of de facto capital account openness. Traditional explanations for trade misinvoicing??high custom duties and weak domestic economies??are less persuasive in a world of high growth emerging markets that have low trade barriers. We construct a 53-country data set over a 26?year span, covering both industrialized and developing countries, to study the phenomena of export and import misinvoicing. Capital account openness, differentials in interest rates, political stability, corruption, indebtedness and the exchange rate regime are identified as factors related to misinvoicing.     

OPTIMAL PRE-COMMITMENT IN MACROECONOMIC POLICY: A GAME THEORETIC ANALYSIS OF FISCAL POLICY

The version of the paper published in Oxford Economic Papers(Volume 42, October 1990, pp. 695–714) erroneously omittedthe figures. This note presents the figures and briefly describesthe results they show. The paper proposed a new solution to the problem of time inconsistency.A subgame-perfect trigger strategy equilibrium was presentedin which the public expected the government to renege on itsoriginally announced policy at some later date. The government'spre-commitment to its announced policy was determined endogenouslyas part of the equilibrium. The equilibrium was illustrated using Blanchard's (1985) modelof fiscal policy. I examined the [political] problem of maintainingaggregate consumption while reducing the level of governmentdebt. The problem of time inconsistency arises in this contextbecause the government has an incentive to renege on its promiseto raise future taxes. Numerical solutions of the model showedthat the government would renege after a period that dependedon its expected tenure and preferences. Figures 1 to 4 showthe behavior of the economy under policies with no pre-commitment([t₀t^*) = 0), a moderate period of precommitment ([t₀t^*) = 33.5),and a long period of pre-commitment ([t₀t^*) = 140.2). Figure 1 shows that governments with greater credibility willprefer to push the costs of falling consumption further intothe future. This is achieved by adopting policies that promiseto raise future revenues while cutting current taxes so thatthe fall in the value of government debt is offset by the risein human wealth [see Figures 2 and 4]. One important consequenceof these policies is that the level of government debt risesduring much of the period of pre-commitment. Figure 5 is used in the appendix to prove proposition 1     

Purchasing Power Parity Between the UK and Germany: The Euro Era

We use the Johansen cointegration approach to assess the empirical validity of the purchasing power parity (PPP) between the UK and Germany since the introduction of the euro. We conduct the empirical analysis in the context of the global financial crisis that began in 2007 and find that it directly affects the cointegration space. We fail to validate the Johansen and Juselius (1992) original hypothesis that nonstationarity of PPP associates with the nonstationarity of interest rate differentials to produce a stationary relation. On the other hand, we do not reject PPP. We find that PPP cointegrates with inflation differentials. We also find, contrary to conventional wisdom, that (i) equilibrium adjustment occurs between the German and UK inflation rates, while weak exogeneity exists for the German and UK interest rates and the PPP condition, and (ii) three common trends associated with the German interest rate the UK interest rate, and the PPP condition “push” the system with the German interest rate and the PPP condition playing dominant roles in affecting inflation in both Germany and the UK. These results cast serious doubt on the presumed independence of the UK monetary policy.     

Do Financial Market Variables Show Indicator Properties Relative to Exchange Rate Returns?

This paper assesses the contemporaneous indicator properties of financial market variables relative to movements in six major developed country currency pairs. As indicator variables changes in various relative asset prices, short-term portfolio flows and currency options data are used. We find that changes in equity index differentials, short-term speculative flows and risk reversals on currency options prices exhibit consistent indicator properties for several currency pairs. Since 1999, changes in short-term interest rate differentials have gained importance as indicators. The best indicator variables explain over 50 per cent of monthly returns of the USD/EUR and GBP/USD exchange rates and over 60 per cent of the appreciation and depreciation episodes of the USD/EUR and JPY/EUR currency pairs. JEL no. F31, F32, G15, C35     

Commodity prices and monetary policy in emerging East Asia during the global financial crisis

In the first phase of the global financial crisis, rising inflation was a major concern for emerging East Asian central banks. Coupled with a slowing US economy, regional central banks faced a monetary policy dilemma of either addressing higher inflation or supporting moderate growth. Higher food and fuel prices were the major drivers of headline inflation. Their causes, however, were a confluence of mutually reinforcing cyclical and structural factors. Understandably, different economies faced a different balance of risks between price stability and growth; but to attribute the inflation to supply shocks alone was misleading. This was unsettling given that inflation and inflation expectations were on the rise, and without much credibility, the reluctance of many central banks to raise interest rates risked repeating the mistake the advanced economies made in the 1970s. Without credibility, inflation expectations are unlikely to be well anchored. To gain credibility, a central bank must ‘walk‐the‐talk’, and understandably it must have the autonomy to do so.     

Testing for the uncovered interest parity condition in a small open economy: A state space modelling approach

Do interest rate differentials smoothly mirror the changes in the exchange rate between a small open economy and a large emerging market economy? The literature provides conflicting views on the validity of the uncovered interest parity condition (UIP), including its size and factors influencing the risk premium. We examine the validity of the UIP condition between Nepal and India using time-series data covering the period 1989 – 2019. A state space modelling approach based on the Kalman filter analysis is applied to simulate the risk premium. We find that the UIP condition does not hold for the Nepalese Rupee. A time-varying persistent negative risk premium that dominantly explains interest rate differentials is, instead, found. These findings imply that Nepalese residents prefer to hold foreign assets and continually expect future devaluations of the domestic currency. These present obstacles to developing domestic financial markets and the implementation of a market oriented monetary policy.     

The assessment: real interest rates

The assessment attempts to provide a broad explanation of thepost-war pattern of real interest rates, drawing on the theoreticaland empirical papers in this issue of the >Oxford Review. Itis argued that the concept of the 'neutral' rate of interest,at which the economy grows at its productive potential withoutchanges in the inflation rate, provides a helpful frameworkfor understanding these developments. The neutral rate providesa bridge between, on the one hand, the fundamental determinantsof real returns, as suggested by models of economic growth and,on the other hand, the functioning of asset markets and theoperating procedures of central banks. The change in policystance towards tighter money at the beginning of the 1980s isseen as having had long-lasting effects, especially when accountis taken of the fiscal stance.