how integrated are the money market and the bank loans market within the european union abstract this paper estimates cointegration vectors of the time series of money market interest rates and bank lending rates the study includes six member countries of the european union eu and covers a period of 10 years from 1985 to 1994 during this period significant steps were taken that intensified financial integration in the eu including the free flow of capital a system of stable exchange rate parities and the implementation of a single market for banking services we conclude that the domestic money markets are closely linked but the domestic banking markets are segmented preliminary investigation of international differences in the capital structure of firms on the one hand and of domestic business cycle conditions on the other hand do not seem to explain differences in bank spreads across countries the results point to other directions presumably to local market power and to differences in the role of lender monitoring

monetary and fiscal policies in an open economy the central theme of this paper is that international linkages between national economies influence in fundamentally important ways the effectiveness and proper conduct of national macroeconomic policies specifically our purpose is to summarize the implications for the conduct of macroeconomic policies in open economies of both the traditional approach to open economy macroeconomics as developed largely by james meade robert mundell and j marcus fleming and of more recent developments our discussion is organized around three key linkages between national economies through commodity trade through capital mobility and through exchange of national monies these linkages have important implications concerning the effects of macroeconomic policies in open economies that differ from the effects of such policies in closed economies recent developments in the theory of macroeconomic policy have established conditions for the effectiveness of policies in influencing output and employment which emphasize the distinction between anticipated and unanticipated policy actions the importance of incomplete information and the consequences of contracts that fix nominal wages and prices over finite intervals in this paper we shall not analyze how these conditions are modified in an open economy however since our concern is with macro economic policy a principal objective of which is to influence output and employment we shall assume that requisite conditions for such influence are satisfied this abstract was borrowed from another version of this item

causes of the forward bias non rational expectations versus risk premia the sources of the systematic forward bias in the foreign exchange market are sought a theoretical framework based on some well known international parity conditions is developed in order to derive testable hypotheses these are a only risk premia account for the observed deviations between forward and future sport rate c anticipated real exchange rate changes explain part of the bias the provided evidence is not consistent with any of these hypotheses which in turn implies that part of the bias may be due to non rational expectations

fiscal policies in the world economy this paper uses a two country general equilibrium model of the world economy in order to analyze the effects of budget deficits and government spending on world rates of interest consumption and international indebtedness it demonstrates the difference between the effects of fiscal expenditures and tax cuts as well as between the effects of current policies and expected future policies it is shown that the qualitative effects of fiscal policies depend on whether the country introducing the policies runs a surplus or a deficit in its current account following the positive analysis of the short run and the steady state effects the paper concludes with a normative analysis of the welfare implications of budget deficits

testing for unbiasedness of term structure and interest differentials as predictors of future inflation changes and inflation differentials this paper argues that the unbiasedness of interest differentials as predictors of future inflation differentials and of the term structure as a predictor of future inflation changes are independent propositions the first requires rational expectations re and equality of ex ante real interest rates which holds only in the presence of uncovered interest parity uip and ex ante purchasing power parity ppp the second is correct if in addition to re the fisher hypothesis and co nstancy of ex ante real rates are satisfied the issue of the information contained in the term structure of interest rates is important because if the relationship between interest rates for different maturities could help predict future inflation the yield curve could be a guide for monetary policy fama s 1975 seminal paper found that real interest rates are constant over time with fluctuations in nominal rates mainly reflecting changes in expected inflation the so called fisher effect on the contrary mishkin 1984a rejected the constancy of real rates and the existence of a fisher effect in a number of oecd countries as for the hypothesis that interest differentials are unbiased predictors of future inflation differentials it is of interest for two main reasons first the equality of real rates which is implied would mean that monetary policy is not an effective stabilization tool in an open economy as real economic activity could not be influenced through the real interest rate second real interest rate equalization across countries requires that uip and ppp be satisfied therefore it is a test of the monetary approach to exchange rates versus models which depend on real rates differing between countries in the short run amongst previous researchers mishkin 1984b could not reject the equality hypothesis in bilateral tests of the us vis a vis six industrialized

bond pricing and the term structure of interest rates a new methodology for contingent claims valuation this paper presents a unifying theory for valuing contingent claims under a stochastic term structure of interest rates the methodology based on the equivalent martingale measure technique takes as given an initial forward rate curve and a family of potential stochastic processee for its subsequent movements a no arbitrage condition restricts this family of processes yielding valuation formulae for interest rate sensitive contingent claims which do not explicitly depend on the market prices of risk examples are provided to illustrate the key results in relation to the term structure of interest rates arbitrage pricing theory has two purposes the first is to price all zero coupon default free bonds of varying maturities from a finite number of economic fundamentals called state variables the second is to price all interest rate sensitive contingent claims taking as given the prices of the zero coupon bonds this paper presents a general theory and a unifying framework for understanding arbitrage pricing theory in this context of which all existing arbitrage pricing models are special cases in particular vasicek 1977 brennan and schwartz 1979 langetieg 1980 ball and torous 1983 ho and lee 1986 schaefer and schwartz 1987 and artzner and delbaen 1988 the primary contribution of this paper however is a new methodology for solving the second problem i e the pricing of interest rate sensitive contingent claims given the prices of all zero coupon bonds the methodology is new because i it imposes its stochastic structure directly on the evolution of the forward rate curve ii it does not require an inversion of the term structure to eliminate the market prices of risk from contingent claim values and iii it has a stochastic spot rate process with multiple stochastic factors influencing the term structure the model can be used to consistently price and hedge all contingent claims american or european on the term structure and it is derived from necessary and more importantly sufficient conditions for the absence of arbitrage the arbitrage pricing models of vasicek 1977 brennan and schwartz 1979 langetieg 1980 and artzner and delbaen 1988 all require an iformerly titled bond pricing and the term structure of interest rates a new methodology

monte carlo methods for security pricing the monte carlo approach has proved to be a valuable and flexible computational tool in modern finance this paper discusses some of the recent applications of the monte carlo method to security pricing problems with emphasis on improvements in efficiency we first review some variance reduction methods that have proved useful in finance then we describe the use of deterministic low discrepancy sequences also known as quasi monte carlo methods for the valuation of complex derivative securities we summarize some recent applications of the monte carlo method to the estimation of partial derivatives or risk sensitivities and to the valuation of american options we conclude by mentioning other applications

a note on exchange rate expectations and nominal interest differentials a test of the fisher hypothesis this note tests the hypothesis that nominal interest differentials between similar assets denominated in different currencies can be explained entirely by the expected change in the exchange rate over the holding period this proposition often called the fisher open hypothesis or the hypothesis of perfect asset substitutability has been a major component of recent theories of exchange rate determination and has important implications for monetary policy 1 the fisher hypothesis differs from the covered interest parity theorem enunciated by keynes 11 while covered interest parity equates the nominal interest differential between financial centers to a known premium or discount on forward foreign exchange and is thus in principle riskless fisher parity involves risk in an essential way the two conditions are equivalent only when forward exchange rates equal expected future spot rates recent theoretical work for example that of grauer litzenberger and stehle 8 kouri 12 and frankel 6 shows that this need not be the case when market participants are risk averse thus while covered interest parity must always hold exactly in an informationally efficient asset market with no transactions costs fisher parity need not nominal interest differentials may reflect risk premia in addition to expected exchange rate movements 2 it should be emphasized at the outset that the tests conducted in this paper are really joint tests of the fisher hypothesis and a weak form of foreign exchange market informational efficiency levich 14 has argued that tests of market efficiency are always joint tests involving some hypothesized structure of normal equilibrium returns below we assume informational efficiency and instead test fisher s hypothesized arbitrage condition that nominal interest differentials equal expected percentage changes in exchange rates

the sensitivity of american options to suboptimal exercise strategies the value of american options depends on the exercise policy followed by option holders market frictions risk aversion or a misspecified model for example can result in suboptimal behavior we study the sensitivity of american options to suboptimal exercise strategies we show that this measure is given by the gamma of the american option at the optimal exercise boundary more precisely if b is the optimal exercise price but exercise is either brought forward when or delayed until a price b has been reached the cost of suboptimal exercise is given by b b b 2 where b denotes the american option gamma therefore the cost of suboptimal exercise is second order in the bias of the exercise policy and depends on gamma this result provides new insights on american options

consumer decision making e commerce and perceived risks this article studies how adoption and usage behaviour of the internet and online shopping respectively influence the preference to use electronic commerce to purchase different types of products we empirically model the preference for electronic commerce when consumers have to buy different types of products and thus face different types of risks cox and rich 1964 unlike previous research we find that consumers who have previously shopped online display stronger preferences to buy products on the internet irrespective of the perceived level of product specific risks of online shopping this article provides an interesting and novel insight into how both adoption and usage of electronic commerce impact on the attitude and risk perception of buying less predictable more risky products on the internet

international capital mobility in oecd countries the feldstein horioka puzzle revisited abstract we utilise the most recent time series techniques of dynamic ols and examine international capital mobility across 23 oecd countries we adopt the saving investment approach where the endogeneity problem is confronted our findings show that capital has been remarkably mobile in most countries over the last three decades

is there a world real interest rate abstract this study uses panel data techniques to estimate a common component to the ex post real interest rates of nine countries with liberal capital markets over the past 16 years we show that the residuals from such a regression have almost no serial correlation and that each country s real interest rate is highly correlated with the estimated world real interest rate the primary exception to these findings is the behavior of the us real interest rate which exhibits large and persistent deviations from the estimated world real interest rate although it is still highly correlated with the world real interest rate

is there a connection between monetary unification and real economic integration evidence from regime switching stationarity tests abstract we investigate the extent of real convergence among g7 economies in terms of long run real interest parity a novel approach is applied where unit root tests of real interest differentials are embedded within a markov regime switching framework whereas standard univariate unit root tests provide little support for parity we find real convergence is present after allowing for regime switches in real interest misalignments however differentials across members of the euro zone are likely to exhibit greater persistence despite nominal convergence it is non sequitur to infer from monetary unification that nominal convergence is necessarily conducive to real interest realignments or preventive of misalignments

forecasting inflation using interest rate and time series models some international evidence it has been suggested that inflation forecasts derived from short term interest rates are as accurate as time series forecasts previous analyses of this notion have focused on u s data providing mixed results in this article the authors extend previous work by testing the hypothesis using data taken from the united states and five other countries using monthly eurocurrency rates and the consumer price index for the period 1967 86 their results indicate that time series forecasts of inflation have equal or lower forecast errors and have unbiased predictions more often than the interest rate based forecasts copyright 1990 by the university of chicago

does real interest parity hold at longer maturities abstract this paper investigates the validity of real interest parity rip for long maturities across the us britain and germany a standard view commonly referred to as the fisher hypothesis is that over long horizons movements in expected inflation dominate movements in nominal interest rates or that real interest rates are equal over the 1973 1991 sample period however rejections of conditional rip occur at all horizons extending from a quarter to five years the evidence indicates that there appears to be no tendency for expected real interest rates to be equalized over longer maturities

political vs currency premia in international real interest differentials a study of forward rates for 24 countries abstract different approaches to quantifying the degree of capital mobility for a cross section of currencies particularly saving investment correlations and tests of real interest parity have appeared to show a surprisingly low degree of financial integration we use a new data set forward rate data for 24 countries including many small industrialized countries and seven ldcs to decompose the real interest differential into two parts the covered interest differential or political premium and the real forward discount or currency premium the latter in turn can be decomposed into the exchange risk premium and expected real depreciation we find a high degree of capital mobility across political boundaries for most of the g 11 countries plus hong kong and singapore for our sample period of 1982 to 1987 even for most of the other ldcs and smaller industrialized countries for which covered interest parity clearly fails the political premium is not as big a component of the real interest differential as the currency premium france would appear to have higher capital mobility than most by the criterion of real interest differentials but is seen in fact to have low capital mobility by the criterion of covered interest differentials a clear example of the superiority of the latter criterion

international interest rate linkages and the exchange rate regime abstract return differentials between instruments denominated in canadian dollars and instruments denominated in american dollars are investigated the study compares the properties of return differentials in the period of fixed exchange rates during the 1960s and in the period of flexible exchange rates during the 1970s and 1980s both real and nominal return differentials are investigated the results indicate that the change in exchange rate regime is not associated with a change in the average level of ex post return differentials between canada and the united states models which predict ex ante return differentials from available information in a rational expectations framework show a surprisingly large amount of structural stability across the regime change the major impact of the flexible exchange rate regime is on the variance of ex post return differentials and not on the average level of ex post or ex ante return differentials jel e42 e58 g15

are real interest rates equal across countries an empirical investigation of international parity conditions this paper conducts empirical tests of the equality of real interest rates across countries the empirical evidence strongly rejects the hypothesis of real rate equality and the joint hypotheses of uncovered interest parity and ex ante relative ppp or the unbiasedness of forward rate forecasts and ex ante relative ppp the evidence suggests that it is worth studying open economy macroeconomic models which allow 1 domestic real rates to differ from world rates 2 time varying risk premiums in the forward market or 3 deviations from ex ante relative ppp the relationship of real interest rates across countries is of central importance to our understanding of open economy macroeconomics in some models where there is costless international arbitrage in goods and financial assets real interest rates for comparable securities should be equal across countries this has been a feature of much of the early research in the monetary approach to exchange rates e g frenkel 11 and bilson 2 on the other hand finance theory indicates that risk premia may well differ for comparable securities denominated in different currencies solnick 27 roll and solnick 26 stulz 28 fama and farber 7 hansen and hodrick 17 and dornbusch 6 and more recent theoretical models in the exchange rate literature such as dornbusch 5 frankel 10 and mussa 24 depend on real rates differing between countries in the short run the proposition that real rates are equal across countries is worth studying

capital market integration in the pacific basin region an impulse response analysis abstract we examine the extent of capital market integration in a group of pacific basin countries following the deregulation of their markets and explore whether the financial influence of japan in the region has overtaken that of the us looking at long run comovements of real interest rates through the use of cointegration and using impulse response analysis to examine the speed of adjustment of real interest rates to long run equilibrium following a shock in one of the markets which is another indicator of the degree of capital market integration we find that these countries are closely linked with world financial markets and more so with japan than with us

does the real interest parity hypothesis hold evidence for developed and emerging markets we present empirical evidence on the real interest parity hypothesis for a set of emerging and developed countries this is done by carrying out a set of unit root tests on the real interest differentials with respect to the us our results support the hypothesis of a rapid reversion towards a zero differential for developed countries and towards a positive one for emerging markets mean reversion is faster for emerging market economies we also find that this adjustment tends to be highly asymmetric and markedly different for developed and emerging markets our evidence reveals a high degree of market integration for developed countries and highlights the importance of risk premia for emerging markets

throwing away a billion dollars the cost of suboptimal exercise strategies in the swaptions market abstract this paper studies the costs of applying single factor exercise strategies to american swap options when the term structure is actually driven by multiple factors using a multifactor string market model of the term structure we find that even when single factor models are recalibrated to match the market at every exercise date the exercise strategies they imply can be suboptimal based on estimates of notional amounts outstanding the total present value costs of following single factor strategies could be several billion dollars these results illustrate the importance of using well specified term structure models

international capital mobility in developing countries theory and evidence despite the importance of international capital mobility in influencing the outcome of stabilization policies there is little research on the issue in developing countries this paper tests the degree of capital mobility in nine developing countries using the intertemporal consumption smoothing framework we find considerable evidence to suggest that capital is sufficiently mobile in the countries under examination to facilitate consumption smoothing in the event of shocks to the national cash flow national income net of private investment and government spending our findings also suggest that the impact of shocks to one or more components of the national cash flow on the current account is offset by dynamic responses of other components such that the current account balance is preserved from drastic movements over time

sources of variation in international real interest rates this paper analyses the effects of inflation on ex post real interest rates in an international framework a dynamic factor model is estimated in which real interest rates are influenced by real interest and inflation factors that are common to all the countries and by country specific factors we find that the source of domestic inflation is an important determinant of the effect of inflation on real interest rates a common inflation factor has a negative effect on ex post real interest rates lending support to a form of the mundell tobin effect in international real interest rates and that a country specific inflation factor tends to have a positive effect

a one factor model of interest rates and its application to treasury bond options 1990 a one factor model of interest rates and its application to treasury bond options financial analysts journal vol 46 no 1 pp 33 39

hedging in the possible presence of unspanned stochastic volatility evidence from swaption markets this paper examines whether higher order multifactor models with state variables linked solely to underlying libor swap rates are by themselves capable of explaining and hedging interest rate derivatives or whether models explicitly exhibiting features such as unspanned stochastic volatility are necessary our research shows that swaptions and even swaption straddles can be well hedged with libor bonds alone we examine the potential benefits of looking outside the libor market for factors that might impact swaption prices without impacting swap rates and find them to be minor indicating that the swaption market is well integrated with the libor swap market

real interest rate equalization some empirical evidence from the three major world financial markets this article examines the linkage of real interest rates of the three major world financial markets usa japan and the uk with the use of cointegration methods unlike previous works the investigation uses a trivariate vector autoregressive var model in which a constant term in the common stochastic trends space is excluded based on data generated after the liberalization of japan s foreign exchange market at the end of 1980 1981 1 1998 12 the article finds some empirical evidence indicating that the extent of the departure from the long run real interest rate equalization rie is not very large although the null hypothesis of the long run rie is rejected in most cases

international asset pricing with time varying risk premia abstract recent empirical evidence that forward exchange rates are biased predictors of future spot rates can also be interpreted as evidence against the hypothesis of a constant risk premium consequently reconciliation of this evidence with efficient international capital markets requires the existence of time varying risk premia this paper modifies kouri s 1977 asset pricing model to allow time varying exected returns on assets eliminates the assumption of a risk free real asset and derives the characteristics of the risk premia in the forward market as well as the equilibrium yield relationships among the equities and riskless nominal bonds of all countries

real interest rate equalization and the integration of international financial markets abstract this paper argues that conventional regression tests of real interest rate equality may be misleading because they neglect to consider transactions costs a transactions cost band may inhibit the one to one correspondence between changes in real rates in alternative countries that is presumed by conventional tests statistical problems which may lead to incorrect inferences in conventional tests are also discussed alternative tests which overcome these limitations are developed and applied to real interest rates for ten different countries the alternative tests generate much stronger support for interest parity than is found in the existing literature

do bonds span the fixed income markets theory and evidence for unspanned stochastic volatility most term structure models assume bond markets are complete that is that all fixed income derivatives can be perfectly replicated using solely bonds however we find that in practice swap rates have limited explanatory power for returns on at the money straddles portfolios mainly exposed to volatility risk we term this empirical feature unspanned stochastic volatility usv while usv can be captured within an hjm framework we demonstrate that bivariate models cannot exhibit usv we determine necessary and sufficient conditions for trivariate markov affine systems to exhibit usv for such usv models bonds alone may not be sufficient to identify all parameters rather derivatives are needed

interest rates inflation and taxes the foreign connection abstract in this note it is shown that the existence of taxes on nominal interest receipts in an international setting introduces a non neutrality in that a change in expected inflation in one country must change at least one expected real interest rate or the path of the real exchange rate

why are real interest rates not equalized internationally 1 introductioninternational financial economists are intensely concerned with several parity conditions that relate goods prices and asset returns across countries these include purchasing power parity ppp interest rate parity irp and variations of these two such as relative ppp ex ante ppp and real interest rate parity rip each of these parity conditions measures a degree of integration between the economies of the world the greater the economic integration across countries the greater the likelihood that the more restrictive of these parity conditions will have empirical support for example the strict ppp hypothesis implies that aggregate price levels will be equal in terms of a common currency this condition is very stringent because it does not allow for even temporary deviations from the equilibrium condition 1 a less restrictive version is long run ppp where price levels measured in a common currency across countries converge over some period of time may be a very long period of time recognizing all of the impediments that keep strict ppp from holding economists have put their efforts in studying the long run version of this equilibrium condition there is a relatively large literature examining the equality of real interest rates internationally 2 in all of these studies the real interest rate is defined by the fisher equation these studies then go on to estimate and test for the simultaneous existence of uncovered interest parity uip which is also called the open economy fisher relation and ex ante ppp eappp the other conditions sufficient for rip the problem in this strategy is that the fisher equation may not hold many studies have been devoted to examining the validity of the fisher relationship for both the u s and other economies 3 the results of this line of inquiry have been decidedly mixed even if the fisher relation does hold it is unlikely that the fisher effect will be one for one as implied by defining the real interest rate from the simple fisher equation both mundell tobin and tax effects can drive a wedge between inflation expectations and the effect on nominal interest rates 4 it would seem more appropriate to treat the fisher relation as another testable parity condition than as an assumption in this study we examine the underlying parity conditions sufficient for rip treating them as hypotheses to be tested the four parity conditions or equilibrium relationships upon which rip is predicated uncovered interest parity uip ex ante ppp eappp the fisher relation in each country i e the fisher relation in country a and the fisher relation in country b imply time series implications for the observable variables specifically if any of the nominal interest rates or inflation rates can be characterized as integrated variables evidence of which we will provide then the four parity conditions imply one common stochastic trend between them therefore an initial examination of the sufficient conditions for rip should include a test for a unit root in the observable variables and then a test for the number of common stochastic trends in a given rip system because the power of univariate unit root and stationarity tests is notoriously low many exploit the power gains available by using panel tests however there are serious drawbacks to some of these panel unit root tests for example o connell 1998 taylor and sarno 1998 and breuer mcnown and wallace 2001 we overcome these drawbacks by taking advantage of recent innovations in univariate and multivariate unit root tests that have substantially greater power to reject a false null but are not subject to the size distortions associated with some popular panel based tests our use of these methods leads us to conclude that each rip system analyzed can be characterized to some degree as a system of integrated variables that share more than one common trend

political regime change and the real interest rate the effect of changes in policy regimes on real interest rates has important implications for financial and economic theory there is little current evidence that policy regime changes have any impact on the level of real interest rates we use large political changes as our measure of policy regime changes changes in presidential administration are more significantly correlated with real rate changes than are changes in the federal reserve chair or the mean shift points identified by garcia and perron 1996 using time series methods we also show that change of party control of congress is a significant factor explaining real rates we argue that theoretical models built on the assumptions of constant or policy invariant real interest rates are at variance with the empirical evidence

on the suboptimality of single factor exercise strategies for bermudan swaptions abstract this paper resolves the disagreement between longstaff et al 2001 journal of finance economics 62 39 66 and andersen and andreasen 2001 journal of financial economics 62 3 37 over the effectiveness of the common business practice of using best fit single factor term structure models to deduce exercise strategies of bermudan swaptions i examine the cost of using recalibrated single factor models to determine the exercise strategy for bermudan swaptions in a multifactor world i show that single factor exercise strategies applied in a multifactor world only give rise to economically insignificant losses furthermore i find that the conditional model risk as defined in longstaff et al 2001 journal of finance economics 62 39 66 is statistically insignificant given the number of observations additional tests using the primal dual algorithm of andersen and broadie 2004 management science 50 9 indicate that losses found in longstaff et al 2001 journal of finance economics 62 39 66 cannot as claimed be ascribed to the number of factors

the real interest rate a multi country empirical study how real interest rates behave over time is critical to our understanding of many macroeconomic issues and much recent research has pursued this question very little of the research however has focused on real interest rates outside the united states this paper is an empirical exploration of real interest rate movements in seven oecd countries from 1967 ii to 1979 ii further research is needed on real rates in other countries for several reasons not only are measures of foreign real rates of interest in their ownright but extending an analysis of real rates to other countries also has the following additional benefits it can generate more powerful statistical tests of propositions previously tested on u s data and yield information on whether results found for the u s hold up in other countries this study pursues several questions that have arisen naturally from this earlier work is the hypothesis that the real rate is constant rejected when the analysis is extended to other countries does the real rate decline with increased inflation and money growth in other countries besides the united states how reliable is the fisher effect in which nominal interestrates reflect changes in expected inflation are movements in nominal interest rates a reliable indicator of movements in real rates what kind of variationsin real interest rates are there in different countries have real rates declined from the 60s to the 70s for other countries besides the u s this abstract was borrowed from another version of this item

consumption and real exchange rates in dynamic economies with non traded goods abstract we examine the possibility that non traded goods may account for several striking features of international macroeconomic data large persistent deviations from purchasing power parity small correlations of aggregate consumption fluctuations across countries and substantial international real interest rate differentials a dynamic exchange economy is used to show that non traded goods in principle can account for each of these phenomena in the theory there is a close relation between fluctuations in consumption ratios and those in bilateral real exchange rates but we find little evidence for this relation in time series data for eight oecd countries

inflation real returns and capital investment we find evidence for the hypothesis of mundell 1963 and tobin 1965 that the expected real return component of interest rates is negatively related to the expected inflation component in the mundell tobin model the variation in expected real returns is caused by the variation in expected inflation our evidence suggests however that the variation in expected real returns is more fundamentally an outcome of the capital expenditures process equilibrium expected real returns vary directly with capital expenditures in order to induce equilibrium allocations of resources between consumption and investment this positive relation between expected real returns and real activity which comes out of the real sector combines with a negative relation between expected inflation and real activity which is traced to the monetary sector thus inducing the negative relation between expected inflation and expected real returns predicted by mundell and tobin but explained in terms of a model much different from theirs

real interest parity rip over the 20th century new evidence based on confidence intervals for the largest root and the half life abstract in this paper we employ local to unity asymptotics to investigate the validity of real interest parity rip for three countries relative to the us using long span data we find that deviations from parity are corrected quickly and this is what could in principle be expected to happen in an integrated world where economic forces act rapidly so that discrepancies do not grow systematically over time moreover the observed speed of reversion raises important issues for policy in that the tendency for rates to converge implies that the impact of the domestic authorities stabilization polices might be limited finally there is no clear cut difference in the adjustment to shocks across fixed and floating regimes

real interest rate parity new measures and tests abstract international financial theory implies that for international comparisons the appropriate measure of the real interest rate is one defined in terms of traded goods prices alone new measures of the real interest rate are constructed using changes in price indexes for traded goods as deflators these new measures are tested for international real rate equality and the results are compared to those of similar tests using measures based on the change in the cpi and the wpi there are important differences between the traded goods real rate measures and those based on either the cpi or the wpi however in general the tests support the hypothesis that the real interest rate is approximately measured in terms of traded goods jel f30

flexible exchange rates prices and the role of news lessons from the 1970s recent experience with flexible exchange rate systems has led to renewed interest in the operation of foreign exchange markets as reflected in many recent studies of the principal determinants of exchange rates the 1970s witnessed the dramatic alteration of the international monetary system from a regime of pegged exchange rates which prevailed for about a quarter of a century since the bretton woods conference into a regime of flexible though managed rates as a consequence of the emergence of the new legal and economic system traders national governments and international organisations were confronted with new economic problems choices and instruments during the 1970s ex change rates fluctuated widely and inflation rates accelerated the international monetary system had to accommodate extraordinarily large oil related shocks which affected trade flows in goods and assets huge oil payments had to be recycled uncertainties concerning future developments in international politics reached new heights and the prospects for the world economy got gloomier these developments placed unprecedented pressures on the markets for foreign exchange as well as on other asset markets they were associated with a large slide in the value of the us dollar and resulted in speeding up the creation of new institutions like the european monetary system which provided the formal framework for the management of exchange rates among members

dynamics of real interest differentials an empirical investigation abstract linear dynamic stochastic processes are derived for the ex ente real interest differentials from those followed by the ex post processes under the assumption of rational expectations the technique is used to test the equality of ex ante real rates between u s and a number of oecd countries the evidence against the short run equality of ex ante real rates is overwhelming in the long run the rates are co integrated but not always equal it takes approximately six months for the differentials to converge to their long run values

the transmission of disturbances under alternative exchange rate regimes with optimal indexing the paper develops a general stochastic macroeconomic model that can be used to study the international transmission of disturbances under four alternative exchange rate systems uniform flexible exchange rates uniform fixed exchange rates and two versions of two tier exchange rates the analysis makes two general points first one cannot assume stability of structure when assessing the consequences of alternative exchange rate regimes for example the slope of the aggregate supply curve and the rationally formed expectations in the asset markets can respond dramatically to the government s choice of exchange rate regime second exchange rate regimes that provide full insulation from foreign disturbances may nevertheless be inferior to other regimes in terms of their ability to maximize social welfare

an empirical comparison of forward rate and spot rate models for valuing interest rate options our main goal is to investigate the question of which interest rate options valuation models are better suited to support the management of interest rate risk we use the german market to test seven spot and forward rate models with one and two factors for interest rate warrants for the period from 1990 to 1993 we identify a one factor forward rate model and two spot rate models with two factors that are not significantly outperformed by any of the other four models further rankings are possible if additional criteria are applied

forward foreign exchange rates expected spot rates and premia a signal extraction approach in this paper we implement a methodology to identify and measure premia in the pricing of forward foreign exchange that involves application of signal extraction techniques from the engineering literature diagnostic tests indicate that these methods are quite successful in capturing the essence of the time series properties of premium terms the estimated premium models indicate that premia show a certain degree of persistence over time and that more than half the variance in the forecast error that results from the use of current forward rates as predictors of future spot rates is accounted for by variation in premium terms the methodology can be applied straightforwardly to the measurement of unobservables in other financial markets there exists a growing body of empirical research on premia in the pricing of forward foreign exchange conditional on the hypothesis that the foreign exchange market is efficient or rational the existence of time varying premia has been documented in the literature by fama 6 hansen and hodrick 10 11 hodrick and srivastava 15 16 hsieh 171 and korajczyk 20 frankel 9 fails to identify such premia and domowitz and hakkio 51 obtain different results for different currencies

consumption patterns as a measure of capital mobility evidence from some apec countries consumption patterns are used to measure capital mobility within the apec region both on a bilateral and multilateral basis two models are estimated by iv sur and ols using quarterly data for four countries the us japan canada and australia the results show that the hypothesis of perfect capital mobility is rejected and some results even indicate autarky it is argued however that the hypothesis of perfect capital mobility is unreasonable and that the consumption criterion is inappropriate because it assumes real interest equalization

american option sensitivities estimation via a generalized infinitesimal perturbation analysis approach in this paper we develop efficient monte carlo methods for estimating american option sensitivities the problem can be reformulated as how to perform sensitivity analysis for a stochastic optimization problem with model uncertainty we introduce a generalized infinitesimal perturbation analysis ipa approach to resolve the difficulty caused by discontinuity of the optimal decision with respect to the underlying parameter the ipa estimators are unbiased if the optimal decisions are explicitly known to quantify the estimation bias caused by intractable exercising policies in the case of pricing american options we also provide an approximation guarantee that relates the sensitivity under the optimal exercise policy to that computed under a suboptimal policy the price sensitivity estimators yielded from this approach demonstrate significant advantages numerically in both high dimensional environments and various process settings we can easily embed them into many of the most popular pricing algorithm

lattice models for pricing american interest rate claims this article establishes efficient lattice algorithms for pricing american interest sensitive claims in the heath jarrow and morton paradigm under the assumption that the volatility structure of forward rates is restricted to a class that permits a markovian representation of the term structure the class of volatilities that permits this representation is quite large and imposes no severe restrictions on the structure for the spot rate volatility the algorithm exploits the markovian property of the term structure and permits the efficient computation of all types of interest rate claims specific examples are provided

is it risk explaining deviations from uncovered interest parity abstract this paper analyzes ex ante returns to forward speculation and asks if these returns can be explained by models of a foreign exchange risk premium after presenting evidence that both nominal and real expected speculative profits are nonzero the paper examines if real returns to forward speculation are consistent with consumption based models of risk premia estimates of the conditional covariance between real speculative returns and real consumption growth are presented and like ex ante returns to forward speculation they exhibit statistically significant fluctuations over time and often change sign

world public debt and real interest rates real interest rates appear to have risen in virtually all industrialized countries in the 1980s and 1990s relative to levels that prevailed in earlier decades there is concern that this may reflect higher public debt which is crowding out private sector activity there has also been increasing international capital market integration implying that interest rates in any country may be sensitive to global fiscal developments this paper estimates the effects of such fiscal developments on real interest rates in nine industrial countries the results imply that the increase in oecd wide government debt since the late 1970s was a major factor in the rise in real interest rates copyright 1999 by oxford university press

some evidence on the international inequality of real interest rates abstract this paper undertakes econometric tests of the hypothesis that ex ante real interest rates are equal across countries with highly integrated capital markets the issue is of practical importance because the violation of real rate equality is a necessary condition for monetary policy to influence the open economy through the real interest rate channel although an empirical literature concerning real rate equality already exists previous investigators have focused on pre tax real rates this paper contributes to the literature by attempting to incorporate the effects of taxation into the analysis

evaluation of counterparty risk for derivatives with early exercise features abstract we introduce an efficient numerical approach to evaluate counterparty risk and we compute the credit valuation adjustment for derivatives having early exercise features the approach is flexible and can account for wrong way risk and various models for the underlying risk factor s dynamics numerical experiments are presented to illustrate the efficiency and versatility of the method

increasing consumer well being risk as potential driver of happiness abstractthis article investigates the relation between risk and individual well being we propose a theoretical model of happiness that makes a distinction between ex ante evaluations of happiness and ex post assessments the main assumptions of the model are tested through three studies based on anchoring vignettes we show that even if ex ante consumers fear high risk and do not associate it to a high level of happiness their ex post evaluation of well being is generally higher when identical consequences result from a high risk situation than from a low risk situation control over risk taking reinforces the gap between ex ante and ex post measures of happiness thus our article provides empirical evidence about a positive relation between risk and individual well being suggesting that risky experiences have the potential to increase consumer well being

a methodology for assessing model risk and its application to the implied volatility function model we propose a methodology for assessing model risk and apply it to the implied volatility function ivf model this is a popular model among traders for valuing exotic options our research is different from other tests of the ivf model in that we reflect the traders practice of using the model for the relative pricing of exotic and plain vanilla options at one point in time we find little evidence of model risk when the ivf model is used to price and hedge compound options however there is significant model risk when it is used to price and hedge some barrier options

the persistence of real interest differentials abstract this paper applies kalman filtering techniques to estimate the persistence of ex ante real interest differentials identification results for state space models applicable in other contexts are presented and exploited in the model estimation ex ante real interest differentials for the period 1973 1987 are found to be relatively short lived and mean reverting to zero thus providing empirical support for theoretical models of economic interdependence characterized by real rate equality in the long run steady state for the sample considered the variability of the differentials relative to the u s is found to be larger than that relative to germany

closed form solutions for term structure derivatives with log normal interest rates we derive a unified model that gives closed form solutions for caps and floors written on interest rates as well as puts and calls written on zero coupon bonds the crucial assumption is that simple interest rates over a fixed finite period that matches the contract which we want to price are log normally distributed moreover this assumption is shown to be consistent with the heath jarrow morton model for a specific choice of volatility closed form solutions for interest rate derivatives in particular caps floors and bond options have been obtained by a number of authors for markovian term structure models with normally distributed interest rates or alternatively log normally distributed bond prices see for example jamshidian 1989 1991a heath jarrow and morton 1992 brace and musiela 1994 geman el karoui and rochet 1995 these models support black scholes type formulas most frequently used by practitioners for pricing bond options and swaptions unfortunately these models imply negative interest rates with positive probabilities and hence they are not arbitrage free in an economy with opportunities for riskless and costless storage of money briys crouhy and schobel 1991 apply the gaussian framework to derive closed form solutions for caps floors and european zero coupon bond options to exclude the influence of negative forward rates on the pricing of zero coupon bond options they introduce an additional boundary condition as shown by rady and sandmann 1994 these pricing formulas are only supported by a term structure model with an absorbing boundary for the forward rate at zero where the absorbing probability is not negligible which for a term structure model is a quite problematic assumption

the international linkage of real interest rates the european us connection abstract in this paper we present evidence on several questions regarding the movement in short term real interest rates in eight countries have ex ante real estates in the united states and europe been high during recent years has there been a link between us real rates and those in other countries can this link be quantified the basic finding in this paper is that real rates have climbed dramatically from the 1970s to the 1980s in both the european countries and the united states there is also strong evidence that there is a positive association between movements in us real rates and those in europe however european real rates typically do not move one for one with us real rates still leaving open the possibility that european monetary policy can influence domestic economic activity

a model of exchange rate dynamics this model treats the exchange rate as an asset price that depends on expectations concerning exogenous real and monetary factors that will affect relative prices and absolute price levels in future periods changes in exchange rates reflect both expected changes in these exogenous factors and changes in expectations occasioned by new information the model explains the random component in exchange rate behavior the source of divergences from purchasing power parity the anticipatory response of exchange rates to future expected disturbances and the causes of exchange rate overshooting

international expected real interest rates new tests of the parity hypothesis and u s fiscal policy effects abstract this paper investigates the links among expected real interest rates across countries and also those between international expected real interest rates and u s fiscal policy we analyze the cross sectional mean of international ex post real interest rates as an estimator for the mean international expected real interest rate our results strongly reject the international expected real interest rate parity hypothesis reveal that u s budget deficits have no independent effects on international real rates given the impact of u s government defense spending and suggest that forces other than u s fiscal policy account for the post 1980 rise in international real rates

monetary regime changes and the behavior of ex ante real interest rates a multi country study abstract previous research has found that u s monetary regime changes are related to changes in the behavior of ex ante real interest rates this paper examines monetary regime changes in other countries to test whether changes in expected real interest rates are related to monetary regime changes in a systematic manner the results show that while real rates have not been constant across monetary regimes the characteristics of the real rate process shifts differ across countries this evidence is consistent with theories that predict the neutrality of monetary regime changes with respect to real variables

e commerce and consumer s purchasing behaviour after its first exposure to the public in 1993 there has been a rapid increase in the use of the internet for different purposes particularly for electronic trade in such a new trade area there are a lot of issues to be addressed with regard to the consumer s purchasing behaviour this study analyses the roles of sexual preference primary place of online access and online experience as well as demographic and economic factors on the consumer s purchasing decision moreover this study investigates the impact of the potential and or prevalent critical issues facing the internet e g taxation of services privacy censorship etc on online orders surprisingly sexual preferences have a large significant effect on online purchases gay and bisexual people are more likely to shop from the internet than the other ones the results also suggest that people with more online experiences in a more private and secure environment like home are disposed to order more from the internet in addition to that

tests of three parity conditions distinguishing risk premia and systematic forecast errors abstract this study provides evidence that uncovered interest differentials between currencies cannot be attributed to either risk premia or systematic forecast errors alone the evidence is based on developing joint tests of three parity conditions uncovered interest parity purchasing power parity and real interest parity the study tests parameter restrictions based on knowing that risk premiums only affect nominal and real interest differentials but not inflation differentials while systematic errors in forecasting exchange rates only affect nominal interest differentials and inflation differentials but not real interest differentials the study finds a variety of cases where deviations from some or all of the parity conditions can be systematically related to variables currently known to investors and borrowers the most intriguing evidence is that for some currencies these deviations from parity are perfectly correlated as if they were driven by a common factor

covered interest parity a high frequency high quality data study profitable deviations from covered interest parity cip represent riskless arbitrage opportunities and so indicate market ineffic iency previous empirical work on cip uses noncontemporaneously sampl ed data and reports mixed results this paper uses high frequency te n minute high quality data gathered personally by the author in th e london foreign exchange market to test the cip condition the resu lts overwhelmingly support the market efficiency hypothesis copyright 1987 by the review of economic studies limited

dynamic linkages among real interest rates in international capital markets abstract short run and long run dynamic linkages among weekly real interest rates for g 10 countries are examined using a variety of time series tests these tests give special attention to the time series properties of nominal interest rates ex ante expected rates of inflation and real interest rates term structure information is used to recover a theoretically consistent measure of ex ante expected inflation in sample and out of sample granger causality tests are also examined to evaluate lead lag relationships among real interest rates the results provide strong support for well integrated markets particularly in the long run the results imply leadership roles for the us in international asset markets