jump diffusion processes and the term structure of interest rates the authors investigate the term structure of interest rates when the underlying state variables and production technologies follow the jump diffusion processes even in some cases where the traditional expectations theory about the term structure is consistent with general equilibrium under diffusion processes the traditional theory is not consistent under jump diffusion processes it is shown that bond prices are strictly higher under jump risks than otherwise and that consumers with logarithmic utility functions will develop hedge portfolios in the presence of jump diffusion a number of continuous time asset pricing models have been derived under stochastic diffusion processes with continuous sample paths see e g black and scholes 2 merton 21 breeden 3 and cox ingersoll and ross 8 however recent empirical studies see e g brown and dybvig 4 feinstone 10 and jarrow and rosenfeld 17 suggest that the underlying processes may follow

detecting periodically collapsing bubbles a markov switching unit root test this paper addresses the problem of testing for the presence of a stochastic bubble in a time series in the case that the bubble is periodically collapsing so that the asset price keeps returning to the level implied by the market fundamentals as this is essentially a problem of identifying the collapsing periods from the expanding ones we propose using a generalization of the dickey fuller test procedure which makes use of the class of markov regime switching models the potential of the new methodology is illustrated via simulation and an empirical example is given copyright 1999 john wiley sons ltd

a note on nonstationarity structural breaks and the fisher effect abstract we find empirical evidence that inflation nominal and real interest rates in the us are trend stationary with a structural break in both the unconditional mean and the drift rate of a deterministic trend which occurs shortly after the change in operating procedures of the fed in september 1979 this finding casts some doubts on cointegration tests of the long run fisher effect conducted in recent studies since the results of these tests can be affected by the existence of common structural breaks in the series we propose an alternative test of the fisher effect based on a var representation in appropriately detrended variables we find strong support for the fisher effect both in the medium term and in the long term

the early exercise of american puts abstract this paper shows that american puts on dividend paying stocks are most likely to be exercised either just after an ex dividend date or just prior to expiration at any other time the option to exercise an american put early may have less value thus put writers and converters can predict when protection against premature exercise will be most valuable the probability of early exercise is shown to be sensitive to managerial policy regarding the suspension of dividend payments transaction costs and interest rates however dividend payments are demonstrated to be the primary deterrent to early exercise

nonlinear mean reversion in the short term interest rate using a new bayesian method for the analysis of diffusion processes this article finds that the nonlinear drift in interest rates found in a number of previous studies can be confirmed only under prior distributions that are best described as informative the assumption of stationarity which is common in the literature represents a nontrivial prior belief about the shape of the drift function this belief and the use of flat priors contribute strongly to the finding of nonlinear mean reversion implementation of an approximate jeffreys prior results in virtually no evidence for mean reversion in interest rates unless stationarity is assumed finally the article documents that nonlinear drift is primarily a feature of daily rather than monthly data and that these data contain a transitory element that is not reflected in the volatility of longermaturity yields the drift of the short term interest rate is an important determinant of a wide variety of asset prices both inside and outside the boundaries of what is often called fixed income while volatilities may be estimated relatively accurately using high frequency observations of the short rate the short rate s extreme persistence makes identifying the true shape of the drift function a particularly elusive goal if our goal is merely to fit prices then the difficulty in estimating a drift function can be avoided by backing out implied drifts using a no arbitrage approach such as hull and white 1990 or heath jarrow and morton 1992 these methods bypass the true distribution entirely focusing on solving for the risk neutral drift function that is consistent with the cross section of bond prices if our goal however is to learn from prices and to be able to assess theories such as the expectations hypothesis that link short and long rates then estimating the drift function under the true measure is unavoidable in several recent articles a variety of sophisticated econometric techniques have been brought to bear on the problem in particular

regime changes in international real interest rates are they a monetary phenomenon in this paper we use the bai and perron 1998 2001 2003 methodology to test for multiple structural breaks in the mean real interest rate for 13 industrialized countries we find extensive evidence of structural breaks in the mean real interest rate for all 13 countries in an attempt to explain the breaks in international real interest rates we also test for multiple structural breaks in the mean inflation rate for the 13 countries once again we find extensive evidence of structural breaks in the mean inflation rate for all of the countries interestingly the breaks in inflation rates and real interest rates often coincide with increases decreases in the mean inflation rate as we move from one regime to the next typically associated with decreases increases in the mean real interest rate

the american put option valued analytically an analytic solution to the american put problem is derived herein the hedge ratio and other derivatives of the solution are presented the formula derived implies an exact duplicating portfolio for the american put consisting of discount bonds and stock sold short the formula is extended to consider put options on stocks paying cash dividends a polynomial expression is developed for evaluating these formulae values and hedge ratios for puts on both dividend and nondividend paying stocks are calculated tabulated and compared with values derived by numerical integration and binomial approximation as with european options evaluating an analytic formula is more efficient than approximating the stock price process or the partial differential equation by binomial or finite difference methods finally applications of this american put solution are discussed

on the fisher effect abstract we use post war quarterly data for belgium canada denmark france germany greece ireland japan the netherlands the united kingdom and the united states to examine the fisherian link between inflation and short term nominal interest rates in doing so we apply the king and watson 1997 methodology paying particular attention to the integration and cointegration properties of the variables since meaningful fisher effect tests critically depend on such properties we conclude that the data are generally rejecting the fisher effect

interest rate volatility and monetary policy in october 1979 the federal reserve shifted from an interest rate oriented operating procedure to a reserves oriented procedure it is argued in this paper that part of the very large increase in interest rate volatility which resulted from the policy switch may have been due to shifts in the parameters of the money demand equation shifts due to the adoption of a reserve aggregates operating procedure this result is derived by comparing rational expectations equilibria in a simple theoretical model under alternative policy rules this allows the variance of interest rates to be explicitly expressed as a function of the policy rule this abstract was borrowed from another version of this item

nonparametric nonlinear cotrending analysis with an application to interest and inflation in the united states given the assumption that the components of a vector time series are stationary around nonlinear deterministic time trends nonlinear cotrending is the phenomenon that one or more linear combinations of the time series are stationary around a linear trend or a constant hence the series have common nonlinear deterministic time trends in this article i develop nonparametric tests for nonlinear cotrending and i derive nonparametric estimators of the cotrending vectors i apply this approach to the federal funds rate and the consumer price index inflation rate in the united states using monthly data to analyze the price puzzle

determinants of levered portfolio performance the cumulative return to a levered strategy is determined by five elements that fit together in a simple and useful formula a previously undocumented element is the covariance between leverage and excess return to the fully invested source portfolio underlying the strategy in an empirical study of volatility targeting strategies over the 84 year period 1929 2013 this covariance accounted for a reduction in return that substantially diminished the sharpe ratio in all cases

mean reversion in interest rates new evidence from a panel of oecd countries previous studies show that the standard univariate unit root tests cannot reject the hypothesis that interest rates follow integrated processes in this paper the authors pool interest rate data of twelve oecd countries and implement a multivariate test it is found that the unit root hypothesis can be decisively rejected copyright 1996 by ohio state university press

market efficiency a theoretical distinction and so what with the aid of some simplifying assumptions the capital asset pricing model comes to dramatic conclusions about practical matters such as how to choose an investment portfolio and how to value financial assets as illustrated in this article when one particular clearly unrealistic capm assumption is replaced by a more real world version some of the dramatic practical conclusions of capm no longer follow this result has implications for financial practice research and pedagogy

an intertemporal general equilibrium model of asset prices this paper develops a continuous time general equilibrium model of a simple but complete economy and uses it to examine the behavior of asset prices in this model asset prices and their stochastic properties are determined endogenously one principal result is a partial differential equation which asset prices must satisfy the solution of this equation gives the equilibrium price of any asset in terms of the underlying real variables in the economy in this paper we develop a general equilibrium asset pricing model for use in applied research an important feature of the model is its integration of real and financial markets among other things the model endogenously determines the stochastic process followed by the equilibrium price of any financial asset and shows how this process depends on the underlying real variables the model is fully consistent with rational expectations and maximizing behavior on the part of all agents our framework is general enough to include many of the fundamental forces affecting asset markets yet it is tractable enough to be specialized easily to produce specific testable results furthermore the model can be extended in a number of straightforward ways consequently it is well suited to a wide variety of applications for example in a companion paper cox ingersoll and ross 7 we use the model to develop a theory of the term structure of interest rates many studies have been concerned with various aspects of asset pricing under uncertainty the most relevant to our work are the important papers on intertemporal asset pricing by merton 19 and lucas 16 working in a continuous time framework merton derives a relationship among the equilibrium expected rates of return on assets he shows that when investment opportunities are changing randomly over time this relationship will include effects which have no analogue in a static one period model lucas considers an economy with homogeneous individuals and a single consumption good which is produced by a number of processes the random output of these processes is exogenously determined and perishable assets are defined as claims to all or a part of the output of a process and the equilibrium determines the asset prices our theory draws on some elements of both of these papers like merton we formulate our model in continuous time and make full use of the analytical tractability that this affords the economic structure of our model is somewhat similar to that of lucas however we include both endogenous production and

portfolio optimization with factors scenarios and realistic short positions this paper presents fast algorithms for calculating mean variance efficient frontiers when the investor can sell securities short as well as buy long and when a factor and or scenario model of covariance is assumed currently fast algorithms for factor scenario or mixed factor and scenario models exist but except for a special case of the results reported here apply only to portfolios of long positions factor and scenario models are used widely in applied portfolio analysis and short sales have been used increasingly as part of large institutional portfolios generally the critical line algorithm cla traces out mean variance efficient sets when the investor s choice is subject to any system of linear equality or inequality constraints versions of cla that take advantage of factor and or scenario models of covariance gain speed by greatly simplifying the equations for segments of the efficient set these same algorithms can be used unchanged for the long short portfolio selection problem provided a certain condition on the constraint set holds this condition usually holds in practice

financial crisis and the great depression a regime switching approach i explore the timing of and effects of the u s financial crisis of the 1930s in a regime switching framework estimated conditional probabilities over the state of the financial sector suggest that a prolonged period of crisis begins not with the 1929 stock market crash but with the first banking panic of october 1930 these probabilities also suggest that the crisis persists until the introduction of federal deposit insurance in early 1934 consistent with the view that this financial crisis had real effects these conditional probabilities contain additional explanatory power for output fluctuations this is in addition to that provided by the money stock

time varying equilibrium real rates and monetary policy analysis abstract we show how a positive correlation between the equilibrium real interest rate err and trend growth matters for two widely debated issues in monetary policy first a simple taylor rule is more robust to uncertainty about the trend growth rate than suggested by some analyses of the increase in u s inflation during the 1970s because the policy mistake made when measuring the change in trend growth gets offset by the accompanying mistake in measuring the change in the err second ignoring this correlation when estimating policy rules results in coefficients that exaggerate both the degree of interest rate smoothing and the strength of the monetary authority s response to inflation

high and volatile real interest rates where does the fed fit in the federal reserve s new procedures for the conduct of monetary policy introduced on october 6 1979 have been the subject not only of considerable academic and political interest but also of intense debate b friedman 1982 roley 1982 walsh 1982 1984 mascaro and meltzer 1983 among others the fed s new operating procedures generally are perceived to have resulted in abnormally high and volatile real interest rates and thus to have contributed to if not been totally responsible for the deepest recession in postwar history in this paper we address the following question was the advent of the increased volatility and level of the real rate of interest concurrent with the fed s october 1979 change in operating procedures that is was the real rate of interest high and more volatile immediately after the october 1979 change in policy procedures in which case we might infer a connection between the fed s change in policy procedures and the increased volatility and level of the real rate or did the real rate become high and more volatile some time following the policy change which might lead us to conclude that the increased volatility and the increased level of the real rate was connected to some other event s occurring after the october 1979 policy change

on real interest rate dynamics and regime switching abstract we find evidence of regime switching dynamics in the usa and the uk real interest rates over the period 1881 2003 for the uk there is a regime in which the real interest rate displays a relatively stronger mean reversion and a regime in which it displays a relatively weaker mean reversion the former regime is characterized by a relatively larger error in the estimation of the reversion parameter and higher volatility for the usa the two regimes differ in volatility the probability of transition from one regime to another is found to be significantly related to the inflation rate regime and to the political regime the results highlight the importance of regime switching in the dynamics of the real interest rate as well as the role of inflation and political regimes in explaining this switching

volatility regimes asymmetric basis effects and forecasting performance an empirical investigation of the wti crude oil futures market abstract this study employs a flexible regime switching egarch model with student t distributed error terms to investigate whether volatility regimes and basis affect the behavior of crude oil futures returns including the conditional mean variance skewness kurtosis as well as the extent of heavy tailedness the study also examines whether volatility regimes and asymmetric basis effects can improve the forecasting accuracy the main merit of the empirical model is that the basis effect is allowed to be asymmetric and to vary across volatility regimes empirical results suggest that the conditional mean and variance respond to the basis asymmetrically and nonlinearly and that the responses of transition probabilities to the basis are symmetric furthermore the conditional higher moments are sensitive to the absolute value of basis and the heavy tailed characteristic can be greatly alleviated by taking into account the asymmetric basis effects and regime switches finally the regime switches and asymmetric basis effects play decisive roles in forecasting return volatility and tail distribution

real interest rates and macroeconomic activity while standard discussions of the transmission mechanism of monetary policy tend to assume a strong and negative link between real interest rates and real macroeconomic activity and this appears to some extent to be borne out by simulation of large scale macroeconometric models the empirical evidence suggests that the link between real interest rates and macroeconomic aggregates such as consumption and investment is in fact somewhat tenuous the weak link between interest rates and aggregate consumption may be explained at a theoretical level while the apparently weak link between interest rates and investment is more puzzling although it may be related to neglect of issues such as uncertainty and the irreversibility of investment in empirical studies similarly evidence on the link between real interest rates and economic growth is mixed and this may be related to non linearities in the relationship the survey highlights the need for further research in this area

the capital asset pricing model in economic perspective the capital asset pricing model capm is theoretically incomplete in its demand side focus risk averse investors and internally inconsistent homogeneous beliefs is not conclusively supported empirically and yet it legitimizes a notion that investors can earn higher returns by bearing undiversifiable risk our article does not merely extend the capm with more realistic assumptions it completes its original framework by including 1 risk taking investors in the investor population 2 investors who can have heterogeneous expectations or beliefs an overlooked but required condition for the capm to be an internally consistent and meaningful model of competitive financial asset pricing under uncertainty and 3 a positive sloped short run supply curve based on a reasonable interpretation of the nature of financial asset trade upon a complete economic interpretation it is shown that the equilibrium systematic risk rate of return relationship depends on whose aggregate trading activity dominates ri

testing option pricing models for several contingent claims using a generalized methodology abstract a general methodology is presented to test option pricing models for several contingent claims this methodology is used to test the black scholes model and the binomial model for call and put options simultaneously results show that these two models are inadequate for the pricing of both call and put options

the adjustment of expectations to a change in regime a study of the founding of the federal reserve the founding of the federal reserve system in 1914 led to a substantial change in the behavior of nominal interest rates the authors examine the timing of this change and the speed with which it was effected they then use data on the term structure of interest rates to determine how expectations responded their results indicate that the change in policy regime was rapid and that individuals quickly understood the new environment they were facing copyright 1987 by american economic association

an analytic approximation for the american put price black and scholes 1 derived the pricing equation for a european put when the stock price follows geometric brownian motion for this same case merton 5 derived the pricing equation for an american put with infinite time to maturity brennan and schwartz 2 rubinstein and cox 7 and parkinson 6 have developed numerical solutions for the price of an american put numerical solutions are expensive and do not provide much intuition naturally an analytic solution would be much preferred unfortunately pricing the american put requires solving a formidable and presumably intractable boundary value problem

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

impossible frontiers a key result of the capital asset pricing model capm is that the market portfolio the portfolio of all assets in which each asset s weight is proportional to its total market capitalization lies on the mean variance efficient frontier the set of portfolios having mean variance characteristics that cannot be improved upon therefore the capm cannot be consistent with efficient frontiers for which every frontier portfolio has at least one negative weight or short position we call such efficient frontiers impossible and show that impossible frontiers are difficult to avoid in particular as the number of assets n grows we prove that the probability that a generically chosen frontier is impossible tends to one at a geometric rate in fact for one natural class of distributions nearly one eighth of all assets on a frontier is expected to have negative weights for every portfolio on the frontier we also show that the expected minimum amount of short selling across frontier portfolios grows linearly with n and even when short sales are constrained to some finite level an impossible frontier remains impossible using daily and monthly u s stock returns we document the impossibility of efficient frontiers in the data

the value of early exercise in option prices an empirical investigation previous studies in the valuation of american options apparently undervalue the right of early exercise this study uses actual prices from the cboe s s p 100 option instead of model generated values deviations from the theoretical put call parity relationship are caused by the possibility of early exercise these deviations are used to infer the value of early exercise the actual value of early exercise is both statistically and economically significant as expected from theoretical considerations the value of early exercise for put options is greater than for call options

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

an analytic approximation for the american put price for options on stocks with dividends in a recent paper johnson 7 has given an analytic approximation to the american put price that delivers values that are very close to numerical solutions the limitation to the johnson approximation is that it is only applicable to put options on stocks without cash dividends this study modifies the johnson approximation to value options on stocks that have one exdividend date prior to the option expiration date and these approximation values are compared to the analytic solutions provided by the geske and johnson 6 american put option pricing model the approximation values are generally very close to the analytic solutions

unanticipated monetary policy and real economic activity some cross regime evidence abstract classical equilibrium models of business cycles predict several consequences of policy regime shift this paper examines these predictions using evidence from the post 1979 period and by comparing several pre war monetary regimes the policy invariance proposition and the lucas hypothesis receive some support from the evidence although some discrepancies remain

rational expectations econometric analysis of changes in regime an investigation of the term structure of interest rates abstract this paper is of interest both for its methodological contribution of new tools for analyzing rational expectations models and for its substantive conclusions concerning the term structure of interest rates during the monetary experiment of october 1979 the paper studies systems subject to changes in regime interpreted here as occasional discrete shifts in the parameters governing the time series behavior of exogenous economic variables the specification is shown to be quite tractable both theoretically and empirically the technique is used to analyze yields on three month treasury bills and ten year treasury bonds during 1962 to 1987 a constant parameter linear model for short term rates is shown to be inconsistent both with the univariate time series properties of short rates and with the observed bivariate relation between long and short rates under the expectations hypothesis of the term structure an alternative nonlinear model that admits the possibility of changes in regime affords a much better description of the univariate process for short rates moreover the cross equation restrictions implied by the expectations hypothesis of the term structure are consistent with the nonlinear specification indeed the residuals of the restricted relation have a standard error of only 0 8 basis points this is a third less than that of a completely unrestricted linear regression of long rates on short rates and compares with an unconditional standard deviation of long rates of 142 basis points i conclude that once the recognition by bond traders of changes in regime is taken into account the expectations hypothesis of the term structure of interest rates holds up fairly well for these data

the time varying behaviour of real interest rates a re evaluation of the recent evidence a time varying parameter model with markov switching conditional heteroscedasticity is employed to investigate two sources of shifts in real interest rates 1 shifts in the coefficients relating the ex ante real rate to the nominal rate the inflation rate and a supply shock variable and 2 unconditional shifts in the variance of the stochastic process the results underscore the importance of modelling continual change in the ex ante real rate in terms of other economic variables rather than relying on a statistical characterization that permits only a limited number of discrete jumps in the mean of the process copyright 1999 john wiley sons ltd

how does the diversity of investors beliefs affect stock price informativeness abstracta growing number of studies have investigated the role of stock prices in aggregating private information and guiding resource reallocation however this article may be the first attempt to study how the diversity of beliefs affects stock price informativeness the framework of the noisy rational expectations model shows that stock informativeness is determined by both the precision and use of private information in trading if private beliefs about the value are highly diverse the aggregate average opinion revealed in a stock s price will be more accurate and thus more informative as the price becomes more informative however individual investors will rely less on their private information when this occurs less private information will be absorbed in price which in turn reduces price informativeness our model shows that the relationship between belief diversity and price informativeness is u shaped in equilibrium

valuation of american options on foreign currency abstract pricing models for american call and put options on foreign currency are derived herein these models are used to investigate the efficiency of the market for foreign currency options the evidence presented here indicates that market prices for these options deviate substantially from their corresponding model prices in addition it is shown that a hedging strategy executed at transaction prices can be used to translate an observed deviation of market from model prices into positive excess profits however these profits are eliminated if the strategy is executed at bid and offer prices

testing for real effects of monetary policy regime shifts the rational expectations revolution in macroeconomics has forced economists to think about macroeconomic policy in terms of alternative policy rules or regimes huizinga and mishkin 1986 for example have argued recently that monetary policy has important effects on the ex ante real rate of interest and as evidence they cite apparent changes in the stochastic properties of the real rate coinciding with major shifts in monetary policy regimes more specifically they claim that in the post war period the real rate process in the united states shifted in october 1979 the month the fed changed operating procedures and in october 1982 when the fed deemphasized monetary aggregates mishkin 1986 has argued that these results suggest monetary policy not fiscal deficits bears responsibility for high u s real interest rates in the early 1980s because an understanding of the impact of monetary policy shifts on real interest rates is important for many issues in macroeconomics suggested methods for detecting real rate shifts deserve careful scrutiny the method employed by huizinga and mishkin 1986 tests for shifts in a projection equation of the expost real rate on a set of information variables such as the nominal interest rate and past inflation this projection equation approach is straightforward to apply and therefore potentially of use in testing a variety of macroeconomic hypotheses such as the neutrality of money for the projection equation approach to be valid it is desirable that it exhibit shifts if and only if the true real rate generating process has shifted the purpose of this paper is to show that changes in the real rate process while sufficient to

an empirical examination of the pricing of american put options this study is an ex post performance test comparing the accuracy of an american model to a european model for valuing listed options specifically the geske and johnson american put valuation model is compared with the black and scholes european put model on average both models undervalue relative to market prices put options however the geske and johnson model values are significantly closer to market prices than are the black and scholes values

will my risk parity strategy outperform the authors gauged the return generating potential of four investment strategies value weighted 60 40 fixed mix and unlevered and levered risk parity they report three main findings 1 even over periods lasting decades the start and end dates of a backtest can have a material effect on results 2 transaction costs can reverse ranking especially if leverage is used and 3 a statistically significant return premium does not guarantee outperformance over reasonable investment horizons see comments and response on this article

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

modeling the dynamics of chinese spot interest rates using the daily data of chinese 7 day repo rates from january 1 1997 to december 31 2008 this paper tests a variety of popular spot rate models including single factor diffusion garch markov regime switching and jump diffusion models we document that chinese spot rates are subject to both market forces and administrative forces garch regime switching and jump diffusion models capture some important features of the dynamics of chinese spot rates but all models under study are overwhelmingly rejected we further explore possible sources of model misspecification using diagnostic tests

real and nominal interest rates under uncertainty the fisher theorem and the term structure this paper examines the relation between nominal and real interest rates and the nominal and real term structure under uncertainty we show that two separate risk terms cause the fisher theorem to fail one risk term is related only to the variability of money prices while the other is related to the purchasing power riskiness of the nominal bond monetary policy can affect the value of both these risk terms we also show that the pure expectations hypothesis of the term structure fails for both real and nominal bonds because of risk premia even if the economy is neutral with respect to monetary policy monetary policy can alter the nominal term structure

regime non stationarity in the us uk real exchange rate abstract using a markov switching extension of the adf regression we find evidence that the us uk real exchange rate is stationary in periods when it is in a low volatility regime and nonstationary when it is in a high volatility regime

simulating security markets in dynamic and equilibrium modes an asynchronous discrete time model run in dynamic mode can model the effects on market prices of changes in strategies leverage and regulations or the effects of different return estimation procedures and different trading rules run in equilibrium mode it can be used to arrive at equilibrium expected returns

do expected shifts in inflation affect estimates of the long run fisher relation recent empirical studies suggest that nominal interest rates and expected inflation do not move together one for one in the long run a finding at odds with many theoretical models this article shows that these results can be deceptive when the process followed by inflation shifts infrequently we characterize the shifts in inflation by a markov switching model based upon this model s forecasts we reexamine the long run relationship between nominal interest rates and inflation interestingly we are unable to reject the hypothesis that in the long run nominal interest rates reflect expected inflation one for one

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

the behavior of u s short term interest rates since october 1979 short term interest rates in the united states have been too high since october 1979 in the sense that both unconditional and conditional forecasts based on an estimated vector autoregression model summarizing the prior experience under predict short term interest rates during this period although a non structural model cannot directly answer the question of why this has been so comparisons of alternative conditional forecasts point to the post october 1979 relationship between the growth of real income and the growth of real money balances as closely connected to the level and pattern of short term interestrates this finding is consistent with the authors earlier conclusion based on analysis of a small structural macroeconometric model that the high average level of interest rates has been due to a combination of slow growth of nominal money supply and continuing price inflation which together have kept real balances small in relation to prevailing levels of economic activity this abstract was borrowed from another version of this item

inflation presidents fed chairs and regime shifts in the u s real interest rate several recent papers agree on the existence of significant regime shifts in the u s real interest rate but disagree on the proximate causes of the shifts caporale and grier 2000 point to large political changes as correlates while rapach and wohar 2004 show that real rate breaks are correlated with inflation regime shifts and argue that the inflation regime changes cause the real rate shifts in this paper we show that controlling for the timing of changes in the inflation regime dummy variables representing either party change in the presidency or change in the identity of the fed chair are still strongly significant for explaining real interest rate fluctuations when we control for a fixed coefficient linear relationship between inflation and the real rate we find two real rate regime shifts that line up almost exactly with the accessions of paul volcker and alan greenspan even if we first let inflation regime switches explain the real rate and then look for regime shifts in the residuals we find almost exactly the same two breaks these results imply that fed chairs sometimes differ with respect to their preferred equilibrium real interest rate

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

long and short term interest rates in a risky world abstract the paper develops and tests a general equilibrium model in which variability or risk affects the choice of portfolios our measures of variability include only the variability of unanticipated growth in monetary and non monetary aggregates and our tests use data ending with the change in federal reserve procedures in october 1979 we find that increased variability of unanticipated money growth raises demands for debt and money and reduces the demand for real capital interest rates on both short and long term debt rise by a risk premium we estimate the size of the risk premium before and after the october 1979 change and we show that the change in federal reserve procedures moved the economy to a less efficient point

nonparametric tests of alternative option pricing models using all reported trades and quotes on the 30 most active cboe option classes from august 23 1976 through august 31 1978

short term interest rates as predictors of inflation on testing the hypothesis that the real rate of interest is constant in an innovative and provocative paper in this review eugene fama presents evidence which appears to be consistent with the joint hypothesis that the real rate of interest ignoring taxes is a constant and that the market for u s treasury bills is efficient in the sense of embodying rational expectations those findings are strikingly at variance with a long list of previous studies which seemed to support the view that the real rate of interest varies over time and can be related to economic variables such as real output monetary policy and so forth 2 the methodologies which lead to these contradictory conclusions are quite different previous studies had followed the lead of irving fisher by relating nominal interest rates to distributed lags on past rates of inflation 3 these distributed lags are generally interpreted as approximations to the market s expected rate of inflation and thus any remaining variation is attributed to variation in the real rate 4 fama s methodology on the other hand draws on the fact that the difference between the market interest rate and the subsequently observed rate of inflation the ex post real interest rate consists by definition of the ex ante real interest rate plus a pure forecasting error 5 the hypothesis of market efficiency implies that these forecasting errors must be serially random thus observing ex post real rates is equivalent to observing ex ante real rates with random measurement error these errors of course confound the problem of identifying variation in the ex ante real rate in this paper we will argue that the relative magnitude of these measurement errors is such that the tests carried out by fama were not powerful enough to reject the joint hypothesis that the ex ante real rate is a constant and expectations are rational more powerful tests which are presented in this paper using the same data do lead to rejection of that hypothesis of course rejection

extracting inflation expectations and inflation risk premia from the term structure a joint model of the uk nominal and real yield curves abstract this paper analyses the uk interest rate term structure over the period since october 1992 when the united kingdom adopted an explicit inflation target using an affine term structure model estimated using both government bond yields and survey data the model imposes no arbitrage restrictions across nominal and real yields which enables interest rates to be decomposed into expected real policy rates expected inflation real term premia and inflation risk premia the model is used to shed light on major developments over the period including the impact of bank of england independence and the low real bond yield conundrum