Multi-Factor Cox-Ingersoll-Ross Models of the Term Structure PDF Download

Author: Ren-Raw Chen
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Languages : en
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This paper presents a method for estimating multi-factor versions of the Cox, Ingersoll, Ross (1985b) model of the term structure of interest rates. The fixed parameters in one, two, and three factor models are estimated by applying an approximate maximum likelihood estimator in a state-space model using data for the U.S. treasury market. A nonlinear Kalman filter is used to estimate the unobservable factors. Multi-factor models are necessary to characterize the changing shape of the yield curve over time, and the statistical tests support the case for two and three factor models. A three factor model would be able to incorporate random variation in short term interest rates, long term rates, and interest rate volatility.

Author: Louis Scott
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Languages : en
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In this paper, the multi-factor Cox, Ingersoll, Ross (CIR) model of the term structure is extended by adding a deterministic component to the interest rate equation. This extra component makes the model flexible enough to match any initial term structure, while retaining the other features of the multi-factor CIR model. Current values for the random state variables can be set so that the model provides a good fit to the term structure, and the deterministic component can be used to fine tune the model for an exact fit. The model has nonnegative interest rates and relies on several random factors to capture the potential variability of the term structure, and it is easy to implement. In the paper, I present fast, closed form solutions for forward rates, futures rates, and several European interest rate options. Numerical methods for pricing other more complex interest rate derivatives are easy to implement because the model is Markovian; the distribution for interest rates each period depends on the current values for the state variables that determine the instantaneous interest rate. An important consequence of this feature is that nodes in a lattice model recombine. The paper also includes an application in which the model is calibrated to initial term structures in both the Treasury market and the Eurodollar futures market.

Author: Purnendu Nath
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Languages : en
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Estimates are made of multi-factor versions of the Cox-Ingersoll-Ross model of the term structure of interest rates using the Kalman filter. Estimates are obtained using weekly UK Gilt-edged market data over the period 1982-1997. Empirical results support the need for a multi-factor model and support recent findings of Babbs and Nowman for this market.

Author: Gennady Medvedev
Publisher:
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Languages : en
Pages : 7

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Historically, the first popular model of the dynamics of the interest rate is the Vasiček model proposed in 1977. It was considered in the preceding article. In this model, the interest rate has a normal distribution, which is obviously economically untenable, because in terms of the interest rate can not take negative values. At the same time, this model has been used by many for the reason that in many cases the ratio between the average and variance of real rates is such that the probability of their negative values appears very small. At the same time, the analysis of Vasicek's model and the prices of assets based on it is very simple, since it leads to linear problems. Later in 1985, Cox, Ingersoll and Ross proposed another model, also called a "square root model," under which the interest rate assumes only non-negative values and has a gamma distribution. Analysis of interest rates and asset prices based on this model also allows for analytical results, but they are significantly more difficult, since they suggest solving non-linear problems. The possibility of obtaining analytical results is the main advantage of affine models. Analytical results are important, because otherwise yields should be calculated either by Monte Carlo methods or by methods of solving partial differential equations. Both of these approaches are computationally time-consuming, especially when model parameters need to be estimated using samples from bond yield data. Therefore, the literature on determining the bond prices, starting with the works of Vasiček and Cox, Ingersoll and Ross, focused on solutions in a closed form. From a practical point of view it is interesting to consider the problem of how much the results obtained with the help of these models differ. The main purpose of this article is to obtain analytical solutions when analyzing the time structure of interest rates for the yield of zero-coupon bonds using the Cox-Ingersoll-Ross model in a single-factor and multifactor variants. It also compares the yield curves and forward curves resulting from the short-term interest rate behavior models mentioned above.

Author: Ren-Raw Chen
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Languages : en
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We examine valuation of interest rate options in multifactor versions of the Cox-Ingersoll-Ross model, including European options on discount bonds, European options on Eurodollar futures, and caps on floating interest rates. Valuation models for options on coupon bonds and coupon bond futures are also discussed. Standard solution techniques for such problems require numerical integration of a joint probability distribution, which becomes exceedingly time-consuming when there are more than two factors. We describe an alternative approach based on Fourier inversion methods that is much more efficient for solving multifactor models. In one example, using a three- factor model to price interest rate caps, our procedure reduces computation time from 2.83 hours to 1.93 seconds. Using this approach, we show that multifactor Cox-Ingersoll- Ross models generate prices for interest rate options that differ significantly from prices generated by Black's model when options with long-term expirations are valued. When a multifactor model is used for hedging, the hedge portfolio requires additional securities, and conventional formulas for hedge ratios must be modified.

Author: Wolfgang Lemke
Publisher: Springer Science & Business Media
ISBN: 3540283447
Category : Business & Economics
Languages : en
Pages : 224

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This book has been prepared during my work as a research assistant at the Institute for Statistics and Econometrics of the Economics Department at the University of Bielefeld, Germany. It was accepted as a Ph.D. thesis titled "Term Structure Modeling and Estimation in a State Space Framework" at the Department of Economics of the University of Bielefeld in November 2004. It is a pleasure for me to thank all those people who have been helpful in one way or another during the completion of this work. First of all, I would like to express my gratitude to my advisor Professor Joachim Frohn, not only for his guidance and advice throughout the com pletion of my thesis but also for letting me have four very enjoyable years teaching and researching at the Institute for Statistics and Econometrics. I am also grateful to my second advisor Professor Willi Semmler. The project I worked on in one of his seminars in 1999 can really be seen as a starting point for my research on state space models. I thank Professor Thomas Braun for joining the committee for my oral examination.

Author: Choongtze Chua
Publisher:
ISBN:
Category :
Languages : en
Pages : 168

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Author: International Monetary Fund
Publisher: International Monetary Fund
ISBN: 1455209589
Category : Business & Economics
Languages : en
Pages : 64

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This paper discusses the estimation of models of the term structure of interest rates. After reviewing the term structure models, specifically the Nelson-Siegel Model and Affine Term- Structure Model, this paper estimates the terms structure of Treasury bond yields for the United States with pre-crisis data. This paper uses a software developed by Fund staff for this purpose. This software makes it possible to estimate the term structure using at least nine models, while opening up the possibility of generating simulated paths of the term structure.

Author: Andrew Kaplin
Publisher:
ISBN:
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Languages : en
Pages : 44

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We evaluate the classical Cox, Ingersoll and Ross (1985) (CIR) model using data on LIBOR, swap rates and caps and swaptions. With three factors the CIR model is able to fit the term structure of LIBOR and swap rates rather well. The model is able to match the hump shaped unconditional term structure of volatility in the LIBOR-swap market. However, statistical tests indicate that the model is misspecified. In particular the pricing errors are related to the slope of the swap yield curve. The economic importance of these shortcomings is highlighted when the model is confronted with data on cap and swaption prices. Pricing errors are large relative to the bid-ask spread in these markets. The model tends to overvalue shorter maturity caps and undervalue longer maturity caps. With only one or two factors, the model also tends to undervalue swaptions. Our findings point out the need for evaluating term structure models using data on derivative prices.

Author: Ying He
Publisher: International Monetary Fund
ISBN: 1463923260
Category : Business & Economics
Languages : en
Pages : 33

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The paper assesses estimates of term structure models for the United States. To this end, this paper first describes the mathematics underlying two types of term structure models, namely the Nelson-Siegel and Cox, Ingersoll and Ross family of models, and the estimation techniques. It then presents estimations of some of specific models within these families of models?three-factor Nelson-Siegel Model, four-factor Svensson model, and preference-free, two-factor Cox, Ingersoll and Roll model?for the United States from 1972 to mid 2011. It subsequently provides an assessment of the estimations. It concludes that these estimations of the term structure models successfully capture the dynamics of the term structure in the United States.