Abstract

http://ssrn.com/abstract=1974033
 
 

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Term Structure Modeling with Structural Breaks: A Simple Arbitrage-Free Approach


Wachindra Bandara


George Washington University - Department of Finance

Richard Munclinger


Federal Home Loan Mortgage Corporation (FHLMC)

December 17, 2011


Abstract:     
Economic time-series are susceptible to infrequent but severe structural breaks that stem from banking crises, changes in government policy or shifts in consumer con fidence. We present an affine, arbitrage-free, regime-switching dynamic Nelson-Siegel model of the term structure that identifies structural breaks. We develop the model in continuous time and present a class of general affine hidden Markov models of the term structure. We highlight the assumptions that are necessary to reach tractable versions in this class such as the Dai, Singleton and Yang (2007) model and the arbitrage-free regime-switching Nelson and Siegel model. We estimate an arbitrage-free hidden Markov Nelson Siegel model on historical yield curve data via a multi-regime approximate Kalman filter. We contrast the model to single-regime alternatives and conclude that our model performs better in-sample. Using likelihood ratio tests, we show that regimes are driven by long term means, mean reversions, measurement and transition covariance matrices. The regimes conform to periods of expansionary and restrictive monetary policy, but do not coincide exactly with recessions. Our regimes capture the NBER recession dates, but persist long after the recessions have ended.

Number of Pages in PDF File: 40

Keywords: Term structure, Nelson-Siegel models, regime switching, arbitrage free models

JEL Classification: C53, C58, E43

working papers series


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Date posted: December 18, 2011 ; Last revised: November 19, 2012

Suggested Citation

Bandara, Wachindra and Munclinger, Richard, Term Structure Modeling with Structural Breaks: A Simple Arbitrage-Free Approach (December 17, 2011). Available at SSRN: http://ssrn.com/abstract=1974033 or http://dx.doi.org/10.2139/ssrn.1974033

Contact Information

Wachindra Bandara (Contact Author)
George Washington University - Department of Finance ( email )
2023 G Street
Washington, DC 20052
United States
Richard Munclinger
Federal Home Loan Mortgage Corporation (FHLMC) ( email )
8200 Jones Branch Road
McLean, VA 22101
United States
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