Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/19679 
Year of Publication: 
2007
Series/Report no.: 
Discussion Paper Series 1 No. 2007,02
Publisher: 
Deutsche Bundesbank, Frankfurt a. M.
Abstract: 
This paper studies a nonlinear one-factor term structure model in discrete time. The single factor is the short-term interest rate, which is modeled as a self-exciting threshold autoregressive (SETAR) process. Our specification allows for shifts in the intercept and the variance. The process is stationary but mimics the nearly I(1) dynamics typically encountered with interest rates. In comparison with a linear model, we find empirical evidence in favor of the threshold model for Germany and the US. Based on the estimated short-rate dynamics we derive the implied arbitrage-free term structure of interest rates. Since analytical solutions are not feasible, bond prices are computed by means of Monte Carlo integration. The resulting term structure exhibits properties that are qualitatively similar to those observed in the data and which cannot be captured by the linear Gaussian one-factor model. In particular, our model captures the nonlinear relation between long rates and the short rate found in the data.
Subjects: 
Non-affine term structure models
SETAR models
Asset pricing
JEL: 
E43
G12
C22
Document Type: 
Working Paper

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