The purpose of this paper is to propose discrete-time term structure models where the historical dynamics of the factor (xt) is given, in the univariate case, by a Gaussian AR(p) process, and, in the multivariate case, by a Gaussian n-dimensional VAR(p) process. The factor (xt) is considered as a latent or an observable variable and, in the second case, (xt) is given by the short rate (in the scalar setting) or by a vector of several yields (in the multivariate setting). We consider an exponential-affine stochastic discount factor (SDF) with a stochastic factor risk correction coefficient defined, at time t, as an affine function of Xt = (xt, . . . , xt?p+1)0 and, consequently, the yield-to-maturity formula at time t is an affine function of the p most recent lagged values of xt+1. We study the Gaussian AR(p) and the Gaussian VAR(p) Factor-Based Term Structure Models. We investigate, under the risk-neutral and the S-forward probability, the Moving Average (or discrete-time Heath, Jarrow and Morton) representation of the yield and short-term forward rate processes. This representation gives the possibility to exactly replicate the currently-observed yield curve. We also study the problem of matching the theoretical and currently-observed market term structure by means of the Extended AR(p) approach.
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Paper provided by Banque de France in its series Documents de Travail with number
189.
Find related papers by JEL classification: C1 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: General C5 - Mathematical and Quantitative Methods - - Econometric Modeling G1 - Financial Economics - - General Financial Markets
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Christian Gourieroux ; Alain Monfort ; Vassilis Polimenis, 2005.
"Affine Model for Credit Risk Analysis,"
Working Papers
2005-44, Centre de Recherche en Economie et Statistique, revised 2005.
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Henri Bertholon ; Alain Monfort ; Fulvio Pegoraro, 2007.
"Econometric Asset Pricing Modelling,"
Working Papers
2007-18, Centre de Recherche en Economie et Statistique, revised 2007.
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