Observational Equivalence of Discrete String Models and Market Models
AbstractIn this paper we show that, contrary to the claim made in Longsta, Santa-Clara, and Schwartz (2001a) and Longsta, Santa-Clara, and Schwartz (2001b), discrete string models are not more parsimonious than market models.In fact, they are found to be observationally equivalent.We derive that, for the estimation of both a K-factor discrete string model and a K-factor Libor market model for N forward rates the number of parameters that needs to be estimated equals NK .K (K .1) /2 and not K (K +1)/2 and NK, respectively.
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Bibliographic InfoPaper provided by Tilburg University, Center for Economic Research in its series Discussion Paper with number 2002-28.
Date of creation: 2002
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string model; market model;
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- G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
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