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Year: 2007 Publisher: Cambridge, Mass. National Bureau of Economic Research
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Year: 2008 Publisher: National Bureau of Economic Research
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Year: 2015 Publisher: Zurich Swiss National Bank
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Year: 2007 Publisher: Cambridge, Mass. NBER
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Year: 2008 Publisher: Cambridge, Mass. NBER
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Year: 2007 Publisher: Cambridge, Mass. National Bureau of Economic Research
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We derive the class of arbitrage-free affine dynamic term structure models that approximate the widely-used Nelson-Siegel yield-curve specification. Our theoretical analysis relates this new class of models to the canonical representation of the three-factor arbitrage-free affine model. Our empirical analysis shows that imposing the Nelson-Siegel structure on this canonical representation greatly improves its empirical tractability; furthermore, we find that improvements in predictive performance are achieved from the imposition of absence of arbitrage.
Book
Year: 2008 Publisher: Cambridge, Mass. National Bureau of Economic Research
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The Svensson generalization of the popular Nelson-Siegel term structure model is widely used by practitioners and central banks. Unfortunately, like the original Nelson-Siegel specification, this generalization, in its dynamic form, does not enforce arbitrage-free consistency over time. Indeed, we show that the factor loadings of the Svensson generalization cannot be obtained in a standard finance arbitrage-free affine term structure representation. Therefore, we introduce a closely related generalized Nelson-Siegel model on which the no-arbitrage condition can be imposed. We estimate this new arbitrage-free generalized Nelson-Siegel model and demonstrate its tractability and good in-sample fit.
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