Estimating an affine term structure model of interest rates with correlated noise.

Kalman filtering for the affine term structure model of interest rates is typically applied under the assumption of white noise. However, correlated noise frequently occurs during actual data processing. The accuracy and reliability of the filter are compromised if the correlated noise is assumed to...

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Main Authors: Shu Wu, Rende Li
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0318076
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author Shu Wu
Rende Li
author_facet Shu Wu
Rende Li
author_sort Shu Wu
collection DOAJ
description Kalman filtering for the affine term structure model of interest rates is typically applied under the assumption of white noise. However, correlated noise frequently occurs during actual data processing. The accuracy and reliability of the filter are compromised if the correlated noise is assumed to be white noise. This paper develops a measurement expansion scheme for the affine term structure model based on the whitening properties of the Kalman filter, enabling latent factor estimation under the general assumption of correlated noise. The simulation results indicate that the estimation based on the measurement expansion scheme achieves higher accuracy compared to the traditional method.
format Article
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institution DOAJ
issn 1932-6203
language English
publishDate 2025-01-01
publisher Public Library of Science (PLoS)
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spelling doaj-art-c4e08f74f41a4dc08a18b76d74aae2772025-08-20T02:56:05ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01202e031807610.1371/journal.pone.0318076Estimating an affine term structure model of interest rates with correlated noise.Shu WuRende LiKalman filtering for the affine term structure model of interest rates is typically applied under the assumption of white noise. However, correlated noise frequently occurs during actual data processing. The accuracy and reliability of the filter are compromised if the correlated noise is assumed to be white noise. This paper develops a measurement expansion scheme for the affine term structure model based on the whitening properties of the Kalman filter, enabling latent factor estimation under the general assumption of correlated noise. The simulation results indicate that the estimation based on the measurement expansion scheme achieves higher accuracy compared to the traditional method.https://doi.org/10.1371/journal.pone.0318076
spellingShingle Shu Wu
Rende Li
Estimating an affine term structure model of interest rates with correlated noise.
PLoS ONE
title Estimating an affine term structure model of interest rates with correlated noise.
title_full Estimating an affine term structure model of interest rates with correlated noise.
title_fullStr Estimating an affine term structure model of interest rates with correlated noise.
title_full_unstemmed Estimating an affine term structure model of interest rates with correlated noise.
title_short Estimating an affine term structure model of interest rates with correlated noise.
title_sort estimating an affine term structure model of interest rates with correlated noise
url https://doi.org/10.1371/journal.pone.0318076
work_keys_str_mv AT shuwu estimatinganaffinetermstructuremodelofinterestrateswithcorrelatednoise
AT rendeli estimatinganaffinetermstructuremodelofinterestrateswithcorrelatednoise