Modelling and forecasting short-term interest rate volatility: A semiparametric approach

Ai Jun Hou and Sandy Suardi

Journal of Empirical Finance, 2011, vol. 18, issue 4, 692-710

Abstract: This paper employs a semiparametric procedure to estimate the diffusion process of short-term interest rates. The Monte Carlo study shows that the semiparametric approach produces more accurate volatility estimates than models that accommodate asymmetry, level effect and serial dependence in the conditional variance. Moreover, the semiparametric approach yields robust volatility estimates even if the short rate drift function and the underlying innovation distribution are misspecified. Empirical investigation with the U.S. three-month Treasury bill rates suggests that the semiparametric procedure produces superior in-sample and out-of-sample forecast of short rate changes volatility compared with the widely used single-factor diffusion models. This forecast improvement has implications for pricing interest rate derivatives.

Keywords: Interest; rates; GARCH; modelling; Nonparametric; method; Volatility; estimation; Forecasts (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:empfin:v:18:y:2011:i:4:p:692-710

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