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An Attempt at Pricing Zero-Coupon Bonds under the Vasicek Model with a Mean Reverting Stochastic Volatility Factor
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
2023 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Ett Försök att Prisätta Nollkupongobligationer med hjälp av Vasicekmodellen med en Jämviktspendlande Stokastisk Volatilitetsfaktor (Swedish)
Abstract [en]

Empirical evidence indicates that the volatility in asset prices is not constant, but varies over time. However, many simple models for asset pricing rest on an assumption of constancy. In this thesis we analyse the zero-coupon bond price under a two-factor Vasicek model, where both the short rate and its volatility follow Ornstein-Uhlenbeck processes. Yield curves based on the two-factor model are then compared to those obtained from the standard Vasicek model with constant volatility. The simulated yield curves from the two-factor model exhibit "humps" that can be observed in the market, but which cannot be obtained from the standard model.

Abstract [sv]

Det finns empiriska bevis som indikerar att volatiliteten i finansiella marknader inte är konstant, utan varierar över tiden. Dock så utgår många enkla modeller för tillgångsprisättning från ett antagande om konstans. I det här examensarbetet analyserar vi priset på nollkupongobligationer under en stokastisk Vasicekmodell, där både den korta räntan och dess volatilitet följer Ornstein-Uhlenbeck processer. De räntekurvor som tas fram genom två-faktormodellen jämförs sedan med de kurvor som erhålls genom den enkla Vasicekmodellen med konstant volatilitet. De simulerade räntekurvorna från två-faktormodellen uppvisar "pucklar" som kan urskiljas i marknaden, men som inte kan erhållas genom standardmodellen.

Place, publisher, year, edition, pages
2023. , p. 49
Series
TRITA-SCI-GRU ; 2023:059
Keywords [en]
Zero-coupon bond, Vasicek model, Two-factor interest rate model, Stochastic volatility.
Keywords [sv]
Nollkupongobligation, Vasicek model, Räntemodell med två faktorer, Stokastisk volatilitet.
National Category
Other Mathematics
Identifiers
URN: urn:nbn:se:kth:diva-328099OAI: oai:DiVA.org:kth-328099DiVA, id: diva2:1761955
Subject / course
Financial Mathematics
Educational program
Master of Science - Applied and Computational Mathematics
Supervisors
Examiners
Available from: 2023-06-02 Created: 2023-06-02 Last updated: 2023-06-02Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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