6533b859fe1ef96bd12b6e37

RESEARCH PRODUCT

THE CARMA INTEREST RATE MODEL

Arne AndresenFred Espen BenthValeriy ZakamulinSteen Koekebakker

subject

Vasicek modelBond optionInterest rate model short rate forward rate term structure CARMA process bond pricing bond option pricing yield curve volatility curve calibrationImplied volatilityBond valuationShort-rate modelForward rateShort rateForward volatilityEconometricsEconomicsLIBOR market modelYield curveVolatility (finance)General Economics Econometrics and FinanceFinanceAffine term structure modelRendleman–Bartter modelMathematics

description

In this paper, we present a multi-factor continuous-time autoregressive moving-average (CARMA) model for the short and forward interest rates. This model is able to present an adequate statistical description of the short and forward rate dynamics. We show that this is a tractable term structure model and provides closed-form solutions to bond prices, yields, bond option prices, and the term structure of forward rate volatility. We demonstrate the capabilities of our model by calibrating it to a panel of spot rates and the empirical volatility of forward rates simultaneously, making the model consistent with both the spot rate dynamics and forward rate volatility structure.

http://www.worldscinet.com/cgi-bin/details.cgi?type=pdf&id=pii:S0219024914500083