Financial/Actuarial Mathematics Seminar

Academic Year 2005-2006: Thursdays 3:10-4:00, 3088 East Hall



Interest rate caps "smile" too!

But can the LIBOR market models capture it?

Haitao Li

Department of Finance, Ross School of Business, University of Michigan

February 23, 2006



Abstract

Using three years of interest rate caps price data, we provide one of the first comprehensive documentations of volatility smiles in the caps market. Using a multifactor term structure model with stochastic volatility and jumps, we develop a closed-form solution for cap prices and test the performance of our new models in capturing the volatility smile. We show that although a three-factor stochastic volatility model can price at-the-money caps well, significant negative jumps in interest rates are needed to capture the smile. The volatility smile contains information that is not available using only at-the-money caps, and this information is important for understanding term structure models.


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