An analytically tractable time-changed jump-diffusion default intensity model

Name: Kind
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Abstract: We present a stochastic default intensity model where the intensity follows a tractable jump-diffusion process obtained by applying a deterministic change of time to a non mean-reverting square root jump-diffusion process. The model generates higher implied volatilities for default swaptions than mean-reverting versions, consistent with volatility levels observed on the market.

Published on	5 September 2011
Authors	Naoufel El-Bachir Damiano Brigo
Series Reference	2008-06