Fine-tune your smile: Correction to Hagan et al

Obloj, J

Abstract:

In this small note we use results derived in Berestycki et al. to correct the celebrated formulae of Hagan et al. We derive explicitly the correct zero order term in the expansion of the implied volatility in time to maturity. The new term is consistent as β → 1. Furthermore, numerical simulations show that it reduces or eliminates known pathologies of the earlier formula.

Publication status:

Published

Peer review status:

Reviewed (Other)

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APA Style

Obloj, J. (2008). Fine-tune your smile: Correction to Hagan et al. Wilmott Magazine, 2008.

MLA Style

Obloj, J. “Fine-Tune Your Smile: Correction to Hagan Et Al.” Wilmott Magazine, vol. 2008, Willmott, 2008.

Chicago Style

Obloj, J. 2008. “Fine-Tune Your Smile: Correction to Hagan Et Al.” Wilmott Magazine 2008.
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