Time-Changed Levy processes, at Courant Institute, New York University, February 26, 2008.

Market pricing of economic risks and stock returns (slides), at Midwest Finance Association meetings, San Antonio, March 1, 2008.

A simple robust link between American puts and credit insurance (slides), at Finance Department Brown Bag Seminar, Baruch College, New York, March 4, 2008.

A simple robust link between American puts and credit insurance (slides), at Bloomberg, New York, March 12, 2008.

Hedging barriers (slides), at Risk Conference on Modeling and Hedging Using FX Options, New York, March 13, 2008.

A simple robust link between American puts and credit insurance (slides), at Quantitative Finance & Econometrics Seminar, New York University, March 31, 2008.

A simple robust link between American puts and credit insurance (slides), at JP Morgan Chase, New York, May 1, 2008.

A simple robust link between American puts and credit insurance (slides), at Stanford University, May 9, 2008.

A simple robust link between American puts and credit insurance (slides), at SoFiE (The Society for Financial Econometrics) Inaugural Conference, New York, June 4-6, 2008.

A simple robust link between American puts and credit insurance (slides), at Western Finance Association meetings, Waikoloa, Hawaii, June 22-25, 2008.

Computational challenges in estimating option pricing models, at Computational Finance Workshop, Shanghai, China, July 4, 2008.