The Irony in the Derivatives Discounting
Marc P. A. Henrard
OpenGamma; University College London - Department of Mathematics
July 1, 2007
Wilmott Magazine, pp. 92-98, July 2007
A simple and fundamental question in derivatives pricing is how (contingent) cash-flows should be discounted. As cash can generally not be invested at Libor, the Libor curve is probably not the right discounting curve, even for Libor derivatives. The impact on derivative pricing of changing the discounting curve is discussed. The pricing formulas for vanilla products are revisited in the funding framework described.
Keywords: Cost of funding, coherent pricing, interest rate derivative pricing, Libor, irony
JEL Classification: G13, E43, C63
Date posted: February 25, 2009
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