, Volume 6, Issue 2, pp 107-128

On the Robustness of Least-Squares Monte Carlo (LSM) for Pricing American Derivatives

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This paper analyses the robustness of Least-Squares Monte Carlo, a technique proposed by Longstaff and Schwartz (2001) for pricing American options. This method is based on least-squares regressions in which the explanatory variables are certain polynomial functions. We analyze the impact of different basis functions on option prices. Numerical results for American put options show that this approach is quite robust to the choice of basis functions. For more complex derivatives, this choice can slightly affect option prices.

This revised version was published online in June 2006 with corrections to the Cover Date.