Randomization and the American Put
- 1 July 1998
- journal article
- research article
- Published by Oxford University Press (OUP) in The Review of Financial Studies
- Vol. 11 (3) , 597-626
- https://doi.org/10.1093/rfs/11.3.597
Abstract
While American calls on non-dividend-paying stocks may be valued as European, there is no completely explicit exact solution for the values of American puts. We use a technique called randomization to value American puts and calls on dividend-paying stocks. This technique yields a new semiexplicit approximation for American option values in the Black-Scholes model. Numerical results indicate that the approximation is both accurate and computationally efficient.Keywords
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