Bias Reduction in European Option Pricing

57 Pages Posted: 11 Jun 2004 Last revised: 17 Aug 2008

Date Written: June 22, 2004


Pricing European options using price estimates of the underlying security that contain noise, create a bias in the option price. We present a technique to reduce this bias. Using ideas from the Longstaff and Schwartz (2001) algorithm, we prove that when the price of the underlying security belongs to a space spanned by a set of basis functions, the bias reduction technique can effectively remove the option price bias. In this setting we prove (i) the option price bias can be controlled by increasing the computational burden (ii) the proposed estimator for the price of the underlying security is less volatile than the crude Monte Carlo estimate and (iii) the resulting option price estimator is consistent. The technique is particular efficient when a lot of computational effort has to be allocated to reduce the option price bias.

Suggested Citation

Huge, Brian Norsk and Rom, Niels, Bias Reduction in European Option Pricing (June 22, 2004). EFA 2004 Maastricht Meetings Paper No. 2862, Available at SSRN: or

Brian Norsk Huge

Saxo Bank ( email )


Niels Rom (Contact Author)

Nordea ( email )


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