Kanne, Stefan; Korn, Olaf; Uhrig-Homburg, Marliese - 2016 - Current version: July 2016
We provide evidence of a strong effect of the underlying stock's illiquidity on option prices by showing that the … average absolute difference between historical and implied volatility increases with stock illiquidity. This pattern … chosen illiquidity measure, the measure of option expensiveness, and the return period. …