lower price errors in the underlying. The more popular options are, the more quickly information is incorporated in the …

-style options. We introduce a skewed version of the Student-t distribution, whose main advantage is that its shape depends on only … to compare different distributions and use the parameters as inputs to price other options. We explain the method … provides a better fit to market prices of options than the Shimko or implied tree models, and has a lower computation time than …

alternative valuation procedures. We demonstrate for several multiple valuation methods (averaging with the arithmetic mean …, harmonic mean, median, geometric mean) that the ranking of valuation methods is largely a function of the error measure chosen …. Percentage errors give a higher weight to relative overestimates than to underestimates, and all established multiple valuation …