García-Machado, Juan J.; Rybczyński, Jarosław - In: Investigaciones europeas de Dirección y Economía de … 21 (2015) 1, pp. 17-25
investigate the volatility smile derived from liquid call and put options on the Polish WIG20 index which option series expired on … volatilities for moneyness points needed were calculated, then we construct 355 smile curves for calls and puts options to study …