Table 1: The OLS estimates without (with) considering coskewness and cokurtosis. 
 Variables  Parameters  WOSK  WSK  Coefficients  S.E  tvalue  Coefficients  S.E  tvalue 
 Constant   0.0524^{@}  0.2117  0.24  0.2548^{@}  0.4269  0.59  Market return   0.5244*  0.0385  13.60  0.5251*  0.0389  13.49  Market capitalization   −0.0062^{@}  0.0109  −0.56  −0.0063^{@}  0.0109  −0.57  Book to market ratio   −0.0742*  0.0179  −4.13  −0.0735*  0.0179  −4.08  Market value   0.0085^{@}  0.0076  1.12  0.0081^{@}  0.0076  1.05  Coskewness      −0.05993***  0.0436  −1.72  Cokurtosis      0.0227***  0.0357  1.65  Sigmasquared   0.2083    0.2081   


Significance level at 1%, 5%, and 10% consecutively, ^{@}means insignificant, S.E: standard error.
