%0 Journal Article %A Khayampour, Akbar, Kheradyar, Sina, Rezaei, Farzin, Vatanparast, Mohammadreza %T Decision Usefulness evaluation of risk factor disclouser %J Financial Engineering and Portfolio Management %V 11 %N 42 %P 419-445 %D 2020 %R %U https://sanad.iau.ir/fa/Article/1077804