“…To solve these issues we follow the previous studies (e.g. Faccio et al , 2016; Withisuphakorn and Jiraporn, 2017; Usman, Farooq, Zhang, Makki and Khan, 2019; Usman, Farooq, Zhang, Makki and Sun, 2019; Usman, Zhang, Farooq, Makki, and Dong, 2018; Usman, Zhang, Wang, Sun and Makki, 2018) and use PSM method. Through this method we can identify control group for each firm with gender-diverse board and that control group probably have no observable differences in characteristics except for one variable (i.e.…”