I don't know that using an Asian bank for the study is going to give you results that translate at all to the western world. Very different business and interpersonal cultures.
The study seems pretty biased from the get go. They claim that lack of female participation at the higher levels of the corporate food chain is due to discrimination without even talking about women dropping out of the workplace at a higher rate to have children (or any other conflicting points of view). Seems like junk "science".