In her pervious best seller, a memoir titled Battle Hymn of the Tiger Mother, she argued that strict Chinese parenting was superior and produced very successful children. In the book she explained that she would not accept grades less than an A from her two daughters, allowed no sleepovers or school plays, and made them practice piano for hours with no breaks, among other things.
In her new book she cites the eight groups who are produce more successful people than others: Jews, Indian, Chinese, Iranian, Lebanese-Americans, Nigerians, Cuban exiles and Mormons.
Chua gives three reasons (The Triple Package) why these groups do better: superiority complex, insecurity, and impulse control – which she defines as the ability to resist temptation, especially the temptation to give up in the face of hardship or quit instead of persevering at a difficult task.
Cedar's Take: I'd add a fourth reason, they all live in the United States of America.