It's hard to say. Really it depends on one's competitiveness and of course, fortune. Usually they recruit Chinese students to specialize in modelling and empirical study. Relatively fewer domestic students would like to do this so the stake is good, relatively speaking.
Sure, for kinda of weak background like me, it's very tough to get into any of these fields. :-( Maybe I should stick to economics.
Tony, I am really sorry that I misunderstood you. Actually, I should thank you since I read your experience about the GMAT. Let be patient and hope we will get some offer in the next few weeks.