No problem with your grades... the only thing is the interview, essay writing... SAT with about 1200 should be enough to get in. However, I think the criteria may be more stringent for the Economics course as the intake is only 50 students. The alternative would be to apply for Economics as the first choice, and Business mgmt as the second choice. When you are accepted into the uni, you can always try to opt for a double degree (this is of course subjected to grades as well, as only a portion of students would be accepted for double degree.
Essay and interview are equally important, cos interpersonal skills are very crucial, and note that participation is an important criteria in our school coursework; thus, it is always preferred that you are one that can speak up in class..otherwise, there may be some difficulties too. Just go ahead and apply... good luck
