For admission to the MSc programmes, you are required to have a good Honours first degree (or overseas equivalent) in Economics or a related discipline. You are expected to have received a good training in economics, to at least intermediate level, and to have a basic knowledge of calculus and statistics. The programmes comprise 180 credits in total (credits are given in brackets).

这意思是不是只有是经济系的才能申请。学工商管理的是不是没戏？

if you can prove you have "good training in economics", excellent math score or special training in statistics, it will do I guess. you can contact school directly to ask for more information and your chance to get in. They would be happy to answer your inquiries.