Thanks for your reply.
I just contacted BGSE to ask about MAS. It turns out MAS has been canceled. Instead, there will be a program called MRes as a part of PhD courses in UPF.
Here is the email,
"the MAS will not be offered in 2013-14, and that's why the information in the web page has been deleted. If you are admitted to the PhD, you will be required to take a second year of advanced courses, the so called MRes (Master of Research in Economics, Finance and Management). The MRes in intended to be the coursework, and the PhD, the thesis stageExceptionally, a student can be admitted to the MRes only, and depending on his performance in the MRes get admission to the PhD afterwards In any case, is a very demanding master with few positions available"
A little tricky, since I am not sure if I will pursue my PhD in UPF.