Telecommunications vs. Economics

I have BSc in Electrical Engineering (Telecommunication) and I am applying as an international student to do MSc in UK next year.
I was going to continue telecommunication in my MSc but now that i actually want to fill out the application forms I'm beginning to have some doubts. I love my major but I also like subjects like Economics or Business Administration, unfortunately I do not know much about them. I know this is a stupid question but which one do you suggest? What job opportunities each one have? Which one is has better paid? Do I even have a chance of getting an offer coming from an engineering background? :confused: