Footlocker does have job opportunities; as far as a discount, most stores offer at least a 10% discount for employees. Where are you located? I can try to get a better answer for you if I know a location.
Financial economics is the branch of economics concerned with "the allocation and deployment of economic resources, both spatially and across time, in an uncertain environment". It is additionally characterised by its "concentration on monetary activities", in which "money of one type or another is likely to appear on both sides of a trade". The questions within financial economics are typically framed in terms of "time, uncertainty, options, and information".
A topic of general interest studied in recent years has been financial crises.