When looking at the refining skill I was surprised that its secondary attribute was Economics. I can not see how that fits in to refining.

Balance?

I guess if I look at the players who have their major attributes in Economics and Politics can play the market by refining. I just wondering if this is a viable strategy. I mean you still have to train refining which has it main attribute in heavy industry.

Sorry, it just mine boggles me why refining need Economics.