Hey guys, I'm currently considering a PhD in Economics/econometrics. Focus of research will be an attempt to model or map out the psychology of the equity markets, specifically with respect to certain conditions (haven't decided which of several) to try an establish a correlating relationship.

The problem is I have never done economics before, or am I involved in my day-to-day job (I'm an Engineer). However, I am involved very closely in the stock market from a personal standpoint (investing) and am very interested in it, especially on a macro level.

Do you think this is feasible? I do have a decent mathemathics background (Masters in Engineering) although God only knows if I still remember most of it now that it was more than 7 years ago I last left academia.

Anyone have a PhD in econs that can provide some advice?

PS: I'm probably going to do it in Aus (if I decide to do it after all).