Not likely. Econ PhDs might land in a quantitative research role at a mid-tier shop on the buyside, but more likely a strategist role. Which isn't a terrible thing. Check out the websites of CMU, UCB, Baruch to get an idea of what topics are covered. "Quant", to Prof Duffy's point, is a fairly broad description of an area with several seemingly non-overlapping skill sets. Though some are converging. . .