He meant Agri  Econ, I guess.

Yes University of Chicago would be my no 1 Priority (After all they publish the journal of political Economy and Thorsten Veblen was the first editor En Chief.)  More modern theories also have been published out of there. I personally adore is " A Theory of Fads, Fashion, Custom, and Cultural Change as Informational Cascades" by  Sushil Bikhchandani,  Ivo Welch,  and David A Hirshleifer; if you are interested on the financial  /psychological aspect. Go for a double docrate Econ and Psychology--- the new trend.  (I did not had the base to go for it, – I wish, baccha ma dharai chorara pass nabhayako bhaya, I would have made it)

Second choice would be Washington University. - Do some research and you would find out, why?

Third (Doesn’t matters) - Harvard, Minnesota, Princeton, UNL, Stanford, Boulder aadi -ittadi.