Thomas J. Sargent — American Economist born on July 19, 1943,

Thomas John "Tom" Sargent is an American economist, specializing in the fields of macroeconomics, monetary economics and time series econometrics. As of 2014, he ranks fourteenth among the most cited economists in the world. He was awarded the Nobel Prize in Economics in 2011 together with Christopher A. Sims "for their empirical research on cause and effect in the macroeconomy"... (wikipedia)

I think you've got to watch out for anybody in high school who says he wants to become an economist.
The first and most optimistic response was complete rational expectations econometrics. A rational expectations equilibrium is a likelihood function. Maximize it.
Keynes was a very good economist. He was brilliant. He had wonderful insights. His work has inspired me many times.
What I really don't like is oversimplification.
Lucas attended a conference on rational expectations at the University of Minnesota in the spring of 1973. The day after the conference, I received a call from Pittsburgh.