Robert J. Shiller — American Economist born on March 29, 1946,

Robert James "Bob" Shiller is an American Nobel Laureate, economist, academic, and best-selling author. He currently serves as a Sterling Professor of Economics at Yale University and is a fellow at the Yale School of Management's International Center for Finance. Shiller has been a research associate of the National Bureau of Economic Research since 1980, was vice president of the American Economic Association in 2005, and president of the Eastern Economic Association for 2006–2007. He is also the co‑founder and chief economist of the investment management firm MacroMarkets LLC... (wikipedia)

Some of the best theorizing comes after collecting data because then you become aware of another reality.
Money management has been a profession involving a lot of fakery - people saying they can beat the market, and they really can't.
Somehow, talking to young students brings you back to reality - it should, anyway.
My very first publication was an estimator - this was a statistical procedure - a kind of invention. My father got a patent and started a business; it wasn't successful, but maybe I have some of him in me.