@FStratford - you mean Rosen?
There has always been a strong empirical tradition at Chicago. Didn’t that come from the Milty Man himself? (Friedman, that is).
However, there has also been a strong general equilibrium theoretical bunch too (Lucas, Hansen, Townsend who is now at MIT; more recently Alvarez and Shimer). Lately the methods have been shifting toward experimental and now RCT. Not a bad thing - but not necessarily “Chicago School.” I’m an old fart so I call some of the current methods “cutesy.” Others call it Twitter Economics. The winds of change and the groans of the old guys.
Heckman has an article about RCT: https://www.nber.org/papers/t0107.pdf
And then there is this: https://www.cgdev.org/blog/rapid-rise-randomistas-and-trouble-rcts
Is some of this simply a movement against higher math?