Comment by viburnum

You can look through any mainstream micro textbook, graduate or undergrad, and in 1,000 pages won’t see a single citation to support any model empirically. Compare that to any decent physics textbook, which will link models to the experiments that back them up. Economics for the real world won’t be simple and pure like physics, it’ll be more like geology or biology, with a lot more facts and a lot fewer theories of everything.