| ADH | Dataset from Autor, Dorn and Hanson (2013) |
| ivreg_ss | Inference in an IV regression with a shift-share instrument |
| ivreg_ss.fit | Inference in an IV regression with a shift-share instrument |
| reg_ss | Inference in linear regression with a shift-share regressor |
| reg_ss.fit | Inference in a shift-share regression |