1step,rule,n_before,n_after,n_removed,rationale21,drop rows with missing firm_id/x/y,2000,2000,0,OLS needs complete cases32,drop rows with non-finite x/y,2000,2000,0,OLS needs finite values4
76f9a44a3a85fb2bc2b0b370a4ae4eed9b95e579