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
46a1f53512bec3cd5d9c16e8fc9d9da4129c09cc