Let u denote the residuals from regressing experience on education and v denote the residuals from regressing education on experience. Below is the truncated Stata output with corresponding commands. reg wage v reg v u wage | Coef. Std. Err. VI Coef. Std. Err. V . 4309267 049558 u | -. 0187231 . 0102892 cons | 2.374565 1126811 _cons | 6. 46e-09 . 0827871 reg wage u reg u v wage I Coef . Std. Err. u Coef . Std. Err. u 092604 . 0142987 V -. 2344593 . 1288456 _cons | 2.374565 . 1150484 _cons | 3.39e-08 . 2929594 The estimate of the coefficient 32 from wage; = Bo + Biedu; + Baxp; + i where edu; is educational attainment and xp; is work experience is O 0.4309 O 0.0926 O 0.0187 O 0.2345 O -0.0187 O -0.2345 O Impossible to determine given the information above