Ordinary OLS

Space-fixed OLS

Time-fixed OLS

Space and time-fixed OLS

intercept

1.1088***

(4.5219)

LQ

0.0178***

(8.1598)

0.0192***

(8.3958)

0.0187***

(8.1253)

0.0175***

(7.8250)

LnER

−0.1941***

(−4.7339)

−0.2114***

(−4.9967)

−0.2218***

(−5.1729)

−0.2064***

(−4.9039)

(LnER)²

0.0111***

(4.9150)

0.0120***

(5,1709)

0.1265***

(5.3682)

0.0118***

(5.1054)

Trans

0.0016

(0.5388)

0.0022

(0.7062)

0.0024

(0.7883)

0.0014

(0.4601)

LnK

0.0303***

(5.7121)

0.0273***

(5.0581)

0.0267***

(4.8780)

0.0293***

(5.3361)

LnTech

0.0141***

(4.4358)

0.0165***

(4.9818)

0.0162***

(4.8192)

0.0138***

(4.2360)

LnAwage

−0.0826***

(−8.7605)

−0.0825***

(−8.5317)

−0.0840***

(−8.6443)

−0.0830***

(−8.5570)

W * LQ

−0.0136***

(−5.3467)

−0.0149***

(−5.6606)

−0.0142***

(−4.1115)

−0.0121***

(−3.5577)

W * LnER

−0.0393

(−5.3467)

−0.0341

(−0.5284)

−0.0493

(−6.6751)

−0.0828

(−1.1663)

W * (LnER)²

0.0020

(0.5963)

0.0018

(0.5071)

0.0031

(0.7625)

0.0049

(1.2574)

W * Trans

0.0036

(0.9934)

0.0031

(0.8452)

0.0025

(0.6066)

0.0043

(1.0162)

W * LnK

−0.0302***

(−4.5964)

−0.0286***

(−4.3047)

−0.0339***

(−3.9032)

−0.0331***

(−3.7874)

W * LnTech

−0.0107***

(−2.7176)

−0.0125***

(−3.1022)

−0.0137***

(−2.8166)

−0.0127***

(−2.6579)

W * LnAwage

0.0613***

(5.6135)

0.0606***

(5.4384)

0.0603***

(4.4906)

0.0555***

(4.0919)

W * dep. var

0.7440***

(22.8568)

0.7370***

(22.1022)

0.7108***

(20.3753)

0.6670***

(17.5690)

Corrected R²

0.8911

0.7755

0.6358

0.6274

LogL

1186.6058

1206.5695

1214.1924

1193.6964

σ²

0.0001

0.0001

0.0001

0.0001