Variable

OLS

FE

RE

MLE

LnERD

0.312

(0.224)

0.279

(0.251)

0.312

(0.224)

0.314

(0.215)

LnGRD

0.370***

(0.134)

0.416**

(0.180)

0.370***

(0.134)

0.366***

(0.129)

LnL

0.426***

(0.154)

0.381**

(0.177)

0.426***

(0.154)

0.431***

(0.150)

LnFL

−0.102**

(0.0490)

−0.116**

(0.0545)

−0.102**

(0.0490)

−0.100**

(0.0475)

LnOF

−2.09e−05

(0.0366)

0.00641

(0.0389)

−2.09e−05

(0.0366)

−0.000585

(0.0355)

Constant

−2.895**

(1.180)

−2.373

(1.447)

−2.895**

(1.180)

−2.920**

(1.136)

R-squared

-

0.774

-

-

F

-

41.79

-

-

Sum of elastic coefficients

1.0059791

0.96641

1.0059791

1.010415