variables

Model 1

Model 2

Model 3

$\ln K_{it}$

0.6660543*** (22.16)

0.6256402*** (21.13)

0.626234*** (20.96)

$\ln L_{it}$

0.4995389*** (7.81)

0.4841839*** (7.94)

0.4257775*** (6.18)

$\ln {\text{RD}}_{it}$

0.0351481*** (2.62)

0.0408793*** (3.2)

0.0470211*** (3.56)

${\text{market}}_{it}$

0.5169104*** (4.22)

0.5772896*** (4.65)

${\text{Urb}}_{it}$

0.004162*** (2.74)

0.0033325** (1.96)

pearl

0.0342138 (0.4)

RP

0.0306848** (2.11)