Table 7 Driscoll–Kraay standard errors test results

Constant

− 20.175***

(1.976)

− 21.133***

(2.133)

− 20.636***

(2.031)

lnP

0.831***

(0.102)

0.856***

(0.093)

0.846***

(0.093)

lnA

0.687***

(0.060)

0.802***

(0.133)

0.814***

(0.148)

lnT

0.085

(0.059)

0.225**

(0.092)

0.083

(0.197)

lnBSD

− 0.223**

(0.088)

− 0.322***

(0.039)

lnBSD \(\times \) lnT

0.770***

(0.109)

F-statistic

109.45***

107.70***

212.12***

within R-squared

0.56

0.56

0.57

Number of observations

330

330

330

Number of Groups

11

11

11