Variable

(1)

lnPGDP

(2)

lnPGDP

(3)

lnPGDP

lnCOV

0.1068***

(14.9666)

lnUSE

0.1327***

(12.8830)

lnDIG

0.0991***

(10.1495)

INS

0.3967***

0.4352***

0.3612***

(4.1347)

(4.2091)

(3.1913)

INL

0.0169***

0.0169***

0.0219***

(7.3352)

(6.7875)

(8.2713)

RDI

0.0372***

0.0368***

0.0472***

(3.2651)

(3.0075)

(3.5037)

DFT

0.4396***

0.3757***

0.2123**

(5.8175)

(4.5768)

(2.2311)

RND

0.7307***

0.8046***

0.8056***

(7.9049)

(8.1687)

(7.2104)

Constant

9.1109***

8.8370***

8.9597***

(72.1857)

(64.6613)

(60.0531)

Observations

300

300

300

R-squared

0.8797

0.8609

0.8323