Variable

Coefficient

Std.Error

t-Statistic

Prob.

a

2.411830

0.004305

560.2349

0.0000

$\ln x_1$

−0.043670

0.000466

−93.71747

0.0000

$\ln x_2$

−0.012085

0.000522

−23.15088

0.0000

$\ln x_3$

−0.646838

0.001904

−339.7860

0.0000

$\ln x_4$

−0.110651

0.001251

−88.48138

0.0000

R-squared

0.900371

Mean dependent var

1.369624

Adjusted R-squared

0.905842

S.D.dependent var

0.244203