na

Coef.

Std. Err.

z

P > |z|

[95% Conf.

Interval]

gr

17342.6000

1966.8230

8.82

0.000

13487.6900

21197.5000

nb

652.9630

247.3626

2.64

0.008

168.1412

1137.7850

incr

2.8157

0.6524

4.32

0.000

1.5370

4.0944

avc

97.6259

9.5607

10.21

0.000

78.8873

116.3646

yb

−46.4312

9.2736

−5.01

0.000

−64.6072

−28.2553

ef

−0.0061

0.0013

−4.78

0.000

−0.0085

−0.0036

_cons

−154243.1000

30112.5200

−5.12

0.000

−213262.5000

−95223.6300

sigma_u

25711.3890

sigma_e

84607.1930

rho

0.0845

(fraction of variance due to u_i)