Coefficients

(b)

(B)

(b-B)

Sqrt (Diag(V_b-V_B))

FE

RE

Difference

S.E.

Lnsfdi

0.0795094

0.1314138

−0.0519043

0.0192891

Lnsemp

−0.497874

−0.7204522

0.2225782

0.1443551

Lnfix

0.1812361

0.5177384

−0.3365023

0.0821646

Lnrd

0.1047716

0.3767584

−0.2719867

0.0817602

Open

0.2807603

−0.3353916

0.616152

0.1338764

Gov

−1.18655

0.3322742

−1.518824

0.5331543

_Cons

10.16676

7.115233

3.051524

0.770265

b = consistent under Ho and Ha; obtained from xtreg

B = inconsistent under Ha, efficient under Ho; obtained from xtreg

Test: Ho: difference in coefficients not systematic

chi2(6) = (b-B)’[(V_b-V_B)^(−1)](b-B) = 33.12

Prob > chi2 = 0.0000