

跪求各位大神,下面是什么情况?这表示固定效应模型是合适的吗?
hausman fe
Note: the rank of the differenced variance matrix (13) does not equal the
number of coefficients being tested (14); be sure this is what you
expect, or there may be problems computing the test. Examine the
output of your estimators for anything unexpected and possibly consider
scaling your variables so that the coefficients are on a similar scale.
---- Coefficients ----
| (b) (B) (b-B) sqrt(diag(V_b-V_B))
| fe re Difference S.E.
-------------+----------------------------------------------------------------
education | .0275552 .0144813 .0130739 .0259509
abroad | .00158 -.0317851 .033365 .0384476
tenure | .0081197 -.0011723 .009292 .0056617
sellside | .0502659 .021647 .0286189 .0253902
fortune | .1885897 .0454133 .1431764 .1229956
industry | .0370292 .0038634 .0331658 .0354153
politic | .1356602 -.0126462 .1483064 .085765
crash | .190949 .0511981 .1397509 .0364961
age | -.0197778 -.0037122 -.0160656 .004262
gender | .0845968 .0050837 .0795131 .0445381
balance | -.1008372 -.0661371 -.0347001 .0202599
growth | -.1588681 -.1025591 -.0563089 .0232254
asset | -2.21e-07 -1.19e-07 -1.02e-07 5.83e-08
turnover | -.0129331 -.0112073 -.0017258 .0018426
------------------------------------------------------------------------------
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(13) = (b-B)'[(V_b-V_B)^(-1)](b-B)
= 43.80
Prob>chi2 = 0.0000
.