请高手帮忙看看hausman检验结果?应采用fe还是re模型?判断标准是什么?
. hausman fe
---- Coefficients ----
| (b) (B) (b-B) sqrt(diag(V_b-V_B))
| fe re Difference S.E.
-------------+----------------------------------------------------------------
var4 | .2832305 .345671 -.0624405 .0252408
var5 | .257325 .2548738 .0024512 .0055455
var6 | .0501169 .0341861 .0159308 .0088146
var7 | .4503879 .4085974 .0417906 .0955505
------------------------------------------------------------------------------
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(4) = (b-B)'[(V_b-V_B)^(-1)](b-B)
= 8.69
Prob>chi2 = 0.0693