표 3 모형선택 적합성 검정결과
Modified Wald Test for Groupwise Heteroskedasticity
Chi
2
(17)=134.99
Prob>chi
2
=0.000
Wooldridge test
F(1, 16)=243.25
Prob>F=0.000
Hausman test
Chi
2
(7)=16.28
Prob>chi
2
=0.023