共 49 条
[41]
2-Z
[42]
Sargan J. D., 1964, Econometric Analysis for National Economic Planning
[46]
Instrumental variables regression with weak instruments
[J].
ECONOMETRICA,
1997, 65 (03)
:557-586
[48]
Veall M.R., 1996, J ECON SURV, V10, P241, DOI DOI 10.1111/J.1467-6419.1996.TB00013.X
[49]
VEALL MR, 1992, J MATH SOCIOL, V16, P332