共 178 条
[3]
Angrist JD, 1996, J AM STAT ASSOC, V91, P444
[4]
[Anonymous], CURRENT ISSUES ENV E
[5]
[Anonymous], 1985, Social experimentation
[6]
[Anonymous], 1985, LONGITUDINAL ANAL LA
[7]
[Anonymous], 2000, MEMORY OBSERVED REME
[8]
[Anonymous], 1992, EVALUATING WELFARE T
[9]
[Anonymous], 1999, Journal of Economic Methodology, DOI DOI 10.1080/13501789900000001