能否将此步骤如何在spss或stata如何实现详细说明下
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回帖推荐STATA CODE:
heckman F1.totalcsp opportunity threat opporthreat strategic intrinsic straintrin peer urgency coalition sequentialbyissuedummy sspintotal logassets firmleverage roa visibility slackresouce ceoduality paystructure directorindep totalcsp, select(sspdummy = L1.logassets L1.firmleverage L1.roa L1.visibility L1.slackresouce L1.ceoduality L1.paystructure L1.directorindep L1.totalcsp) ...
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