The Pre‐programme Earnings Dip and the Determinants of Participation in a Social Programme. Implications for Simple Programme Evaluation Strategies
The Pre‐programme Earnings Dip and the Determinants of Participation in a Social Programme. Implications for Simple Programme Evaluation Strategies
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计划前收入下降和参与社会计划的决定因素对简单计划评估策略的影响。
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
Jeffrey A. Smith
中科院分区：
文献类型：
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作者：
J. Heckman;Jeffrey A. Smith
评估计划影响的关键是构建反事实的结果，代表在没有计划的情况下会发生什么。当个人、公司或地方政府等代理人自我选择加入该项目而不是被外部分配到该项目时，这个问题变得更加复杂。这篇论文使用一项重大社会实验的数据来确定，如果没有参加就业培训计划，自选参与者的收入会发生什么变化。作者调查了这些收入模式对广泛使用的事前-事后和差额差额估计器的有效性的影响。
The key to estimating the impact of a program is constructing the counterfactual outcome representing what would have happened in its absence. This problem becomes more complicated when agents, such as individuals, firms, or local governments, self-select into the program rather than being exogenously assigned to it. This paper uses data from a major social experiment to identify what would have happened to the earnings of self-selected participants in a job training program had they not participated in it. The authors investigate the implications of these earnings patterns for the validity of widely used before-after and difference-in-differences estimators.