When do reforms meet fairness concerns in school admissions?
研究一系列学校招生机制改革，发现部分改革通过减少“被阻塞学生”数量提升了公平性，而另一些则未改善，并识别了公平问题与操纵脆弱性孰轻孰重的不同情形。
Abstract We study a series of reforms of school admissions mechanisms motivated, among other reasons, by fairness concerns and vulnerability to manipulation. Before the reforms and after, the mechanisms were vulnerable to preference manipulation and induced blocking students : students who miss desired schools despite having higher priority or seats left empty. We demonstrate that some of these reforms improved fairness by adopting mechanisms with fewer blocking students compared to the preexisting ones, while several others did not. We identify preexisting mechanisms where fairness consideration was more of an issue than vulnerability to manipulation and those where it is the reverse.