根据亚马逊提供的信息“A data envelopment analysis approach to evaluation of the program follow through experiment in U.S. public school education (Working paper - Division ... Harvard University ; HBS 79-23) [Unknown Binding]”,lz所提供的题目可能是最原始的题目,在发表时已经发生了变化;
附件里上传的文章可能就是lz所需要的内容,至少从作者和分析方法上看是一致,先看看吧,希望对你有帮助