This study replicates and challenges the finding of zero wage returns to compulsory schooling in Germany by Pischke and von Wachter (Review of Economics and Statistics, 90(3), 592–598), which is unusual in the literature yet widely cited and until now uncontradicted. I document that this finding is sensitive to minor changes in sample restrictions and model specification. Further results suggest that their estimates are potentially confounded by previously unconsidered institutional details. These findings render the conclusion that compulsory schooling in Germany yields no wage returns at a minimum controversial.

中文翻译：

---

德国义务教育没有工资回报吗？重新评估

这项研究复制并挑战了 Pischke 和 von Wachter 提出的德国义务教育零工资回报的发现（经济和统计评论，90（3），592-598），这在文献中并不常见，但被广泛引用，直到现在不矛盾。我记录了这一发现对样本限制和模型规范的微小变化很敏感。进一步的结果表明，他们的估计可能会被以前未考虑的机构细节所混淆。这些调查结果表明，德国义务教育至少不会产生工资回报这一结论存在争议。