I examine the role of human and physical capital for the creation of scientific knowledge. I address the endogeneity of human and physical capital with two exogenous shocks: the dismissal of scientists in Nazi Germany and World War II bombings. A 10% shock to human capital reduced output by 0.2 SD in the short run, and the reduction persisted in the long run. A 10% shock to physical capital reduced output by 0.05 SD in the short run, and the reduction did not persist. The dismissal of star scientists caused much larger reductions in output because they are key for attracting other successful scientists.

中文翻译：

---

炸弹，大脑和科学：人力资本和物质资本在创造科学知识中的作用

我研究了人力资本和物质资本在创造科学知识中的作用。我通过两个外源性的冲击来论述人力资本和物质资本的内生性：纳粹德国的科学家被解职和第二次世界大战的爆炸。对人力资本的10％冲击在短期内使产出减少了0.2 SD，从长期来看，这种减少持续存在。对实物资本的10％冲击在短期内将产出减少了0.05 SD，并且这种减少并没有持续。解雇明星科学家导致产量大幅下降，因为它们是吸引其他成功科学家的关键。