Focusing on a sample of 22 industries and 22 OECD countries and controlling for a full set of year-, industry-, and country fixed effects (and their interactions), we first show that intellectual property rights (IPRs) protection, by means of both constitutional provisions and ordinary laws, is positively associated with the dynamics industry-level labor productivity. Disentangling the impact of constitutional provisions from that of ordinary laws, we then show that constitutional provisions protecting IPRs positively affect the differential in labor productivity between high and low R&D intensive industries. This effect is driven by the mutually reinforcing impact of constitutional IPRs protection and R&D investment in the high R&D intensive industries. Furthermore, the impact of constitutions appears to be stronger in those countries where IPRs protection by ordinary laws is weaker.

中文翻译：

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知识产权对劳动生产率的影响：宪法重要吗？

以 22 个行业和 22 个 OECD 国家为样本，并控制一整套年份、行业和国家固定效应（及其相互作用），我们首先表明，知识产权 (IPR) 保护，通过宪法规定和普通法律，动态正相关于产业层面的劳动生产率。将宪法条款的影响与普通法律的影响区分开来，我们接着表明，保护知识产权的宪法条款对高研发密集型产业和低研发密集型产业之间的劳动生产率差异产生了积极影响。这种影响是由宪法知识产权保护和研发投资对高研发密集型产业的相辅相成的影响所驱动的。此外，