标题： 知识再分类能否加速技术革新？ 显示英文标题

标题： Can knowledge reclassification accelerate technological innovation?

摘要： 技术知识不仅通过产生新思想得以发展，还通过重新解释现有思想得以进步。 重新解释导致知识分类的变化，即重新分类。 本研究探讨了重新分类的发明如何成为创新的再生资源，从而加速技术进步。 以专利数据作为技术知识的代理，我讨论了两个经验模式：（i）较新的专利更有可能被重新分类；（ii）较大的技术类别获得的重新分类专利比例更大。 利用这些模式，我构建了一个模型来解释重新分类的发明如何促进更快的创新。 该模型的预测在所有主要技术领域均得到了支持，表明重新分类与技术进步速度之间存在密切联系。 更广泛地说，该模型连接了各种看似无关的知识量，为增长模式提供了知识内在的解释基础。 显示英文摘要

摘要： Technological knowledge evolves not only through the generation of new ideas, but also through the reinterpretation of existing ones. Reinterpretations lead to changes in the classification of knowledge, that is, reclassification. This study investigates how reclassified inventions can serve as renewed sources of innovation, thereby accelerating technological progress. Drawing on patent data as a proxy for technological knowledge, I discuss two empirical patterns: (i) more recent patents are more likely to get reclassified and (ii) larger technological classes acquire proportionally more reclassified patents. Using these patterns, I develop a model that explains how reclassified inventions contribute to faster innovation. The predictions of the model are supported across all major technology domains, suggesting a strong link between reclassification and the pace of technological advancement. More generally, the model connects various, seemingly unrelated knowledge quantities, providing a basis for knowledge intrinsic explanations of growth patterns.