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Induced innovation in clean energy technologies from foreign environmental policy stringency?

机译：国外环境政策的严格性引发了清洁能源技术的创新？

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摘要

In this paper, we re-conceptualize the meaning of policy-induced innovations in clean technologies by taking a cross-border approach. Previously, empirical research has shown how domestic climate and environmental policies induce firms in the same country to innovate in clean and environmental technologies. This phenomenon has become known as the Porter Hypothesis. However, most research focuses strictly on domestic inducement effects and, if foreign effects are accounted for, they are assumed to be either "knowledge" or "technology" spillovers. We, however, propose that policy spillovers might also induce innovations in other countries. In order to test this hypothesis, we construct a "foreign" environmental policy stringency proxy. This proxy is used as the main explanatory variable, with the outcome variable clean technologies, defined here as all renewable energy technologies as well as electrical energy storage, because these technologies are predominantly defined within the scope of climate and environmental policies as necessary to combat climate change and set forth as paramount to stemming pollutant causing climate change in the United Nations Framework Convention on Climate Change founding documents. Our results show that foreign environmental policy stringency does, indeed, induce clean-technology innovation at home, but this effect varies with different lag structures in our three models.
机译：在本文中，我们采用跨境方法重新概念化了政策引发的清洁技术创新的含义。以前，经验研究表明，国内气候和环境政策是如何促使同一国家的公司在清洁和环境技术方面进行创新的。这种现象已被称为波特假说。但是，大多数研究严格地集中在国内诱因效应上，如果考虑到外国效应，则被认为是“知识”或“技术”溢出。但是，我们建议，政策溢出效应也可能在其他国家引发创新。为了检验该假设，我们构建了一个“外国”环境政策严格性代理。此代理用作主要的解释变量，其结果变量是清洁技术，在此定义为所有可再生能源技术以及电能存储，因为这些技术主要是在应对气候变化所必需的气候和环境政策范围内定义的联合国气候变化框架公约的创始文件中提出了对气候变化的限制，并提出了阻止造成气候变化的污染物的首要措施。我们的结果表明，外国环境政策的严格确实确实在国内引起了清洁技术的创新，但是在我们的三个模型中，这种影响随滞后结构的不同而不同。

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