Competition, patent protection, and innovation with heterogeneous firms in an endogenous market structure
Competition, patent protection, and innovation with heterogeneous firms in an endogenous market structure
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内生市场结构下与异质企业的竞争、专利保护与创新
DOI：
10.1111/jpet.12415
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发表时间：
2020-06
影响因子：
1.1
通讯作者：
Keishun Suzuki
中科院分区：
文献类型：
--
作者：
Keishun Suzuki
本文通过将企业间研发效率的异质性和动态一般均衡模型中的内生市场结构结合起来，重新审视了竞争与创新之间的关系。使用一个易于分析的模型，我们表明，正如几项实证研究所报告的那样，竞争和创新可以具有倒 U 形关系或负关系。此外，我们还表明，加强专利保护对创新的影响取决于竞争水平。特别是，我们发现竞争政策与加强专利保护之间存在互补关系。
This paper revisits the relationship between competition and innovation by incorporating the heterogeneity of R&D efficiency across firms and an endogenous market structure in a dynamic general equilibrium model. Using an analytically tractable model, we show that competition and innovation can have either an inverted‐U or a negative relationship, as reported by several empirical studies. Furthermore, we show that the effect of strengthening patent protection on innovation depends on the competition level. In particular, we find a complementary relationship between competition policy and the strengthening of patent protection.