
技术创新外部效应与企业研发投入:理论分析及实证检验
Externalities of Innovation and Corporate R&D Investment:A Theoretical and Empirical Analysis
技术创新, 外部效应, 研发投入, 知识溢出, 市场竞争
Technical Innovation, Externalities of Innovation, R&D Investment, Knowledge Spillovers, Competition
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