
创新价值链视角下环境规制对技术创新效率的影响——以黄河流域为例
The Impact of Environmental Regulation on Technological Innovation Efficiency from the Perspective of Innovation Value Chain:a Case Study of the Yellow River Basin
环境规制, 技术创新效率, 创新价值链, 技术密度
Environmental Regulation, Technological Innovation Efficiency, Innovation Value Chain, Technological Density
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