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笔者采用2003年~2011年中国28个地区21个二位数工业行业的面板数据,实证检验了三种动态外部性对地区产业增长的影响作用。研究结果表明,在全国范围内,产业专业化(MAR外部性)和地区企业竞争程度(Porter外部性)与地区产业增长之间存在非线性关系,而产业多样化(Jacobs外部性)对产业增长的影响作用并不明显。在分地区和分产业的回归分析中,产业专业化和产业多样化对产业增长的影响作用存在显著差异,但企业竞争程度的影响效应基本不变。
The author uses panel data of 21 two-digit industrial industries from 28 regions in China from 2003 to 2011, and empirically tests the effect of three kinds of dynamic externalities on regional industrial growth. The results show that there is a non-linear relationship between industrial specialization (MAR externality) and regional firm competition (Porter externality) and regional industrial growth across the country, while industrial diversification (Jacobs externality) has an effect on industrial growth The impact of the effect is not obvious. In the regression analysis of sub-regions and sub-industries, the effects of industrial specialization and industrial diversification on industrial growth are significantly different, but the effect of enterprise competition is basically the same.