技术关联性、复杂性与区域多样化——来自中国地级市的证据
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马双, 曾刚, 张翼鸥
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Technological relatedness, complexity and regional diversity: Evidence from Chinese cities
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MA Shuang, ZENG Gang, ZHANG Yiou
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表5 1997—2016年全样本的技术增长模型
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Tab. 5 Growth models of full sample during 1997-2016
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| 模型I | 模型II | 模型III | 模型IV | 模型V | Constant | 14.023 762 2*** | 13.698 542 2*** | 13.338 297 3*** | 13.610 300*** | 73.798 271 8*** | | (0.169 873 6) | (0.163 629 0) | (0.169 764 3) | (0.175 274 93) | (7.422 473 6) | Relatedness Density | 0.473 682 9*** | 0.457 389 28*** | | 0.349 039 2*** | 0.198 273 6*** | | (0.010 019 2) | (0.010 087 4) | | (0.008 252 1) | (0.012 093 0) | Technology Complexity | | 0.207 529 3*** | | 0.180 982 3*** | 0.125 472 63*** | | | (0.007 765 3) | | (0.008 192 8) | (0.008 023 1) | Population | | | 15.709 382*** | 13.789 283 7*** | 56.982 910 2*** | | | | (0.301 938 2) | (0.308 124 2) | (4.512 839 2) | GDP per cap. | | | 0.000 452 8*** | 0.000 342 7*** | 0.000 006 0 | | | | (0.000 020 9) | (0.000 019 8) | (0.000 090 2) | Population Density | | | -0.003 873 6*** | -0.003 401 8*** | -0.003 372 9 | | | | (0.000 213 2) | (0.000 231 5) | (0.003 300 1) | Tech. stock | | | -0.000 502 93*** | -0.000 558*** | -0.005 098 2*** | | | | (0.000 033 0) | (0.000 031 9) | (0.000 098 3) | Tech. size | | | 0.001 076 0*** | 0.000 714 2*** | 0.001 726 32*** | | | | (0.000 056 0) | (0.000 054 82) | (0.000 060 3) | 区域固定效应 | 否 | 否 | 否 | 否 | 是 | 时间固定效应 | 否 | 否 | 否 | 否 | 是 | 调整R2 | 0.003 969 0 | 0.00560981 | 0.00702039 | 0.0102983 | 0.0672812 |
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