上市公司500强企业网络嵌入对中国城市经济增长的影响
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盛科荣, 张杰, 张红霞
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Network embedding and urban economic growth in China: A study based on the corporate networks of top 500 public companies
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SHENG Kerong, ZHANG Jie, ZHANG Hongxia
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表3 基准模型回归结果
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Tab. 3 Regression results from benchmark models
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| 变量 | 模型(1) | 模型(2) | 模型(3) | 模型(4) | 模型(5) | 模型(6) | 模型(7) | 模型(8) | | 全体 | 全体 | 东部 | 中西部 | 核心 | 外围 | 较大 | 较小 | | ln(k) | 0.726***
(26.65) | 0.727***
(26.68) | 0.603***
(10.57) | 0.774***
(24.15) | 0.541***
(11.37) | 0.754***
(23.45) | 0.550***
(9.55) | 0.771***
(26.37) | | ln(degree) | 0.056***
(4.09) | 0.058***
(4.10) | 0.068***
(3.39) | 0.048***
(2.91) | 0.122***
(4.68) | 0.067**
(2.59) | 0.118***
(4.58) | 0.031
(1.44) | | ln(NlagGDP) | | -0.005
(-0.69) | 0.168*
(1.87) | -0.007
(-0.99) | 0.629***
(4.05) | -0.008
(-1.09) | 0.042**
(2.26) | -0.007
(-1.25) | | ln(density) | 0.062**
(2.06) | 0.061**
(2.03) | 0.096**
(2.21) | 0.033
(0.80) | 0.045
(0.81) | 0.062*
(1.76) | 0.021
(0.39) | 0.050
(1.47) | | ln(SlagGDP) | 0.011**
(2.33) | 0.011**
(2.31) | 0.026**
(2.41) | 0.004
(0.84) | 0.026***
(3.18) | 0.009
(1.61) | 0.015
(1.58) | 0.010**
(2.20) | | manufact | 0.332***
(4.27) | 0.334***
(4.29) | 0.292*
(1.98) | 0.093
(0.88) | -0.076
(-0.43) | 0.240***
(2.66) | 0.558**
(2.50) | 0.322***
(3.86) | | reseacher | 0.144
(1.50) | 0.142**
(1.48) | -0.169
(-0.99) | 0.134
(1.52) | 0.224
(1.33) | 0.065
(0.74) | 0.029
(0.14) | 0.172
(1.60) | | time | -0.121***
(-5.58) | -0.120***
(-5.48) | -0.116**
(-2.49) | -0.164***
(-5.87) | -0.271***
(-4.75) | -0.147***
(-5.72) | -0.026
(-0.76) | -0.146***
(-5.85) | | 样本数量 | 513 | 513 | 193 | 314 | 137 | 370 | 115 | 398 | | max vif | 3.28 | 3.29 | 5.71 | 3.60 | 7.46 | 3.07 | 4.04 | 3.24 | | mean vif | 2.06 | 2.00 | 2.94 | 2.07 | 3.75 | 1.94 | 2.64 | 1.94 | | R2 | 0.852 | 0.853 | 0.767 | 0.873 | 0.868 | 0.834 | 0.889 | 0.839 |
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