生态创新对长三角地区生态经济的影响
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杜立民, 王如琦, 肖赵华
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The impact of ecological innovation on ecological economy of the Yangtze River Delta in China
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DU Limin, WANG Ruqi, XIAO Zhaohua
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表4 异质性收入下的回归结果
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Table 4 Regression results under heterogeneous incomes
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| （1）FE | （2）FE | （3）SYS-GMM | | lnETIK | 0.08*** | | 0.10* | | (6.86) | | (1.86) | | lnETIK×Income | 0.06* | | 0.00 | | (2.12) | | (0.15) | | lnETIK(-1) | | 0.07*** | | | | (4.17) | | | lnETIK(-1)×Income | | 0.07* | | | (2.17) | | | EE(-1) | | | 0.71** | | | | (2.14) | | 常数项 | 2.87*** | 2.78** | 3.03* | | (3.47) | (3.00) | (1.80) | | Control | YES | YES | YES | | Year | YES | YES | YES | | City | YES | YES | YES | | AR（1） | | | 0.05 | | AR（2） | | | 0.07 | | Hansen Test | | | 0.17 | | 工具变量数 | | | 36 | | 截面数 | | | 41 | | 样本数 | 369 | 328 | 328 |
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