黄河流域沿线城市绿色发展效率时空演变及其影响因素
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岳立, 薛丹
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Spatiotemporal change of urban green development efficiency in the Yellow River Basin and influencing factors
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YUE Li, XUE Dan
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表3 稳健性检验一
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Table 3 First robustness test
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| 变量名称 | 2005—2011年 | | 2012—2017年 | | 流域整体 | 黄河上游 | 黄河中游 | 黄河下游 | 流域整体 | 黄河上游 | 黄河中游 | 黄河下游 | | lnpgdp | 0.1520*** | 0.0703 | 0.0230 | 0.3690*** | | 0.3060*** | 0.2250*** | 0.3030** | 0.4460*** | | (4.11) | (1.54) | (0.23) | (5.26) | | (7.97) | (3.65) | (3.25) | (4.86) | | urb | -0.0159*** | -0.0301*** | -0.0077 | -0.0159 | | -0.0316*** | -0.0319*** | -0.0311 | -0.0450** | | (-4.03) | (-7.32) | (-0.85) | (-1.39) | | (-5.55) | (-4.11) | (-1.37) | (-2.48) | | urb2 | 0.0001*** | 0.0002*** | 0.0002* | 0.0001 | | 0.0002*** | 0.0002*** | 0.0003* | 0.0003* | | (3.07) | (5.79) | (1.92) | (0.97) | | (4.50) | (3.41) | (1.68) | (1.87) | | is | -0.0036** | -0.0041* | 0.0135*** | -0.0130*** | | -0.0054*** | -0.0066*** | 0.0062** | -0.0137*** | | (-2.39) | (-1.96) | (3.65) | (-3.31) | | (-4.04) | (-3.14) | (2.40) | (-3.80) | | lnfdi | -0.0280*** | 0.0097 | -0.0435*** | -0.0209 | | -0.0199** | -0.0017 | -0.0353*** | -0.0126 | | (-3.30) | (0.93) | (-3.05) | (-0.60) | | (-2.49) | (-0.12) | (-2.93) | (-0.39) | | lntec | -0.0266* | -0.0034 | -0.0663** | -0.0411 | | -0.0117 | -0.0409 | 0.0045 | -0.0985** | | (-1.91) | (-0.18) | (-2.44) | (-1.63) | | (-0.79) | (-1.60) | (0.21) | (-2.18) | | er | 0.00005 | 0.0014* | 0.0005 | -0.0099** | | 0.0008 | -0.00002 | 0.0013 | 0.0040* | | (0.08) | (1.79) | (0.55) | (-2.41) | | (1.34) | (-0.02) | (1.40) | (2.16) | | _cons | 0.0798 | 0.8810* | -0.0044 | -0.750 | | -1.1550*** | -0.3240 | -1.9150** | -2.1680* | | (0.26) | (2.41) | (-0.01) | (-1.05) | | (-3.30) | (-0.62) | (-2.58) | (-1.82) | var
(e.gde) | 0.0767*** | 0.0463*** | 0.0644*** | 0.0514*** | | 0.0601*** | 0.0589*** | 0.0447*** | 0.0484*** | | (14.12) | (8.37) | (8.57) | (7.48) | | (13.08) | (7.75) | (7.94) | (6.93) | | N | 399 | 140 | 147 | 112 | | 342 | 120 | 126 | 96 |
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