人口规模与废污水排放量关系的动态稳定性研究
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李崇梅, 傅崇辉
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The dynamic stability of relationships between population size and waste water emissions
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LI Chongmei,FU Chonghui
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表2 固定效应模型的估计结果 |
Table 2 Results of fixed-effect models |
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| 模型一 | 模型二 | 模型三 | 模型五 | 模型四 | a(常数项) | -3.050 6*** | -0.806 6* | 0.001 0 | -0.863 1* | -1.023 6* | ln(pop) | 1.830 0*** | 0.834 9** | 0.967 3** | 0.983 7*** | 0.892 5** | ln(GDP) | | 0.208 1** | 0.160 2* | 0.218 3** | 0.187 9** | ln(urb) | | 1.080 1*** | 1.188 4*** | 1.071 7*** | 1.077 1*** | ln(con) | | 0.400 0* | 0.180 8* | 0.409 1* | 0.418 3* | ln(pro) | | -0.366 0*** | -0.254 8** | -0.368 4*** | -0.357 8*** | ln(dis) | | -0.007 1* | -0.007 8* | -0.056 0* | -0.007 6* | Year | | -0.022 0* | | | | ln(pop)year | | | | | -0.031 7* | D(2004)ln(pop) | | | | -0.086 0** | | D(2005)ln(pop) | | | | -0.071 1*** | | D(2006)ln(pop) | | | | -0.043 1** | | D(2007)ln(pop) | | | | -0.031 5** | | D(2008)ln(pop) | | | | -0.031 2*** | | D(2009)ln(pop) | | | | -0.027 3** | | D(2010)ln(pop) | | | | -0.022 6*** | | D(2011)ln(pop) | | | | -0.017 0** | | D(2012)ln(pop) | | | | -0.014 9** | | R2 | 0.879 0 | 0.923 0 | 0.887 0 | 0.941 0 | 0.939 0 | Log likelihood | -201.888 0*** | -23.102 0*** | 201.198 0*** | -49.652 0*** | -33.098 0*** | Cross-section F | 126.024 5*** | 52.289 0*** | N/A | 62.198 0*** | 67.092 0*** | Cross-section Chi-square | 311.190 0*** | 543.708 0*** | N/A | 493.082 0*** | 601.532 0*** |
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