国际铁矿石贸易空间互动过程及中国进口策略分析
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朱永光, 徐德义, 成金华, 朱文琪, 尤喆
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The interactive process of international iron ore trade and analysis of China's importation strategy
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Yongguang ZHU, Deyi XU, Jinhua CHENG, Wenqi ZHU, Zhe YOU
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| 表4 以地理距离为权重矩阵的模型效应分解 |
| Table 4 Effect decomposition based on geographical distance weight matrix |
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| 变量 | 模型二 | 模型三 | 模型四 | | 直接效应 | 间接效应 | 总效应 | 直接效应 | 间接效应 | 总效应 | 直接效应 | 间接效应 | 总效应 | | O_Res | 20.91 | 14.82 | 35.73 | 33.98 | 30.10 | 64.08 | 18.52 | 20.14 | 38.66 | | O_Tec | 0.02 | 0.01 | 0.03 | 0.11 | 0.10 | 0.21 | 0.15 | 0.21 | 0.36 | | O_Tra | -6.63 | -4.75 | -11.38 | -9.80 | -8.67 | -18.47 | -2.19 | -4.86 | -7.05 | | D_Eco | -12.31 | -9.42 | -21.73 | -5.86 | -4.88 | -10.73 | -13.76 | -19.48 | -30.24 | | D_Con | 2.87 | 2.28 | 5.15 | 0.50 | 0.41 | 0.91 | 1.63 | 1.79 | 3.41 | | D_Ind | -57.85 | -44.39 | -102.24 | -25.71 | -21.47 | -47.18 | -21.10 | -29.87 | -50.97 | | D_Urb | 23.24 | 17.59 | 40.83 | 12.25 | 10.17 | 22.42 | 23.44 | 10.66 | 34.10 | | D_Tra | 35.61 | 27.17 | 62.79 | 16.85 | 14.01 | 30.86 | 18.75 | 20.41 | 39.16 | | E_Dis | 1.13 | 0.82 | 1.95 | 1.47 | 1.30 | 2.77 | 1.28 | 0.02 | 1.30 | | E_Dis2 | -0.07 | -0.05 | -0.13 | -0.09 | -0.08 | -0.16 | -0.02 | -0.02 | -0.04 |
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