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这是用stata做出来的SDM结果：
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y | Coef. Std. Err. z P>|z| [95% Conf. Interval]
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Main |
x1 | .673431 .0203753 33.05 0.000 .6334962 .7133659
x2 | -.0172483 .0404094 -0.43 0.669 -.0964494 .0619527
x3 | .0164063 .0226316 0.72 0.468 -.0279509 .0607635
x4 | .0604564 .0125035 4.84 0.000 .0359499 .0849629
x5 | -.0015771 .0013449 -1.17 0.241 -.004213 .0010587
x6 | .1266263 .0231784 5.46 0.000 .0811974 .1720552
x7 | .1119788 .0200087 5.60 0.000 .0727626 .1511951
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Wx |
x1 | .2373674 .0447708 5.30 0.000 .1496182 .3251165
x2 | -.1518287 .103297 -1.47 0.142 -.354287 .0506297
x3 | .0064587 .0383079 0.17 0.866 -.0686233 .0815407
x4 | .0525916 .0269551 1.95 0.051 -.0002396 .1054227
x5 | -.0006402 .0040225 -0.16 0.874 -.0085241 .0072438
x6 | -.0906599 .042408 -2.14 0.033 -.173778 -.0075417
x7 | .3546885 .0394057 9.00 0.000 .2774547 .4319222
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Spatial |
rho | .1493014 .0188119 7.94 0.000 .1124308 .1861721
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Variance |
sigma2_e | .0014941 .0000295 50.63 0.000 .0014362 .0015519
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Direct |
x1 | .6837594 .0170618 40.08 0.000 .6503189 .7171999
x2 | -.0193688 .0447817 -0.43 0.665 -.1071393 .0684017
x3 | .0178767 .0242101 0.74 0.460 -.0295742 .0653276
x4 | .0624826 .0119843 5.21 0.000 .0389937 .0859715
x5 | -.0013325 .0013086 -1.02 0.309 -.0038973 .0012323
x6 | .1285427 .0228906 5.62 0.000 .0836779 .1734075
x7 | .1225934 .0214598 5.71 0.000 .080533 .1646538
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Indirect |
x1 | .3888848 .0428153 9.08 0.000 .3049683 .4728014
x2 | -.1879072 .1117103 -1.68 0.093 -.4068555 .031041
x3 | .0099286 .0446285 0.22 0.824 -.0775416 .0973987
x4 | .0728809 .0306073 2.38 0.017 .0128918 .1328701
x5 | -.0013112 .0045076 -0.29 0.771 -.010146 .0075236
x6 | -.0845167 .0447078 -1.89 0.059 -.1721424 .0031091
x7 | .4173443 .0457264 9.13 0.000 .3277222 .5069664
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Total |
x1 | 1.072644 .0461071 23.26 0.000 .9822759 1.163013
x2 | -.207276 .1210174 -1.71 0.087 -.4444658 .0299138
x3 | .0278053 .0524828 0.53 0.596 -.0750591 .1306696
x4 | .1353635 .0328266 4.12 0.000 .0710245 .1997025
x5 | -.0026437 .0049173 -0.54 0.591 -.0122815 .0069941
x6 | .044026 .046159 0.95 0.340 -.0464439 .134496
x7 | .5399377 .0506866 10.65 0.000 .4405938 .6392817
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请问用下面这个公式计算溢出效应时，公式中的β和θ分别由上述结果中的哪些结果来表征的
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