我在做一个随机前沿分析的论文,找来省的年鉴数据,然后用超越对数函数求了无技术效率和7个影响因素的剥离,数据都很好但具体到每个省时,云南和贵州的技术效率比北京都高了,检查了过程和数据都没问题,想问这个怎么办。
这个是其中一年对数后的数据,由于不能太长,我就缺省了几个Z值
| 省份 | 时期 | Y | X1 | X2 | X1^2 | X2^2 | X1X2 | Z1 | Z2 | Z3 | Z4 |
1 | 1 | 7.723562 | 5.546161 | 2.397413 | 30.7599 | 5.747591 | 13.29644 | -3.92714 | -3.75839 | 0.637582 | -0.87635 |
2 | 1 | 5.484797 | 3.699547 | 1.058068 | 13.68665 | 1.119508 | 3.914373 | -3.98998 | -3.46675 | 0.822507 | -0.93675 |
3 | 1 | 5.616771 | 3.63898 | 1.236576 | 13.24217 | 1.529119 | 4.499873 | -4.06285 | -4.38033 | -1.14917 | -0.85261 |
4 | 1 | 5.587249 | 2.761629 | 0.614266 | 7.626594 | 0.377323 | 1.696376 | -3.74651 | -4.50953 | -1.32051 | -0.64264 |
5 | 1 | 4.382027 | 1.854703 | -0.14087 | 3.439923 | 0.019845 | -0.26128 | -3.78099 | -4.56232 | -1.46534 | -1.02248 |
6 | 1 | 6.467699 | 4.418478 | 1.72332 | 19.52295 | 2.969832 | 7.614451 | -4.11047 | -3.6697 | 0.321359 | -1.2201 |
7 | 1 | 5.451038 | 3.32504 | 0.666803 | 11.05589 | 0.444627 | 2.217147 | -3.90207 | -4.38062 | -0.27562 | -1.06973 |
8 | 1 | 5.433722 | 3.486656 | 1.24228 | 12.15677 | 1.543259 | 4.331402 | -3.91202 | -4.10749 | -1.29317 | -0.97233 |
9 | 1 | 6.779922 | 4.859182 | 1.726527 | 23.61165 | 2.980897 | 8.389511 | -3.93223 | -4.43665 | 1.179793 | -0.47401 |
10 | 1 | 6.43935 | 5.013714 | 2.282933 | 25.13733 | 5.211784 | 11.44597 | -4.24053 | -4.00836 | 0.561728 | -1.24792 |
11 | 1 | 6.061457 | 4.320492 | 1.538586 | 18.66665 | 2.367247 | 6.647449 | -4.08044 | -3.51427 | 0.044878 | -1.26869 |
12 | 1 | 4.934474 | 3.478834 | 0.920562 | 12.10229 | 0.847434 | 3.202481 | -3.83506 | -4.71837 | -0.99128 | -1.07999 |
13 | 1 | 4.919981 | 3.624392 | 0.978852 | 13.13621 | 0.958152 | 3.547744 | -3.97923 | -3.80523 | 0.521647 | -0.55182 |
14 | 1 | 4.574711 | 2.831871 | 0.530569 | 8.019495 | 0.281504 | 1.502504 | -3.77226 | -4.67046 | -0.73919 | -0.80475 |
15 | 1 | 6.363028 | 4.642892 | 2.057452 | 21.55644 | 4.233107 | 9.552525 | -4.21313 | -3.92739 | -0.33589 | -1.03676 |
16 | 1 | 5.545177 | 3.531962 | 1.404674 | 12.47476 | 1.97311 | 4.961257 | -3.95807 | -4.40484 | -1.56542 | -0.65124 |
17 | 1 | 6.040255 | 4.004006 | 1.646753 | 16.03206 | 2.711795 | 6.593608 | -3.97923 | -4.16986 | -0.92533 | -1.03592 |
18 | 1 | 5.846439 | 3.404206 | 0.992807 | 11.58862 | 0.985666 | 3.379721 | -3.94765 | -4.38708 | -1.39554 | -0.87084 |
19 | 1 | 6.859615 | 5.192064 | 2.238708 | 26.95753 | 5.011812 | 11.62351 | -4.09235 | -3.49034 | 1.008469 | -1.18189 |
20 | 1 | 4.418841 | 2.419381 | 0.276722 | 5.853404 | 0.076575 | 0.669497 | -3.57555 | -4.24125 | -0.91629 | -0.92508 |
21 | 1 | 3.332205 | 0.192767 | -2.26336 | 0.037159 | 5.122818 | -0.4363 | -3.84436 | -4.68124 | 0.288407 | -0.87635 |
22 | 1 | 4.828314 | 2.858772 | 0.573462 | 8.172578 | 0.328859 | 1.639398 | -3.96859 | -4.53516 | -1.09991 | -0.9128 |
23 | 1 | 5.834811 | 4.374764 | 1.755562 | 19.13856 | 3.081999 | 7.68017 | -3.89222 | -4.29625 | -1.20731 | -0.98752 |
24 | 1 | 4.369448 | 2.065 | -0.14815 | 4.264226 | 0.021949 | -0.30593 | -3.16534 | -4.35354 | -1.72037 | -0.56687 |
25 | 1 | 5.153292 | 2.398568 | 0.25797 | 5.753127 | 0.066549 | 0.618759 | -3.31044 | -4.19762 | -1.12979 | -0.48305 |
26 | 1 | 5.129899 | 4.219381 | 1.690815 | 17.80318 | 2.858856 | 7.134194 | -3.66516 | -4.49536 | -0.77653 | -0.43109 |
27 | 1 | 4.418841 | 2.547114 | 0.524018 | 6.487791 | 0.274595 | 1.334734 | -3.38139 | -4.62208 | -1.57794 | -0.89502 |
28 | 1 | 2.833213 | 0.878381 | -1.48501 | 0.771553 | 2.205256 | -1.30441 | -3.4296 | -4.68692 | -1.43297 | -0.86988 |
29 | 1 | 4.317488 | 1.333869 | -0.6283 | 1.779206 | 0.394756 | -0.83806 | -3.57199 | -4.4883 | -1.33105 | -0.83656 |