| firm | effch | techch | pech | sech | tfpch |
| 1 | 1.012 | 0.992 | 1.004 | 1.008 | 1.004 |
| 2 | 1.006 | 0.996 | 1.004 | 1.002 | 1.002 |
| 3 | 1.002 | 0.982 | 1.001 | 1.001 | 0.984 |
| 4 | 1.020 | 0.993 | 1.016 | 1.004 | 1.013 |
| 5 | 1.011 | nan | 1.010 | 1.001 | nan |
| 6 | 1.009 | 1.001 | 1.005 | 1.004 | 1.010 |
还有
| firm | effch | techch | pech | sech | tfpch |
| 1 | 1.005 | 1.036 | 0.994 | 1.011 | 1.042 |
| 2 | 0.999 | 1.032 | 1.000 | 0.999 | 1.030 |
| 3 | 1.036 | 1.025 | 1.015 | 1.020 | 1.062 |
| 4 | 1.004 | 1.034 | 0.997 | 1.008 | 1.038 |
| 5 | 1.046 | 1.020 | 1.046 | 1.001 | 1.067 |
| 6 | 1.007 | 1.041 | 1.000 | 1.007 | 1.048 |
| 7 | 1.032 | 1.038 | 1.040 | 0.992 | 1.071 |
| 8 | 1.161 | 6.628 | 1.000 | 1.161 | 7.795 |
这个远远超于1的该怎么解释啊


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