| 模型 | 模型(8) | 模型(9) | 模型(10) | 模型(11) | 模型(12) | 模型(13) | 模型(14) (不加D1) |
| 被解释变量 | Y2 | Y2 | Y2 | Y2 | Y2 | Y2 | Y2 |
| C | −4.367** | −4.795** | −5.022** | −3.156** | −6.122** | −4.367** | −2.513** |
| (11.997) | (−7.960) | (−7.411) | (−5.349) | (−4.219) | (11.997) | (−2.700) | |
| X1 | 2.321** | −3.178** | 2.929** | 2.330** | 2.665** | 2.321** | 1.990** |
| (37.727) | (3.997) | (6.277) | (51.300) | (9.538) | (37.727) | (11.980) | |
| X2 |
| −0.455 |
|
|
|
|
|
|
| (−1.093) |
|
|
|
|
| |
| X3 |
|
| −0.311 |
|
|
|
|
|
|
| (−1.340) |
|
|
|
| |
| X4 |
|
|
| −0.276 |
|
|
|
|
|
|
| (−2.022) |
|
|
| |
| X5 |
|
|
|
| −0.075 |
|
|
|
|
|
|
| (−1.243) |
|
| |
| D1 | −0.605** | −0.613** | −0.629** | −0.720** | −0.658** | −0.605** |
|
| (−4.729) | (−4.753) | (−4.835) | (−5.424) | (−4.969) | (−4.729) |
| |
| F-statistic | 276.591 | 193.334 | 198.217 | 198.251 | 189.175 | 276.591 | 182.789 |
| 总体R2 | 0.965 | 0.968 | 0.969 | 0.969 | 0.968 | 0.965 | 0.897 |