| 变量 | 估计方法：2SLS | 估计方法：3SLS | |||
|---|---|---|---|---|---|
| 模型1 ln manuf | 模型2 ln ser | 模型3 ln manuf | 模型4 ln ser | ||
| ln manuf | 0.397** | 0.299** | |||
| (2.16) | (1.81) | ||||
| ln ser | 0.345 | 0.327** | |||
| (1.39) | (1.89) | ||||
| ln labm | -0.004 | 0.060 | |||
| (-0.02) | (0.40) | ||||
| ln capm | 0.498** | 0.430*** | |||
| (2.28) | (2.71) | ||||
| ln rdm | 0.01 | 0.064 | |||
| (0.01) | (0.73) | ||||
| ln labs | 0.643*** | 0.338** | |||
| (3.68) | (2.47) | ||||
| open | 0.160 | -0.525*** | 0.153 | -0.576*** | |
| (0.48) | (-2.69) | (0.56) | (-3.27) | ||
| mar | 0.068 | 0.052 | 0.055* | 0.052* | |
| (1.19) | (1.65) | (1.24) | (1.79) | ||
| fd | -0.070 | -0.074 | |||
| (-0.37) | (-0.59) | ||||
| urb | 1.522 | 0.606 | 1.466* | -0.032 | |
| (1.51) | (0.76) | (1.70) | (-0.05) | ||
| ln rgdp | 0.505** | 0.830*** | |||
| (2.01) | (3.95) | ||||
| 常数 | 0.469 | -4.799*** | 0.139 | -5.279*** | |
| (0.46) | (-5.750) | (0.20) | (-7.07) | ||
| R2 | 0.9741 | 0.9888 | 0.9740 | 0.9887 | |
| N | 51 | 51 | 51 | 51 | |
