| (1) | (2) | (3) | (4) |
| ΔEnergy consumption | Scale effect | Composition effect | Technique effect |
Δtrade | 25.5308*** | 30.9491*** | −0.3671 | −5.0513*** |
| (6.3563) | (7.5800) | (0.6590) | (1.6450) |
Δlog GDP | 2.0327 | 4.6672 | 0.7355 | −3.3699** |
| (6.5448) | (7.3666) | (0.6997) | (1.5671) |
Δsecond | −0.1842* | −0.2595** | 0.0412*** | 0.0341 |
| (0.1111) | (0.1232) | (0.0101) | (0.0259) |
Δthird | −0.0405 | −0.1314 | 0.0190* | 0.0720*** |
| (0.1044) | (0.1137) | (0.0098) | (0.0242) |
Δprice | 0.0300** | 0.0419*** | −0.0033** | −0.0087** |
| (0.0134) | (0.0160) | (0.0016) | (0.0036) |
east | −3.6151 | −4.5828* | 0.0129 | 0.9548* |
| (2.5546) | (2.6930) | (0.2894) | (0.5230) |
central | −0.2993 | −0.2879 | 0.1068 | −0.1182 |
| (1.5388) | (1.6610) | (0.1863) | (0.3616) |
west | 3.2046** | 3.4080** | −0.6285*** | 0.4251 |
| (1.4654) | (1.5802) | (0.2259) | (0.3867) |
constant | −3.4619 | −6.1102 | −0.1476 | 2.7959*** |
| (3.3918) | (3.7154) | (0.3720) | (0.8662) |
Observations | 285 | 285 | 285 | 285 |
Score chi2(1) | 1.23384 | 0.66735 | 1.28709 | 1.90293 |
P | 0.2667 | 0.4140 | 0.2566 | 0.1678 |