Mechanism analysis: energy consumption structure and energy efficiency
| (1) | (2) | (3) | (4) | (5) | (6) | |
|---|---|---|---|---|---|---|
| Variables | Coal | Stan_coal | Gas | EE | Exhaust_EE | Stancoal_EE |
| GPP | −0.0806*** (0.0183) | −0.0986** (0.0412) | 0.3366** (0.1417) | 0.0766*** (0.0197) | 0.0732*** (0.0236) | 0.1329*** (0.0479) |
| Constant | 5.5982*** (0.5519) | 5.2869*** (0.5335) | −5.5821*** (1.4762) | −0.3394 (0.4741) | −0.6792 (0.4705) | −0.0948 (0.4889) |
| Observations | 215,741 | 109,502 | 112,537 | 215,741 | 213,270 | 109,488 |
| Adjusted R2 | 0.9094 | 0.9288 | 0.6237 | 0.8114 | 0.7678 | 0.8300 |
| Controls | Yes | Yes | Yes | Yes | Yes | Yes |
| Year FE | Yes | Yes | Yes | Yes | Yes | Yes |
| Firm FE | Yes | Yes | Yes | Yes | Yes | Yes |
| (1) | (2) | (3) | (4) | (5) | (6) | |
|---|---|---|---|---|---|---|
| Variables | Coal | Stan_coal | Gas | EE | Exhaust_EE | Stancoal_EE |
| GPP | −0.0806 | −0.0986 | 0.3366 | 0.0766 | 0.0732 | 0.1329 |
| Constant | 5.5982 | 5.2869 | −5.5821 | −0.3394 (0.4741) | −0.6792 (0.4705) | −0.0948 (0.4889) |
| Observations | 215,741 | 109,502 | 112,537 | 215,741 | 213,270 | 109,488 |
| Adjusted | 0.9094 | 0.9288 | 0.6237 | 0.8114 | 0.7678 | 0.8300 |
| Controls | Yes | Yes | Yes | Yes | Yes | Yes |
| Year FE | Yes | Yes | Yes | Yes | Yes | Yes |
| Firm FE | Yes | Yes | Yes | Yes | Yes | Yes |
*, **and ***, respectively, indicate that the significance is 10, 5 and 1%; the values in brackets are robust standard errors for clustering to industry-year
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