Mechanism analysis: technological innovation effect
| Variables | (1) | (2) | (3) |
|---|---|---|---|
| Patent | Invention1 | Invention2 | |
| Gplant | 0.1277*** (0.0428) | 0.1763*** (0.0358) | 0.1362*** (0.0380) |
| Controls | YES | YES | YES |
| Firm FE | YES | YES | YES |
| Year FE | YES | YES | YES |
| Constant | 4.7715*** (0.7329) | 1.1470** (0.5087) | 2.8760*** (0.5847) |
| N | 26630 | 26630 | 26630 |
| R2 | 0.7403 | 0.6912 | 0.7244 |
| Variables | (1) | (2) | (3) |
|---|---|---|---|
| Patent | Invention1 | Invention2 | |
| Gplant | 0.1277 | 0.1763 | 0.1362 |
| Controls | |||
| Firm | |||
| Year | |||
| Constant | 4.7715 | 1.1470 | 2.8760 |
| 26630 | 26630 | 26630 | |
| 0.7403 | 0.6912 | 0.7244 |
Standard errors at the firm-level cluster in parentheses. *p < 0.10, **p < 0.05, ***p < 0.01
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