| 
 INNOV1 | ||
| 
 | 国有企业 | 非国有企业 | 
| CN | −0.0125 | 0.1164*** | 
| 
 | (0.0366) | (0.0182) | 
| Size | 0.8616*** | 0.7599*** | 
| 
 | (0.0313) | (0.0146) | 
| ROA | 0.8658*** | 0.2735** | 
| 
 | (0.2676) | (0.1071) | 
| LEV | −0.4620*** | −0.0971* | 
| 
 | (0.1295) | (0.0590) | 
| Age | 0.0165 | 0.0545 | 
| 
 | (0.0280) | (0.0341) | 
| Dual | 0.0481 | −0.0050 | 
| 
 | (0.0361) | (0.0162) | 
| 个体效应 | 控制 | 控制 | 
| 时间效应 | 控制 | 控制 | 
| _cons | −1.4574* | 0.3746 | 
| 
 | (0.8230) | (0.5525) | 
| N | 3594 | 7611 | 
| adj.R2 | 0.4240 | 0.5605 |