| 
 | Innovation | Innovation | Innovation | Innovation | 
| L.DIF | 0.011*** | 
 | 
 | 
 | 
| 
 | (3.66) | 
 | 
 | 
 | 
| L.DIF_B | 
 | 0.010*** | 
 | 
 | 
| 
 | 
 | (3.93) | 
 | 
 | 
| L.DIF_C | 
 | 
 | 0.007*** | 
 | 
| 
 | 
 | 
 | (2.97) | 
 | 
| L.DIF_D | 
 | 
 | 
 | 0.005 | 
| 
 | 
 | 
 | 
 | (0.98) | 
| SIZE | 1.440*** | 1.448*** | 1.439*** | 1.431*** | 
| 
 | (3.13) | (3.15) | (3.13) | (3.11) | 
| PPE | 17.079*** | 17.068*** | 17.157*** | 16.982*** | 
| 
 | (7.51) | (7.51) | (7.54) | (7.45) | 
| LEV | −5.821*** | −5.796*** | −5.867*** | −5.919*** | 
| 
 | (−10.92) | (−10.87) | (−11.01) | (−11.10) | 
| Capital | 1.007*** | 1.000*** | 1.012*** | 1.008*** | 
| 
 | (6.23) | (6.19) | (6.26) | (6.23) | 
| Mbr | −7.819*** | −7.798*** | −7.845*** | −7.928*** | 
| 
 | (−16.35) | (−16.31) | (−16.40) | (−16.58) | 
| Growth | 0.423*** | 0.418*** | 0.425*** | 0.411*** | 
| 
 | (3.49) | (3.45) | (3.50) | (3.39) | 
| Equity | −3.118*** | −3.092*** | −3.168*** | −3.186*** | 
| 
 | (−4.87) | (−4.83) | (−4.95) | (−4.97) | 
| ROA | −7.941*** | −7.918*** | −7.996*** | −8.083*** | 
| 
 | (−6.98) | (−6.96) | (−7.02) | (−7.09) | 
| AGE | −0.046*** | −0.046*** | −0.045*** | −0.043** | 
| 
 | (−2.68) | (−2.72) | (−2.64) | (−2.54) | 
| LnTI | −1.188*** | −1.208*** | −1.172*** | −1.143** | 
| 
 | (−2.65) | (−2.70) | (−2.61) | (−2.55) | 
| Merge | 0.937*** | 0.939*** | 0.945*** | 0.990*** | 
| 
 | (6.22) | (6.24) | (6.27) | (6.59) | 
| Ind | 0.043*** | 0.043*** | 0.044*** | 0.046*** | 
| 
 | (2.97) | (2.96) | (3.03) | (3.16) | 
| FB | 0.066 | 0.062 | 0.068 | 0.052 | 
| 
 | (0.42) | (0.40) | (0.44) | (0.33) | 
| Constant | 1.234 | 1.570 | 1.183 | 0.913 | 
| 
 | (0.48) | (0.61) | (0.46) | (0.35) | 
| Observations | 3,537 | 3,537 | 3,537 | 3,537 | 
| R-squared | 0.419 | 0.419 | 0.418 | 0.417 | 
| F test | 0 | 0 | 0 | 0 | 
| r2_a | 0.413 | 0.413 | 0.412 | 0.411 | 
| F | 70.13 | 70.22 | 69.91 | 69.53 |