| 
 | (1) | (2) | 
| VARIABLES | ABSDA | ABSDA | 
| MAIN | 0.003*** | 0.003*** | 
| (3.046) | (2.857) | |
| lnTotalrev | −0.070** | 
 | 
| (−2.516) | 
 | |
| MAIN_lnTotalrev | −0.008*** | 
 | 
| (−2.807) | 
 | |
| lnCPAnum | 
 | −0.073** | 
| 
 | (−2.254) | |
| MAIN_lnCPAnum | 
 | −0.008** | 
| 
 | (−2.292) | |
| lnSIZE | 0.125*** | 0.117*** | 
| (3.559) | (3.342) | |
| LY | −0.004 | −0.003 | 
| (−0.230) | (−0.183) | |
| IR | −0.401*** | −0.402*** | 
| (−7.141) | (−7.148) | |
| CR | −0.059*** | −0.059*** | 
| (−8.907) | (−8.899) | |
| ROE | 0.851*** | 0.851*** | 
| (10.798) | (10.774) | |
| AD | −0.575*** | −0.565*** | 
| (−6.020) | (−5.909) | |
| UW | −0.044** | −0.045** | 
| (−2.428) | (−2.517) | |
| Constant | −0.066 | −0.144 | 
| (−0.191) | (−0.427) | |
| Observations | 649 | 649 | 
| R-squared | 0.304 | 0.300 |