| 变量 | 高规模组列1 | 低规模组列2 | 高规模组列3 | 低规模组列4 | 
| Lnfee | Op | |||
| Eu | 0.010* | 0.008* | 0.150*** | 0.239*** | 
| 
 | (0.006) | (0.004) | (0.038) | (0.036) | 
| MRatio | −0.007 | −0.019 | 0.921 | −1.904** | 
| 
 | (0.065) | (0.036) | (0.901) | (0.764) | 
| Eu*MRatio | 0.098*** | 0.091*** | −0.187 | −0.610*** | 
| 
 | (0.037) | (0.021) | (0.209) | (0.214) | 
| Lev | 0.967*** | 0.151*** | 3.162*** | 4.797*** | 
| 
 | (0.082) | (0.048) | (0.966) | (0.573) | 
| ROA | 0.396** | −0.273** | −8.767*** | −4.477*** | 
| 
 | (0.195) | (0.106) | (1.713) | (1.000) | 
| CRatio | 0.009 | −0.032*** | 0.101 | 0.156*** | 
| 
 | (0.010) | (0.003) | (0.133) | (0.052) | 
| Loss | −0.076** | −0.007 | 1.390*** | 0.899*** | 
| 
 | (0.037) | (0.022) | (0.321) | (0.244) | 
| Big4 | 1.067*** | 0.385*** | −0.328 | −0.518 | 
| 
 | (0.039) | (0.042) | (0.452) | (1.088) | 
| ArInv | −0.422*** | 0.072 | −2.051** | −1.201** | 
| 
 | (0.065) | (0.045) | (0.827) | (0.576) | 
| State | −0.023 | −0.114*** | −1.785*** | −0.881*** | 
| 
 | (0.019) | (0.016) | (0.284) | (0.209) | 
| Age | 0.007*** | 0.008*** | 0.027 | 0.026 | 
| 
 | (0.002) | (0.001) | (0.019) | (0.016) | 
| _cons | 13.720*** | 13.447*** | −5.588*** | −5.502*** | 
| 
 | (0.088) | (0.043) | (1.124) | (0.665) | 
| year/ind | control | control | control | control | 
| N | 5206 | 5204 | 4736 | 4946 | 
| Pseudo R2 | 0.328 | 0.198 | 0.331 | 0.316 |