变量 | 现代服务业 | 非现代服务业 | IT行业 | 非IT行业 | |||||||||
样本数量 | 均值 | 标准差 | 样本数量 | 均值 | 标准差 | 样本数量 | 均值 | 标准差 | 样本数量 | 均值 | 标准差 | ||
PRE | 243 | 2.219105 | 2.184514 | 704 | 1.504154 | 20.11881 | 116 | 3.319738 | 30.78778 | 831 | 1.457513 | 18.62647 | |
OVERCONF | 243 | 0.315508 | 0.465965 | 704 | 0.46 | 0.498897 | 116 | 0.235955 | 0.427 | 831 | 0.448161 | 0.497722 | |
FLOV | 243 | 646.0839 | 144.3144 | 704 | 623.5003 | 155.7918 | 116 | 640.4501 | 134.162 | 831 | 628.0398 | 155.6236 | |
ROA | 243 | 0.04313 | 0.042409 | 704 | 0.033865 | 0.087156 | 116 | 0.0435445 | 0.04151 | 831 | 0.035322 | 0.081648 | |
TOBINQ | 243 | 2.332806 | 1.592463 | 704 | 3.054243 | 3.240472 | 116 | 2.566376 | 1.74111 | 831 | 2.901252 | 3.034333 | |
SIZE | 243 | 22.58049 | 10.18067 | 704 | 22.36983 | 10.0136 | 116 | 22.50571 | 0.888273 | 831 | 22.41549 | 10.26544 | |
LEV | 243 | 0.50187 | 0.19871 | 704 | 0.441342 | 0.220307 | 116 | 0.456899 | 0.189791 | 831 | 0.457954 | 0.21991 | |
SALARY | 243 | 0.419188 | 0.129983 | 704 | 0.421044 | 0.118775 | 116 | 0.397446 | 0.138597 | 831 | 0.423975 | 0.118885 | |
TOP1 | 243 | 34.60299 | 14.3048 | 704 | 31.383 | 13.31752 | 116 | 36.98955 | 13.41637 | 831 | 3.15555 | 1.356448 | |
DISCACC | 243 | 1.51907 | 11.67035 | 704 | 0.419215 | 0.914984 | 116 | 0.383578 | 0.409527 | 831 | 0.7684534 | 6.588198 | |