变量 | 政府控制 | 非政府控制 | 差异性检验 | |||||
均值 | 中位数 | 均值 | 中位数 | 均值 | t值 | 中位数 | Chi2 | |
TA | 0.0021 | −0.0005 | 0.0169 | 0.0068 | 0.0148*** | 6.49 | 0.0073*** | 33.46 |
Smeeting | 4.8801 | 5 | 5.2436 | 5 | 0.3634*** | 7.24 | 0.0000*** | 40.26 |
Oc10 | 0.5547 | 0.5559 | 0.5742 | 0.5915 | 0.0195*** | 4.21 | 0.0356*** | 36.15 |
Size | 22.2302 | 21.9710 | 21.4513 | 21.3653 | −0.7789*** | −22.96 | −0.6057*** | 287.44 |
LEV | 0.5138 | 0.5274 | 0.4179 | 0.4255 | −0.0959*** | −17.54 | −0.1019*** | 160.78 |
ROA | 0.0491 | 0.0383 | 0.0623 | 0.0545 | 0.0132*** | 10.12 | 0.0162*** | 146.65 |
CAPINT | 0.2678 | 0.2347 | 0.2077 | 0.1810 | −0.0602*** | −12.83 | −0.0537*** | 110.55 |
INVENT | 0.1788 | 0.1453 | 0.1828 | 0.1417 | 0.0041 | 0.93 | −0.0036 | 0.78 |
Growth | 0.1743 | 0.1560 | 0.1809 | 0.1684 | 0.0066 | 0.91 | 0.0124* | 3.65 |