| 高管有学术经历组 | 高管无学术经历组 | 差异检验 | |||||
| 样本量 | 均值 | 中位数 | 样本 | 均值 | 中位数 | Meandiff | Diff |
RD1 | 2780 | 17.967 | 17.910 | 13,368 | 17.126 | 17.326 | −0.840*** | 503.074*** |
RD2 | 2780 | 0.050 | 0.043 | 13,368 | 0.031 | 0.030 | −0.019*** | 694.227*** |
RD3 | 2780 | 0.025 | 0.023 | 13,368 | 0.016 | 0.014 | −0.009*** | 674.596*** |