| Variable grouping | Variable name | Variable to explain |
| Dependent variable | Occupy | Funds of the controlling shareholder of listed companies, occupy = (other receivables-other payables)/total assets |
| Independent variable | Share | The first big shareholder’s stake |
| Control variable | lev | The asset-liability ratio |
| Size | Company scale, ln (asset) | |
| jsize | The size of the board of supervisors | |
| inde | Ratio of independent directors | |
| bm | The number of board meeting | |
| roa | Net interest rates |