| Variable | Name | Description |
| Zscore | Z index | (ROA + CAR)/σ(ROA), Among them, CAR is capital adequacy ratio and ROA is assets return rate. |
| RWAR | Risk weighted asset ratio | Risk weighted assets/total assets |
| LRMES | Long-term marginal expected loss | Expected loss of equity value of commercial banks during a period of 40% decline in market returns |
| COC | Level of corruption control | The government’s ability to prevent and crack down on personal abuse of power |
| GE | Government efficiency level | Government public service, policy making and implementation level |
| RQ | Regulation quality | The government’s effect on the supervision of enterprises and society |
| ROL | The level of the rule of law | The degree of development of a country’s legal system |
| POL | Political stability index | Measure the stability of a country’s political situation |
| lnAsset | Bank scale | The value of the bank assets |
| ROA | Profitability | Bank’s rate of return on assets |
| NIIr | Non interest income ratio | (total income - interest income)/total income |