| Variable | Symbol | Definition |
| Dependent variable | ||
| Enterprise risk | Z | Calculated according to Z-score model: |
| Explanatory variables | ||
| Cost stickiness | Sticky | Calculated according to Weiss model: Stickyi,t = log(ΔCOST/ΔSALEi,a) − log(ΔCOST/ΔSALEi,b) |
| Ownership concentration | CR5 | The sum of top 5 shareholders’ holdings |
| Control variables | ||
| The enterprise scale | Size | The natural logarithm of the total asset |
| Asset-liability ratio | Lev | Total debt/total asset |
| Profitability | Profit | The gross margins |
| Capital intensity | Intensity | Total assets/operating income |