| Variable name | Variable symbol | Variable definitions | |
| Dependent variable | Tax avoidance | ETR | the effective tax rate = (income tax expense − deferred income tax expense)/total profit |
| Independent variable | Executive monetary remuneration | CTR | the natural logarithm of the “total remuneration of the top three executives with the highest compensation” |
| Executive equity incentive | MRS | (number of shares held by management*share price per share*1%)/(sum of the remuneration of the managers whose remuneration ranking top 3 + number of shares held by management*share price per share*1%) | |
| Control variable | Asset-liability ratio | LEV | total liabilities/total assets |
| Enterprise size | SIZE | the natural log of total assets | |
| Return on total assets | ROA | net profit/total assets | |
| Main business income growth rate | GROWTH | (amount of main business income this year − amount of last year)/amount of last year | |
| The shareholding ratio of the largest shareholder | TOP1 | Shareholding ratio of shareholders with the highest number of shares | |