Income tax

If we can equate income, the Gini coefficient will be smaller.

The relevant organizations of the United Nations stipulate that if the average income is below 0.2, the average income is highly averaging; 0.2 to 0.3 means a relatively average; 0.3 to 0.4 is relatively reasonable; 0.4 to 0.5 indicates a large income gap; 0.6 above indicates a great disparity in income.