Research on national and provincial income gap from 2015 to 2019 - based on Gini coefficient

At present, China is in a period of rapid development, but there are still problems of unbalanced and insufficient development. How to judge the current income gap in China, so as to promote a reasonable income distribution pattern, is an urgent problem to be solved. Then this paper uses the Gini coefficient to judge the national and provincial income gap from 2015 to 2019. However, at present, China has not officially released the provincial Gini coefficient, so this paper will use the most original calculation method of the Gini coefficient, use the officially released distributable income data divided into five parts of income to calculate the Gini coefficient, and analyze the income gap based on the calculation data, so as to draw conclusions and put forward relevant suggestions.