Statistical research of inter-regional differentiation of population income

The article presents the results of a study of inter-regional differentiation of monetary incomes of the population of the Central Federal District of Russia. The regions of the district were grouped in accordance with the factors of income differentiation, which indicates a gap in the standard of living of the population of the regions. The results of the cluster analysis confirm the inter-regional differentiation of the incomes of the population of the subjects of the Central Federal District of Russia.