Excessive income differentiation of Russians as a limitation of economic growth

The article analyses inconsistent dependence between rates of Russian population wealth division and gross domestic product growth. It proves that at a normal divergence of the richest and poorest Russians income economic growth proceeds successfully. At the same time if the differentiation becomes too high the growth consistently starts fading (up to the crisis of national economy). This is caused by a number of circumstances investigated in this work. This all allows regarding an unjust distribution of the national income as an extremely significant factor which can break the economic growth. Its elimination by means of productive social state policy is an effective way of economic dynamics acceleration.