EN
The article addresses selected issues of inequality that take place in the modern world. The author points out that the widening of inequalities could adversely affect the chances of social development at a global, regional, and national extent. It focuses on inequalities arising from the measurement obtained by using the new indicators such as the Inequality-adjusted Human Development Index (IHDI) and Gender Inequality Index - GII, as well as inequalities in income, derived based on the ratio Gini. Author indicates the various, possible consequences of growing inequalities.