Ruchliwość społeczna jako przedmiot badań socjologicznych - podstawowe pojęcia i koncepcje, cele i znaczenie badań.

The article discusses the key theories, concepts, and notions used in comparative research into intergenerational social class mobility. More specifically, it discusses the Featherman, Jones, and Hauser hypothesis about cross-national similarity in social class mobility, describes a distinction between absolute and relative social mobility, and presents the Erikson-Goldthorpe-Portocarero class scheme. After discussing the results of both classical and recent studies on intergenerational social class mobility, this paper deals with the evidence-based policy recommendations relevant for decision-makers who can influence within certain limits the extent to which the rate of intergenerational social mobility can be equalised. [ABSTRACT FROM AUTHOR]