Integrating intercohort changes in the composition of social origin into OED triangle research: A literature review and an outlook for future research.

This contribution highlights that conventional social mobility research in the sociological sciences is faced with a severe limitation, as it neglects the importance of intercohort changes in the social origin structure. This is illustrated by the example of OED triangle research, in which compositional changes are only partially recognized as important factors for social fluidity. The paper shows that the implications of an intercohort compositional change of social origin in the process of educational expansion and occupational change have often been overlooked in this literature. The paper makes theoretical and methodological suggestions for a better integration of the compositional change of social origin into future empirical analyses of the OED triangle. [ABSTRACT FROM AUTHOR]