1. About TwinLife

TwinLife is a longitudinal, interdisciplinary twin family study on the development of social inequality. It takes a genetically informed life course perspective on social inequalities that acknowledges the importance of both genetic and social influences, social structure, and individual agency. The combination of genetically sensitive data, the survey design, multiple indicators of social success or failure, and a variety of environmental variables enables a fine-grained investigation of the complex interplay between nature and nurture concerning social inequality.


1.1 Basic Concept

1.2 Study Design and Sample Structure

1.3 Where and how to get the Data