“…Our data covers journal article abstracts from longitudinal and life course research in the social sciences from several categories: first, studies with samples composed of vulnerable populations only (for migration see, e.g., Korinek, Entwisle, & Jampaklay, 2005; for depression see, e.g., Brockman, 2010;Kort-Butler, 2009; for elderly populations see, e.g., Brockmann, 2010;Ha, Carr, Utz, & Nesse, 2006; for precarious populations see, e.g., Gangl, 2002;Brady, 2006); second, studies that compare vulnerable populations with the 'average' population (e.g., Klimstra, Luyckx, Hale, Goossens, & Meeus, 2010;Agree, Meoni, & Klag, 2010); and, third, studies that identify resources, factors, and processes that cause or result from vulnerability (e.g., Hofferth & Goldcheider, 2010;Hank, 2005;Dunbar et al, 2006). In addition, some contributions include only specific sets of actors in their samples (e.g., adolescents, families, women, and workers), but focus on issues related to vulnerability (e.g., social exclusion, unemployment, and divorce) and, thus, have been included in our data (e.g., Brady, 2006;Friedman, Steinwachs, Temkin-Greener, & Mukamel, 2006;Drenteea, Clay, Roth, & Mittelman, 2006 Articles from academic and specialised journals have been considered and retrieved from two main bibliographic databases: (1) the PsychINFO database, which is an abstracting and indexing database with more than 3 million records devoted to peer-reviewed literature in the behavioural sciences and mental health; and (2) the FRANCIS database, a 2.6 million-record, bibliographic database covering humanities and social-science topics from an international perspective.…”