Ferdinand Andreas Mohn

• Mohn, Ferdinand A (2019). Marriage migration and the economic trajectories of first- and second-generation immigrants in Norway. Acta Sociologica. . doi: 10.1177/0001699319841668 Fulltekst i vitenarkiv. Vis sammendrag

  Although marriage migration is an important route for immigration to Western Europe, little is known about how it is associated with the labour market trajectories of the minority populations involved. Using longitudinal population registry data on residents from a non-Western migrant background in Norway, this study compares the employment and earnings of those who ‘marry back home’, with those who find a spouse among Norwegian residents with the same national origin background. Following individuals up to 10 years before and after their first marriage (279,527 observations between 1993 and 2010), distributed fixed effects estimations suggest that the labour market trajectory is weaker in the years after marriage for those who have married marriage migrants, albeit the differences are small for men. For women from the first generation, marrying a marriage migrant is associated with lower employment and earnings, progressively declining with time. For women from the second generation, this relative decrease only holds for the labour earnings of employed women. Supplementary analyses indicate that the falling labour market trajectories of women marrying marriage migrants are related to lower educational attainment, higher fertility and stronger associations between motherhood and the labour market.

• Hoff, Rune; Corbett, Karina; Mehlum, Ingrid Sivesind; Mohn, Ferdinand A; Kristensen, Petter; Hanvold, Therese Nordberg & Gran, Jon Michael (2018). The impact of completing upper secondary education - a multi-state model for work, education and health in young men. BMC Public Health.  18 . doi: 10.1186/s12889-018-5420-y Fulltekst i vitenarkiv. Vis sammendrag

  Background: Completing upper secondary education is associated with higher work participation and less health-related absence from work. Although these outcomes are closely interrelated, most studies focus on single outcomes, using cross-sectional designs or short follow-up periods. As such, there is limited knowledge of the long-term outcomes, and how paths for completers and non-completers unfold over time. In this paper, we use multi-state models for time-to-event data to assess the long-term effects of completing upper secondary education on employment, tertiary education, sick leave, and disability pension over twelve and a half years for young men. Methods: Baseline covariates and twelve and a half years of follow-up data on employment, tertiary education, sick leave and disability pension were obtained from national registries for all males born in Norway between 1971 and 1976 (n =184951). The effects of completing upper secondary education (by age 23) were analysed in a multi-state framework, adjusting for both individual and family level confounders. All analyses were done separately for general studies and vocational tracks. Results: Completers do better on a range of outcomes compared to non-completers, for both fields of upper secondary education, but effects of completion change over time. The largest changes are for tertiary education and work, with the probability of work increasing reciprocally to the probability of education. Vocational students are quicker to transfer to the labour market, but tend to have more unemployment, sick leave and disability, and the absolute effects of completion on these outcomes are largest for vocational tracks. However, the relative effects of completion are larger for general studies. Conclusion: Completing upper secondary education increases long-term work participation and lowers health-related absence for young men, but effects diminish over time. Studies that have used shorter follow-up periods could be overstating the negative effects of dropout on labour market participation. Multi-state models are well suited to analyse data on work, education and health-related absence, and can be useful in understanding the dynamic aspects of these outcomes.

• Kristensen, Petter; Corbett, Karina; Mohn, Ferdinand A; Hanvold, Therese Nordberg & Mehlum, Ingrid Sivesind (2018). Information bias of social gradients in sickness absence: a comparison of self-report data in the Norwegian Mother and Child Cohort Study (MoBa) and data in national registries. BMC Public Health.  18:1275, s 1- 10 . doi: 10.1186/s12889-018-6208-9 Fulltekst i vitenarkiv. Vis sammendrag

  Background: Measurement error in self-report questionnaires is a common source of bias in epidemiologic studies. The study aim was to assess information bias of the educational gradient in sickness absence among participants in the Norwegian Mother and Child Cohort Study (MoBa), comparing self-report data with national register data. Methods: MoBa is a national prospective cohort study. The present study included 49,637 participants, born 1967–1976, who gave birth 2000–2009. The highest completed education level was recorded in categories and as educational years. Sickness absence was defined as one or more spell lasting more than 16 days between pregnancy weeks 13 and 30. We computed sickness absence risk in mid-pregnancy in strata of education level. Associations between completed educational years and sickness absence were estimated as risk differences in binomial regression and compared between self-report and register data. In additional analyses, we aimed to explain discrepancies between estimates from the two data sources. Results: The overall registry-based sickness absence risk was 0.478 and decreased for increasingly higher education in a consistent fashion, yielding an additive risk difference in association with one additional education year of − 0.032 (95% confidence interval − 0.035 to − 0.030). The self-report risk was lower (0.307) with a corresponding risk difference of only − 0.013 (95% confidence interval − 0.015 to − 0.011). The main explanation of the lower risk difference in the self-report data was a tendency for mothers in low education categories to omit reporting sickness absence in the questionnaire. Conclusions: A plausible explanation for the biased self-report association is complexity of the sickness absence question and a resulting educational gradient in non-response. As shown for sickness absence in mid-pregnancy in the present study, national registries could be a preferred alternative to self-report questionnaires.

• Mohn, Ferdinand A & Hermansen, Are Skeie (2013). Kan vi forbedre våre årsaksslutninger ved å tegne grafer? En innføring i den kontrafaktiske modellen og kausale grafer (DAGs). Sosiologi i dag.  43(3), s 9- 38
• Fangen, Katrine & Mohn, Ferdinand A (2010). Assessing the Situation: Transnational Review, In Katrine Fangen; Ferdinand Mohn & Kirsten Synnøve Fossan (ed.),  Inclusion and Exclusion of Young Adult Immigrants: Barriers and Bridges.  Ashgate.  ISBN 978-1-4094-0420-0.  9.
• Fangen, Katrine & Mohn, Ferdinand A (2010). Introduction: Turning Adult, Becoming Nationalized, In Katrine Fangen; Ferdinand Mohn & Kirsten Synnøve Fossan (ed.),  Inclusion and Exclusion of Young Adult Immigrants: Barriers and Bridges.  Ashgate.  ISBN 978-1-4094-0420-0.  1.
• Fangen, Katrine & Mohn, Ferdinand A (2010). Norway: The Pitfalls of Egalitarianism, In Katrine Fangen; Ferdinand Mohn & Kirsten Synnøve Fossan (ed.),  Inclusion and Exclusion of Young Adult Immigrants: Barriers and Bridges.  Ashgate.  ISBN 978-1-4094-0420-0.  6.  s 139 - 174

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• Umblijs, Janis; von Simson, Kristine & Mohn, Ferdinand A (2019). Boligens betydning for annen velferd : en gjennomgang av nasjonal og internasjonal forskning. Rapport – Institutt for samfunnsforskning. 2019:01. Fulltekst i vitenarkiv.
• Brekke, Jan-Paul & Mohn, Ferdinand A (2018). Holdninger til innvandring og integrering i Norge: Integreringsbarometeret 2018. Rapport – Institutt for samfunnsforskning. 2018:8. Fulltekst i vitenarkiv.
• Mohn, Ferdinand A (2015). Marital Fault Lines. Spouse Selection and Socioeconomic Assimilation Among the Immigrant Population in Norway.

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