“…By contrast, men with a non-European migrant background find it more difficult to gain access to stable employment and income (FOD WASO and UNIA 2017), which may imply that the importance of male labour force participation diminishes in favour of female labour force participation, as suggested by Oppenheimer (1997). However, given that the majority of men with a Turkish or Maghrebi background marry a second-generation partner of the same origin group or a first-generation migrant from the country of origin (Dupont et al 2017b), this mechanism is likely to be counteracted by the particularly vulnerable socioeconomic position of the female partner, which does not challenge men's role as the main or sole financial provider (FOD WASO and UNIA 2017;Maes, Wood, and Neels 2019;Van den Broucke et al 2015). In sum, whereas these mechanisms can either strengthen or weaken the importance of male labour force participation as a socioeconomic precondition for union formation in groups with a migrant background, we expect to find that the link between male labour force participation and income on the one hand and entry into a coresidential union on the other is positive for secondgeneration men with a Turkish or Maghrebi background and similar or stronger than that of men with a Southern European or no migrant background (Hypothesis 3).…”