“…The share of common-law partners among couples has increased from 6.3% in 1981 to 19.9% in 2011 5 whereas the share of the population aged 15 and over in a relationship has slightly decreased from 61.1% to 57.7% (Milan, 2011). However, as cohabiting unions are being more unstable than marriage, a growing part of the population is experiencing a dissolution, including children (Musick and Michelmore, 2015;Bohnert, 2012). Ex-cohabiting partners experience a larger drop in income and a higher risk of poverty at separation than ex-married spouses (Avellar and Smock, 2005;Tach and Eads, 2015;Le Bourdais, Jeon, Clark, and Lapierre-Adamcyk, 2016).…”