The term dual-earner couple refers to a cohabiting couple where both partners work in the labor market. The term dual-career couple refers to a dual-earner couple where both partners are pursuing a career; that is, both are committed to work and perhaps also to progression at work. The term dual-earner is sometimes combined with the term dual-carer. In combination, the term refers to cohabiting couples sharing both paid and unpaid work and hence signifies more gender equal couples. The term one-and-a-half-earner couple is sometimes used when one partner works part-time to complement the main earner’s income. Although the term “dual-earner couples” is gender neutral, it is often used to refer specifically to different-sex couples in which both the woman and the man work in the labor market, distinguishing these couples from male-breadwinner couples, in which the man works in the labor market and the woman is a full-time homemaker. In recent years, female-breadwinner couples have become more frequent but are still rare (Moreno-Colom 2015).