The causal effects of the number of children on female employment-do European institutional and gender conditions matter?

This paper contributes to the discussion on the effects of the number of children on female employment in Europe. Previous research has usually either (1) compared these effects across countries assuming exogeneity of family size or (2) used methods which deal with endogeneity of family size but focused on single countries. We combine these two approaches by taking a cross-country comparative perspective and applying quasi-experimental methods. We use instrumental variable models, with multiple births as instruments, and the harmonized data from the European Survey on Income and Living Conditions (EU-SILC). We first examine the cross-country variation in the effects of family size on maternal employment across the groups of European countries with similar welfare state regimes. Next, to measure the impact of welfare state regimes in a more precise way, we implement the Index for the Conditions of Work and Family Reconciliation, i.e. a synthetic indicator that captures the impact of family policies, social norms and labour market conditions. This step gives us an opportunity to investigate whether the revealed cross-country differences in the magnitude of the effect of the family size on maternal employment can be attributed to the diversity of European institutional arrangements as well as cultural and structural conditions for combining employment and family duties.