Theories of family functioning suggest that childbearing with multiple partners may increase parenting stress due to changes in social and economic resources and the challenges associated with parenting across multiple households. These family processes may not be equally stressful for mothers...

We exploit the occurrence of postpartum depression (PPD), which has a random component according to the medical community, to estimate causal effects of a salient form of mental illness on couples’ relationship status. We estimate single-equation models as well as bivariate probit models that...