Plausibly Exogenous - Breastfeeding (07/08/2021)

LHS Variable
Children's cognitive development

RHS Variable
Breastfeeding

Plausibly Exogenous Variation
Timing of the children's birth, since those who are born at the weekend or just before are less likely to be breastfed, owing to poorer breastfeeding support services at weekends

Source: Fitzsimons and Vera-Hernandez (2013), “Food for Thought? Breastfeeding and Child Development”