“…This paper is the first to report positive effects on maternal labor outcomes of moving from half-day to full-day kindergarten in a large English-speaking education system. Previous research has found only suggestive evidence (e.g., Cannon, Jacknowitz, and Painter 2006;Gibbs 2014) or focused on non-English speaking systems (e.g., Haeck, Lefebvre, and Merrigan 2015;Dhuey, Eid, and Neill 2020). This paper adds to the large body of work on the effects of early education programs on parental labor supply, including literature related to child care subsidies and universal preschool, by providing evidence of the effects of adding additional schooling at the start of primary education.…”