We examine the effects of offering full-day kindergarten as a replacement for half-day kindergarten on mothers' labour supply using the rollout of full-day kindergarten in Ontario, Canada. We find no effect on the extensive margin but found an effect on the intensive margin. In particular, we find that access to full-day kindergarten increases weekly hours worked and decreases absenteeism among mothers with kindergarten-aged children. This effect is driven by specific sub-groups, namely non-immigrant mothers with low education levels who live in urban areas and have only one child.

中文翻译：

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全日制幼儿园：对孕产妇劳动力供应的影响

我们使用加拿大安大略省推出的全日制幼儿园来研究提供全日制幼儿园代替半日制幼儿园对母亲劳动力供给的影响。我们发现对集约化利润没有影响，但对集约化利润有影响。特别是，我们发现，有幼儿园年龄的孩子的母亲上全日制幼儿园可以增加每周的工作时间，并减少旷工。这种影响是由特定的子群体驱动的，即居住在城市地区且只有一个孩子的，文化程度较低的非移民母亲。