* I thank Catherine Sofer, Eleni Iliopulos and Nicolas Dromel for their very useful advice. I thank the participants at the workshop of development economics at the CES, especially Florent Bresson and Martine Audibert for their comments. I thank the participants at the ISS Workshop and the CSAE conference. Finally, I thank OECD Development Center members and Stefen Klasen for their attention.
How does within couples' time-use interactions generate welfare in the family ? In this paper we model economies of scale in time use. Following Browning et al. (2013), we allow intra-household bargaining power to affect the distribution of welfare gains in the family. We estimate the model using the UK Time Use Survey (2000). Results suggest that two singles living apart need about 2h15 more to achieve the same utility level as when living in a couple. A single woman requires on average 55% of the couple time-resources to be as well-off as when she lived in a couple. The time-poverty line is on average 15 hours per individual a day.
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