“…However, a small but growing literature find less consistent or no evidence on the effect of presence of children on women's labour force participation (Guo et al, 2018;Cruces and He and Zhu, 2016;Azimi, 2015;Cáceres-Delpiano, 2012;Agüero and Marks, 2011;Aguero and Marks, 2008;Orbeta, 2005;Benefo and Pillai, 2003). Using twin birth as a natural experiment, Cáceres-Delpiano (2012) finds that fertility decreases labour supply for mothers with more schooling years and living in urban areas, but it does not have a significant effect on maternal labour supply for residents from rural areas.…”