Migration is central to economic mobility among many of the world’s poor, opening the door to higher wages and human capital accumulation. Yet, rates of migration are much lower than predicted given the substantial wage premium available in urban areas (Roy 1951; Young 2013; Akram et al. 2017; Beegle et al. 2011; Bryan & Morten 2015). Many potential reasons for this puzzle have been examined, but much of the gap remains unexplained (Clemens 2014; Bryan et al. 2014; Munshi & Rosenzweig 2016; Morten 2016).