“…First, seasonal migration decisions of parents are potentially endogenous with respect to the performance of their children. To overcome this issue, most existing studies use instrument variables (IVs), such as historical migration networks (McKenzie & Rapoport, 2011;Davis & Brazil, 2016), the age of the head of the household (Bucheli, Bohara, & Fontenla, 2018), a sibling's age at the time of parental migration (Antman, 2012), and demand shocks in destination countries (Antman, 2011;Cortes, 2015;Theoharides, 2018). The advantages and disadvantages of these instruments are extensively discussed in the literature, for instance, see Antman (2012) for an excellent review.…”