“…Aspirations and intentions to migrate have been analysed from both qualitative and quantitative angles (Docquier et al, 2014;Thulin and Vilhelmson, 2016;Gubert and Senne, 2016;Van Hear et al, 2017;Carling and Schewel, 2017;Carling and Collins, 2017;Dao et al, 2018;Williams et al, 2018). Many quantitative studies have tapped into the Gallup World Poll (among others, see Esipova et al, 2011;Docquier et al, 2014;Esipova et al, 2016;Cai et al, 2014;Bertoli and Ruyssen, 2018;Dao et al, 2018;Tjaden et al, 2018), but other examples have focused on, e.g. Latinobarometro, Arab Barometer (Graham and Markowitz, 2011;Falco and Rotondi, 2016), or ad hoc surveys ( van Dalen, Groenewold, and Fokkema, 2005a; van Dalen, Groenewold, and Schoorl, 2005b;Williams et al, 2018).…”