“…There are many social, economic, political and environmental drivers which impact migration flows (Massey et al, 1993), yet there is no single, robust migration theory that can be used for forecasting purposes (Arango, 2000). Besides, even if credible explanations of past migration flows existed, their tenets would be difficult to extrapolate into the futurefor that reason, most of the formal forecasting models rely on time series analysis, be it frequentist or Bayesian (Azose & Raftery, 2015;Bijak, 2010;Bijak & Wiśniowski, 2010;Cappellen, Skjerpen, & Tønnessen, 2015;de Beer, 1993de Beer, , 2008Wiśniowski, Smith, Bijak, Raymer, & Forster, 2015). Besides, even if credible explanations of past migration flows existed, their tenets would be difficult to extrapolate into the futurefor that reason, most of the formal forecasting models rely on time series analysis, be it frequentist or Bayesian (Azose & Raftery, 2015;Bijak, 2010;Bijak & Wiśniowski, 2010;Cappellen, Skjerpen, & Tønnessen, 2015;de Beer, 1993de Beer, , 2008Wiśniowski, Smith, Bijak, Raymer, & Forster, 2015).…”