The construction of theories about migration has long been the goal of scholars from the disciplines of economics, demography, and sociology. Theories aimed at explaining ‘why the phenomena of international migration occur,’ ‘why individuals make the choice of migrating,’ and ‘why the flows of migration fluctuate the way they do’ have tremendously improved our understanding of migration. The political and policy aspects of international migration, however, had largely been neglected until political scientists turned their attention to migration studies more recently.