Global migration routes reveal the scale and complexity of movement across continents, with millions fleeing poverty, ...

Tracking global migration has long been hampered by poor, outdated data. Now researchers have harnessed social media data to ...

These estimates, drawn from the location data of three billion Facebook users, provide a view of human migration in ...

Destination substitution, whereby stricter policies in the intended destination divert people to other places or leave them stranded in transit. Categorical substitution, whereby tighter policies for ...