The global evolution of travel visa regimes: an analysis based on the DEMIG VISA database by Czaika, M, de Haas, H, Villares-Varela, M

The effect of visa policies on international migration dynamics by Czaika, M, de Haas, H

“…The results suggest that travel visa policies significantly decrease inflows, but that this effect is to a large extent undermined by decreasing outflows of the same migrant groups. …”

The effect of Visas on migration processes by Czaika, M, de Haas, H

“…The results suggest that travel visa policies significantly decrease inflows, but this effect is undermined by decreasing outflows of the same migrant groups. …”