What drives the restrictiveness of immigration reforms? To what extent does the political ideology of parties in government and parliament matter? Drawing on immigration policy data offering... Show moreWhat drives the restrictiveness of immigration reforms? To what extent does the political ideology of parties in government and parliament matter? Drawing on immigration policy data offering unprecedented historical and geographical coverage, we analyse the drivers of immigration reforms in 21 Western immigration countries between 1970 and 2012. Our results show that there is no robust effect of the political ideology of governments and parliaments on the overall restrictiveness of immigration reforms. Partisan effects are limited to certain migration policy areas, primarily to integration policies, and to certain migrant groups, particularly asylum seekers and undocumented migrants. In contrast, political party ideology does not fundamentally shape decisions on the core of immigration regimes, such as entry policies or policies towards labour and family migrants. Our findings also showcase the importance of international policy diffusion and of trade-offs between reforms in different policy areas. Overall, the analysis highlights that although immigration is subject to heated debates in the public sphere and extensive political bargaining, the actual policies enacted seem primarily driven by factors such as economic growth, social welfare protection and the structure of political systems that are largely independent of the political ideology of parties in power. Show less
Haas, H. de; Czaika, M.; Flahaux, M.L.; Mahendra, E.; Natter, K.; Vezzoli, S.; Villares-Varela, M. 2019
This paper synthesizes insights from new global data on the effectiveness of migration policies. It investigates the complex links between migration policies and migration trends to disentangle... Show moreThis paper synthesizes insights from new global data on the effectiveness of migration policies. It investigates the complex links between migration policies and migration trends to disentangle policy effects from structural migration determinants. The analysis challenges two central assumptions underpinning the popular idea that migration restrictions have failed to curb migration. First, post-WWII global migration levels have not accelerated, but remained relatively stable while most shifts in migration patterns have been directional. Second, post-WWII migration policies have generally liberalized despite political rhetoric suggesting the contrary. While migration policies are generally effective, "substitution effects" can limit their effectiveness, or even make them counterproductive, by geographically diverting migration, interrupting circulation, encouraging unauthorized migration, or prompting "now or never" migration surges. These effects expose fundamental policy dilemmas and highlight the importance of understanding the economic, social, and political trends that shape migration in sometimes counterintuitive, but powerful, ways that largely lie beyond the reach of migration policies. Show less
