Migration response to an immigration shock: evidence from Russia’s aggression against Ukraine
研究2014年俄罗斯侵略乌克兰导致大量乌克兰人涌入波兰后，对波兰本地人口迁移模式的影响，发现移民流入挤出了内部迁入，但减少了本地人口的内外迁出。
Abstract This article examines the impact of the massive and unexpected inflow of Ukrainians that resulted from Russia’s aggression in 2014 on local migration patterns in Poland. For identification, I use an instrumental variable approach drawing on unique historical data on the forced resettlement of Ukrainians in Poland after World War II. The results show that the regional inflow of immigrants, while crowding out internal in-migration, decreases both internal and international out-migration of the local population. I provide supportive evidence that the decrease in out-migration is due to an enlargement of local labor markets.