large, low-skill labor supply (immigration) shock generated by the 2004 expansion of the European Union to Eastern European … overall decline in product innovation generated by the labor supply shock. We present a model that illustrates the channels …

impact of random shocks on short-run shifts in selection into migration. The results suggest that the first Mexican migrants …, an exogenous labour demand shock in the United States, significantly modified local migrant self-selection. Before the … crisis, migrants were positively selected relative to the military elite of the time. During the crisis, migrants became …

This paper examines the factors affecting the decision of migrants to return home in rural areas and their length of … negatively associated with social shocks during the time migrants stay in the cities. Meanwhile, economic shocks positively … influence migrants' staying period in the cities. Besides, migrants from poor communes with poverty reduction projects are more …