Native Competition and Low-Skilled Immigrant Inflows
研究发现，低技能移民的流入决策受美国本土劳动力供给变化的影响：当福利改革促使更多本土女性进入劳动力市场时，移民会避开这些城市，每增加一名本土女性就业，当地就减少约0.5名女性移民进入。
This paper demonstrates that immigration decisions depend on local labor market conditions by documenting the change in low-skilled immigrant inflows in response to supply increases among the US-born. Using pre-reform welfare participation rates as an instrument for changes in native labor supply, I find that immigrants competing with native entrants systematically prefer cities with smaller supply shocks. The extent of the response is substantial: for each native woman working due to reform, 0.5 fewer female immigrants enter the local labor force. These results provide direct evidence that international migration flows tend to equilibrate returns across US local labor markets.