Answer: Our estimates suggest that immigration, measured as the average share of migrants in the population between 1860 and 1920, generated significant economic benefits for today's population, including significantly higher incomes, less poverty, less unemployment, more urbanization, and higher educational attainment
Explanation: In situations where immigrants greatly outnumber the original inhabitants, nativist movements seek to prevent cultural change. Employment: Immigrants acquire jobs that would have otherwise been available to native citizens, limiting native employment; they also create a surplus of labor that lowers wages.