Аннотация:This article uses state and city level data to evaluate empirically Brinley Thomas's immigrant-as-deterrent view of the relationship between black emigration from the South and European immigration to the North. The article suggests a Todaro-like interpretation of the Great Migration, which emphasizes the importance of job availability to blacks in determining their expected wages. The combination of mass European immigration and hiring practices that favored white immigrants over blacks may have delayed the Great Migration by decades. The empirical work supports this view.