Birds of passage: Return migration, self-selection and immigration quotas

A key feature of migration in the late 19th and early 20th century is that many migrants returned to Europe after a few years in the United States. A common view is that most temporary migrants planned, upon entry, to eventually return home, yet there is little direct evidence to support this claim. I collect the first dataset on migrants' intentions to stay or return home from Ellis Island arrival records between 1917 and 1924. I find that fewer migrants planned to return home than actually did; many migrants, especially from Eastern and Southern Europe, left the United States unexpectedly. The high rate of unplanned returns implies that the first few years after arrival were more difficult than expected. However, this high rate of unexpected returns lowered after the 1920s migration quotas, suggesting improved outcomes for those lucky enough to enter.