title: A stocks and flows approach to a theory of human migration with examples from past Irish migration.
mesh_terms: D004467:Economics; D004641:Emigration and Immigration / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007182:Income; D007494:Ireland; D008962:Models, Theoretical; D013223:Statistics as Topic; D013997:Time Factors; D006113:United Kingdom; D014481:United States