International mobility and its regulation: Migration and capital flows

The last two centuries have been marked by periods of increasing international migration and financial integration, as well as by periods of financial repression and reduced cross-border mobility. The late 19th century was characterized, for instance. by large numbers of migrants leaving Europe, and free movement of capital under the gold standard (albeit with very low volumes in trade and finance as compared with the later 2oth century). Nowadays we witness that the volume of different forms of international migration is again increasing, while many national governments advocate for stricter or more selective migration policies and at least some governments promote tighter controls for the financial sector. Review in historical perspective the main periods of growing/decreasing international mobility (migration and capital controls) and mark key historical moments of change in each field. Are they related phenomena? Propose your own interpretation based on existing academic research.