Ett intressant nytt papper i Public Choice visar att emigration från ett korrupt land kan göra ursprungslandet mindre korrupt:

Using data from the Gallup Balkan Monitor survey and instrumental variable analysis, we find that having relatives abroad reduces the likelihood of bribing public officials, renders bribe-taking behavior by public officials less acceptable, and reduces the likelihood of being asked for bribes by public officials. [...] Overall, our findings support the conjecture that migration contributes to the transfer of norms and practices from destination to source countries

Källa: Ivlevs, A., & King, R. M. (2017). Does emigration reduce corruption? Public Choice, 171(3–4), 389–408. http://doi.org/10.1007/s11127-017-0442-z