Nancy L. Green & Francois Weil 
Citizenship and Those Who Leave [EPUB ebook] 
The Politics of Emigration and Expatriation

Exit, like entry, has helped define citizenship over the last two centuries, yet little attention has been given to the politics of emigration. How have countries impeded or facilitated people leaving? How have they perceived and regulated those who leave? What relations do they seek to maintain with their citizens abroad and why? Citizenship and Those Who Leave reverses the immigration perspective to examine how nations define themselves not just through entry but through exit as well.