"id","author_first1","author_last1","title","year","publication","volume","issue","pages","keyword0","keyword1","type" "100","Alejandro","Portes","Conclusion: Towards a New World--The Origins and Effects of Transnational Activities","1999","Ethnic and Racial Studies","22-2","Mar.","463-477","Transnational Activities","Transnationalism","journal"