Reading links: review of literature

Immigration as a form of political exit:

Root Causes of Immigration

https://justiceforimmigrants.org/what-we-are-working-on/immigration/root-causes-of-migration/.

How Americans See Illegal Immigration, the Border Wall and Political Compromise

https://www.pewresearch.org/fact-tank/2019/01/16/how-americans-see-illegal-immigration-the-border-wall-and-political-compromise/