1. The Haiti thought experiment
Caplan, Bryan. 2012. Why should we restrict immigration? Cato Journal, Vol. 32, No. 1 (Winter 2012)
2. Trillion-dollar bills on the sidewalk
Clemens, Michael. 2011. Economics and Emigration: Trillion-Dollar Bills on the Sidewalk? Working Paper 264, Center for Global Development
3. A country is not a private club
Huemer, Michael. 2010. Is there a right to immigrate? Social Theory and Practice Vol. 36, No. 3 (July 2010), pp. 429-461
4. A country is not a house
Somin, Ilya. 2017. Why a nation is not like a house or a club – and why the difference matters for debates over immigration. The Washington Post, 6 August, 2017
5. Today is not so different from the Middle Ages
Carens, Joseph. 2015. The Ethics of Immigration. Oxford University Press
6. Immigration restrictions are like racial segregation
Somin, Ilya. 2020. Immigration restrictions and racial discrimination share similar roots. The Hill. 24 November 2020
7. Immigration restrictions are like apartheid
Pritchett, Lant. 2006. Let their people come: Breaking the gridlock on international labor mobility. Center for Global Development
8. Coronavirus lockdowns versus the worldwide immigration lockdown
Caplan, Bryan. 2020. The Other Great Shutdown: Opening Statement for the Krikorian/Caplan Soho Forum Debate. Econlib.org. 7 May 2020
9. What if the states of the US had migration restrictions?
Hornberger, Jacob. 1994. The Case for Unilateral Free Trade and Open Immigration. The Future of Freedom Foundation. 1 November 1994
Somin, Ilya. 2012. Immigration and Discrimination. The Volokh Conspiracy. 12 June 2012
10. Why do so many people oppose opening borders?
Huemer, Michael. 2010. Is there a right to immigrate? Social Theory and Practice Vol. 36, No. 3 (July 2010), pp. 429-461
11. Congolese girl, Congolese boy; Congolese girl, German boy
Pritchett, Lant. 2006. Let their people come: Breaking the gridlock on international labor mobility. Center for Global Development
12. The Starving Marvin scenario
Huemer, Michael. 2010. Is there a right to immigrate? Social Theory and Practice Vol. 36, No. 3 (July 2010), pp. 429-461
13. Bob’s job
Huemer, Michael. 2010. Is there a right to immigrate? Social Theory and Practice Vol. 36, No. 3 (July 2010), pp. 429-461
14. Marvin’s bread
Huemer, Michael. 2010. Is there a right to immigrate? Social Theory and Practice Vol. 36, No. 3 (July 2010), pp. 429-461
15. A government’s special duties to its citizens don’t justify immigration restrictions
Huemer, Michael. 2010. Is there a right to immigrate? Social Theory and Practice Vol. 36, No. 3 (July 2010), pp. 429-461
16. That immigrants may burden the government doesn’t justify immigration restrictions
Huemer, Michael. 2010. Is there a right to immigrate? Social Theory and Practice Vol. 36, No. 3 (July 2010), pp. 429-461
17. That immigrants may influence a country’s culture doesn’t justify immigration restrictions
Huemer, Michael. 2010. Is there a right to immigrate? Social Theory and Practice Vol. 36, No. 3 (July 2010), pp. 429-461
18. Sam’s culture; Marvin’s culture
Huemer, Michael. 2010. Is there a right to immigrate? Social Theory and Practice Vol. 36, No. 3 (July 2010), pp. 429-461
19. The dream of open borders
Caplan, Bryan. 2019. Open Borders: The Science and Ethics of Immigration. First Second
20. How many people across the world say they want to permanently migrate?
Esipova, Neli, Anita Pugliese, and Julie Ray. 2018. More Than 750 Million Worldwide Would Migrate If They Could. Gallup News. 10 December 2018
21. How many international migrants are there in the world?
International Organization for Migration. 2019. World Migration Report 2020
International Organization for Migration. World Migration Report 2020 (online version)