"The term 'open borders' refers to a policy of allowing free movement between countries without restrictions or border control. In an era characterized by the UK Brexit referendum and the Trump administration's policy of restricting immigration in the US, the prospect of borders opening may seem improbable, but a number of politicians, policymakers, economists, and citizens assert that they are the best way to address the economic and social issues the international community faces today. This volume examines the issue of open borders from a variety of angles, examining its economic, social, political, moral, and legal aspects"--Provided by publisher.