In an ideal world, we would all be able to freely move wherever we wanted. The basic right of people to escape from war, persecution and poverty would be accepted as a given, and no one would have their life determined by their place of birth.
But we don’t live in this world, and national borders continue to block the freedom of people to move. Around the world, protectionism is on the rise, as people are told to blame outsiders for threatening their way of life and, more importantly, stealing their jobs.
There is, however, an overwhelming case for open borders that can be made even in the traditionally self-interested language of economics. In fact, our best estimates are that opening the world’s borders could increase global GDP by US$100 trillion.