How Open Immigration Could Double the Global Economy (The Week)

From the Article:

"...[M]any economists want to go further and move toward a world of open borders and totally unrestricted immigration.

Why? We live in a world where job opportunities are spread out across the face of the globe. By giving individuals the freedom of movement to work anywhere, we let people specialize in what they are best at.

According to the paper "Economics and Emigration: Trillion-Dollar Bills on the Sidewalk?" (2011) by Michael Clemens at the Center for Global Development, open borders could lead to a one-time boost in world economic activity of about 50 to 150 percent. That would be enough to lift billions out of poverty and it could come about simply from lifting restrictions on human movement and letting people find their niche in the global economy."

Read it here