Bas van der Vossen and Jason Brennan – In Defense of Openness: Why Global Freedom Is the Humane Solution to Global Poverty
Argued from a philosopher’s point of view, though both authors are economically literate. They argue that the most effective poverty-relief policies involve positive-sum interactions. A more open approach to trade, immigration, and entrepreneurship are the most important positive-sum policies, and they back them with strong moral and consequentialist arguments.
People have the right to make deals with each other, or to move somewhere else if they like. For a third party to get in the way and forcibly stop them requires a very strong reason. The burden of proof is on that third party.
Conservatives and nationalists offer few strong justifications for their force-happy trade and immigration policies. Progressives also come off poorly for preferring zero-sum redistribution policies even when positive-sum policies are readily available. Both authors argue instead for a more permissive, open, and liberal approach–liberal in its original, correct sense.