LET'S say that you (where "you" may represent an individual, organisation, government, or publication) strongly favour liberal polices based on moral support for individual freedom and on the grounds of economic efficiency. But let's say that the world is an unfair place, such that you can only work for—and in fact achieve—one of the following:

The freedom of individuals to engage in voluntary trade of goods and services across borders,

The freedom of individuals to engage in voluntary lending and borrowing across borders, or

The freedom of individuals to engage in voluntary migration across borders.

Which would most raise global welfare? Which would you work for? And if the answers to those questions are different, why are they different?