Those Americans who believe in equal opportunity might argue that the persons in the rich country are not obligated to accept any of the immigrants who want to come from the poor country. Everyone had the same chances at the outset, and some groups just happened to make more efficient use of the resources at their disposal.
Those Americans who believe in equal outcomes would assert that all individuals currently living in this hypothetical universe have identical claims on the economic resources available.
- An open border immigration policy (or free trade) would tend to equalize the resources available to the populations of the two countries. | 
