Furthermore, public policy can adjust to accommodate some egalitarian concerns. We can improve our educational system, for example.

Still, to the extent that political worry about rising domestic inequality is justified, it suggests yet another reframing. If our domestic politics can’t handle changes in income distribution, maybe the problem isn’t that capitalism is fundamentally flawed but rather that our political institutions are inflexible. Our politics need not collapse under the pressure of a world that, over all, is becoming wealthier and fairer.

Many egalitarians push for policies to redistribute some income within nations, including the United States. That’s worth considering, but with a cautionary note. Such initiatives will prove more beneficial on the global level if there is more wealth to redistribute. In the United States, greater wealth would maintain the nation’s ability to invest abroad, buy foreign products, absorb immigrants and generate innovation, with significant benefit for global income and equality.

In other words, the true egalitarian should follow the economist’s inclination to seek wealth-maximizing policies, and that means worrying less about inequality within the nation.

Yes, we might consider some useful revisions to current debates on inequality. But globally minded egalitarians should be more optimistic about recent history, realizing that capitalism and economic growth are continuing their historical roles as the greatest and most effective equalizers the world has ever known.

Excerpts from an article by T. Cowen, July 2014, N.Y.Times. Cf. Tyler Cowen at Amazon.