Now, it’s true that the world’s poor have gotten richer in part at the expense of the American lower middle class, and if I were an American politician I would not publicly say that the tradeoff was worth it. But as citizens of the world considering humanity as a whole, we have to say that the tradeoff is worth it. But even in the lower and lower middle classes of rich countries, moderate income gains are not the same as a decline in living standards.
