Economists operate with this image of the homo economicus, the rational economic agent, and while such agents are rare in the wider world, they are common in economics departments. Exemplifying the homo economicus paradigm, economists typically choose their research projects and hypotheses so as to promote their own careers, to maximize their lifetime income. This explains the astonishing pressures toward conformity in academic economics: how deviant views (except those by a few who have already achieved stardom) get crushed by an army of conformists.

The state should never have instituted and enforced legal property rights in persons, and should not have been in the business of returning runaway slaves to their "rightful owners." The whole institution of property in human beings was an unjust social institution and should not have been maintained in existence. It is this sort of thought that I'm appealing to at the supranational level.

Social rules are susceptible to moral analysis. This is, again, relatively familiar in the domestic case, where we now condemn slavery as unjust. And when we affirm this judgment, we're not merely saying that all those people who owned slaves were unethical people; they shouldn't have done that. We do believe this, but that's only part of the point. We also believe that the fugitive slave laws were unjust.

By using general consumption PPPs, the World Bank is, in effect, saying to the poor: "Sure, you cannot buy as much food as the dollar value we attribute to your income would buy in the United States. But then you can buy much more by way of services than you could buy with this PPP equivalent in the United States." But what consolation is this? The poor do not buy services - they are services, on their luckier days.

If we offer a prize, so to speak, to anyone who manages to bring a country under his physical control - namely, that they can then sell the country's resources and borrow in its name - then it's not surprising that generals or guerrilla movements will want to compete for this prize. But that the prize is there is really not the fault of the insiders. It is the fault of the dominant states and of the system of international law they maintain.

The extremely low respect Congress enjoys among the population indicates that the citizens understand broadly what's going on. But the lack of a realistic political reform path leads to apathy and the kind of mindless frustration that manifests itself in the Tea Party-style hatred of any and all government.

Poverty persists, essentially, because the people at the bottom - the bottom quarter and also the bottom half - see the gains from the rising global average income wiped out by severe declines in their relative share.