In 88 poor countries for which we have data, in each and every one of the 88, the PPP for food shows that poor people can buy less food than you would expect from the PPP that the World Bank is using. The reason for this is obvious on reflection. It has to do with the fact that most foodstuffs are tradable commodities: basic foodstuffs, such as rice, flour and beans, can easily be conveyed across national borders and their prices will therefore roughly mirror the exchange rates among currencies.

Because present procedures by design favor the affluent, the poor are being increasingly marginalized. And because the poor are so marginalized, they can exert little influence on institutional design decisions. We need to break out of this vicious spiral and create momentum in the opposite direction.

In the United States there are only two exceptions: banks have to report deposits they suspect to be related to either terrorism or drug trafficking. But if your funds derive from trafficking women and children for sexual exploitation, for example, or from illegal arms trafficking or any other illegal activity, then banks in the US are legally free to accept your money and are not required to report your deposit to the authorities.

Domestic power structures are shaped in good part by global arrangements.

Income inequality matters more on a day-to-day basis. Wealth matters more for political influence.

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.

Drafts of domestic legislation must be published, debated and publicly voted on, which gives ample opportunities to civil society organizations and ordinary citizens to at least understand what's being proposed and to voice and to organize opposition before the decision is made.