I think one big improvement would be if we somehow made it cheaper and easier for developing countries to learn from the sad experience of some of the developed countries, and also from some of the positive experiences we have of building good transportation systems, like high-speed rail.

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.

You can get an ice-cold Coke for around fifty cents in most developing countries, not just in the major population centers, but at the most remote and surprising places. The logistical challenges to resupplying all these outlets are enormous - and yet, the entire system works with incredible efficiency as is confirmed by the price of the product.

Our international banking system allows banks to accept funds gained from tax evasion and other crimes and thereby facilitates and encourages embezzlement by public officials, especially in developing countries, as well as tax evasion and tax avoidance by multinational corporations.

Severe poverty is getting better by some measures, but it's also becoming ever more scandalous because it is now so easily avoidable.

Car prices play a large role in calculating PPPs even while they play no role whatsoever in the consumption or consumption needs of the poor. And the prices of rice, bread and beans play a small role in calculating PPPs even though they play a huge role in meeting the consumption needs of the poor. So the World Bank's method of comparing and converting everything at general purchasing power parities into US dollars is highly distorting within an exercise whose purpose it is to determine whether households are or are not capable of meeting their basic consumption needs.

Often vastly more important, international agreements are not routinely published in draft form or publicly debated, and civil society organizations and ordinary citizens often learn of important global institutional design decisions only after they have already been finalized and adopted. The only reliable way to be kept informed and to exert timely influence is by lobbying and paying the politicians and their negotiators.