People at the top spend less money than those at the bottom so when you have redistribution toward the top, aggregate demand goes down. Unless you intervene, you're going to have a weak economy unless something else happens. That something else could be a bubble. The United States tried a tech bubble and a housing bubble, but those were not sustainable answers. So I view inequality as a fundamental part of our macroeconomic weakness.

Countries were told they had no incentives because of social ownership. The solution was privatization and profit, profit, profit. Privatization would replace inefficient state ownership, and the profit system plus the huge defense cutbacks would let them take existing resources and an increase in consumption. Worries about distribution and competition or even concerns about democratic processes being undermined by excessive concentration of wealth could be addressed later.

The country has large unfunded liabilities - social security, health care, and there will have to be some adjustments to these problems. What is scary though is how much worse things have gotten in the last eight years, and the Iraq war is one of the main factors.

China's accumulation of reserves is a result of the IMF's mismanagement of the Asian financial crisis a decade or so ago. If countries know they can't rely on the IMF to help them, their best defense is their own reserve cushion. In a time of spreading global recession, too much emphasis on savings in surplus countries like China can impede prospects for global growth.

The momentum today behind the idea of a new global reserve currency reflects, in effect, the rise of the rest in world politics and economics, led by China.

For instance, one of the costs of the war is that soldiers today get very seriously injured but stay alive, and we can keep them alive but at an enormous price.

But individuals and firms spend an enormous amount of resources acquiring information, which affects their beliefs; and actions of others too affect their beliefs.