The reason that the invisible hand often seems invisible is that it is often not there.

We could, of course, always make the payments, simply by printing more money - we simply promise to pay people by giving them dollar bills - but that could set off inflation.

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.

It is unlikely that others would even demand their money back overnight, for doing so would lead to the value of the dollar plummeting; what they would get back with be worth little. But what we are already seeing is an erosion of confidence of the dollar, which is seeing the dollar fall in value.

There will come a moment when the most urgent threats posed by the credit crisis have eased and the larger task before us will be to chart a direction for the economic steps ahead. This will be a dangerous moment. Behind the debates over future policy is a debate over history-a debate over the causes of our current situation. The battle for the past will determine the battle for the present. So it's crucial to get the history straight.

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.

Moreover, because we chose to finance the way by borrowing, our deficits and debt has soared, and this means we have less room for maneuver, less money available to stimulate the eocnomy in the way needed.