Robert Samuelson has a piece today arguing that China's intervention is necessary to save the world economy. He of course is right in arguing that China has enough economic strength to save the euro and prevent a downward spiral that would throw the world economy back into recession, as some of us have argued.
However, the fact that China may have to play this role is due to the failings of the political leadership in both Europe and the United States. It is essential to remember that this is a crisis of a lack of demand, not supply. For this reason, it is ungodly stupid that so many people are being made to suffer from unemployment and declining living standards.
We know how to get out of this mess, we have known how for 70 years. We just need the government to generate demand. That means spending money. Ideally it would spend money on useful things like education, health care, and infrastructure, but even if it spent money in wasteful ways it would still create jobs and put people to work.
In the 30s we got much of the way back to full employment with the Works Progress Administration and other programs. Much of what was done was useful -- look around, you won't have to go far to find infrastructure built by depression-era programs. However, it took the massive spending associated with World War II to get the economy back to full employment. There is no magic associated with war that makes military spending more effective in creating jobs. The only difference was that the threat to the nation from the Axis powers removed the political obstacles to the necessary spending.
The same situation applies today. We just need to spend money. That applies to both the United States and the euro zone countries. The problem is that we have more people in political leadership positions who want to be morality cops and lecture about balancing budgets rather than focus on policies that will restore economic growth. This includes the top officials at the European Central Bank, many of the voting members of the Federal Reserve Board's Open Market Committee and much of the political leadership in the euro zone countries, the United Kingdom and of course here.
The reason why the world might need China to come to the rescue is that our economic policy is being designed by people who prefer to impose their warped sense of morality rather than pursue serious economic policy. The real humiliation of turning to China is not that we actually need China, it's that our political leaders are prevented us from saving ourselves.