One worry is that China's rulers will try to push the yuan down to help exporters.

ECONOMIST: China and India

Chinese officials have said publicly that they will not push down the yuan, and their currency has risen in trade-weighted terms.

ECONOMIST: Trade and the world economy

The collapse in exports in recent months and the consequent job losses in southern China have triggered speculation that the government might try to push down the value of the yuan.

ECONOMIST: China��s trade