Economically, it is unjustified: as China has allowed the yuan to appreciate, it has become far less undervalued, as evidenced by China's shrunken current-account surplus (see article).

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Discipline has always been Zhu's touchstone, from his early days as a lowly planning official to his current position as China's fiscal field marshal.

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Some think China should be cautious and not disrupt the current system as China's growing prosperity has been built on trade and interaction with America and the outside world.

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