Companies making those things, however, will not be able to operate in traditional ways, Mr. Kroeber warns.

然而，这样做的公司将无法再按照传统模式运作，克鲁伯先生提醒道。

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"That will take five or 10 years," says Kroeber, "and it will depend on improvements in the social services."

“这将需要五到十年时间”，葛先生认为，“并有赖于社会服务的改善。”

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"People's ability to consume depends on their wages," which have been rising by about 10 percent a year in real terms, Mr. Kroeber says.

“人民的消费能力依赖于其工薪收入”，而按实际价值计算，该项收入正在以每年大约10%的速度增长，葛先生表示。

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Even these robust retail sales understate the strength of consumer spending, says Arthur Kroeber of Dragonomics, a Beijing-based economic research firm.

ECONOMIST: China's households are not as tight-fisted as you think

Overall, Dragonomics's Mr Kroeber thinks that GDP growth in the year to the first quarter of 2009 was not significantly overstated.

ECONOMIST: Is China overstating its true rate of growth?

One reason is that seasonal adjustment is tricky in such countries where the shift from agriculture to industry changes the pattern of seasonality over time, says Mr Kroeber.

ECONOMIST: Is China overstating its true rate of growth?