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中文摘要：
建立PC机价格指数时样本的质量调整问题变得越来越突出。文章运用线性和非线性的Hedonic函数估计中国1995～2005年的PC机价格指数。最终的估计结果表明，中国质量调整后的PC机价格指数平均每年下降35％。从这个结果可见，考虑质量调整对于价格指数的估计结果有很大的影响。
英文摘要：
In this paper we construct a number of quality-adjusted price indexes for personal computers in the China marketplace over the period 1995-2005. Linear and nonlinear hedonic models are estimated using data from personal computers. The results indicate that nominal quality-adjusted prices declined at an average annual rate of 35%. We conclude that taking quality changes into account has an enormous impact on the time pattern of price indexes for PC＇s.
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