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Detecting intra-national PPP model in China: A median-unbiased estimation approach

  • Woo, Kai-Yin
  • Lee, Shu-Kam
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    This paper studies the speed of price adjustments toward the intra-national PPP level within China based on half-life measurement. We calculate the point estimates of half-lives and the corresponding confidence intervals using median-unbiased estimation methods to correct for downward bias in least squares estimates. The point estimates of half-lives indicate that the speed of mean reversion toward convergence between region pairs is fast. A strong conclusion about the high speed of adjustments is, however, unwarranted in some regions where the confidence intervals for half-life estimates are much wider than others.

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    Article provided by Elsevier in its journal Economic Modelling.

    Volume (Year): 26 (2009)
    Issue (Month): 5 (September)
    Pages: 1029-1032

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    Handle: RePEc:eee:ecmode:v:26:y:2009:i:5:p:1029-1032
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