The Application of Hedonic Imputation Method in the Quality-adjusted Price Index

Imputation method is a widely used approach to dealing with missing data.When compiling the price indices,missing data are often encountered.Some products disappear in the current period temporarily or permanently,or new products appear in the market.At the same time change may occur,so the price index may be biased with quality change bias.Hedonic imputation method could impute the missing price,also reduce the change bias.The paper discusses the different forms of hedonic imputation indexes and compares their different characteristics.In the final part the paper empirically compiles the hedonic imputation index for notebook PC and draws some conclusions.