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Rebasing the Corporate Goods Price Index to the Base Year 2010

July 4, 2012
Bank of Japan
Research and Statistics Department

The Corporate Goods Price Index has been rebased and the base year of the index has been updated from 2005 to 2010. The rebasing, which is conducted once every 5 years, consists of the following revisions: (1) updating the base year; (2) updating the weights assigned to commodities and groups; (3) amending commodities (e.g., by adding new commodities and consolidating, deleting and splitting existing commodity groups); and (4) improving methods for the conduct of price surveys and index compilation. This article presents an overview of the results of this rebasing.


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Price Statistics Division, Research and Statistics Department

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