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The effect of the change in the treatment of foreign exchange rate movement in compiling the Wholesale Price Index

February 10, 2000
Bank of Japan
Research and Statistics Department

For the Wholesale Price Index (WPI), the treatment of foreign exchange rate movement in converting the "contract currency" basis index to the "yen basis" index has been changed from the January 2000 figures. Among the components of the index, the Export Price Index and the Import Price Index are affected by this change, while the Domestic Price Index is not1. The January 2000 figures under the former treatment and their monthly and annual changes are shown on the next page as a reference2.

Note

  1. For detailed information, please refer to "Revision in the treatment of foreign exchange rate movement in compiling the WPI and the IOPI, and in the publication form of "Ten-day index for WPI".
  2. The indexes of the lower-aggregated levels, such as commodities, could be obtained from Price Statistics Division, Research and Statistics Department, Bank of Japan. (Tel. Tokyo (03)3279-1111 Ext. 4060).