The Index displays price changes for big parcels. It is calculated as a weigh average of three components:
- domestic wholesale prices
- wholesales prices for export
- wholesale prices for import
The prices for 2000th year are taken as the basis. The index was created for more exact calculation of price indices (with the help of account of structural alterations in Japanese economy). The growth tendency exerts a positive influence on the national currency, because when the trade companies pay more for goods, they are supposed to transfer their rise cost on consumers.
