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Explanation of Services Producer Price Index (SPPI, 2015 base)

Explanation

References

Component Ratio by Contract Currency in the SPPI

Table : Component Ratio by Contract Currency in the SPPI
Date Detail Data
Jun. 18, 2019 As of March, 2019  [PDF 69KB]

Response rate

Table : Response rate
Date Detail Data

Hedonic Regression Model for Quality Adjustment

To account for price changes with the quality being constant, the Bank of Japan employs the hedonic regression method. In the 2015 base index, the hedonic regression method is used for items "Computer rental" and "Communications & office equipment rental and machinery & equipment rental for service industries."

For more details, please see "Hedonic Regression Model for Quality Adjustment (CGPI, 2015 base)."