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Explanation of Services Producer Price Index (SPPI, 2010 base)

Explanation

References

Results of Wholesale Services Price Survey

Table : Results of Wholesale Services Price Survey
Date Detail Data
Feb. 22, 2016 As of February, 2016  [CSV 2KB]
Oct. 30, 2014 As of October, 2014  [CSV 1KB]

Component Ratio by Contract Currency in the SPPI

Table : Component Ratio by Contract Currency in the SPPI
Date Detail Data
Mar. 16, 2018 As of December, 2017  [PDF 76KB]
Apr. 12, 2017 As of December, 2016  [PDF 74KB]
Mar. 15, 2016 As of December, 2015  [PDF 69KB]
Mar. 16, 2015 As of December, 2014  [PDF 69KB]
Jun. 25, 2014 As of April, 2014  [PDF 69KB]

Response rate

Table : Response rate
Date Detail Data
Mar. 29, 2018 As of December, 2017  [PDF 109KB]

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)."