Question : WPI and CPI

(a) whether the Wholesale Price Inflation (WPI) has started showing increasing trend and marking the ninth consecutive month in which it has been showing positive trend;

(b) if so, the details thereof and the reasons therefor;

(c) whether WPI is the main measures of inflation; and

(d) if so, the details thereof and the reasons for not measuring inflation on the basis of Consumer Price Index (CPI)?

Answer given by the minister

MINISTER OF STATE IN THE MINISTRY OF FINANCE
(SHRI PON RADHAKRISHNAN)

(a) & (b) Inflation based on Wholesale Price Index (WPI) during the last nine months is presented in Table 1. WPI inflation stood at 5.8 per cent in June, 2018. The rise in WPI inflation in recent months is largely due to increase in inflation of fuel & power and manufactured products.
Table 1: Inflation based on WPI (Base 2011-12=100) (in per cent)
Oct-17 Nov-17 Dec-17 Jan-18 Feb-18 Mar-18 Apr-18 May-18 Jun-18 (P)
WPI 3.7 4.0 3.6 3.0 2.7 2.7 3.6 4.4 5.8

Note: (P) – Provisional

(c) & (d): Inflation based on the Consumer Price Index (Combined) (CPI-C) is now taken as the key measure of inflation by the Reserve Bank of India (RBI) to anchor its monetary policy. Inflation is also measured on the basis of the Wholesale Price Index (WPI) to measure the impact of price changes at the wholesale level.
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