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Difficulty: Very hardInflation Types, Price Indices (CPI, WPI), and Price Control Mechanisms

Consider the macroeconomic measurement of inflation and monetary dynamics in India. Which of the following statements regarding the Wholesale Price Index (WPI), Consumer Price Index (CPI), and inflation control mechanisms are correct?

  1. The Consumer Price Index (Combined) incorporates both goods and services, whereas the Wholesale Price Index tracks price changes exclusively for physical commodities at the primary point of bulk transaction.Answer
  2. B
    Food and beverages account for more than 40% of the total basket weight in the Wholesale Price Index, making it significantly more sensitive to agricultural supply shocks than the Consumer Price Index.
  3. Housing price fluctuations are captured in the CPI (Urban) component but are completely excluded from both CPI (Rural) and the Wholesale Price Index.Answer
  4. D
    When the Reserve Bank of India increases the Cash Reserve Ratio (CRR) to curb demand-pull inflation, it directly expands commercial bank credit creation capacity by augmenting loanable reserves.

Answer

The correct statements are those indicating that CPI (Combined) includes both goods and services while WPI tracks only physical commodities, and that housing price changes are included in CPI (Urban) but excluded from CPI (Rural) and WPI.
CPI (Combined) measures retail price movements for both goods and services across urban and rural households, whereas WPI measures bulk commodity prices at the producer/first-sale level without accounting for services. Furthermore, housing indices are tracked only in the urban component of CPI and are absent from CPI (Rural) and WPI.

Step-by-Step Solution

1
Analyze basket coverage of WPI versus CPI (Combined).
CPI (Combined) covers both retail goods and service sectors, whereas WPI measures wholesale prices of tangible goods at the first point of bulk sale and excludes services.
Differentiating market levels (retail vs wholesale) and sector coverage (goods vs services) is essential for evaluating price index scope.
2
Evaluate food basket weightages across CPI and WPI.
CPI (Combined) gives a weight of 45.86% to food and beverages, whereas WPI assigns only about 24.4% to food items.
Determining weight distribution reveals which index is more heavily impacted by agricultural supply disruptions.
3
Examine the housing group inclusion rules in price indices.
Housing costs are monitored exclusively under CPI (Urban) and are absent from CPI (Rural) and WPI.
Rural housing predominantly consists of ancestral/self-owned property without active rental market pricing, excluding it from rural metrics.
4
Assess the quantitative impact of Cash Reserve Ratio (CRR) hikes.
Raising CRR locks away bank liquidity with the central bank, curtailing credit expansion rather than augmenting it.
Monetary tightening tools reduce bank reserves available for lending to control liquidity and curb demand-pull inflation.

Key Concept

Price Index Structural Differences (CPI vs WPI) and Quantitative Monetary Transmission
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Topics

Inflation Types, Price Indices (CPI, WPI), and Price Control Mechanisms