The Wholesale Price Index (WPI) tracks the average price changes of goods sold in bulk before they reach consumers. It shows how prices change from the perspective of businesses and traders, rather than consumers, and is used to monitor inflation.
WPI looks at the prices of goods traded between businesses, not services. It includes:
WPI is calculated by comparing the current price of goods to their price in a base year, using the formula:
WPI = (Current Price of Goods/Price of Goods in Base Year) × 100
WPI measures wholesale prices of goods, while the Consumer Price Index (CPI) measures the prices consumers pay for both goods and services. WPI is more relevant for businesses, while CPI reflects the cost of living for consumers.
A rising WPI indicates higher production costs. If businesses pass these costs to consumers, it can lead to higher retail prices. Policymakers keep an eye on WPI to manage inflation.
WPI in India is influenced by global commodity prices, fuel costs, and agricultural output. For example, an increase in crude oil prices or poor monsoons can sharply raise the WPI.