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What India’s CPI reveals about the transmission of price shocks

What India’s CPI reveals about the transmission of price shocks
Photo credit: Sunday Guardian

Rather than a uniform increase in agricultural prices, the CPI reveals selective pressures shaped by commodity-specific supply conditions, seasonal arrivals and earlier price levels. 

Indian prices have come under pressure on several fronts this year. Global energy prices have risen sharply amid the conflict in West Asia, and the monsoon ended 13% below its long-period average, raising concerns about farm output. Pressures of this kind do not reach households all at once. They show up first in the costs of producers, and only later, and unevenly, in the prices consumers pay. The August data make this visible. Wholesale inflation (WPI) stood at 9.92%, more than twice the 4.82% recorded by the Consumer Price Index (CPI). The two indices capture different baskets, with different weights and stages of pricing, so the gap between them shows where pressure is still building and where it has already reached households. Read item by item, the CPI shows which pressures have arrived and which are still on their way.

Food and beverages account for 36.75% of India’s CPI basket, making it the largest expenditure category. In August 2026, inflation in this category stood at 5.66%, but the aggregate concealed considerable variation. Onion, garlic and ginger recorded inflation of 48.27%, 43.60% and 73.82%, respectively, while tomato prices declined by 31.09% over the previous year. Rather than a uniform increase in agricultural prices, the CPI reveals selective pressures shaped by commodity specific supply conditions, seasonal arrivals and earlier price levels. Food prices have a direct bearing on household expenditure, particularly because essential consumption cannot easily be deferred. With El Niño intensifying and Maharashtra declaring nearly 74% talukas drought-affected in September, agricultural stress is becoming more pronounced. However, August CPI captures only the early and uneven price pressures, as the effects of crop disruptions may emerge with a lag.

Originally published by Sunday Guardian on Oct 11, 2026 Read the full article at sundayguardianlive.com
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