Can monetary policy address inflation arising from supply-side disruption?

Monetary policy can influence inflation, but it cannot directly solve supply-side disruptions. Higher interest rates can reduce demand and cool price pressures, but they cannot eliminate shortages or restore disrupted supplies. Effective monetary policy must target both inflation and its underlying causes. On October 7, 2026, India's Monetary Policy Committee raised the repo rate by 25 basis points, signaling a shift towards "calibrated tightening."

This indicates the committee's readiness to take further action based on inflation trends. However, the RBI's recent 4.82% headline inflation rate exceeds the 4% target for four consecutive months, with projected core inflation at 4.4% this year. These figures underscore the need for vigilance, but they don't indicate that excessive spending is the primary issue.

Policymakers must distinguish between demand-pull inflation, where spending outpaces supply, and supply-driven inflation, where scarcity or rising production costs drive prices up. While higher rates can curb spending when demand is robust, they don't address supply shortfalls. Moreover, repeated shocks to food and fuel prices can have cascading effects, leading to expectations of sustained inflation.

While monetary policy can help temper this inflationary spread, it cannot replace the need for addressing supply-side disruptions. For small firms, the combination of higher ingredient costs, increased borrowing costs, and weaker sales creates a significant squeeze. Raising prices to cover these costs could alienate customers, while maintaining prices could eat into profits and hinder hiring.

Monetary policy is crucial for controlling inflation's spread and persistence, but it must be complemented by policies that tackle the root causes of price increases.