Central bank credibility and communication are as important as the policy rate itself. Examine with reference to the RBI's Monetary Policy Committee.

The 2016 amendment to the RBI Act created a statutory Monetary Policy Committee (MPC) under Section 45ZB and made price stability the RBI's main objective [1][2]. The 2026 economics prize for the "microeconomic foundations of macroeconomic stabilisation" reinforces one lesson [6]. The repo rate moves only the overnight rate. Credibility and communication shape what people expect, and expectations drive spending, wages and prices.

Why expectations matter as much as the rate

• Firms set prices and workers seek wages based on the expected policy path, not just today's rate.
• A point target gives the clearest signal for anchoring inflation expectations [3].

How the MPC builds credibility

• Accountability: if inflation stays outside 2–6% for three quarters, the RBI must report the reasons, its remedial steps and a timeline to the government [5].
• Communication tools: a resolution after every meeting, individual members' minutes after 14 days, Governor's press briefings and a half-yearly Monetary Policy Report [4].
• Results: average inflation fell from 6.8% (2012–16) to 4.9%, and volatility fell from 2.3% to 1.5% [2]. Expectations became more anchored and held through the COVID and Ukraine shocks [4].

Limits: where the rate alone falls short

• Food and fuel make up over 50% of the consumption basket. These are supply shocks that a rate hike cannot reach. Inflation stayed within the band about three-fourths of the time in 2016–21 but only two-thirds in 2021–26 [2].
• In such shocks, credibility does the real work. It stops food inflation from spilling into core inflation through wages and rents [2].
• Credibility is fragile. Moving to a range target (4–6%) could undermine credibility and fiscal discipline [3]. The RBI itself calls better communication "a work in progress" [4].

Way forward

• Keep the 4% point target, as the March 2026 renewal to 2031 did [4].
• Say clearly whether a food shock is temporary, and use forward guidance to explain the likely rate path.
• Explain dissenting MPC votes clearly so markets read rate decisions correctly.

The MPC's record shows that a rate decision works mainly through the signal it sends. Rate decisions, statutory accountability and transparent communication work together. Building on them through clearer forward guidance will help India keep inflation stable while supporting growth, in line with the RBI Act's mandate.