The RBI's Inflation Target Was Built for a Different Kind of Inflation

In 2016, India formally adopted flexible inflation targeting, amending the Reserve Bank of India Act to establish a Monetary Policy Committee with a statutory mandate to keep headline consumer price inflation at 4 percent, with a tolerance band of plus or minus 2 percentage points. It was, by most accounts, a genuine improvement over the earlier multiple-indicator approach, which had given the RBI discretion to weigh growth, inflation, exchange rate stability and financial conditions without a clear anchor, often leaving markets uncertain about the central bank's actual reaction function. Inflation targeting gave India something it had lacked: a transparent, rules-based framework that anchored inflation expectations and insulated monetary policy decisions, at least partially, from short-term political pressure.

Nearly a decade in, the framework has weathered its first real stress test, and the results are instructive less as an indictment of inflation targeting itself than as a demonstration of how a well-designed framework can still strain against a variable it was never well suited to control. Food and beverages account for nearly 46 percent of the Consumer Price Index basket that the Monetary Policy Committee is mandated to target, a far higher weight than in most inflation-targeting economies globally, and food prices in India are driven overwhelmingly by factors monetary policy has essentially no leverage over: monsoon variability, vegetable price spikes from localised crop damage, global commodity shocks in edible oils, and structural supply bottlenecks in perishables that have persisted for decades regardless of interest rate settings.

The tomato and onion problem

The recurring pattern is now familiar to anyone following Indian macroeconomic commentary: a sudden, sharp spike in tomato, onion or pulses prices, driven by unseasonal rain, pest damage or a bad harvest in a key producing state, pushes headline CPI inflation above the RBI's upper tolerance band, even while core inflation, which strips out food and fuel and better reflects demand-side pressure that monetary policy can actually influence, remains comfortably within target or even below it. The RBI then faces an uncomfortable choice: hold rates steady, trusting that a supply shock will prove transitory and reverse once the next harvest arrives, and risk being seen as tolerating above-target inflation against its own mandate; or raise rates to signal commitment to the target, even though higher borrowing costs do essentially nothing to fix a tomato shortage and instead dampen demand in sectors of the economy, like housing and consumer durables, that had nothing to do with the price spike in the first place.

Former RBI governors, including Raghuram Rajan during the framework's design phase, were aware of this tension from the outset and argued that the flexibility in "flexible inflation targeting" was precisely meant to allow the Monetary Policy Committee discretion to look through transient food-price shocks rather than react mechanically to every headline print. In practice, the Committee's public commentary and voting record show it has repeatedly been forced into a defensive communication posture, explaining to markets and the public why it is not raising rates despite above-target headline inflation, a position that works reasonably well when inflation expectations remain anchored but becomes considerably harder to sustain during prolonged episodes, such as the 2022-23 period when headline inflation breached the upper band for three consecutive quarters, triggering the statutory requirement for the RBI to write a formal explanatory letter to the government.

The case for reform, and its risks

Some economists, including several who served on earlier expert committees, have argued that India's target should shift toward core inflation, or toward a food-inflation-adjusted measure, to better reflect the variable monetary policy can actually influence. This is not a fringe position; several inflation-targeting central banks in emerging markets with significant food weights in their baskets have grappled with similar design questions. The counter-argument, which the RBI itself has generally favoured, is that headline CPI is what households actually experience and budget against, and that a target explicitly excluding food would be difficult to communicate to a public for whom food price inflation is often the most keenly felt and politically salient measure of the cost of living. Abandoning headline CPI as the target risks looking, whatever the technical merit, like the central bank redefining away the inflation that ordinary Indians actually feel, a communications problem that could undermine the credibility the framework has painstakingly built since 2016.

What the supply side would need to do instead

The more honest resolution to this tension lies not in reforming the monetary framework but in fixing the supply-side weaknesses that make Indian food prices so volatile in the first place, a task that falls to fiscal and agricultural policy rather than the RBI. Cold storage and warehousing infrastructure remains grossly inadequate relative to India's perishable output, with post-harvest losses for fruits and vegetables estimated at significant double-digit percentages in various studies by the Ministry of Food Processing Industries and allied research bodies. The Agriculture Infrastructure Fund and various cold chain subsidy schemes have made incremental progress, but nowhere near enough to smooth out the kind of localised supply shocks that regularly send onion or tomato prices spiking several-fold within weeks. Similarly, India's continued heavy reliance on imported edible oils, meeting well over half of domestic consumption through imports, leaves food inflation exposed to global price volatility that no amount of clever monetary policy design can insulate against.

A framework doing a difficult job reasonably well

The fair verdict on India's inflation targeting framework after nearly a decade is that it has succeeded in its core institutional purpose, anchoring inflation expectations, professionalising monetary policy decision-making through a transparent committee structure, and ending the era of opaque, politically influenced rate decisions that preceded it. Its recurring struggle with food-driven headline inflation is not principally a flaw in the framework's design but a reflection of unresolved supply-side weaknesses elsewhere in the Indian economy that monetary policy was never equipped to fix. The Monetary Policy Committee deserves credit for generally exercising the discretion the framework affords it rather than reacting mechanically to every food price spike; the government deserves less credit for how slowly it has moved to fix the agricultural supply chains that keep generating those spikes in the first place.