Inflation vs Affordability Explained: Why RBI's 2–6% Target Misses India's Real Cost of Living

The inflation rate is a flow concept: The inflation rate measures how fast the general price level is rising over a defined period, usually year-on-year. If a representative basket of goods and services cost ₹100 last year and ₹104 this year, headline inflation is 4%. It is essentially the speed of price increase in a single window of time, and it is this number that central banks and policy debates focus on.

Affordability is a stock-and-income concept: Affordability is not about the speed of price rise in one month but about the cumulative burden of years of price increases on a household's budget, set against how much its income has grown over the same years. This is captured in the common complaint that "once prices go up, they never come down." Prices rarely fall in absolute terms; even when the inflation rate slows from 7% to 2%, prices are still rising — just more slowly — so the accumulated cost of living keeps climbing.

Why the gap matters: A government may legitimately celebrate that inflation has fallen to around 2%, but a household may still feel squeezed because the price level today is far above what it was a decade ago, and wages may not have kept up. Affordability therefore depends on two things together — the cumulative rise in prices, and the growth in incomes relative to that rise. This distinction explains why "cost-of-living" and "affordability" crises have become central political issues in countries like the US and the UK, even when headline inflation rates there have moderated.

The representative basket: Every country selects a fixed "basket" of goods and services that an average consumer buys — food, fuel, housing, clothing, transport, health, education and so on — and assigns each item a weight reflecting how much of household spending it accounts for. The Consumer Price Index tracks the price of this entire basket over time. The year-on-year change in the CPI is the headline retail inflation rate — the figure most commonly cited in policy debates and the one the RBI is legally mandated to target.

Who measures it and the new base year: In India, the CPI is compiled and released by the National Statistical Office (NSO) under the Ministry of Statistics and Programme Implementation (MoSPI). In early 2026, the CPI series was updated to a new base year of 2024=100 (replacing 2012=100), with revised item weights derived from the Household Consumption Expenditure Survey. Price data are collected weekly from over 1,400 urban markets and around 1,465 villages across the country.

Headline vs core, and CPI vs WPI: Headline inflation covers the full basket, including volatile food and fuel. Core inflation strips out food and fuel to reveal underlying, more persistent price trends. India's RBI deliberately targets headline CPI (not core), reasoning that food and fuel together make up more than half the consumption basket and matter most to ordinary households. Separately, the Wholesale Price Index (WPI), released by the Office of the Economic Adviser (Ministry of Commerce & Industry), tracks prices at the wholesale/producer level and often signals cost pressures before they reach retail — which is why the April 2026 WPI jump to 8.3%, driven by oil, is being watched closely.

The core idea: Flexible Inflation Targeting is a monetary-policy regime in which the central bank publicly commits to keeping inflation around a numerical target, using its tools (primarily the interest rate) to do so, while also keeping growth in mind. The word "flexible" is crucial — unlike strict inflation targeting (which focuses only on prices), FIT tolerates short-term deviations during supply shocks (such as a food or oil spike) or crises (a pandemic, a war), and aims to return inflation to target over the medium term without crushing growth.

Historical and legal evolution: The shift was recommended by the Urjit Patel Committee (2014), which proposed CPI as the nominal anchor for monetary policy. This was formalised through the Monetary Policy Framework Agreement between the Government and the RBI in 2015, and given statutory backing by amending the RBI Act, 1934 in May 2016. Section 45ZA empowers the Central Government, in consultation with the RBI, to set the CPI inflation target every five years. The first target — 4% with a ±2% band — was notified in August 2016 for 2016–21, retained in 2021 for 2021–26, and, after the second statutory review, retained again for April 2026 to March 2031.

The Monetary Policy Committee (MPC): Under Section 45ZB, decisions are taken not by the Governor alone but by a six-member MPC — three from the RBI (the Governor as ex-officio chairperson, the Deputy Governor in charge of monetary policy, and one RBI officer) and three external members appointed by the Central Government. Decisions are by majority vote, and the Governor has a casting (second) vote in case of a tie. The MPC must meet at least four times a year.

The "failure" clause: Under Section 45ZN, the framework defines a "failure" as inflation remaining outside the 2%–6% band for three consecutive quarters. In such an event, the RBI must submit a report to the Central Government explaining the reasons, the remedial actions proposed, and the estimated time to bring inflation back within the band. This accountability mechanism is what makes the framework rule-based and transparent.

A simple benchmark test: Suppose the general price level in March 2014 is set at 100. Applying each year's inflation rate, the price level reaches about 175 by March 2026 — meaning a basket that cost ₹100 in 2014 cost roughly ₹175 in 2026, a cumulative rise of about 75%. So a person whose income has grown exactly 75% over those twelve years is standing still in real terms; growth below 75% means they are worse off, and above 75% means they are better off. Using a later starting point, the price level rose about 41% between March 2019 and March 2026 — so for someone who began working around 2019, the relevant benchmark is 41%.

Why this reframes the debate: This test shifts attention from the monthly inflation headline to the multi-year cumulative gap between prices and incomes — which is exactly what households feel. It also explains why two economies with similar low inflation rates can have very different affordability experiences, depending on whether wages kept pace.

The three categories of workers: The Periodic Labour Force Survey (PLFS), conducted by the NSO/MoSPI, divides the workforce into three groups — salaried (regular wage earners), self-employed (own-account workers and small vendors), and casual labour (e.g., construction and daily-wage workers). It is the largest official survey on employment, unemployment and earnings.

The affordability finding (2017-18 to 2023-24): For the comparable period, the data indicate that the incomes of salaried and self-employed workers grew slower than the general price level — meaning that in real terms they became worse off. Only casual labour wages grew faster than prices. Official figures underline how depressed wages are at the bottom: the Economic Survey 2024-25, citing PLFS 2023-24, recorded average monthly earnings of about ₹20,702 for regular salaried workers, ₹13,279 for the self-employed, and roughly ₹12,750 for casual labourers — with several independent analyses showing real earnings still below their 2017-18 levels for most categories.

The paradox at the bottom: Although casual labourers' wages rose fastest, they remain the lowest earners in absolute terms. The explainer's illustrative arithmetic shows the scale of the squeeze: at around ₹453 a day in 2025-26, a casual labourer working all 30 days would earn only about ₹13,590 a month, against roughly ₹14,861 for the self-employed and ₹22,699 for the salaried (averaged figures). Compounding this, the share of self-employed workers — the category worst-off on affordability — rose over the period, while the shares of salaried and casual workers fell, signalling a shift toward more precarious, lower-quality work.

The oil-supply shock: The trigger is geopolitical. Escalating conflict involving the US, Israel and Iran, and disruption to shipping through the Strait of Hormuz — the chokepoint through which nearly a fifth of the world's traded crude and gas passes — pushed Brent crude above $100 per barrel in 2026. India imports an estimated 85–90% of its crude oil, so a sustained price rise inflates the import bill, pressures the rupee, widens the current account deficit, and feeds into domestic fuel, transport and manufacturing costs.

The transmission to inflation: A useful RBI rule of thumb is that roughly a 10% rise in crude prices can add about 30 basis points to inflation and shave around 15 basis points off growth. The April 2026 WPI surge to 8.3%, led by mineral oils and crude, is precisely this cost pressure showing up first at the wholesale stage; the worry is that it will gradually pass through to retail CPI, nudging FY27 inflation upward even though the April CPI of 3.48% looked benign.

Cost-push vs demand-pull inflation: This is cost-push (supply-side) inflation — prices rise because input costs rise, not because consumers are spending too much. That distinction is central, because the standard monetary-policy tool (raising interest rates to cool demand) does not address an oil-supply shortage; it can only restrain the demand side of the economy.

The limits of monetary policy: The RBI has no control over the income growth of different worker categories, which depends on jobs, skills, investment and the structure of the economy. On inflation, too, it cannot fix the root cause of an oil shock — inadequate crude supply. Its only real lever is to constrain aggregate demand by raising the policy repo rate.

The transmission mechanism: When the RBI raises the repo rate (the rate at which it lends to banks), banks raise lending rates, making loans for homes, cars and factories costlier. This discourages borrowing and spending, cools demand, and over time eases price pressure. This chain — from the policy rate to bank rates to demand to inflation — is called monetary policy transmission.

The growth-inflation trade-off: The catch is that cooling demand also slows economic activity and can raise unemployment — the inverse relationship economists associate with the Phillips curve, and the "sacrifice ratio" (the growth foregone to reduce inflation). In effect, to fight a supply-driven inflation, the RBI may have to deliberately slow growth — much as the government, by passing on higher fuel costs, nudges people to consume less. This is why, with the June 2026 MPC meeting, markets broadly expect the RBI to hold the repo rate at 5.25% and watch incoming oil and inflation data, since premature tightening against a supply shock could hurt growth without curing the underlying cause.

A global phenomenon: The same gap between falling inflation rates and persistent affordability stress drove the "affordability crisis" in the United States and the "cost-of-living crisis" in the United Kingdom, where voters' choices were shaped more by cumulative price burdens and stagnant real wages than by the latest monthly inflation print. The lesson is that political and social satisfaction tracks real income trajectories over years, not the headline inflation number in any single month — a distinction policymakers everywhere are now grappling with.