What Is Inflation? What’s Actually Happening When Prices Rise

Inflation is the rate at which the general price level of goods and services rises over time, which means the same amount of money buys a little less than it used to. If inflation is running at 5% a year, something that cost ₹100 today would typically cost around ₹105 a year from now, assuming prices across the economy rise at that average rate.

Inflation isn’t measured by tracking a single product’s price. It’s measured across a broad basket of goods and services that a typical household actually buys, weighted by how much of a household’s spending each category represents.

How inflation is actually measured

In India, the primary inflation measure is the Consumer Price Index (CPI), published monthly by the Ministry of Statistics and Programme Implementation (MoSPI). CPI tracks price changes across categories like food and beverages, housing, fuel, clothing, and healthcare, each weighted according to typical household spending patterns. The RBI primarily targets CPI inflation when setting monetary policy. A related measure, the Wholesale Price Index (WPI), tracks prices at the wholesale level and is used more for tracking producer-side price trends than for policy targeting.

Why a little inflation is considered normal, even healthy

It might seem like zero inflation would be ideal, but most central banks, including the RBI, target a moderate, positive inflation rate rather than zero. The RBI’s current inflation target, set under its flexible inflation targeting framework, is 4%, with a tolerance band of plus or minus 2 percentage points. A small, stable amount of inflation gives businesses room to adjust prices and wages gradually, and gives the central bank room to cut interest rates to stimulate the economy when needed, something that’s much harder to do if the starting point is already zero or negative.

The opposite problem, deflation (falling prices), sounds appealing on the surface but is generally considered more economically damaging, since consumers delay purchases expecting further price drops, which can slow economic activity and increase unemployment.

What drives inflation up or down

Inflation typically rises when demand for goods and services outpaces supply (demand-pull inflation), when the costs of production, like fuel, raw materials, or wages, rise and get passed on to consumers (cost-push inflation), or when there’s a broad increase in the money supply relative to the goods and services available in the economy. In practice, inflation in any given period is usually driven by some mix of these factors rather than a single clean cause, which is part of why controlling it is genuinely difficult.

How inflation actually affects your money

Inflation erodes the purchasing power of cash sitting idle: money in a savings account earning 3% interest is losing real value if inflation is running at 5%, even though the account balance is technically growing. This is the core argument for why long-term savings goals usually need to be invested in assets capable of outpacing inflation (like equities or equity mutual funds) rather than left entirely in low-interest instruments.

Inflation also affects borrowers and lenders differently: if you have a fixed-rate loan, inflation effectively reduces the real value of what you owe over time, since you’re repaying with money that’s worth less than when you borrowed it. This is one reason lenders build inflation expectations into the interest rates they charge.

Bottom Line

Inflation is the gradual erosion of what money can buy, tracked through indices like CPI and managed, not eliminated, by central banks aiming for a moderate, stable rate. The practical takeaway for individuals is straightforward even if the underlying economics is complex: money that isn’t earning a return above the inflation rate is quietly losing value, even while the number in the account keeps going up.

This article is for general information and isn’t personalized financial advice.

Sources

• RBI – Flexible Inflation Targeting Framework
• Ministry of Statistics and Programme Implementation – Consumer Price Index