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Inflation

Why your money buys less this year than last — measured, caused and controlled.

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📜 Origin of the word

Latin roots

  • Inflare = to blow up / swell

Meaning: A swelling of the general price level.

What?

A sustained rise in the general price level of goods and services, which reduces the purchasing power of money.

Why?

It matters because it redistributes income from savers to borrowers, hurts fixed-income households most, and forces monetary tightening that slows growth.

How?

Measured in India by the Consumer Price Index (CPI-Combined, base 2012) and Wholesale Price Index (base 2011-12); controlled by RBI's repo rate, CRR/SLR, open market operations, plus fiscal and supply-side steps.

Who?

RBI's six-member Monetary Policy Committee sets the policy rate; NSO and Office of the Economic Adviser publish CPI and WPI.

Where?

Tracked nationally and state-wise; rural and urban CPI are published separately.

When?

Flexible inflation targeting adopted in 2016 — CPI target of 4% with a +/- 2% band, reaffirmed in 2021 and 2026 review cycles.

Importance

Inflation is the highest-frequency Economy topic in Prelims and a standard GS-III Mains theme, and it anchors banking-exam questions on monetary policy instruments.

Beginner explanation

If a plate of idli cost Rs.20 last year and Rs.22 today, prices rose 10%. Inflation is that change measured across a whole basket of things a family buys.

NCERT connection

NCERT Class 12 'Introductory Macroeconomics' Ch.3 and Ch.5 cover money, banking and price levels; Class 11 'Indian Economic Development' gives the policy backdrop.

UPSC-level explanation

Distinguish demand-pull vs cost-push, headline vs core, CPI vs WPI vs GDP deflator, and inflation vs deflation vs disinflation vs stagflation. Mains answers should evaluate whether inflation targeting suits an economy where food and fuel dominate the CPI basket (food ~46% weight).

Memory trick

Causes = 'DC-MS': Demand-pull, Cost-push, Money supply, Structural/supply bottlenecks. Cures = 'MFS': Monetary, Fiscal, Supply-side.

History

India saw suppressed inflation in the controlled era, double-digit spikes in 1973-74 (oil shock), 1979-80, 1991 (BoP crisis), and 2009-13 (food inflation), which triggered the shift to formal inflation targeting.

Constitutional articles & provisions

  • RBI Act, Section 45ZA — Central Government, in consultation with RBI, sets the inflation target every five years.
  • RBI Act, Section 45ZB — Constitution of the Monetary Policy Committee.

Important years & timeline

  1. 1934 — RBI Act enacted
  2. 1991 — Balance of payments crisis; high double-digit inflation
  3. 2014 — Urjit Patel Committee recommends CPI-based inflation targeting
  4. 2016 — Monetary Policy Framework Agreement; MPC constituted
  5. 2022 — Post-pandemic supply shocks push CPI above the 6% upper band

Real-life examples

  • · Tomato and onion price spikes moving the whole CPI food index within a month.
  • · Rupee depreciation raising imported crude prices, feeding cost-push inflation.
  • · Repo rate hikes making home-loan EMIs costlier for households.

Current affairs link

Track the latest MPC statement, CPI print, and the food-inflation vs core-inflation divergence — a standard interview and Mains hook.

Mind map

Inflation

  • └ Measurement
  • └ Types
  • └ Causes
  • └ Control

Measurement

  • └ CPI-C
  • └ WPI
  • └ GDP deflator
  • └ Core inflation

Types

  • └ Creeping
  • └ Walking
  • └ Galloping
  • └ Hyper
  • └ Stagflation

Control

  • └ Repo/reverse repo
  • └ CRR & SLR
  • └ OMO
  • └ Buffer stocks & imports

Summary notes

  • · Inflation = sustained rise in the general price level.
  • · India targets 4% CPI with a 2-6% tolerance band.
  • · MPC has six members; RBI Governor holds the casting vote.
  • · Food and fuel volatility make headline inflation noisy — watch core.

Previous year questions

  • UPSC Prelims · 2020

    If the RBI decides to adopt an expansionist monetary policy, which of the following would it not do?

  • UPSC Mains GS-III · 2021

    Do you agree that the inflation-targeting framework has constrained India's growth objectives? Comment.

  • IBPS PO · 2023

    Which index is used by RBI for its inflation-targeting framework?

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