Economyలో goods and services యొక్క general price level కొంతకాలం పాటు నిరంతరంగా పెరుగుతున్న పరిస్థితిని Inflation – ద్రవ్యోల్బణం అంటారు.
Inflation = Sustained increase in the general price level
దీని ఫలితంగా → Purchasing Power of Money decreases.
ఒక వస్తువు ధర ఒక్కసారి పెరగడం మాత్రమే Inflation కాదు.
Inflationలో economy యొక్క general price levelలో sustained rise ఉండాలి.
Inflation పెరిగినప్పుడు అదే amount of moneyతో కొనగల goods and services quantity తగ్గుతుంది.
Prices ↑ → Money Value ↓
Prices ↓ → Money Value ↑
Inflationను సాధారణంగా price indexలో year-on-year percentage change ద్వారా కొలుస్తారు.
Previous year CPI = 120
Current year CPI = 126
1. Consumer Price Index – CPI
2. Wholesale Price Index – WPI
3. GDP Deflator
CPI households consumption కోసం కొనుగోలు చేసే selected goods and services retail pricesలో కాలానుగుణ మార్పును measure చేస్తుంది.
India's Inflation Targeting Framework → Headline CPI Inflation
CPI inflation:
అంటే ఒక నెల CPIను సాధారణంగా previous year same month CPIతో compare చేసి year-on-year inflation rate లెక్కిస్తారు.
Previous CPI Base → 2012 = 100
New CPI Basket Weights → Household Consumption Expenditure Survey HCES 2023–24 ఆధారంగా update చేశారు.
Current All-India CPI Basket → 299 weighted items
Old answer → CPI Base Year = 2012
Current answer in 2026 → CPI Base Year = 2024
WPI selected commodities యొక్క wholesale-level price movementsను measure చేస్తుంది.
Old WPI series → 2011–12 base
Current WPI series → 2022–23 base
| CPI | WPI |
|---|---|
| Consumer / retail price perspective | Wholesale price perspective |
| Goods and services consumed by households | Wholesale commodity prices |
| Current Base: 2024=100 | Current Base: 2022–23 |
| Inflation targeting uses headline CPI | Not the inflation target measure |
GDP Deflator economyలో domestically produced final goods and services pricesలో broad changeను measure చేస్తుంది.
Nominal GDP = ₹600 crore
Real GDP = ₹500 crore
| CPI | GDP Deflator |
|---|---|
| Consumer basket | Domestically produced final output |
| Basket and weights determined under CPI methodology | Composition changes with domestic production |
| Imported consumer goods can affect CPI | Imports are not part of domestic GDP |
| Used for India's inflation target | Broad national-accounts price measure |
Headline Inflation refers to inflation measured using the overall consumer price basket, including food and fuel components.
Core inflation attempts to capture relatively persistent underlying price pressures by excluding certain volatile components.
CPI excluding Food and Fuel
Core Inflation commonly excludes food and fuel.
India's formal target → Headline CPI, not Core CPI.
| Headline Inflation | Core Inflation |
|---|---|
| Overall CPI | Underlying inflation measure |
| Includes food and fuel | Commonly excludes food and fuel |
| Can be affected strongly by food/energy shocks | Often used to assess persistent pressures |
| India's inflation target | Analytical indicator |
Traditional textbooks use descriptive classifications such as:
Very Slow
Moderate
Rapid
Extremely Rapid
Prices increase slowly and gradually over time.
Prices increase at a more noticeable/moderate pace than creeping inflation.
Price level rises rapidly and inflation becomes increasingly difficult to manage.
Hyperinflation is an extremely rapid and uncontrolled rise in prices, accompanied by a severe loss in the purchasing power and usefulness of money.
Creeping → Walking → Running → Hyperinflation
1. Demand-Pull Inflation
2. Cost-Push Inflation
Aggregate Demand economy యొక్క productive capacity / Aggregate Supply కంటే వేగంగా పెరిగినప్పుడు upward pressure on prices ఏర్పడుతుంది.
Demand PULLS prices upward.
✓ Investment ↑
✓ Government expenditure ↑
✓ Strong export demand
✓ Rapid credit expansion
✓ Expansionary monetary conditions
✓ Tax reductions that stimulate spending
✓ Strong income/employment growth near capacity
Production costs పెరగడం లేదా Aggregate Supplyకు adverse shock రావడం వల్ల firms higher prices charge చేయవలసిన పరిస్థితి ఏర్పడవచ్చు.
Costs PUSH prices upward.
✓ Crude-oil / energy prices ↑
✓ Raw-material prices ↑
✓ Transport costs ↑
✓ Supply-chain disruptions
✓ Crop failure / adverse weather
✓ Imported input prices ↑
✓ Currency depreciation raising import costs
✓ Indirect-tax increases in relevant cases
| Demand-Pull | Cost-Push |
|---|---|
| AD rises strongly | Production costs/supply constraints worsen |
| Demand-side problem | Supply-side problem |
| AD shifts right conceptually | Short-run AS shifts left conceptually |
| Output may initially rise | Output may decline |
| Prices rise | Prices rise |
Workers seek higher wages because prices have risen. Higher wage costs can then contribute to higher prices, which may trigger further wage demands.
Imported goods or essential imported inputs become more expensive, causing domestic price pressures.
International crude oil price ↑
Imported raw-material prices ↑
Domestic currency depreciation → imports costlier
Prices are allowed to rise and the inflationary pressure becomes visible in market prices.
Government controls such as price ceilings, rationing or other restrictions may prevent inflationary pressure from appearing fully in observed prices.
Deflation means a sustained decline in the general price level.
Disinflation means inflation remains positive, but its rate of increase declines.
Inflation 8% → 6% → 4%
Prices are still increasing, but more slowly.
| Concept | What Happens? |
|---|---|
| Inflation | Price level rises |
| Disinflation | Prices still rise, but inflation rate falls |
| Deflation | General price level falls |
Inflation falls from 8% to 4% → Disinflation, not necessarily Deflation.
Prices can still be increasing.
Stagflation refers to the coexistence of high inflation with weak/stagnant economic activity and high unemployment.
Reflation refers to policies intended to raise economic activity and the price level from an undesirably depressed/deflationary condition toward a more normal level.
An inflationary gap arises when planned aggregate expenditure exceeds the value of output available at full-employment capacity at the prevailing prices.
Inflation does not affect every person in exactly the same way. Its effects depend on whether income, wages, interest payments and asset values adjust with prices.
People whose nominal income does not rise with prices suffer a fall in real purchasing power.
With unexpected inflation, repayment occurs in money with lower real purchasing power.
Debtors → Tend to Gain
Creditors → Tend to Lose
If nominal return on savings is below inflation, real purchasing power of savings declines.
Nominal interest = 6%
Inflation = 8%
Moderate or unexpected inflation can sometimes raise nominal revenues faster than some costs, but high and volatile inflation creates uncertainty and can damage investment and production decisions.
Inflation can redistribute real income and wealth between groups depending on contracts, bargaining power, assets and liabilities.
If domestic prices rise substantially relative to trading partners, domestic goods may become less competitive, other things equal.
High and unpredictable inflation makes long-term planning, saving, investment and contracting more difficult.
| Group | Typical Effect of Unexpected Inflation |
|---|---|
| Debtors | May gain |
| Creditors | May lose |
| Fixed-income earners | Lose purchasing power |
| Cash holders | Lose real purchasing power |
| Savers with returns below inflation | Lose in real terms |
| Borrowers with fixed nominal-rate debt | May gain in real terms |
Inflation control measures can broadly be divided into:
2. Fiscal Measures
3. Supply-Side / Administrative Measures
Central Bank can tighten monetary conditions when inflation is driven by excess demand and persistent price pressures.
✓ Policy Repo Rate ↑
✓ CRR ↑, where appropriate
✓ Sale of Government Securities / Liquidity Absorption
✓ Other liquidity-tightening measures
Government can use fiscal policy to moderate excessive aggregate demand.
✓ Reduce non-essential government expenditure
✓ Increase selected taxes, where appropriate
✓ Reduce fiscal stimulus
✓ Improve fiscal discipline
Monetary Control → RBI / Central Bank
Fiscal Control → Government
When inflation originates from shortages and supply constraints, simply reducing demand may not solve the underlying problem.
✓ Increase production
✓ Remove supply bottlenecks
✓ Improve logistics and storage
✓ Release buffer stocks where appropriate
✓ Facilitate necessary imports
✓ Improve productivity
✓ Reduce avoidable distribution constraints
| Inflation Source | Relevant Response |
|---|---|
| Excess aggregate demand | Monetary/fiscal tightening can help |
| Food shortage | Supply augmentation and distribution measures |
| Oil-price shock | Supply/fiscal/energy measures; monetary policy may address second-round effects |
| Supply bottleneck | Remove bottleneck / increase supply |
India follows a Flexible Inflation Targeting framework. Monetary-policy decisions are taken by the Monetary Policy Committee (MPC).
Target → 4%
Lower Tolerance Limit → 2%
Upper Tolerance Limit → 6%
Target Measure → Headline CPI Inflation
On 25 March 2026, the Government renewed the existing inflation target for another five years.
Period → 1 April 2026 to 31 March 2031
The MPC determines the policy repo rate required to achieve the inflation target while the monetary-policy framework also keeps the objective of growth in mind.
↓
Monetary Tightening may be required
↓
Repo Rate may ↑
↓
Demand Pressure may ↓
↓
Inflationary Pressure may moderate
| Period | Target |
|---|---|
| 2016–2021 | 4% ± 2% |
| 2021–2026 | 4% ± 2% |
| 2026–2031 | 4% ± 2% |
4 – 2 – 6
Target = 4%
Lower = 2%
Upper = 6%
Previous CPI = 150
Current CPI = 165
Year 1 Inflation = 8%
Year 2 Inflation = 5%
Answer → Disinflation
Nominal Interest Rate = 9%
Inflation = 5%
Nominal GDP = ₹840 crore
Real GDP = ₹700 crore
Price Index rises from 100 to 125.
Trap 2: Inflation → sustained rise in general price level.
Trap 3: Inflation ↓ does not necessarily mean prices ↓.
Trap 4: Inflation rate falling while remaining positive = Disinflation.
Trap 5: General price level falling = Deflation.
Trap 6: Stagflation = Inflation + stagnation/weak growth + high unemployment.
Trap 7: Demand-Pull = Excess demand.
Trap 8: Cost-Push = Rising costs / adverse supply shock.
Trap 9: Current CPI base = 2024, not 2012.
Trap 10: Current WPI base = 2022–23, not 2011–12.
Trap 11: India's inflation target is based on Headline CPI.
Trap 12: Current target = 4%, tolerance = 2%–6%.
Trap 13: Current target period = April 2026 to March 2031.
Trap 14: Unexpected inflation generally benefits debtors relative to creditors.
Trap 15: CPI and WPI are not the same measure.
A) Sustained rise in general price level
B) Fall in one commodity price
C) Rise in production only
D) Increase in population
A) Rises
B) Falls
C) Remains fixed
D) Doubles
A) Percentage change in a price index
B) Change in population
C) Change in tax revenue
D) Change in exports only
A) WPI
B) Headline CPI
C) GDP Deflator only
D) Core WPI
A) 2004–05
B) 2011–12
C) 2012
D) 2024
A) 2004–05
B) 2011–12
C) 2022–23
D) 2024
A) Consumers
B) Foreign governments
C) Stock exchanges
D) Banks only
A) Real GDP/Nominal GDP ×100
B) Nominal GDP/Real GDP ×100
C) CPI/WPI ×100
D) Money Supply/GDP
A) Includes food and fuel
B) Excludes all food and fuel
C) Measures wages only
D) Measures imports only
A) Food and fuel
B) Housing only
C) Clothing only
D) All services
A) Creeping
B) Running
C) Hyperinflation
D) Deflation
A) Creeping
B) Hyperinflation
C) Deflation
D) Disinflation
A) Hyper → Running → Walking → Creeping
B) Creeping → Walking → Running → Hyper
C) Walking → Creeping → Hyper → Running
D) Running → Hyper → Creeping → Walking
A) Excess aggregate demand
B) Falling demand
C) Falling wages only
D) Excess supply
A) Rising production costs
B) Falling production costs
C) Falling demand only
D) Excess saving only
A) Cost-Push Inflation
B) Deflation necessarily
C) Disinflation necessarily
D) No effect
A) Demand-Pull Inflation
B) Deflation
C) Falling AD
D) Falling prices necessarily
A) Imported Inflation
B) Deflation
C) Reflation
D) Disinflation
A) Wage-Price Spiral
B) Deflationary Gap
C) Multiplier
D) Accelerator
A) Suppressed Inflation
B) Open Inflation
C) Deflation
D) Recession only
A) Inflation
B) Deflation
C) Stagflation
D) Reflation
A) Deflation
B) Disinflation
C) Hyperinflation
D) Stagflation
A) Prices necessarily fall
B) Prices may continue rising at a slower rate
C) Inflation must be negative
D) Price level becomes zero
A) Inflation and economic stagnation
B) Deflation and boom
C) Inflation and rapid growth only
D) Zero inflation and full employment
A) Inflation + weak growth + high unemployment
B) Deflation + full employment
C) High growth + zero unemployment only
D) Falling prices + boom
A) Debtors
B) Creditors
C) Fixed-income earners
D) Cash holders
A) Creditors
B) Debtors
C) Fixed-rate borrowers
D) Borrowers only
A) Purchasing power falls
B) Purchasing power always rises
C) Inflation eliminates money
D) Their nominal income automatically doubles
A) Nominal rate − Inflation
B) Nominal rate + Inflation
C) Inflation − GDP
D) CPI + WPI
A) 3%
B) 5%
C) 8%
D) 13%
A) Raise policy rate
B) Cut policy rate sharply
C) Increase liquidity indefinitely
D) Eliminate taxes
A) Repo Rate ↑
B) Repo Rate ↓
C) OMO purchase
D) CRR reduction
A) Absorbs liquidity
B) Injects liquidity
C) Reduces taxes
D) Raises government expenditure automatically
A) Reducing non-essential expenditure
B) Increasing every subsidy
C) Increasing money supply
D) Reducing repo rate
A) Supply augmentation
B) Only increasing repo rate
C) Increasing shortages
D) Destroying buffer stocks
A) 2%
B) 4%
C) 6%
D) 8%
A) 1%
B) 2%
C) 4%
D) 6%
A) 2%
B) 4%
C) 6%
D) 8%
A) March 2026
B) March 2028
C) March 2030
D) March 2031
A) MPC
B) SEBI
C) CAG
D) NITI Aayog
A) 2%
B) 5%
C) 10%
D) 15%
A) 5%
B) 10%
C) 12%
D) 20%
A) 5%
B) 10%
C) 15%
D) 20%
A) 80
B) 100
C) 120
D) 150
A) 3%
B) 4%
C) 7%
D) 11%
A) General price level must be falling
B) Prices may still be rising
C) Economy is necessarily in deflation
D) Money has no purchasing power
A) Deflation and disinflation are identical
B) Disinflation means slower positive inflation
C) Deflation means inflation falls from 10% to 5%
D) Inflation always means one price rises
A) Demand-Pull – Excess demand
B) Cost-Push – Excess supply only
C) Deflation – Rising price level
D) Stagflation – Rapid growth with zero inflation
A) CPI – Current Base 2024
B) WPI – Current Base 2012
C) CPI – Current Base 2011–12
D) WPI – Current Base 2004–05
A) Headline CPI
B) Core CPI only
C) WPI
D) GDP Deflator
A) Both Assertion and Reason are true; Reason correctly explains Assertion.
B) Both are true; Reason is not the correct explanation.
C) Assertion is true; Reason is false.
D) Assertion is false; Reason is true.
Reason: A given amount of money buys fewer goods when the general price level rises.
Reason: During disinflation, the inflation rate can remain positive.
Reason: Higher energy costs can increase production and transport costs.
Reason: Higher interest rates can reduce interest-sensitive consumption and investment.
Reason: India's formal target is expressed in terms of headline CPI inflation.
A) 2011–12
B) 2012
C) 2022–23
D) 2024
A) HCES 2023–24
B) Census 2001 only
C) Economic Census 1990
D) PLFS 2017–18 only
A) 100 weighted items
B) 299 weighted items
C) 500 items exactly
D) 50 items
A) One year
B) Two years
C) Five years
D) Ten years
A) 2025–2030
B) April 2026–March 2031
C) 2026–2027 only
D) 2021–2026
A) Demand-Pull
B) Cost-Push
C) Deflation
D) Disinflation
A) Making imports more expensive
B) Making all imports free
C) Eliminating production costs
D) Automatically reducing all prices
A) Fixed-income earners
B) Fixed-rate debtors
C) Borrowers generally
D) Exporters necessarily
A) Supply-side pressure
B) Excess money demand only
C) Deflation
D) Reflation
A) Monetary Policy
B) Fiscal Policy
C) Income Tax Policy
D) Government Budget
| Concept | Remember |
|---|---|
| Inflation | Sustained rise in general price level |
| Inflation ↑ | Purchasing Power ↓ |
| CPI | Consumer / Retail perspective |
| Current CPI Base | 2024 = 100 |
| Current WPI Base | 2022–23 |
| GDP Deflator | Nominal GDP / Real GDP × 100 |
| Headline Inflation | Overall CPI including food & fuel |
| Core Inflation | Commonly CPI excluding food & fuel |
| Demand-Pull | Excess Demand |
| Cost-Push | Rising Costs / Supply Shock |
| Deflation | General Price Level ↓ |
| Disinflation | Inflation Rate ↓ but may remain positive |
| Stagflation | Inflation + Stagnation + High Unemployment |
| Unexpected Inflation | Debtors tend to gain; creditors tend to lose |
| Inflation Target | 4% |
| Tolerance Band | 2%–6% |
| Current Target Period | April 2026–March 2031 |
| Target Measure | Headline CPI |
Inflation ↑ → Purchasing Power ↓
Current CPI Base → 2024 = 100
Previous CPI Base → 2012 = 100
Current WPI Base → 2022–23
Headline Inflation → Includes Food & Fuel
Core Inflation → Commonly excludes Food & Fuel
Demand-Pull → Excess Demand
Cost-Push → Rising Production Costs / Supply Shock
Deflation → General Price Level Falls
Disinflation → Inflation Rate Falls
Stagflation → Inflation + Stagnation + Unemployment
Unexpected Inflation → Debtors tend to gain, Creditors tend to lose
Inflation Control → Monetary + Fiscal + Supply-Side Measures
India's Inflation Target → 4%
Tolerance → ±2%
Target Band → 2%–6%
Current Period → April 2026 – March 2031
Target Index → Headline CPI
Inflation → Measurement → CPI → WPI → GDP Deflator → Headline Inflation → Core Inflation → Demand-Pull → Cost-Push → Creeping → Walking → Running → Hyperinflation → Deflation → Disinflation → Stagflation → Effects → Monetary Control → Fiscal Control → Supply-Side Control → 4% Target → 2%–6% Band
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