Inflation and unemployment

In short

Inflation is a sustained rise in the general price level, which reduces the purchasing power of money; unemployment is the share of the labour force that is willing and able to work but has no work. Macroeconomics studies them together because, in the short run, policies that reduce one often raise the other — the Phillips curve trade-off — while in the long run inflation is a monetary phenomenon and unemployment settles at a structural "natural" rate. For India they are live policy numbers: the RBI's flexible inflation-targeting mandate is CPI headline inflation of 4% with a ±2% band, and employment data come from the Periodic Labour Force Survey (PLFS) of the NSO. These concepts appear in every BA/MA macro paper, in UGC-NET and Indian Economic Service papers, and in bank/NBFC, research-analyst and policy-institute interviews, where candidates are routinely asked to interpret the latest CPI print or PLFS release.

Explained

What inflation is and how it is measured

• Inflation: a sustained increase in the general price level over time; the rate is the percentage change in a price index. Deflation: a sustained fall. Disinflation: inflation falling but still positive. Reflation: deliberate policy to raise prices from a depressed level.
• Consumer Price Index (CPI): a weighted average of retail prices of a fixed consumption basket. India's CPI (Combined) is compiled by the NSO, MoSPI; since January 2026 data the base is 2024 = 100, with weights from the Household Consumption Expenditure Survey 2023-24 (food & beverages about 36.75%, down from 45.86% in the old 2012 = 100 series, which ends at December 2025).
• Wholesale Price Index (WPI): prices of goods at the wholesale/transaction stage, compiled by the Office of the Economic Adviser, DPIIT, base 2022-23 = 100 since 15 June 2026 (replacing 2011-12), with new Producer Price Indices released alongside. It excludes services and retail margins, and gives a large weight to manufactured products and fuel, so it swings more than CPI.
• GDP deflator: nominal GDP ÷ real GDP × 100. It covers every good and service in GDP, with weights that change each year (a Paasche-type index), so it is the broadest measure but is available only quarterly with a lag.
• Headline vs core inflation: headline is the whole basket; core excludes food and fuel, which are volatile and supply-driven, so it signals underlying demand pressure. India's headline is food-dominated, so headline and core can diverge sharply.
• Index number problems: Laspeyres (base-year weights, used by CPI/WPI) overstates inflation because it ignores substitution; Paasche understates; Fisher's ideal index is their geometric mean. Other biases: new goods, quality change, and outlet substitution.
• Point-to-point vs average inflation: year-on-year change in a month's index versus change in the annual average. Also base effect — a low index a year ago mechanically raises this year's print.

Types and causes of inflation

• Demand-pull inflation: aggregate demand rises beyond full-employment output — too much money chasing too few goods. Sources: monetary expansion, deficit financing, export booms, credit growth. Shown as a rightward shift of AD along an upward-sloping or vertical AS.
• Cost-push (supply-shock) inflation: input costs rise — wages, imported crude, fertiliser, food, indirect taxes, rupee depreciation — shifting AS leftward. Output falls while prices rise.
• Wage-price spiral: higher prices → higher wage demands (often index-linked, e.g. DA for government staff) → higher costs → higher prices.
• Structural inflation: inelastic food and infrastructure supply in a developing economy; demand grows faster than agricultural output. Central to the Indian structuralist explanation.
• Imported inflation: pass-through of world prices and the exchange rate; a crude price spike or rupee depreciation raises Indian fuel, fertiliser and edible-oil prices.
• Built-in / expected inflation: inflation that continues because everyone expects it and writes it into contracts.
• By degree: creeping (up to about 3%), walking, galloping/running (double digit), and hyperinflation (Cagan's working definition: over 50% per month) — Germany 1923, Zimbabwe 2008, Venezuela 2018.
• Suppressed inflation: price controls and rationing hold prices down; shortages, queues and black markets appear instead.
• Stagflation: high inflation with high unemployment and stagnant output together — the 1970s oil-shock experience that broke the simple Phillips curve.

Effects of inflation

• Redistribution: hurts creditors, fixed-income earners, pensioners and wage-earners with lagged revisions; helps debtors, holders of real assets and some profit-earners. The key distinction is anticipated vs unanticipated inflation — fully anticipated inflation is largely neutral except for the costs below.
• Shoe-leather cost: resources spent minimising cash holdings. Menu cost: cost of changing prices and catalogues.
• Relative price distortion misallocates resources; uncertainty shortens contracts and raises risk premia, lowering investment.
• Fiscal effects: bracket creep (nominal incomes push taxpayers into higher slabs unless slabs are indexed), and seigniorage / inflation tax — the real revenue a government earns by printing money.
• External effect: domestic inflation above trading partners' erodes export competitiveness unless the nominal exchange rate depreciates (real exchange rate argument).
• Moderate vs high inflation: a low positive rate greases relative wage adjustment and keeps the economy away from deflation and the zero lower bound; high and volatile inflation lowers growth.
• Costs of deflation: falling prices raise the real value of debt (Fisher's debt-deflation), postpone spending and are hard to fight once nominal rates hit zero.

Unemployment: definitions, types and Indian measurement

• Labour force = employed + unemployed (those without work, available for work and seeking it). Unemployment rate = unemployed ÷ labour force × 100. Labour force participation rate (LFPR) = labour force ÷ population. Worker population ratio (WPR) = employed ÷ population. A person leaving the labour force in discouragement lowers the measured unemployment rate.
• Frictional: short-term job search and matching; unavoidable and even useful. Structural: skills, industry or location mismatch — the core of India's problem. Cyclical (demand-deficient / Keynesian): caused by a shortfall of aggregate demand in a recession. Seasonal: agriculture, construction, tourism.
• Disguised unemployment: more people on a job than needed, with near-zero marginal product — classic in Indian family farming. Underemployment: working fewer hours or below skill level. Open unemployment is visible joblessness; India's problem is more under- and disguised employment than open unemployment.
• Educated / white-collar unemployment: graduates queuing for salaried jobs — a well-documented Indian pattern, with unemployment rates for graduates far above those for the illiterate.
• Voluntary vs involuntary: refusing work at the going wage versus being unable to find work at that wage. Classical economics recognises only voluntary; Keynes focused on involuntary.
• Full employment does not mean zero unemployment — it means only frictional and structural unemployment remain, i.e. output is at potential.
• PLFS (NSO): India's official source since 2017-18, replacing the five-yearly NSSO Employment-Unemployment Surveys; it reports annual rural+urban estimates and quarterly urban estimates (and, since the 2025 redesign, monthly estimates). Two concepts: Usual Status (principal + subsidiary activity) over the last 365 days, and Current Weekly Status (CWS) over the last 7 days — CWS always shows a higher unemployment rate.
• Administrative data: EPFO payroll additions, ESIC registrations, National Career Service portal; demand for work under the rural employment guarantee (MGNREGA, replaced from 1 July 2026 by the VB-G RAM G Act) is a rural distress indicator; private estimates (CMIE-CPHS) use a different method and are not comparable with PLFS.
• Jobless growth: output grows with little employment growth — low employment elasticity, discussed widely for Indian manufacturing and IT-led growth.

The Phillips curve, NAIRU and the trade-off

• Original Phillips curve (1958): an inverse, non-linear relation between wage inflation and unemployment in UK data; Samuelson and Solow restated it for price inflation. The policy reading: a menu of inflation-unemployment choices.
• Friedman-Phelps critique (1968): workers care about real wages, so the trade-off exists only while inflation is unexpected. Expected inflation shifts the curve up. Hence the expectations-augmented Phillips curve and the natural rate hypothesis — in the long run unemployment returns to the natural rate whatever the inflation rate, so the long-run Phillips curve is vertical and money is neutral.
• NAIRU: the non-accelerating-inflation rate of unemployment, the unemployment rate at which inflation is stable. Below it, inflation accelerates.
• Accelerationist conclusion: to hold unemployment below NAIRU permanently, inflation must keep rising. The sacrifice ratio measures the cost of disinflation: percentage points of annual output (or unemployment-years) lost per percentage point of inflation reduced.
• Rational expectations (Lucas, Sargent): only unanticipated money matters; a credible, pre-announced disinflation can cost little — the credibility argument for an independent, inflation-targeting central bank.
• Why the curve shifted and flattened: supply shocks (1970s stagflation moved the whole curve out), then globalisation, anchored expectations and labour-market change flattened it, so modern estimates relate inflation mainly to expectations and supply shocks rather than to slack. A large shock can steepen it again, as in the 2021-23 global inflation episode.
• Hysteresis: long spells of unemployment erode skills and attachment, raising the natural rate itself — so cyclical unemployment can become structural.
• Okun's law: the empirical link between the output gap and cyclical unemployment, used to convert one into the other.

Indian policy framework and remedies

• Flexible Inflation Targeting (FIT): introduced by the RBI Act amendment (Finance Act, 2016) and the RBI-Government Monetary Policy Framework Agreement. The target, notified for five-year blocks, is 4% CPI headline inflation with a tolerance band of 2-6%; it was retained for 2021-26 and, by the notification of 25 March 2026, again for 1 April 2026 to 31 March 2031.
• Monetary Policy Committee (MPC): six members — three from the RBI (Governor as chair, Deputy Governor in charge of monetary policy, one RBI officer) and three external members appointed by the Centre for four years; decisions by majority, the Governor holding a casting vote. Failure to meet the target (inflation outside 2-6% for three consecutive quarters) requires a report to the Government explaining the breach and remedial action.
• Monetary instruments: repo rate (the policy rate), Standing Deposit Facility and Marginal Standing Facility forming the LAF corridor, CRR, SLR, open market operations, and communication/stance. Transmission works through the external benchmark lending rate (EBLR) linkage of retail loans.
• Fiscal and supply-side remedies for inflation: cutting the deficit and monetised deficit, lower indirect taxes and import duties on scarce goods, buffer stocks and open-market sales of food grain by FCI, export bans and stock limits under the Essential Commodities Act, 1955, and the Price Stabilisation Fund for pulses and onions. GST, with slabs of 5%, 18% and 40% since 22 September 2025 plus nil-rated items, affects relative prices directly.
• Wage indexation: dearness allowance for government staff and variable dearness allowance for minimum wages are linked to CPI-IW (Labour Bureau, base 2016 = 100); indexation protects real wages but hardwires inflation persistence.
• Employment policy: the statutory rural employment guarantee — MGNREGA's 100 days per rural household until 30 June 2026, and from 1 July 2026 125 days under the Viksit Bharat – Guarantee for Rozgar and Ajeevika Mission (Gramin) Act, 2025 (VB-G RAM G), which repealed MGNREGA (an employment guarantee, not an unemployment insurance scheme); skilling through PMKVY and the National Skill Development Mission; self-employment credit through PMMY/Mudra and Stand-Up India; PLI schemes and MSME support for manufacturing jobs; Employment Linked Incentive scheme routed through EPFO.
• Labour law: the four Labour Codes — Code on Wages, 2019; Industrial Relations Code, 2020; Code on Social Security, 2020; Occupational Safety, Health and Working Conditions Code, 2020 — are in force from 21 November 2025 and replace earlier statutes including the Minimum Wages Act, Industrial Disputes Act, Factories Act and BOCW Act. They bring a national floor wage, a statutory definition of wages, fixed-term employment, gig and platform workers within social security, and revised thresholds for retrenchment permission.

Key points

• Inflation - sustained rise in the general price level; measured by CPI, WPI or the GDP deflator.
• CPI vs WPI - CPI is retail and includes services; WPI is wholesale, goods only, and far more volatile.
• Core inflation - headline minus food and fuel; the better read on demand-side pressure.
• Demand-pull vs cost-push - AD shifts right (output and prices up) versus AS shifts left (prices up, output down).
• Stagflation - simultaneous high inflation and high unemployment; explained by adverse supply shocks, not by the simple Phillips curve.
• Anticipated inflation - costs are mainly shoe-leather, menu and distortion; unanticipated inflation redistributes from creditors to debtors.
• Inflation tax / seigniorage - real resources a government gains by financing deficits with money creation.
• Fisher effect - nominal interest rate ≈ real rate + expected inflation; only ex-ante real rates guide decisions.
• Unemployment rate - unemployed ÷ labour force, not ÷ population; discouraged workers leave the labour force and vanish from the numerator.
• Types - frictional, structural, cyclical, seasonal, plus India's disguised unemployment and underemployment.
• Usual Status vs CWS - PLFS's 365-day and 7-day reference periods; CWS gives the higher rate.
• Full employment - only frictional and structural unemployment left; output equals potential output.
• Short-run Phillips curve - downward-sloping trade-off; it shifts up with expected inflation.
• Long-run Phillips curve - vertical at the natural rate/NAIRU; no permanent trade-off, money is neutral.
• Sacrifice ratio - output or unemployment cost of reducing inflation by one percentage point; smaller when the disinflation is credible.
• Okun's law - a one-percentage-point rise in unemployment above the natural rate goes with roughly a 2-point output gap (coefficient differs by country and era).
• India's FIT mandate - 4% CPI headline, band 2-6%, set by the Centre under the amended RBI Act; a six-member MPC decides the repo rate.
• Hysteresis - prolonged unemployment raises the natural rate itself, turning cyclical joblessness structural.

Formulas and examples

Example 1 — Inflation from an index and the real wage. An illustrative CPI is 185.4 in one October and 196.5 the next.

• π = (196.5 − 185.4)/185.4 × 100 = 11.1/185.4 × 100 = 5.99% ≈ 6.0% year-on-year — just at the upper tolerance limit.
• A clerk's salary rises from ₹40,000 to ₹41,600 (+4.0%). Real wage in base-year rupees: 41,600 × 100/196.5 = ₹21,170 against 40,000 × 100/185.4 = ₹21,575.
• Real wage change = (21,170 − 21,575)/21,575 = −1.88%, so the 4% raise is a real pay cut of about 1.9%.
• At 6% inflation the price level doubles in roughly 70/6 ≈ 11.7 years.

Example 2 — Weighted CPI and the food contribution. A simplified basket:

• Headline inflation = 5.92%; food alone contributes 3.60 points, i.e. 61% of the total.
• Core (excluding food, 0.45, and fuel, 0.07) uses weight 0.48: core = (0.40 + 0.18 + 1.60)/0.48 = 2.18/0.48 = 4.54%.
• Reading: headline is food-driven; core at 4.5% suggests moderate demand pressure — a case for supply-side action rather than aggressive rate hikes.

Example 3 — Fisher equation and real returns. A one-year bank fixed deposit pays 7.2% nominal; expected inflation is 5.0%.

• Approximate real rate = 7.2 − 5.0 = 2.2%.
• Exact: r = (1.072/1.050) − 1 = 0.020952 → 2.10%.
• If actual inflation turns out to be 6.5%, the ex-post real return = (1.072/1.065) − 1 = 0.657% — the unanticipated inflation transferred value from the depositor to the bank/borrower.
• On ₹5,00,000, interest is ₹36,000 but the purchasing-power gain is only about ₹3,286 at 6.5% inflation.

Example 4 — Unemployment rates, LFPR and the discouraged-worker effect. A district of 10,00,000 people aged 15+: 6,00,000 employed, 60,000 unemployed, the rest outside the labour force.

• Labour force = 6,60,000 → LFPR = 66.0%; u = 60,000/6,60,000 × 100 = 9.09%; WPR = 60.0%.
• Now 20,000 of the unemployed stop searching. Labour force = 6,40,000, unemployed = 40,000 → u = 6.25%, LFPR = 64.0%.
• Unemployment "fell" by 2.84 points with not one extra job created — which is why the LFPR and WPR must be read alongside the unemployment rate.

Example 5 — Phillips curve, Okun's law and the sacrifice ratio. Take π = πᵉ − 0.5(u − uₙ) with uₙ = 5% and πᵉ = 6% (last year's inflation, adaptive expectations).

• To cut inflation to 4% this year: 4 = 6 − 0.5(u − 5) → u − 5 = 4 → u = 9%, i.e. 4 points of cyclical unemployment for one year.
• Okun's law with c = 2 gives an output gap of −2 × 4 = −8% of potential output.
• Sacrifice ratio = 8% output lost ÷ 2 points of disinflation = 4 (4% of a year's output per percentage point of inflation reduced).
• If the policy is credible and πᵉ falls straight to 4%, then 4 = 4 − 0.5(u − 5) gives u = 5% — disinflation at no unemployment cost. This is the whole case for central-bank credibility.

Where it is used

• Central banking and regulation: RBI's Department of Economic and Policy Research and Monetary Policy Department build inflation forecasts and output-gap estimates for the MPC's bi-monthly resolution; candidates for RBI Grade B and the Indian Economic Service are examined on exactly this material.
• Banks, NBFCs and insurers: treasury and ALM desks price loans and bonds off expected inflation and the repo rate; the EBLR linkage of retail loans makes MPC decisions a direct business variable; break-even inflation from G-sec versus inflation-indexed bonds is a traded number.
• Equity and macro research: economists at CRISIL, ICRA, CARE, SBI Research, brokerages and rating agencies publish monthly CPI/WPI and PLFS previews; interview rounds ask for a view on the next print and its drivers.
• Corporate planning and pricing: FMCG and cement firms track WPI and input-cost inflation for price revisions; HR teams use CPI-IW for DA and wage settlements; procurement contracts carry price-escalation clauses.
• Government and think tanks: NITI Aayog, Ministry of Finance (Economic Survey chapters on prices and employment), state finance departments, and institutes such as NCAER, IGIDR and CMIE use these frameworks for policy notes.
• Development and welfare work: sizing rural employment-guarantee (VB-G RAM G, formerly MGNREGA) demand, skilling programmes and urban employment schemes depends on correctly reading PLFS unemployment, LFPR and underemployment rather than headline unemployment alone.

Interview questions

• Q: Why does the RBI target CPI rather than WPI? A: CPI measures retail prices faced by households, includes services and is what inflation expectations and wages respond to; WPI excludes services and retail margins and is far more volatile.
• Q: What is core inflation and why do central banks watch it? A: Headline excluding food and fuel; those two are volatile and supply-driven, so core gives a cleaner signal of demand pressure and of where inflation will settle.
• Q: Can unemployment fall while no new jobs are created? A: Yes — if discouraged workers stop searching they leave the labour force, shrinking both numerator and denominator; that is why LFPR and the worker-population ratio must be read with it.
• Q: Why is the long-run Phillips curve vertical? A: Once inflation is anticipated, nominal wages adjust fully and real wages are unchanged, so employment returns to the natural rate at any inflation rate — only unexpected inflation moves unemployment.
• Q: How can inflation and unemployment rise together? A: An adverse supply shock (oil, food, a sharp depreciation) raises costs and prices while cutting output and employment — stagflation; it shifts the Phillips curve rather than moving along it.
• Q: Who gains and who loses from unanticipated inflation? A: Borrowers, holders of real assets and the government (as a nominal debtor earning the inflation tax) gain; lenders, bondholders, pensioners and workers on lagged wage contracts lose.
• Q: Distinguish ex-ante and ex-post real interest rates. A: Ex-ante uses expected inflation and guides saving and investment decisions; ex-post uses realised inflation and measures what the lender actually earned.
• Q: What is the sacrifice ratio and what reduces it? A: The output or unemployment cost per percentage point of disinflation; credibility, an independent inflation-targeting central bank, pre-announcement and flexible wage-setting reduce it.
• Q: Why is India's unemployment rate low while the employment problem is considered severe? A: Because the binding problems are underemployment, disguised unemployment in agriculture, low-productivity self-employment and a low participation rate — especially among women — none of which appear in the open unemployment rate.
• Q: What happens if the RBI misses the inflation band? A: If inflation stays outside 2-6% for three consecutive quarters, the RBI must report to the Central Government explaining the reasons, the remedial actions proposed and the time it will take to return to target.
• Q: Is disguised unemployment the same as underemployment? A: Disguised unemployment means more workers on a task than it needs, with near-zero marginal product; underemployment is broader — working too few hours or below one's skill, including open part-time work.
• Q: Does monetary policy cure cost-push inflation? A: Only partly — it can anchor expectations and stop second-round effects, but the first-round supply shock needs supply measures (buffer stocks, duty cuts, logistics) since tightening into a supply shock costs output.

Common mistakes

• Dividing unemployed by total population instead of by the labour force, and forgetting that LFPR movements can reverse the story.
• Confusing a fall in the inflation rate (disinflation) with falling prices (deflation), and calling a negative WPI print "deflation" in the economy.
• Treating a movement along the short-run Phillips curve as a permanent trade-off, or drawing a single curve to explain stagflation.
• Mixing up the price level and the inflation rate — inflation falling does not mean prices are lower than before, only that they are rising more slowly.
• Comparing PLFS numbers with CMIE-CPHS estimates, or mixing Usual Status and Current Weekly Status rates in the same series.
• Using i − π with realised inflation and calling it the real rate that drove an investment decision; the decision used expected inflation.
• Quoting the RBI target as "4% WPI" or as a hard ceiling of 6% — the target is 4% CPI headline, and 2-6% is a tolerance band, not the target.

Related topics

Monetary policy and the RBI · Aggregate demand and aggregate supply · Money and banking · Business cycles · National income · Fiscal policy and the Union Budget