Monetarism

Indian Economy glossary

Topic: Schools of Economic Thought and Economic Laws · NCERT: Beyond NCERT

Meaning

Monetarism is the school of economics, led by Milton Friedman, which says that the money supply (the total money in the economy) is the main driver of inflation and of nominal output (output valued at current prices). So it wants the central bank to let money grow at a steady rate set by a rule, not by officials deciding case by case.

It matters because it led the 1970s "counter-revolution" against Keynesian demand management. It also gave the logic behind rule-based monetary policy and independent central banks, including the thinking behind India's inflation targeting.

Formula (quantity equation): MV = PY

  • M = money supply
  • V = velocity (how many times one rupee is spent in a year)
  • P = price level
  • Y = real output

Growth form (approximate): %ΔM + %ΔV ≈ %ΔP + %ΔY

Explanation

Why monetarism rose: stagflation in the 1970s

  • Stagflation means stagnation plus inflation: prices rise fast while output is weak and unemployment is high.
  • The chain of cause and effect (oil shocks of 1973 and 1979):
  • Oil prices jumped, so every firm's production cost went up.
  • Firms raised prices and cut output.

  • High inflation and high unemployment came together.

  • The Phillips curve (the idea that a country can "buy" lower unemployment by accepting higher inflation) failed, because both rose together.

  • Keynesian extra spending now seemed only to add inflation. Monetarism offered another explanation.
  • Friedman's key work: A Monetary History of the United States (1963), written with Anna Schwartz.
  • It blamed the Great Depression on the US Federal Reserve, which let the money supply shrink ("monetary contraction").

  • Keynes had blamed a lack of demand. Friedman blamed bad central-bank policy.

  • Friedman won the Nobel in 1976. His famous line: "Inflation is always and everywhere a monetary phenomenon."

How it works: the quantity equation

  • Main message: if V is stable, too much money growth causes inflation.
  • Worked example (levels): M = ₹100 crore, V = 5, Y = 250 units.
  • PY = 100 × 5 = 500, so P = 500 ÷ 250 = 2.

  • If M rises 10% to ₹110 crore and V and Y stay the same, P = 550 ÷ 250 = 2.2. That is a 10% price rise.

  • Worked example (growth form): money grows 12%, velocity is stable and real GDP grows 7%.

  • Inflation ≈ 12 − 7 = 5%.

  • What pushes inflation up or down:

  • Money growing faster than real output pushes inflation up.
  • Money growing in line with real output keeps prices steady.
  • If V (spending speed) changes suddenly, the link between M and P becomes weaker.

Policy: the k-percent rule, not discretion

  • k-percent rule: the central bank lets the money supply grow at a fixed rate (k%) every year, whatever happens in the economy.
  • k is usually set close to the long-run real growth rate. Then the extra money only matches the extra goods, so prices do not rise.
  • Why a rule? Friedman distrusted discretion (officials choosing policy case by case).
  • Monetary policy works with long, variable time lags.
  • By the time a policy starts to work, the economy may have changed.
  • So "fine-tuning" often makes things worse.

Natural-rate hypothesis (Friedman; also Phelps)

  • Natural rate of unemployment: the unemployment that remains when the economy is in balance. It comes from job-search time, skill mismatch and similar causes, not from weak demand.
  • Short run: printing money cuts unemployment.
  • Inflation rises above what workers expected.

  • Real wages (wages adjusted for prices) fall for a while, so firms hire more.

  • Long run: the gain disappears.

  • Workers learn and ask for higher wages, so real wages go back up.

  • Unemployment returns to the natural rate.

  • Result: the short-run Phillips curve slopes downward, but the long-run Phillips curve is vertical at the natural rate. More inflation does not buy lower unemployment in the long run. It only gives higher inflation.

  • This rests on adaptive expectations (people form their guesses from past values and correct errors slowly).
  • Example: inflation was 6% last year, so people expect about 6%. If it turns out to be 8%, they raise next year's guess only part of the way, say to 7%.
  • For a while, surprise inflation can raise output.

Chicago school and the Cantillon effect

  • Monetarism is part of the Chicago school (University of Chicago), which also stands for deregulation and rational choice.
  • Cantillon effect (Richard Cantillon, c. 1730): new money helps whoever receives it first, before prices rise.
  • The chain:
    • The central bank creates money and buys bonds from banks.
    • Banks and asset holders spend it first, at old prices, so share and property prices rise.
    • A daily-wage worker gets the money last, after prices have already gone up.
  • It is used to link quantitative easing (QE) (large-scale bond buying by a central bank) to asset-price inequality.

In India

India does not follow a strict k-percent money rule. But its monetary framework uses the monetarist idea of rules over discretion, in the form of flexible inflation targeting (FIT): the central bank's main job is to hit an inflation target, but it may also look at growth.

  • Legal basis: the RBI Act was amended in 2016 [2].
  • Section 45ZA: the Central Government, in consultation with the RBI, fixes the inflation target in terms of CPI once every five years [2].

  • Section 45ZB: sets up the Monetary Policy Committee (MPC) [2].

  • Target: CPI inflation of 4% ± 2% (band 2%–6%).

  • First period: 5 August 2016 – 31 March 2021 [1].
  • Retained for 1 April 2021 – 31 March 2026 [1].

  • On 25 March 2026, the government again kept the 4% target and the ±2% band for 1 April 2026 – 31 March 2031 [1].

  • MPC: six members, three from the RBI (the Governor as chair, a Deputy Governor and one RBI officer) and three external members [1][2]. Quorum is four, and on a tie the Governor has a casting vote [1].

  • Accountability: if average inflation stays above 6% or below 2% for three consecutive quarters, the target has failed [1], and the RBI must report to the government [2].
  • Key difference from pure monetarism: the RBI does not target money growth. Its operating target is the weighted average call rate (WACR) (the average overnight rate at which banks lend to each other). The RBI manages liquidity (money available in the banking system) to keep WACR in line with the repo rate (the interest rate at which the RBI lends to banks for a short time) [1].
  • Record: average inflation was about 3.9% in the first four years of FIT. The 6% upper limit was then breached during the pandemic and the Russia–Ukraine conflict [2].

Don't confuse with

  • Keynesianism: Keynes blamed the Great Depression on a lack of demand and backed government spending. Monetarism blamed money-supply contraction by the central bank and backs a steady money rule.
  • Rational expectations / new classical economics (Muth 1961, Lucas, Sargent): in this view, systematic policy cannot fool people even in the short run (policy ineffectiveness). Monetarism uses adaptive expectations, so policy can affect output in the short run, but not in the long run.
  • Inflation targeting (India's FIT): it targets the inflation outcome (4% CPI) and uses the interest rate as its tool. The k-percent rule targets money-supply growth. Both are rules, but they fix different things.
  • Austrian business cycle theory: it blames busts on cheap credit that causes malinvestment (investment in the wrong projects). Monetarism looks at the total quantity of money and the price level.

Prelims Hooks

  • "Inflation is always and everywhere a monetary phenomenon" is Milton Friedman's line. He won the Nobel in 1976.
  • A Monetary History of the United States (1963) was written with Anna Schwartz, not with Phelps or Lucas. It blamed the Great Depression on the Federal Reserve letting the money supply shrink.
  • In MV = PY, V is velocity of money, not volume. The k-percent rule means a fixed yearly money-growth rate.
  • Natural-rate hypothesis (Friedman and Phelps): the long-run Phillips curve is vertical, while the short-run curve slopes downward.
  • Adaptive expectations are linked to Friedman and Phelps. Rational expectations are linked to Muth (1961), Lucas and Sargent.
  • Trap: India's 4% ± 2% target is set by the Central Government in consultation with the RBI (Section 45ZA), not by the MPC [1][2].

Mains Points

  • Rules vs discretion in Indian monetary policy (GS-III): Friedman's distrust of fine-tuning supports a legally fixed target and an independent MPC. Keeping 4% ± 2% in 2026 helps anchor people's inflation expectations [1]. But India targets inflation through the repo rate, not money growth. This is because velocity and money demand are not stable enough for a strict k-percent rule.
  • Limits of the "monetary phenomenon" view in India: food is 45.9% of the CPI basket [2]. So supply shocks (a weak monsoon, costly edible oil) can push inflation above the band even when money growth and demand have not changed. This supports the headline vs core inflation debate raised in the RBI's August 2025 discussion paper [2]. It also shows the Tinbergen problem: one tool (the repo rate) cannot meet several goals.
  • Distributional side of money creation (GS-III): the Cantillon effect warns that easy money and QE first raise share and property prices, which benefits asset holders before wage earners. So monetary stimulus can widen inequality. This supports keeping money growth steady and predictable, and using fiscal policy for equity goals.

Related concepts

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Sources

  1. 1RBI — Monetary Policy: Overview (inflation target reviews 2021 and 2026, MPC composition, quorum, failure definition, WACR)rbi.org.in · tier 1
  2. 2RBI — Review of Monetary Policy Framework: A Discussion Paper (2025)rbi.org.in · tier 1