Fiscal policy

Topic: Government Budget, Fiscal Policy and FRBM · NCERT: Class 11, Ch 3 "Liberalisation, Privatisation and Globalisation: An Appraisal"; Class 12, Ch 5 "Government Budget and the Economy"

Meaning

Fiscal policy is the government's use of its spending (G), taxes (T) and transfers (TR) to change total demand in the economy, so that output and employment stay steady. The IMF puts it simply: "the use of government spending and taxation to influence the economy" [4].

• Because the goal is to keep output steady, the budget is often in surplus (income more than spending) or deficit (spending more than income). It is rarely exactly balanced.
• Fiscal policy matters because every rupee the government spends or taxes changes income many times over through the multiplier. How large that effect is decides how well a stimulus works.

Equilibrium income (NCERT Class 12, Box 5.1): Y* = (C̄ − cT + cTR + I + G) / (1 − c) Here c is the marginal propensity to consume (MPC), the share of each extra rupee of income that people spend. C̄ is autonomous consumption, the spending that happens even at zero income.

Explanation

How the government changes income

• Keynes made the case for fiscal policy in The General Theory of Employment, Interest and Money (1936).

• When private demand is weak, the government should fill the gap.

• G works directly.

• Government purchases are part of aggregate demand (AD), the total planned spending in the economy.

• So ₹1 of G raises AD by ₹1.

• T and TR work indirectly. They act through disposable income (the money households actually have left to spend or save):

• YD = Y − T + TR
• Households spend only c of any change in YD and save the rest.

• This is why T and TR carry an extra c in the formula.

• Model:

• Consumption: C = C̄ + c(Y − T + TR)
• Aggregate demand: AD = C̄ + c(Y − T + TR) + I + G

• Setting Y = AD gives Y* = (C̄ − cT + cTR + I + G)/(1 − c)

• Lump-sum tax (a fixed tax amount that does not change with income):

• Raising it cuts consumption by the same amount at every income level.
• So AD shifts down in parallel and its slope stays the same.

The multipliers: the tools of fiscal policy

A multiplier is the final change in income (ΔY) divided by the change in the fiscal variable that caused it.

Multiplier	Formula	c = 0.8	c = 0.75
Government expenditure	1/(1 − c)	5	4
Tax (lump-sum)	−c/(1 − c)	−4	−3
Transfer	c/(1 − c)	4	3
Balanced budget	1	1	1
G, with proportional tax	1/[1 − c(1 − t)]	2.5 (t = 0.25)	2.5 (t = 0.2)

• The tax multiplier is negative.

• Higher tax → lower disposable income → less consumption → lower income.

• The tax multiplier is smaller in size, always exactly 1 less than the G multiplier.

• A ₹100 tax cut does not reach AD as ₹100.

• Households save part of it, so only cΔT = ₹80 is spent in the first round (c = 0.8).

• A transfer is a "negative tax".

• It has the same size of effect as a tax, c/(1 − c), but it raises income.

• Policy lesson: rupee for rupee, government spending lifts output more than an equal tax cut or cash transfer.

Worked example (c = 0.8, NCERT Example 5.1):

• ΔG = ₹100: 100 + 80 + 64 + 51.2 + … = 100 × 1/(1 − 0.8) = ₹500
• Tax cut of ₹100: 80 + 64 + 51.2 + … = 100 × 0.8/0.2 = ₹400
• ΔG = ΔT = ₹100: 500 − 400 = ₹100. So the balanced budget multiplier is 1.
• The two totals differ only by the first round (₹100).

Exercise 5 (NCERT): C = 100 + 0.75Y, I = 200, G = 150, net taxes = 100.

• Y = 100 + 0.75(Y − 100) + 200 + 150 → 0.25Y = 375 → Y = 1,500
• G multiplier = 4. Tax multiplier = −3. ΔG = 200 → ΔY = +800.

Balanced budget and proportional taxes

• Balanced budget multiplier = 1.
• Raise G and T by the same amount, so the deficit does not change.
• Income still rises by exactly ΔG, for any value of c (with lump-sum taxes).
• Algebra: ΔY = ΔG + c(ΔY − ΔT). Put ΔT = ΔG, and ΔY(1 − c) = ΔG(1 − c).

• Meaning: even a balanced budget is not neutral.

• Proportional tax (a fixed share of income, T = tY, like a flat income-tax rate):

• Consumption becomes C = C̄ + c(1 − t)Y + cTR.
• The effective MPC falls to c(1 − t), so AD becomes flatter.
• Equilibrium: Y* = Ā / [1 − c(1 − t)], where Ā = C̄ + cTR + I + G (all autonomous spending).
• Example 5.2 (c = 0.8, t = 0.25): c(1 − t) = 0.6 → multiplier = 1/0.4 = 2.5. So ΔG = 100 gives +250, half the lump-sum result of 500.
• Exercise 9 (c = 0.75, t = 0.2): ΔG = +20 → +50. ΔTR = −20 → 1.875 × (−20) = −37.5.

• The transfer multiplier with a proportional tax is c/[1 − c(1 − t)].

• Cutting the tax rate t:

• AD shifts up.

• AD also pivots and becomes steeper, because its slope c(1 − t) rises.

• Automatic stabiliser (a built-in shock absorber that needs no new government decision):

• In a boom → tax collections rise on their own → spending is held back.
• In a slump → collections fall on their own → disposable income is supported.
• The IMF says these "do not depend on specific actions but operate in relation to the business cycle". They "tend to be larger in advanced economies", because they depend on the size of the government [4].

What makes fiscal policy stronger or weaker

• Real multipliers are much smaller than the textbook 4 or 5. Taxes, imports, saving and interest-rate reactions all leak demand out of the economy.
• Impact multiplier = the effect in the first year. Peak or cumulative multiplier = the largest or total effect over several years.
• Slack: multipliers are bigger in a recession, when workers and machines are idle. At full employment, extra G mostly pushes up prices.
• Imports: multipliers are larger when "only a small part of the stimulus is saved or spent on imports" [4].
• Monetary accommodation (the central bank keeps interest rates low while the government spends):
• Government borrows more → interest rates rise → private investment falls. This is crowding out.

• Multipliers are larger when "interest rates do not rise as a consequence of the fiscal expansion" [4].

• Credibility: multipliers are larger when the fiscal position after the stimulus "is viewed as sustainable" [4].

• Tax structure: a higher proportional tax rate t means a smaller multiplier.

In India

• Constitution: each year the Union sets out its fiscal policy in the Annual Financial Statement (Art. 112), which is the Union Budget.
• Law: since 2003, the FRBM Act limits how large the deficit can be. A believable deficit path keeps bond interest rates low, and that makes a stimulus work better.
• Indian multiplier estimates:
• RBI Working Paper 07/2013 (September 2013, Structural VAR study):
  • A 1% rise in combined Centre and State spending raises GDP by about 0.11%. That is an impact multiplier of 0.59 [2].
  • Capital outlay (spending that creates assets, like roads and power plants): impact multiplier 1.29, peak 3.56, reached in about the fourth year [2].
  • Revenue expenditure (salaries, interest, subsidies): impact multiplier only 0.37, peaking in the first year [2].
  • Capital outlay was just 13% of combined spending at the time. The study advised raising this share step by step [2].
  • State spending multipliers were higher than the Centre's, so the study argued for more decentralisation [2].
• NIPFP (Bose and Bhanumurthy, 2015): capital expenditure multiplier about 2.45, against about 0.99 for revenue spending and transfers.

• RBI Bulletin (June 2021): India's capital expenditure multiplier is "known to be higher than 2" [3].

• Why capex does more:

• It builds productive capacity (roads, railways, power), not just demand.
• It crowds in private investment: better infrastructure makes private projects more profitable.

• Revenue spending mostly adds to consumption, and part of that is saved or spent on imports.

• Example: India's 2020-21 COVID response was counter-cyclical fiscal policy. The government spent more in a bad year to support demand.

Don't confuse with

• Monetary policy: run by the RBI, using interest rates and money supply. Fiscal policy is run by the government through the budget, using spending, taxes and transfers.
• Automatic stabilisers vs discretionary fiscal policy: automatic stabilisers, such as a proportional income tax, work on their own over the business cycle. Discretionary policy needs a new decision, such as announcing a stimulus package.
• Balanced budget vs neutral budget: a balanced increase in G and T is not neutral. Its multiplier is 1, not zero.
• Government expenditure multiplier vs tax/transfer multiplier: the G multiplier is 1/(1 − c). The tax and transfer multipliers are c/(1 − c) in size, which is always smaller by exactly 1.

Prelims Hooks

• G multiplier = 1/(1 − c). Tax multiplier = −c/(1 − c). With c = 0.8 they are 5 and −4. The transfer multiplier is +c/(1 − c).
• Balanced budget multiplier = 1 for any MPC, with lump-sum taxes. Trap: it is not zero, even though the deficit does not change.
• A lump-sum tax shifts AD down in parallel. A proportional tax makes AD flatter. With c = 0.8 and t = 0.25 the multiplier is 2.5, not 5.
• A proportional income tax is an automatic stabiliser: it needs no new government decision. Keynes's case for fiscal policy comes from The General Theory (1936).
• RBI WP 07/2013: capital outlay impact multiplier 1.29 (peak 3.56) vs revenue expenditure 0.37 [2]. Trap: "Revenue expenditure has a higher multiplier than capital expenditure" is false [2][3].
• According to the IMF, multipliers are larger when leakages to saving and imports are few, monetary policy accommodates and public debt is sustainable [4].

Mains Points

• Quality of the deficit, not just its size:
• Capital outlay has an impact multiplier of 1.29 (peak 3.56), against 0.37 for revenue spending [2].
• So moving spending from revenue to capital can lift growth without raising the fiscal deficit.

• This supports effective-capex targets, capex-linked loans to States, and reading the FRBM targets together with revenue deficit limits.

• Rules with flexibility:

• Stimulus works best in a slump, with an accommodative RBI and low import leakage [4].
• Counter-cyclical spending, as in the 2020-21 COVID response, needs credible consolidation in good years.
• This is the case for a rules-based FRBM framework with escape clauses.

• The balanced budget multiplier also gives a debt-neutral way to raise output, which matters for a high-debt country like India.

• Centre–State angle (GS-II + GS-III):

• State spending multipliers are higher than the Centre's [2].
• So stronger State capex capacity, through Finance Commission devolution and well-designed Centre-to-State transfers, links federalism to growth.

Related concepts

• Lump-sum tax
• Government expenditure multiplier
• Tax multiplier
• Transfer multiplier
• Balanced budget multiplier
• Fiscal multiplier

Read more

• Fiscal policy and the multipliers