What is Fiscal Policy, Multiplier, FRBM & Exercises in Class 12 Economics NCERT?

Interactive NCERT Class 12 Economics lesson on Fiscal Policy, Multiplier, FRBM & Exercises

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Fiscal Policy, Multiplier, FRBM & Exercises

🎓 Class 12 Economics CBSE Theory Chapter 5 — Government Budget and the Economy ⏱ ~28 min

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Class 12 · Introductory Macroeconomics · Chapter 5

Fiscal Policy, the Multiplier & Budget Exercises

In Part 1 we mapped the receipts side of the budget; Part 2 charted the expenditure side and the three deficits. We are now ready to ask the central macroeconomic question: by how much does national income change when the government changes its spending or taxes? This is the territory of fiscal policy and the famous Keynesian multipliers — the government-expenditure multiplier 1/(1−c), the tax multiplier −c/(1−c) and the balanced-budget multiplier (= 1). After the theory we wrap up the chapter with the FRBM Act 2003, recent budget innovations, all NCERT exercises with model answers, a chapter summary and a key-terms grid.

5.13 Fiscal Policy — A Keynesian Idea

One of John Maynard Keynes's central ideas in The General Theory of Employment, Interest and Money (1936) is that the government can — and should — use its budget to stabilise the level of output and employment. By varying its expenditure and taxes, the government attempts to lift output and income during recessions and to dampen inflation during booms. In this process the budget is rarely balanced: a deliberately deficit budget injects demand; a deliberately surplus budget drains it. This deliberate use of the budget for stabilisation is called fiscal policy^?.

📜 The Big Idea

Through changes in its expenditure and taxes, the government seeks to stabilise the ups and downs in the economy. Fiscal policy creates a surplus or a deficit budget rather than a balanced one — that is the whole point.

— After J. M. Keynes, The General Theory, 1936

The government affects the equilibrium level of income in two specific ways: (i) Government purchases of goods and services (G) directly increase aggregate demand; (ii) Taxes (T) and Transfers (TR̄) change the relationship between income (Y) and disposable income (Y_D) — the income available for consumption and saving with households.

5.14 The Income-Determination Model with Government

We assume lump-sum taxes T (independent of income) and a constant transfer payment TR̄. The consumption function becomes:

📐 Consumption with Government

C = C̄ + c · Y_D = C̄ + c · (Y − T + TR̄) — equation (5.1)
AD = C̄ + c (Y − T + TR̄) + I + G — equation (5.2)
Equilibrium condition Y = AD gives:
Y* = [1 / (1 − c)] · (C̄ − cT + c · TR̄ + I + G) — equation (5.4)
Here c is the marginal propensity to consume (MPC), and (1 − c) is the marginal propensity to save (MPS).

5.15 The Government Expenditure Multiplier

What happens when the government raises its spending by ∆G, holding everything else constant? Aggregate demand shifts up by ∆G immediately, output expands, the rise in income lifts consumption (by c · ∆Y), which lifts demand again, and so on. The infinite chain settles at:

📐 Government Expenditure Multiplier

∆Y = [1 / (1 − c)] · ∆G — equation (5.5)
∆Y / ∆G = 1 / (1 − c) = 1 / MPS — equation (5.6)
This is the government expenditure multiplier — the same investment multiplier from Chapter 4, applied now to G instead of I.

For example, if MPC = 0.8 (so MPS = 0.2), then ∆Y/∆G = 1/0.2 = 5. A ₹100 crore rise in government spending lifts equilibrium income by ₹500 crore. This big amplification effect is what makes fiscal stimulus so attractive in a recession.

The Multiplier Cascade — How ₹100 cr of G Becomes ₹500 cr of Y (MPC = 0.8)

Bloom: L3 Apply

5.16 The Tax Multiplier

What if instead of raising spending the government cuts (or raises) lump-sum taxes? Lower T raises disposable income at every level of Y by the same amount, which raises consumption by c × ∆T, which then triggers the same multiplier chain as before. But notice: the first-round impact is only c·∆T, not the full ∆T — taxes hit consumption before they hit total spending. So the tax multiplier is smaller in absolute value than the spending multiplier.

📐 Tax Multiplier

∆Y = [−c / (1 − c)] · ∆T — equation (5.7)
∆Y / ∆T = −c / (1 − c) — equation (5.8)
The minus sign means a tax cut raises income (and a tax rise lowers it). The absolute value is always one less than the government expenditure multiplier:
|tax multiplier| = c / (1 − c) = [1 / (1 − c)] − 1

NCERT Example 5.1: with c = 0.8, the spending multiplier is 1/(1 − 0.8) = 5 and the tax multiplier is −0.8/(1 − 0.8) = −4. A ₹100 cr cut in lump-sum taxes raises equilibrium income by ₹400 cr — less than the ₹500 cr produced by an equivalent ₹100 cr rise in G.

5.17 The Balanced-Budget Multiplier — Equal to 1

What if the government raises spending AND raises lump-sum taxes by exactly the same amount, keeping the budget balanced? Naïve intuition says the two effects must cancel out. Naïve intuition is wrong. The expansionary effect of higher G is bigger than the contractionary effect of higher T, by exactly the difference of one. So output rises by the amount of the spending increase.

📐 Balanced-Budget Multiplier

Balanced-budget multiplier  =  ∆Y / ∆G  +  ∆Y / ∆T  =  1/(1−c)  +  (−c)/(1−c)  =  (1 − c)/(1 − c)  =  1

— equation (5.9)
In words: a ₹100 cr increase in G financed by a ₹100 cr increase in T raises equilibrium income by exactly ₹100 cr — neither more nor less. (Spending effect ₹500 cr; tax effect −₹400 cr; net ₹100 cr.)

💡 Why the Balanced-Budget Multiplier Equals 1

Intuitively: when the government takes ₹1 from a household via taxes, the household reduces consumption only by c × ₹1 (the rest c̄omes from saving less). When the government spends ₹1, all of it enters demand directly. So a balanced rise of ₹1 in (G, T) injects ₹1 of new demand on net at every round. The multiplier process turns this into a final rise of ₹1 in Y — the multiplier on a balanced-budget change is unity, regardless of c.

5.18 Proportional Taxes — An Automatic Stabiliser

Real-world tax systems are not lump-sum; income tax in particular is proportional (T = tY where t is the tax rate). NCERT works this case out (Section 5.6). The consumption function becomes C = C̄ + c(1 − t)Y + c·TR̄, the slope of the AD line falls from c to c(1 − t), and the multiplier shrinks to 1/[1 − c(1 − t)]. With c = 0.8 and t = 0.25, the multiplier is 1/(1 − 0.6) = 2.5 — much smaller than the lump-sum multiplier of 5.

💡 Automatic Stabiliser

Because part of every rupee of new income is automatically siphoned off as tax, disposable income — and hence consumer spending — is less sensitive to fluctuations in GDP. When GDP rises in a boom, taxes rise proportionally and put a brake on consumption. When GDP falls in a recession, taxes fall and cushion the drop in consumption. This is the famous automatic stabiliser property — a "shock absorber" built into the fiscal system that operates without any new policy decision.

5.19 The Role of Government — Why the State Must Intervene

Stepping back from the algebra, the broader question of why we need government in a market economy has a series of well-rehearsed answers, each rooted in the failure of pure markets:

🛡

Public Goods

Defence, basic research, lighthouses — non-rivalrous, non-excludable goods that no private firm can supply profitably (allocation function).

💨

Externalities

Pollution, congestion, vaccination spillovers — situations in which private and social costs (or benefits) diverge. Pigouvian taxes and public investment correct the gap.

⚖️

Redistribution

Markets reward productivity, but the resulting income distribution may be too unequal to be politically or socially sustainable. Progressive taxes + transfers move toward fairness.

🚀

Growth Promotion

Long-lived infrastructure (highways, ports, power, education, R&D) raises future productivity but takes decades to repay; few private firms can finance it. Capital expenditure on infrastructure drives growth.

💡 The Term "Market Failure"

Public goods, externalities, information asymmetries and unequal initial endowments are the four classic market failures^? recognised by public-finance theory. Each one provides a textbook justification for government intervention through the budget.

5.20 The FRBM Act, 2003 — Fiscal Discipline by Law

Recognising the political temptation to overspend, India enacted the Fiscal Responsibility and Budget Management Act in August 2003, with rules notified from July 2004. The Act binds the central government — present and future — to follow a prudent fiscal path through an institutional framework rather than annual will-power.

The FRBM Act 2003 — Original Targets & Reality

Bloom: L3 Apply

5.20.1 Main Features of FRBM Act 2003

Reduce fiscal deficit to ≤ 3 % of GDP and eliminate the revenue deficit by 31 March 2009.
Reduction of fiscal deficit by 0.3 % of GDP and revenue deficit by 0.5 % each year.
Targets may be exceeded only on grounds of national security, natural calamity or other exceptional grounds specified by the central government.
Central government shall not borrow from the RBI except for short-term cash management.
RBI must not subscribe to primary issues of central government securities from 2006-07.
Three policy statements to be laid before Parliament alongside the Budget — the Medium-term Fiscal Policy Statement, the Fiscal Policy Strategy Statement, and the Macroeconomic Framework Statement.
Quarterly review of trends in receipts and expenditure to be placed before Parliament.
26 states have enacted parallel fiscal-responsibility legislations, broadening the rule-based reform base.

📚 The FRBM Review Committee & COVID Relaxation

In 2017 a committee under N.K. Singh recommended targeting debt-to-GDP rather than annual fiscal deficits — a more growth-friendly framework. The 2020 COVID-19 pandemic forced India to invoke the FRBM escape clause and let fiscal deficit climb to 9.2 % of GDP in 2020-21. The Union Budget 2021 set out a fresh glide-path: 6.4 % in 2022-23, 5.9 % in 2023-24, 5.6 % in 2024-25 P.A., aiming for 4.5 % by 2025-26.

5.21 Recent Budget Innovations — DBT, Atmanirbhar Bharat & PLI

📲

Direct Benefit Transfer (DBT)

Subsidies and cash benefits routed directly to beneficiaries' Aadhaar-seeded bank accounts via the JAM trinity (Jan Dhan + Aadhaar + Mobile). Reduces leakage; one Planning Commission study found that ₹3.65 was being spent to deliver ₹1 worth of food subsidy under the old PDS model — DBT plugs that leak.

🇮🇳

Atmanirbhar Bharat

A ₹20-lakh-crore stimulus package announced in May 2020 (about 10 % of GDP) to revive demand, support MSMEs, and build domestic supply-chain resilience after the COVID lockdown.

🏭

PLI Scheme

Production-Linked Incentive — capital-side budgetary support that pays manufacturers a percentage of their incremental sales for setting up production in 14 strategic sectors (electronics, pharma, EVs, semiconductors, telecom).

🛣

Capex Push

Recent budgets have raised capital expenditure aggressively (≥ ₹10 lakh crore by 2024-25) to crowd-in private investment and lift India's growth ceiling, while compressing recurrent revenue expenditure as a share of total spending.

5.22 Conclusion

The government budget is far more than an accounting document. It is the principal instrument through which the state performs its three classical economic functions — allocation of resources to public goods, redistribution of incomes through taxes and transfers, and stabilisation of the economy through counter-cyclical fiscal policy. Each rupee on the receipts side and the expenditure side has to be classified — revenue or capital, debt-creating or non-debt-creating — and the gap between the two yields the three diagnostic deficits: revenue, fiscal and primary. The Keynesian multipliers (1/(1−c) for spending, −c/(1−c) for taxes, exactly 1 for a balanced-budget change) tell us how powerfully a deliberate change in the budget can move output. The FRBM Act 2003 holds Indian fiscal policy to account, while modern instruments such as DBT, Atmanirbhar Bharat and the PLI scheme apply that framework to today's challenges of leakage, growth and self-reliance. A well-designed budget — one that runs deficits when needed and compresses them when growth picks up, that invests in productive capital rather than recurring consumption — is the single most powerful peacetime tool the government has to shape the economic future of India.

THINK ABOUT IT — The Asymmetric Multipliers

Bloom: L5 Evaluate

Consider an economy where MPC = 0.75. Compute the (i) government expenditure multiplier, (ii) tax multiplier, (iii) balanced-budget multiplier. Then justify why NCERT states that "the tax multiplier is always one less in absolute value than the government expenditure multiplier" — argue both algebraically and economically.

✅ Worked Solution & Argument

(i) Spending multiplier = 1/(1 − 0.75) = 4. (ii) Tax multiplier = −0.75/(1 − 0.75) = −3. (iii) Balanced-budget multiplier = 4 + (−3) = 1.
Algebraic argument: 1/(1−c) − c/(1−c) = (1−c)/(1−c) = 1 always — the difference between the absolute values is always exactly 1, regardless of c.
Economic argument: When the government spends ₹1, the entire rupee enters demand directly — that is the "first round" injection of ₹1. When the government cuts taxes by ₹1, the household receives ₹1 of new disposable income but only spends c of it; the remaining (1 − c) is saved and never enters demand. So the tax change starts the multiplier with a smaller first-round injection of c rather than 1, and the final effect is correspondingly smaller by exactly one unit. This is the deep reason why tax-financed stimulus is less powerful than spending-financed stimulus, and why a balanced-budget expansion still produces a positive output rise (= 1).

5.23 NCERT Exercises — Complete Solutions

Below are model answers to all 15 NCERT end-of-chapter exercises (textual + numerical). Work out each one before clicking the answer.

Exercise 1. Explain why public goods must be provided by the government.

Public goods (defence, streetlights, public parks, basic R&D) have two defining features: non-rivalrous consumption — one person's use does not reduce the amount available to others; and non-excludability — once provided, no one can be prevented from consuming. These features create the free-rider problem: rational consumers would not voluntarily pay for what they can enjoy free. Private firms, unable to collect fees, would never produce public goods at the socially desirable level. The link between producer and consumer (normally cemented by the payment process) breaks down, and so the government must step in and finance such goods through the budget. This is the allocation function of the government budget.

Exercise 2. Distinguish between revenue expenditure and capital expenditure.

Revenue Expenditure — recurring spending that neither creates a physical/financial asset nor reduces a financial liability. Examples: salaries, pensions, interest payments, subsidies, defence revenue, grants to states. It is meant for the day-to-day running of the government. Capital Expenditure — non-recurring spending that creates physical or financial assets, or reduces financial liabilities. Examples: building roads, dams, schools; investing in shares of PSUs; loans to state governments; repayment of principal on G-Secs. The simple test: ask whether an asset has been created (or a liability reduced). If yes — capital. If no — revenue.

Exercise 3. "The fiscal deficit gives the borrowing requirement of the government." Elucidate.

Fiscal Deficit = Total Expenditure − (Revenue Receipts + Non-debt-creating Capital Receipts). The receipts subtracted on the right are exactly those that do not create future debt obligations. So whatever portion of total expenditure remains uncovered must, by the budget identity, be financed through fresh borrowing — from the public (market loans), from the RBI, or from abroad. From the financing side: Fiscal Deficit = Net borrowing at home + Borrowing from RBI + Borrowing from abroad. Hence the fiscal deficit equals the government's total borrowing requirement of the year. In NCERT Table 5.1 (2024-25 P.A.), Fiscal Deficit = 5.6 % of GDP, and the borrowings figure is also 5.6 % — they must match by definition.

Exercise 4. Give the relationship between the revenue deficit and the fiscal deficit.

Fiscal Deficit = Revenue Deficit + (Capital Expenditure − Non-debt-creating Capital Receipts). Hence the revenue deficit is one component of the fiscal deficit. Numerically, in 2024-25 (P.A.): Fiscal Deficit (5.6 %) = Revenue Deficit (2.6 %) + [Capital Expenditure (3.2 %) − Non-debt capital receipts (0.2 %)] = 2.6 + 3.0 = 5.6 % of GDP. The quality of the fiscal deficit is judged by the share of revenue deficit in it: a larger share means more borrowing for consumption and less for investment — a worrying sign. A smaller revenue-deficit share means the deficit is funding productive capital expenditure, which is much more sustainable.

Exercise 5. Investment = 200, Government purchases = 150, Net taxes = 100, C = 100 + 0.75Y. (a) Equilibrium income? (b) Government expenditure multiplier and tax multiplier? (c) Change in equilibrium income if G rises by 200?

(a) AD = C + I + G, with C = 100 + 0.75(Y − T) where T (net taxes) = 100. So AD = 100 + 0.75(Y − 100) + 200 + 150 = 100 − 75 + 0.75Y + 350 = 375 + 0.75Y. Equilibrium: Y = AD = 375 + 0.75Y ⇒ 0.25Y = 375 ⇒ Y* = 1500.
(b) Government expenditure multiplier = 1/(1 − c) = 1/(1 − 0.75) = 1/0.25 = 4. Tax multiplier = −c/(1 − c) = −0.75/0.25 = −3.
(c) ∆Y = 4 × ∆G = 4 × 200 = ₹800. New equilibrium income = 1500 + 800 = ₹2300.

Exercise 6. C = 20 + 0.80Y, I = 30, G = 50, TR̄ = 100. (a) Equilibrium income and autonomous expenditure multiplier? (b) ∆Y if G rises by 30? (c) If a lump-sum tax of 30 is imposed to pay for the G rise, the change in equilibrium income?

(a) Initially T = 0, transfers TR̄ = 100. C = 20 + 0.80(Y + 100) = 20 + 80 + 0.80Y = 100 + 0.80Y. AD = C + I + G = 100 + 0.80Y + 30 + 50 = 180 + 0.80Y. Equilibrium: Y = 180 + 0.80Y ⇒ 0.20Y = 180 ⇒ Y* = 900. Autonomous-expenditure multiplier = 1/(1 − 0.80) = 5.
(b) ∆Y from ∆G = 30: ∆Y = 5 × 30 = ₹150. New Y = 900 + 150 = ₹1050.
(c) A lump-sum tax of 30 added at the same time. Tax multiplier = −c/(1 − c) = −0.80/0.20 = −4. ∆Y from ∆T = 30: ∆Y = −4 × 30 = −₹120. Net effect = +150 + (−120) = +₹30. (Verifies the balanced-budget multiplier = 1: ∆G = 30 financed by ∆T = 30 raises Y by exactly 30.)

Exercise 7. In Q6, calculate the effect on output of (i) a 10 % increase in transfers, and (ii) a 10 % increase in lump-sum taxes. Compare.

Initial transfers TR̄ = 100; 10 % rise → ∆TR̄ = 10. Transfer multiplier = c/(1 − c) = 0.80/0.20 = 4. So ∆Y = 4 × 10 = +₹40.
Initial taxes T = 0; the question presumably means a "10 % increase" in some baseline tax level. Assuming initial T = 100 (matching transfers symbolically, as in the standard NCERT setup), a 10 % rise → ∆T = 10. Tax multiplier = −c/(1 − c) = −4. So ∆Y = −4 × 10 = −₹40.
Comparison: equal absolute changes in TR̄ and T have equal-and-opposite effects on equilibrium income. The transfer multiplier (+c/(1−c)) is the mirror image of the tax multiplier (−c/(1−c)) — both work through disposable income, with the same absolute strength but opposite signs. Both are smaller in absolute value than the government expenditure multiplier (5), consistent with the result that tax/transfer changes affect spending only via the consumption channel.

Exercise 8. C = 70 + 0.70Y_D, I = 90, G = 100, T = 0.10Y. (a) Equilibrium income? (b) Tax revenues at equilibrium income? Does the government have a balanced budget?

(a) Y_D = Y − T = Y − 0.10Y = 0.90Y. C = 70 + 0.70 × 0.90Y = 70 + 0.63Y. AD = 70 + 0.63Y + 90 + 100 = 260 + 0.63Y. Equilibrium: Y = 260 + 0.63Y ⇒ 0.37Y = 260 ⇒ Y* ≈ 702.7 (precisely 260/0.37).
(b) Tax revenue = 0.10 × Y* ≈ 0.10 × 702.7 ≈ 70.3. Government expenditure G = 100. Since tax revenue (70.3) < expenditure (100), the government has a budget deficit of approximately 29.7. The budget is not balanced.

Exercise 9. MPC = 0.75 with a 20 % proportional income tax. Find ∆Y for: (a) ∆G = 20; (b) ∆TR̄ = −20.

Effective slope of AD with proportional tax = c(1 − t) = 0.75 × (1 − 0.20) = 0.75 × 0.80 = 0.60. Multiplier with proportional tax = 1/[1 − c(1 − t)] = 1/(1 − 0.60) = 1/0.40 = 2.5.
(a) ∆Y from ∆G = 20: ∆Y = 2.5 × 20 = +₹50.
(b) Transfer multiplier with proportional tax = c/[1 − c(1 − t)] = 0.75/0.40 = 1.875. ∆Y from ∆TR̄ = −20: ∆Y = 1.875 × (−20) = −₹37.5.
Notice both multipliers are smaller than they would be under lump-sum taxes (5 and 4 respectively). The proportional tax acts as an automatic stabiliser, dampening the response of output to fiscal changes.

Exercise 10. Explain why the tax multiplier is smaller in absolute value than the government expenditure multiplier.

An increase in government spending by ₹1 directly raises aggregate demand by ₹1 in the very first round, before any consumer or producer responds. A tax cut of ₹1 raises households' disposable income by ₹1, but they spend only c × ₹1 of it (the remaining (1 − c) is saved). So the first-round injection is c rather than 1. After all the multiplier rounds: ∆Y/∆G = 1/(1−c) and ∆Y/∆T = −c/(1−c). The absolute values differ by exactly 1: |1/(1−c)| − |c/(1−c)| = (1 − c)/(1 − c) = 1. In short: spending injects "directly", taxes injects "indirectly through consumption" — and the leak that escapes via saving makes the tax multiplier smaller by exactly one unit.

Exercise 11. Explain the relation between government deficit and government debt.

A deficit is a flow concept (per period), while debt is a stock concept (accumulated over time). When the government runs a fiscal deficit in a year, it must borrow to plug the gap; that fresh borrowing adds to the existing stock of debt. Year after year of deficits ⇒ a steadily rising stock of debt. Mathematically: Debt(t) = Debt(t−1) + Fiscal Deficit(t) (ignoring debt repayment for simplicity). And the larger the debt, the larger the interest bill, which itself becomes part of next year's revenue expenditure — feeding back into a still larger fiscal deficit. This is the debt trap: deficits ⇒ rising debt ⇒ rising interest ⇒ rising deficits. Breaking the trap requires either raising primary surpluses (deficit minus interest) or growing the economy faster than the debt accumulates.

Exercise 12. Does public debt impose a burden? Explain.

The answer has nuance — it depends on what the borrowed money was spent on and who the lenders are. Burden arguments: (i) Borrowing today shifts taxes onto future generations, who must pay back the bonds with interest — reducing their disposable income and consumption (inter-generational burden). (ii) Government borrowing absorbs private savings, leaving less for capital formation by firms — known as crowding out. (iii) Debt owed to foreigners imposes a clear burden because we must send goods and services abroad to service the interest, reducing domestic consumption. Counter-arguments: (i) "We owe it to ourselves" — domestic debt is just a transfer of resources between Indian citizens; purchasing power stays within the nation. (ii) Ricardian equivalence — if forward-looking households expect the future tax rise, they save more today, exactly offsetting the dissaving by the government — net effect zero. (iii) If the borrowed money funds productive infrastructure whose return exceeds the interest rate, future generations are better off, not worse. Bottom line: "Public debt is burdensome only if it reduces future growth in output." If borrowed funds finance growth-enhancing capital formation, debt may be a benefit; if they merely fund current consumption, debt is a true burden.

Exercise 13. Are fiscal deficits inflationary?

It depends on the state of the economy. If the economy is at full employment with no spare capacity, a fiscal deficit raises aggregate demand without any matching rise in output, so prices rise — inflation. If the deficit is monetised (financed by borrowing from the RBI), money supply expands directly, fuelling inflation further. However, if the economy has unutilised resources (idle labour, idle factories, low capacity utilisation), a fiscal deficit raises aggregate demand and producers respond by raising output rather than prices — output goes up, inflation stays muted. NCERT puts it precisely: "if there are unutilised resources, output is held back by lack of demand. A high fiscal deficit is accompanied by higher demand and greater output and, therefore, need not be inflationary." India's COVID-era fiscal deficit of 9.2 % in 2020-21 illustrates this — output recovered without runaway inflation in core goods because spare capacity was abundant.

Exercise 14. Discuss the issue of deficit reduction.

Government deficit can be reduced by either (i) raising tax revenue or (ii) cutting expenditure. Raising taxes: India has emphasised greater reliance on direct taxes because indirect taxes are regressive in nature — they impact all income groups equally, hurting the poor proportionally more. The disinvestment of PSU shares is also used to raise non-debt receipts. Cutting expenditure: The major thrust has been on reducing expenditure efficiently — through better planning, leakage-plugging via Direct Benefit Transfer (one Planning Commission study found the government spent ₹3.65 to deliver ₹1 of food subsidy), and structural reforms. Cutting back welfare expenditure on agriculture, education, health and poverty alleviation, however, would adversely affect the economy. Self-imposed constraints like the FRBM Act 2003 force discipline, but they must be applied with care — the COVID-era escape clause shows that sometimes deficit expansion is the right response. Larger deficits do not always signal more expansionary policy: in a recession, tax revenues fall automatically as firms and households earn less, so the deficit widens even without any new policy decision.

Exercise 15. What do you understand by GST? How good is the system of GST compared to the old tax system? State its categories.

Definition: GST (Goods and Services Tax) is a single comprehensive indirect tax on the supply of goods and services, operational from 1 July 2017. It is a destination-based consumption tax with the facility of Input Tax Credit, applied uniformly across the country with one rate per type of good or service.
Comparison with the old tax regime:

Pre-GST, taxes were levied on the total value of goods at each stage with little Input Tax Credit, leading to a cascading "tax-on-tax". GST is effectively a tax on value addition only at each stage, eliminating cascading.
GST replaced 17 different central and state taxes — Central Excise Duty, Service Tax, Central Sales Tax, KKC, SBC (Centre); VAT/Sales Tax, Entry Tax, Luxury Tax, Octroi, Entertainment Tax, Lottery taxes, State cesses (States) — with one unified tax.
It has created a common national market, removing inter-state tax barriers and simplifying compliance via the online portal www.gst.gov.in.
It has expanded the tax base, increased transparency, reduced human interface between taxpayer and government, and is expected to lift GDP growth by ~2 %.

Categories (rates): GST has six standard rates — 0 %, 3 %, 5 %, 12 %, 18 %, 28 % — applied across the country. Five petroleum products and alcohol for human consumption stay outside GST for the time being; tobacco attracts both GST and Central Excise Duty.
Constitutional basis: The 101st Constitution Amendment Act inserted Article 246A, cross-empowering Parliament and State Legislatures to levy GST. CGST Act, SGST Acts, UTGST Act and IGST Act operationalise the levy across the Centre, States and Union Territories.

5.24 Chapter Summary

1. Three Functions — The budget performs three economic functions: allocation (provide public goods), distribution (redistribute income through taxes & transfers) and stabilisation (counter-cyclical fiscal policy).

2. Two Halves — Receipts and Expenditure each split into Revenue (recurring, no asset/liability effect) and Capital (creates asset OR reduces liability). Four cells in total.

3. Public Goods — Non-rivalrous + non-excludable; markets cannot supply them because of the free-rider problem; government must finance them through the budget.

4. Three Deficits — Revenue Deficit = RE − RR; Fiscal Deficit = Total Expenditure − Non-debt Receipts (= total borrowing); Primary Deficit = Fiscal Deficit − Interest Payments.

5. Multipliers — Government-expenditure multiplier = 1/(1−c); tax multiplier = −c/(1−c); balanced-budget multiplier = 1. Tax multiplier always one less in absolute value than the spending multiplier.

6. Quality of Deficit — A higher revenue deficit as a share of fiscal deficit signals deteriorating quality — more borrowing for consumption, less for investment.

7. Automatic Stabilisers — Proportional taxes reduce the multiplier from 1/(1−c) to 1/[1−c(1−t)], dampening the response of disposable income to GDP fluctuations.

8. Public Debt — Burdensome only if it reduces future growth in output; productive capital expenditure financed by debt may benefit future generations.

9. FRBM Act 2003 — Targets fiscal deficit ≤ 3 % of GDP and zero revenue deficit; relaxed during COVID; current glide-path aims for 4.5 % by 2025-26.

10. GST 2017 — Single comprehensive indirect tax, six standard rates, destination-based consumption tax with Input Tax Credit; replaced 17 central + state taxes.

5.25 Key Terms

Government Budget — Annual financial statement of estimated receipts and expenditures (Article 112).

Mixed Economy — Both private and government sectors play a substantial economic role.

Public Good — Non-rivalrous and non-excludable good; government must provide.

Allocation Function — Provision of public goods through the budget.

Distribution Function — Redistribution of income via progressive taxes and transfers.

Stabilisation Function — Counter-cyclical use of the budget to smooth output and prices.

Revenue Receipt — Recurring receipt; no liability created, no asset reduced.

Capital Receipt — Creates a liability (borrowings) or reduces an asset (recovery, disinvestment).

Direct Tax — Burden cannot be shifted (income tax, corporation tax).

Indirect Tax — Burden can be shifted to the buyer (GST, customs, excise).

GST — Goods & Services Tax, single indirect tax since 1 July 2017.

Disinvestment — Sale of government's PSU shares; non-debt-creating capital receipt.

Revenue Expenditure — Recurring outflow; no asset created (salaries, interest, subsidies).

Capital Expenditure — Creates assets or reduces liabilities (infrastructure, loans, principal repayment).

Revenue Deficit — RE − RR; signals dis-saving by the government.

Fiscal Deficit — Total expenditure minus non-debt-creating receipts; equals borrowings.

Primary Deficit — Fiscal Deficit − Interest Payments; measures present fiscal imbalance.

Government Expenditure Multiplier — ∆Y/∆G = 1/(1 − c) = 1/MPS.

Tax Multiplier — ∆Y/∆T = −c/(1 − c); negative and smaller in absolute value.

Balanced-Budget Multiplier — Equals exactly 1 regardless of c.

Automatic Stabiliser — Proportional taxes & transfers that shrink the multiplier and dampen fluctuations.

Discretionary Fiscal Policy — Deliberate change in G or T to stabilise the economy.

Ricardian Equivalence — Households see through deficit financing and offset it with extra savings.

FRBM Act 2003 — Fiscal deficit ≤ 3 % of GDP, revenue deficit = 0, three policy statements, no fresh RBI primary borrowing.

Market Failure — Public goods, externalities, information gaps, inequality — justify government intervention.

Crowding Out — Government borrowing reduces savings available to private investors, raising interest rates.

DBT — Direct Benefit Transfer of subsidies via Aadhaar-seeded bank accounts; reduces leakage.

PLI Scheme — Production-Linked Incentive — payment to manufacturers based on incremental sales.

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Competency-Based Questions — Part 3

Case Study: The economy of Vidisha is described by C = 50 + 0.80 Y_D, I = 100, G = 200, T = 150 (lump-sum), TR̄ = 50. Currently the economy is in a recession with substantial unutilised capacity. The government is considering three policy options of equal "size" (₹100 each): (i) raise G by ₹100; (ii) cut T by ₹100; (iii) raise G by ₹100 financed by raising T by ₹100.

Q1. The government expenditure multiplier and tax multiplier for Vidisha are respectively:

L3 Apply

(A) 5 ; −5
(B) 5 ; −4
(C) 4 ; −5
(D) 1.25 ; −0.8

Answer: (B) — Government expenditure multiplier = 1/(1 − c) = 1/(1 − 0.80) = 1/0.20 = 5. Tax multiplier = −c/(1 − c) = −0.80/0.20 = −4. (The tax multiplier is always one less in absolute value than the expenditure multiplier.)

Q2. Of the three policy options, which produces the LARGEST rise in equilibrium income?

L4 Analyse

(A) (i) Raise G by ₹100 → ∆Y = ₹500
(B) (ii) Cut T by ₹100 → ∆Y = ₹400
(C) (iii) Balanced-budget rise of ₹100 → ∆Y = ₹100
(D) (i) and (ii) yield the same ∆Y

Answer: (A) — (i) ∆Y = 5 × 100 = ₹500 (largest). (ii) ∆Y = (−4) × (−100) = ₹400. (iii) ∆Y = 1 × 100 = ₹100. The pure spending hike has the strongest expansionary effect because the entire rupee enters demand directly. The tax cut leaks (1−c) into saving, reducing the impact. The balanced-budget option is least expansionary but most fiscally responsible.

Q3. Suppose Vidisha switches to a proportional income tax T = 0.25Y. The new government expenditure multiplier becomes approximately:

L4 Analyse

(A) 5.00
(B) 2.50
(C) 4.00
(D) 1.25

Answer: (B) — With proportional tax t = 0.25 and c = 0.80: multiplier = 1/[1 − c(1 − t)] = 1/[1 − 0.80 × 0.75] = 1/[1 − 0.60] = 1/0.40 = 2.5. The multiplier shrinks from 5 to 2.5 because part of every rupee of new income now leaks into taxes — the proportional tax is acting as an automatic stabiliser.

HOT Q. Vidisha's policymakers worry about inflation, even though there is unutilised capacity. They want a fiscal package that maximally stimulates output without increasing the fiscal deficit. Design such a package using the multipliers, justify your design with reference to the balanced-budget multiplier, and explain why this approach honours both the FRBM Act 2003 and the stabilisation function of the budget.

L6 Create

Model Answer: The right tool is a balanced-budget expansion: raise G by some amount, say ∆G, and finance it entirely by raising T by the same amount, ∆T = ∆G. With c = 0.80, the spending multiplier is 5 and the tax multiplier is −4, so the balanced-budget multiplier is 5 + (−4) = 1. A simultaneous ∆G = ∆T = ₹500 cr lifts equilibrium income by ₹500 cr — a real expansion — while the fiscal deficit stays unchanged because additional spending is fully funded by additional revenue. Why this honours the FRBM Act 2003: the Act caps the fiscal deficit at 3 % of GDP; a balanced-budget expansion does not breach the cap. Why it honours the stabilisation function: the policy raises aggregate demand and output during the recession, exactly the counter-cyclical role envisaged by Keynes. Why it tames inflation risk: because output rises by exactly the spending injection (no multiplier amplification beyond ×1), the demand impulse is moderate; with idle capacity, producers absorb it through higher output rather than higher prices. Design refinement: direct the additional spending to capital expenditure (infrastructure) rather than recurring revenue items, so that the productive capital stock grows — converting today's stimulus into tomorrow's growth.

⚖️ Assertion–Reason Questions — Part 3

Options:
(A) Both A and R are true, and R is the correct explanation of A.
(B) Both A and R are true, but R is NOT the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.

Assertion (A): A balanced-budget expansion (equal increases in G and T) raises equilibrium income.

Reason (R): The balanced-budget multiplier equals exactly 1, regardless of the marginal propensity to consume.

Answer: (A) — Both true, and R is the correct explanation of A. Algebraically 1/(1−c) − c/(1−c) = (1−c)/(1−c) = 1, so equal ∆G = ∆T raises Y by exactly ∆G. This is one of the most counter-intuitive but powerful results of Keynesian fiscal theory.

Assertion (A): A proportional income tax acts as an automatic stabiliser.

Reason (R): A proportional tax raises the marginal propensity to consume out of income from c to c(1 − t).

Answer: (C) — Assertion is true; proportional taxes do dampen fluctuations. The reason is false — a proportional tax lowers the effective MPC from c to c(1 − t), not raises it. By lowering the slope of the AD line, it shrinks the multiplier from 1/(1−c) to 1/[1−c(1−t)], which is what makes the system more stable.

Assertion (A): The FRBM Act 2003 targets a zero revenue deficit.

Reason (R): A zero revenue deficit ensures that the government's borrowings finance only capital expenditure that creates productive assets, not recurring consumption.

Answer: (A) — Both true, and R is exactly why the FRBM target is set this way. If revenue deficit is zero, the entire fiscal deficit equals capital expenditure minus non-debt-creating capital receipts — that is, all borrowings flow into productive asset creation. This protects future generations because the assets they inherit are at least as valuable as the debt they must service.

Frequently Asked Questions

What is fiscal policy in NCERT Class 12 Macroeconomics?

Fiscal policy is the use of government expenditure and taxation to influence the level of aggregate demand, output, employment and prices in the economy. It is the principal Keynesian remedy for inflationary and deflationary gaps developed in Chapter 4. NCERT Class 12 distinguishes expansionary fiscal policy (raising G or cutting T to fight a deflationary gap) from contractionary fiscal policy (cutting G or raising T to fight an inflationary gap). The Union Budget is the operational instrument of fiscal policy in India.

What is the government expenditure multiplier?

The government expenditure multiplier shows the change in equilibrium income for a one-rupee change in autonomous government spending. Its formula is k_G = 1 / (1 − b) = 1 / MPS, exactly the same as the investment multiplier. If MPC = 0.8, k_G = 5, so an extra ₹1,000 crore of government spending raises equilibrium income by ₹5,000 crore. NCERT Class 12 derives this from the same income-determination model that produced the multiplier in Chapter 4.

What is the tax multiplier formula?

The tax multiplier shows the change in equilibrium income for a one-rupee change in autonomous taxes. Its formula is k_T = −b / (1 − b). The minus sign reflects the inverse relation: higher taxes reduce disposable income and consumption, which reduces equilibrium income. With MPC = 0.8, k_T = –0.8 / 0.2 = –4, so a tax cut of ₹1,000 crore raises equilibrium income by ₹4,000 crore. The tax multiplier is always smaller in absolute value than the government expenditure multiplier.

What is the balanced-budget multiplier and why is it equal to 1?

The balanced-budget multiplier shows what happens when government spending and taxes both rise by the same amount, keeping the budget balanced. The G effect raises income by k_G · ΔG; the T effect lowers income by k_T · ΔT. Adding the two when ΔG = ΔT = Δ gives [1/(1−b) − b/(1−b)] · Δ = (1−b)/(1−b) · Δ = Δ. So an equal-sized rise in spending and taxes still raises income by exactly Δ. NCERT Class 12 calls this the balanced-budget multiplier theorem.

What are automatic stabilisers in NCERT Class 12 fiscal policy?

Automatic stabilisers are budget items that change with the business cycle without any new policy action and dampen its swings. Proportional taxes are the textbook example: when income rises during a boom, tax revenue rises automatically and brakes aggregate demand; when income falls during a slowdown, tax revenue falls and supports demand. Unemployment benefits, food subsidies and progressive income taxes also work as automatic stabilisers. NCERT Class 12 emphasises that they reduce the size of fluctuations without requiring discretionary fiscal-policy action.

What is the FRBM Act 2003 and what does it require?

The Fiscal Responsibility and Budget Management Act, 2003 is the Indian law that compels the central government to maintain fiscal discipline. It originally required the elimination of the revenue deficit and a fiscal-deficit ceiling of 3 percent of GDP. Targets have been relaxed and rephrased through escape clauses (most recently during COVID-19), but the Act still anchors India's fiscal credibility. NCERT Class 12 covers FRBM as part of fiscal policy because it constrains how aggressively the government can use deficit spending as a stabilisation tool.

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Class 12 Economics — Introductory Macroeconomics

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