CBSE Class 12 Economics Part 2 Macroeconomics Exercise Solutions

How to Use This Page

Read the relevant NCERT chapter first, then attempt each question on your own before checking the answer. Focus on understanding the reasoning and keywords — board examiners award marks for precise definitions, labelled diagrams, and correct terminology, not for copying solutions verbatim.

Key Concepts (Quick Recap)

• Circular Flow of Income — Real flow (goods/services) and money flow (payments) between households and firms in a two-sector economy
• Domestic Product — GDP at factor cost, GDP at market price, and the role of net indirect taxes (GDP_MP = GDP_FC + Net Indirect Taxes)
• National Income aggregates — GDP, GNP, NNP, NI, PI, PDI and the transitions between them
• Real vs Nominal GDP — Real GDP adjusts for price changes using a base year; Nominal GDP uses current prices
• GDP Deflator — Ratio of nominal GDP to real GDP multiplied by 100; measures overall price level
• Value Added Method — Sum of value added at each stage of production across all sectors
• Income Method — Sum of compensation of employees, operating surplus, and mixed income of self-employed
• Expenditure Method — GDP = C + I + G + (X - M)
• Money Supply Measures — M1, M2, M3, M4 with increasing order of liquidity
• Central Bank (RBI) — Issuer of currency, banker to government, banker's bank, controller of credit
• Credit Creation — Banks create money through the money multiplier: 1/LRR; total deposits = Initial deposit x (1/LRR)
• Aggregate Demand and Supply — AD = C + I + G + (X - M); AS shows output at each price level
• Investment Multiplier — k = Delta Y / Delta I = 1/(1 - MPC) = 1/MPS; relates change in investment to change in income
• Government Budget — Revenue budget + Capital budget; aims at allocation, distribution, and economic stability
• Fiscal Deficits — Revenue deficit, fiscal deficit, primary deficit and their interrelationships
• Balance of Payments — Current account (trade in goods/services, income, transfers) and capital account (FDI, external borrowings, NRI deposits)
• Exchange Rate — Fixed (pegged by central bank) vs Flexible (determined by market forces of demand and supply)

I. Choose the Best Answer (MCQs)

Q1. Gross Domestic Product (GDP) at market price equals:

• (a) GDP at factor cost minus net indirect taxes
• (b) GDP at factor cost plus net indirect taxes
• (c) GNP at factor cost plus net indirect taxes
• (d) NNP at factor cost plus depreciation

Q2. Which of the following is a stock variable?

• (a) National income
• (b) Money supply
• (c) Investment
• (d) Exports

Q3. The investment multiplier (k) is equal to:

• (a) 1 / MPC
• (b) 1 / MPS
• (c) MPS / 1
• (d) MPC / MPS

Q4. Which of the following is NOT a function of the Reserve Bank of India?

• (a) Issue of currency notes
• (b) Banker to the government
• (c) Accepting deposits from the general public
• (d) Controller of credit

Q5. Fiscal deficit minus interest payments equals:

• (a) Revenue deficit
• (b) Primary deficit
• (c) Budget deficit
• (d) Trade deficit

Q6. In the balance of payments, foreign direct investment is recorded in the:

• (a) Current account
• (b) Capital account
• (c) Official reserves account
• (d) Errors and omissions account

Q7. Net National Product at factor cost is also known as:

• (a) Gross Domestic Product
• (b) Net Domestic Product
• (c) National Income
• (d) Personal Income

Q8. If MPC = 0.8, the value of the investment multiplier is:

• (a) 4
• (b) 5
• (c) 8
• (d) 0.8

Q9. Which of the following is a direct tax?

• (a) Goods and Services Tax (GST)
• (b) Customs duty
• (c) Income tax
• (d) Excise duty

Q10. Under a flexible exchange rate system, the exchange rate is determined by:

• (a) The central bank
• (b) The government
• (c) Market forces of demand and supply
• (d) The IMF

II. Fill in the Blanks

1. GDP at market price = GDP at factor cost + Net Indirect Taxes

2. The circular flow of income has two sides: real flow and money flow

3. Depreciation is deducted from Gross Domestic Product to obtain Net Domestic Product

4. The formula for money multiplier is 1 / LRR where LRR stands for Legal Reserve Ratio

5. Net Factor Income from Abroad is added to GDP to get GNP (Gross National Product)

6. Revenue deficit = Revenue expenditure minus Revenue receipts

7. The sum of marginal propensity to consume and marginal propensity to save equals 1 (one)

8. The balance of payments has two main accounts: current account and capital account

9. Under fixed exchange rate system, the central bank buys and sells foreign currency to maintain the fixed rate

10. Personal Disposable Income = Personal Income minus Personal taxes (and compulsory payments)

III. True or False

1. National income is a stock variable.

False. National income is a flow variable because it is measured over a period of time (usually one year). Stock variables are measured at a point in time.

2. Transfer payments are included in national income.

False. Transfer payments (like pensions, scholarships, welfare payments) are not included in national income because they do not correspond to any productive activity; they are one-way payments without any return flow of goods or services.

3. GDP at factor cost includes net indirect taxes.

False. GDP at factor cost excludes net indirect taxes. GDP at market price includes net indirect taxes. GDP_FC = GDP_MP - Net Indirect Taxes.

4. The central bank acts as a lender of last resort.

True. When commercial banks cannot borrow from any other source, the central bank provides them with financial accommodation. This is the lender of last resort function of the RBI.

5. A progressive tax imposes a higher burden on the poor than the rich.

False. A progressive tax imposes a higher tax rate on higher income groups. It is regressive taxes that impose a proportionately higher burden on the poor. Progressive taxes reduce income inequality.

6. An increase in marginal propensity to consume leads to a higher multiplier.

True. Since k = 1/(1-MPC), as MPC increases, the denominator (1-MPC) decreases and the multiplier increases. For example, if MPC rises from 0.5 to 0.75, k rises from 2 to 4.

7. Balance of payments always balances in the accounting sense.

True. The balance of payments always balances in the accounting sense because it is based on double-entry bookkeeping — every transaction is recorded as both a credit and a debit. Deficits or surpluses refer to specific accounts (current or capital), not the overall BoP.

8. Intermediate goods are included in GDP calculation.

False. Intermediate goods are not included in GDP to avoid double counting. Only final goods and services are included. Value added at each stage can be used instead, which automatically excludes intermediate consumption.

IV. Match the Following

Match Q1

• (i) - 3: GDP at market price = C + I + G + (X - M) — This is the expenditure method formula.
• (ii) - 2: GDP at factor cost = GDP_MP - Net Indirect Taxes — Factor cost removes the effect of taxes and subsidies on prices.
• (iii) - 1: GNP at market price can be derived from GDP_MP + NFIA, and the income method sums compensation + operating surplus + mixed income to arrive at GDP_FC first.
• (iv) - 4: National Income = NNP_FC = GDP_MP + NFIA - Depreciation - Net Indirect Taxes

Match Q2

• (i) - 2: M1 = Currency with public + Demand deposits with banks + Other deposits with RBI — This is the narrowest measure of money supply, also called Narrow Money.
• (ii) - 4: M2 = M1 + Post office savings bank deposits — M2 includes M1 plus savings held in post office savings accounts.
• (iii) - 3: M3 = M1 + Time deposits with banks — This is Broad Money, which includes all deposits (demand + time) with banks plus currency.
• (iv) - 1: M4 = M3 + All deposits with post office (excluding National Savings Certificates) — The broadest measure of money supply.

V. Answer Briefly

Q1. Distinguish between real GDP and nominal GDP.

Real GDP is GDP measured at constant prices (base year prices). It eliminates the effect of price changes and reflects only changes in the quantity of output. Nominal GDP is GDP measured at current prices. It includes the effect of both price changes and quantity changes. Real GDP is a better indicator of economic growth because it shows actual changes in production. The relationship is: Real GDP = (Nominal GDP / GDP Deflator) x 100.

Q2. What is the GDP deflator? How is it different from the Consumer Price Index (CPI)?

The GDP deflator is the ratio of nominal GDP to real GDP, expressed as a percentage: GDP Deflator = (Nominal GDP / Real GDP) x 100. It measures the overall price level of all goods and services produced in the economy. Unlike CPI, which tracks prices of a fixed basket of consumer goods, the GDP deflator covers all goods and services in GDP and the basket changes automatically as output composition changes. CPI uses a fixed basket; GDP deflator uses a flexible basket.

Q3. Explain the circular flow of income in a two-sector economy.

In a two-sector economy (households and firms), the circular flow has two sides: the real flow where households supply factor services to firms and firms supply goods and services to households, and the money flow where firms pay factor incomes (wages, rent, interest, profit) to households and households spend on goods and services. The two flows are opposite in direction but equal in value. If households spend all their income, total income equals total expenditure equals total output.

Q4. State any three functions of the Reserve Bank of India.

The three key functions of the RBI are: 1. Issuer of currency: The RBI has the exclusive right to issue currency notes (except one-rupee notes and coins, issued by the Ministry of Finance). 2. Banker to the government: The RBI receives payments, makes payments on behalf of the government, and manages public debt. 3. Controller of credit: The RBI uses quantitative tools (bank rate, CRR, SLR, open market operations) and qualitative tools (moral suasion, credit rationing) to regulate the volume and direction of credit in the economy.

Q5. What is meant by the money multiplier? How is it related to the legal reserve ratio?

The money multiplier (or credit multiplier) is the ratio of total deposits created by banks to the initial deposit. It shows how many times the banking system can expand deposits from a given amount of base money. The formula is: Money Multiplier = 1 / LRR, where LRR is the Legal Reserve Ratio (CRR + SLR for simplicity, though the exact derivation uses only CRR). If LRR is 20%, the multiplier is 5, meaning Rs. 1,000 of initial deposits can lead to Rs. 5,000 of total deposits. The multiplier is inversely related to LRR — as LRR increases, the multiplier decreases.

Q6. What is the difference between revenue deficit and fiscal deficit?

Revenue deficit is the excess of revenue expenditure over revenue receipts: Revenue Deficit = Revenue Expenditure - Revenue Receipts. It indicates that the government's day-to-day earnings are insufficient for its day-to-day spending. Fiscal deficit is the excess of total expenditure over total receipts excluding borrowings: Fiscal Deficit = Total Expenditure - Total Receipts (excluding borrowings). It indicates the total borrowing requirement of the government. Fiscal deficit is always greater than or equal to revenue deficit.

Q7. Distinguish between current account and capital account of the balance of payments.

The current account records transactions related to goods, services, income, and current transfers — it includes exports and imports of goods (visible trade), services (invisible trade), investment income, and unilateral transfers like remittances. The capital account records transactions related to changes in financial assets and liabilities — it includes foreign direct investment, portfolio investment, external borrowings, and banking capital. The current account shows the flow of income; the capital account shows the flow of capital.

Q8. What is meant by effective demand? How is it determined?

Effective demand is the level of aggregate demand at the point where aggregate demand equals aggregate supply (AD = AS). At this point, all output produced is purchased; there is no unplanned inventory accumulation. It is determined by the intersection of the AD curve and the 45-degree line (which represents AS) in the Keynesian income determination model. The corresponding output level is the equilibrium output. If AD falls short, unsold stocks accumulate and producers cut output.

VI. Answer in Detail

Q1. Explain the three methods of calculating national income: Value Added Method, Income Method, and Expenditure Method.

### Value Added Method The value added method calculates national income by summing the value added at each stage of production across all sectors (primary, secondary, tertiary). Value added = Value of output - Value of intermediate goods. This method avoids double counting by including only the net contribution of each producing unit. Steps: 1. Estimate value of output for each producing unit (sales + change in stock). 2. Subtract intermediate consumption (cost of raw materials, fuel, electricity used). 3. Sum value added across all producing units to get GDP_FC. 4. Add NFIA and subtract depreciation and net indirect taxes to get National Income (NNP_FC). ### Income Method The income method calculates national income by summing all factor incomes earned by residents for their contribution to production. Components: 1. Compensation of employees — wages, salaries, employer's contribution to social security. 2. Operating surplus — rent, interest, profit (includes corporate profit and proprietor's income from ownership). 3. Mixed income of self-employed — income of farmers, doctors, shopkeepers who cannot separate their labour and capital income. GDP_FC = Compensation of employees + Operating surplus + Mixed income. Then add NFIA and subtract depreciation and net indirect taxes for National Income. ### Expenditure Method The expenditure method calculates national income by summing all final expenditures on goods and services produced within the domestic territory. Components: 1. C — Private final consumption expenditure 2. I — Gross domestic investment (gross fixed capital formation + change in stock) 3. G — Government final consumption expenditure 4. (X - M) — Net exports (exports minus imports) GDP_MP = C + I + G + (X - M). Then adjust for NFIA, depreciation, and net indirect taxes to reach NNP_FC. | Method | What is summed | Final formula step | |---|---|---| | Value Added | Value added by all producing units | Sum of VA = GDP_FC | | Income | Factor incomes (wages + rent + interest + profit + mixed income) | Sum = GDP_FC | | Expenditure | Final expenditures (C + I + G + NX) | Sum = GDP_MP |

Q2. Explain the process of credit creation by commercial banks. What are its limitations?

### Credit Creation Process Commercial banks create credit (deposits) that are a multiple of their cash reserves. The process works as follows: Assumptions: (i) Initial deposit of Rs. 1,000; (ii) CRR = 20%; (iii) No cash drain (all loans redeposited); (iv) No excess reserves. | Round | New Deposit (Rs.) | New Loan (Rs.) | CRR (20%) | |---|---|---|---| | 1 | 1,000 | 800 | 200 | | 2 | 800 | 640 | 160 | | 3 | 640 | 512 | 128 | | 4 | 512 | 409.60 | 102.40 | | ... | ... | ... | ... | | Total | 5,000 | 4,000 | 1,000 | Total deposits created = Initial deposit x Money Multiplier = 1,000 x (1/0.2) = Rs. 5,000. Money Multiplier = 1 / CRR = 1 / 0.20 = 5. The banking system as a whole can create deposits worth 5 times the initial deposit, but a single bank can lend only the excess reserves it holds. ### Limitations of Credit Creation 1. Higher CRR reduces multiplier — If the central bank raises CRR, banks must keep more reserves and lend less, reducing credit creation. 2. Cash drain — People do not deposit all borrowed money back; they hold some cash. This leakage reduces the multiplier. 3. Excess reserves — If banks hold reserves above the required minimum, they lend less than the maximum possible. 4. Availability of creditworthy borrowers — Banks can only lend if there are borrowers who meet creditworthiness criteria. 5. Business conditions — During recession, demand for loans falls; banks cannot force lending. 6. Central bank controls — Quantitative measures (bank rate, open market operations) and qualitative measures (moral suasion) restrict credit creation.

Q3. Explain the determination of equilibrium income using the aggregate demand and aggregate supply approach. Also explain the investment multiplier.

### Determination of Equilibrium Income (AD-AS Approach) According to Keynes, equilibrium income is determined at the level where Aggregate Demand equals Aggregate Supply (AD = AS). - Aggregate Demand (AD) is the total planned expenditure on goods and services in the economy at each level of income. In a two-sector economy: AD = C + I, where C is consumption expenditure and I is investment expenditure (assumed autonomous). - Aggregate Supply (AS) is the total output available at each level of income. In the Keynesian model, AS is represented by the 45-degree line from the origin, indicating that total output equals total income at every point. The equilibrium is at the intersection of the AD curve and the 45-degree line. At this point, planned expenditure equals planned output, and there is no unplanned inventory accumulation or depletion. If AD > AS: Producers' inventories fall below the desired level. They increase production, raising income and employment until AD = AS again. If AD < AS: Unplanned inventory accumulates. Producers cut production, reducing income and employment until AD = AS. ### Investment Multiplier The investment multiplier (k) measures the ratio of the change in total income to the initial change in investment that caused it. k = Delta Y / Delta I = 1 / (1 - MPC) = 1 / MPS Derivation: Delta Y = Delta C + Delta I (since AD = C + I). Dividing both sides by Delta Y: 1 = (Delta C / Delta Y) + (Delta I / Delta Y). Since MPC = Delta C / Delta Y, we get: 1 = MPC + (Delta I / Delta Y). Therefore, Delta I / Delta Y = 1 - MPC, and Delta Y / Delta I = 1 / (1 - MPC). Example: If MPC = 0.8, then k = 1/(1-0.8) = 5. An increase in investment of Rs. 100 crores leads to an increase in income of Rs. 500 crores. Key relationships: - Higher MPC → Higher multiplier (more of each round of income is spent again) - Higher MPS → Lower multiplier (more is saved and leaked out of the circular flow) - Multiplier works in reverse too: a fall in investment reduces income by k times the fall

Q4. Explain the components of the government budget. Distinguish between revenue and capital receipts and revenue and capital expenditure. Also explain the types of deficits.

### Components of Government Budget The government budget has two main components: the Revenue Budget and the Capital Budget. ### Revenue vs Capital Receipts | Basis | Revenue Receipts | Capital Receipts | |---|---|---| | Definition | Receipts that do not create a liability or reduce an asset | Receipts that create a liability or reduce an asset | | Examples | Tax revenue (income tax, GST, customs duty), non-tax revenue (fees, fines, profits of PSUs) | Borrowings (market loans, external loans), disinvestment, recovery of loans | | Nature | Recurring and regular | Non-recurring and occasional | | Impact | Do not affect assets/liabilities | Increase liabilities or decrease assets | ### Revenue vs Capital Expenditure | Basis | Revenue Expenditure | Capital Expenditure | |---|---|---| | Definition | Expenditure that does not create an asset or reduce a liability | Expenditure that creates an asset or reduces a liability | | Examples | Salaries, subsidies, interest payments, defence revenue expenditure | Construction of roads, purchase of machinery, repayment of loans | | Nature | Recurring | Non-recurring | | Impact | Does not add to assets; consumed within the financial year | Adds to assets or reduces liabilities; benefit extends beyond one year | ### Types of Deficits 1. Revenue Deficit = Revenue Expenditure - Revenue Receipts. Indicates that the government's regular income is insufficient for its regular expenses. It signals the need to reduce unnecessary expenditure or increase revenue. 2. Fiscal Deficit = Total Expenditure - Total Receipts (excluding borrowings). It equals the total borrowing requirement of the government. Fiscal deficit indicates the extent to which the government is relying on borrowed funds. 3. Primary Deficit = Fiscal Deficit - Interest Payments. It shows how much of the government's borrowing is going towards expenses other than interest payments. A lower primary deficit indicates fiscal discipline. Relationship: Primary Deficit = Fiscal Deficit - Interest Payments; Fiscal Deficit = Revenue Deficit + (Capital Expenditure - Non-debt creating Capital Receipts).

Q5. Explain the balance of payments. Distinguish between the current account and capital account. Also explain fixed and flexible exchange rate systems.

### Balance of Payments (BoP) The Balance of Payments is a systematic record of all economic transactions between residents of a country and the rest of the world during a given period (usually one year). It includes transactions related to trade in goods and services, investment income, transfers, and changes in financial assets and liabilities. The BoP always balances in the accounting sense because it uses double-entry bookkeeping — every transaction is recorded as both a credit and a debit. ### Current Account vs Capital Account | Basis | Current Account | Capital Account | |---|---|---| | Records | Flow of goods, services, income, and transfers | Flow of financial assets and liabilities | | Components | (1) Visible trade (exports/imports of goods), (2) Invisible trade (services), (3) Investment income, (4) Unilateral transfers | (1) Foreign direct investment, (2) Portfolio investment, (3) External borrowings, (4) Banking capital, (5) NRI deposits | | Nature | Flow concept — transactions within the year | Stock concept — changes in asset/liability ownership | | Surplus/Deficit | Current account surplus = Exports > Imports | Capital account surplus = Inflows > Outflows | | Impact on BoP | Deficit must be financed by capital account surplus | Surplus finances current account deficit | ### Fixed vs Flexible Exchange Rate Systems | Basis | Fixed Exchange Rate | Flexible Exchange Rate | |---|---|---| | Determination | Central bank fixes the rate | Determined by market forces (demand and supply) | | Intervention | Central bank actively intervenes to maintain the rate | No routine intervention; rate adjusts automatically | | Reserves | Requires large foreign exchange reserves | Minimal reserves needed | | Stability | High certainty for trade and investment | Uncertainty due to fluctuations | | Inflation control | Harder to control domestic inflation | Easier to control inflation through monetary policy | | Speculation | Less scope for speculation | Subject to speculative attacks | | Example | China (managed peg), earlier Bretton Woods system | India (managed float), USA, UK | Managed Floating: In practice, most countries including India follow a managed floating system — the exchange rate is primarily determined by market forces, but the central bank intervenes when excessive volatility or misalignment occurs.

Common Mistakes to Avoid

1. Confusing GDP at factor cost with GDP at market price: GDP_FC excludes net indirect taxes; GDP_MP includes them. The formula is GDP_MP = GDP_FC + Net Indirect Taxes (where Net Indirect Taxes = Indirect Taxes - Subsidies). Always check which one the question asks for before applying.

2. Including intermediate goods in GDP: Never add the value of intermediate goods to GDP — it leads to double counting. Use the value added method (value of output minus value of intermediate consumption) to correctly eliminate intermediate goods.

3. Mixing up revenue deficit, fiscal deficit, and primary deficit: Revenue deficit = Revenue expenditure - Revenue receipts. Fiscal deficit = Total expenditure - Total receipts (excluding borrowings). Primary deficit = Fiscal deficit - Interest payments. Do not confuse their formulas or their economic significance.

4. Confusing stock and flow variables: Stock variables (wealth, money supply, capital stock) are measured at a point in time. Flow variables (income, expenditure, investment) are measured over a period. National income is always a flow variable.

5. Wrong multiplier formula: The investment multiplier k = 1/(1-MPC) = 1/MPS. It is NOT 1/MPC or MPC/(1-MPC). Also remember that the multiplier works in both directions — a decrease in investment reduces income by k times the decrease.

6. Misidentifying BoP accounts: Exports/imports of goods and services go in the current account, NOT the capital account. Foreign direct investment, portfolio investment, and external borrowings go in the capital account. Transfer payments (remittances, gifts) are part of the current account, not the capital account.

Exam Checklist

• [ ] Can you explain the three methods of calculating national income (value added, income, expenditure) and the adjustments needed to move from GDP_MP to NNP_FC (National Income)?
• [ ] Can you distinguish between stock and flow variables with examples?
• [ ] Can you explain the difference between real and nominal GDP, and calculate the GDP deflator?
• [ ] Can you list the functions of the RBI and distinguish them from functions of commercial banks?
• [ ] Can you explain the credit creation process with a numerical example and state the money multiplier formula?
• [ ] Can you define aggregate demand and explain equilibrium income determination using the AD-AS approach?
• [ ] Can you derive and apply the investment multiplier formula (k = 1/MPS = 1/(1-MPC))?
• [ ] Can you classify receipts and expenditure as revenue or capital, and explain all three types of deficits?
• [ ] Can you distinguish between the current account and capital account of the balance of payments with examples?
• [ ] Can you compare fixed and flexible exchange rate systems and explain the concept of managed floating?