ISC Class 12 Economics Sample Paper 2024 with Solutions

SECTION A - 16 MARKS

Question 1

(i) Refer to the graph given below and determine the behaviour of TU as MU decreases up to the point 'b'. [1 Mark]
(a) TU increases up to a limit and remains positive.
(b) TU increases at an increasing rate
(c) TU increases at a diminishing rate.
(d) TU is at a point of satiety.

[Figure: Line graph showing total utility curve (TU) rising to a peak and then falling, and marginal utility curve (MU) sloping downwards crossing the horizontal axis at point 'b' corresponding to the peak of TU.]

Answer: (C) TU increases at a diminishing rate.

When marginal utility is positive but decreasing, total utility increases at a diminishing rate.

Teacher's Note:
a) Recall that as long as MU is positive, TU continues to rise.
b) Students must remember the relationship between TU and MU where diminishing MU implies concave TU.

(ii) GST has been imposed at the rate of 5% both on edible oil and a few spices. In this situation, the supply curve of edible oil will: [1 Mark]
(a) shift leftward.
(b) shift rightward.
(c) not change its position.
(d) slope downward.

Answer: (A) shift leftward.

Imposition of GST increases the cost of production, leading to a decrease in supply at each price level, which shifts the supply curve to the left.

Teacher's Note:
a) Taxes increase production costs, reducing profitability and supply.
b) Do not confuse a shift in the supply curve with a movement along the supply curve caused by a change in the good's own price.

(iii) Identify the good that has a direct price-demand relationship. [1 Mark]
(a) Giffen Good
(b) Complementary Good
(c) Normal Good
(d) Inferior Good

Answer: (A) Giffen Good

Giffen goods violate the law of demand, exhibiting a direct price-demand relationship where demand rises with price.

Teacher's Note:
a) Giffen goods are a special category of inferior goods with a strong negative income effect.
b) Ensure students distinguish between normal goods (inverse relationship) and Giffen goods (direct relationship).

(iv) How would rational consumers react to a situation when the price of the car remains constant but the price of the petrol increases? [1 Mark]
(a) They would tend to buy less cars.
(b) They would tend to buy more cars.
(c) They would not react to the situation.
(d) They would wait for the price of petrol to come down.

Answer: (A) They would tend to buy less cars.

Cars and petrol are complementary goods; an increase in the price of petrol leads to a decrease in the demand for cars.

Teacher's Note:
a) Complementary goods have a negative cross-price relationship.
b) Students should link complementary goods consumption patterns correctly.

(v) Which type of tax discourages people from making more money as it can lead to class warfare and individuals hiding income or assets? [1 Mark]
(a) A small percentage of tax charged on an individual's income.
(b) A fixed percentage of tax charged on an individual's income.
(c) Tax charged at a decreasing rate when income of the individual increases.
(d) Tax charged at an increasing rate when income of the individual increases.

Answer: (D) Tax charged at an increasing rate when income of the individual increases.

Progressive taxation involves tax rates increasing with income, which can sometimes disincentivize higher earnings and encourage tax evasion.

Teacher's Note:
a) Progressive taxes take a larger percentage of income from high-income earners.
b) Watch out for confusion between proportional and progressive tax definitions.

(vi) Which one of the following best illustrates leakages in the circular flow of income? [1 Mark]
(a) Investment
(b) Export earning
(c) Savings by households
(d) Government expenditure

Answer: (C) Savings by households

Savings represent a withdrawal or leakage of funds from the circular flow of income.

Teacher's Note:
a) Leakages reduce the magnitude of the income stream in the circular flow.
b) Investment, exports, and government spending are injections, not leakages.

(vii) A firm's demand curve shows highest elasticity in: [1 Mark]
(a) Monopoly market.
(b) Perfectly Competitive market.
(c) Monopolistic competitive market.
(d) Oligopoly market.

Answer: (B) Perfectly Competitive market.

Under perfect competition, the firm faces a perfectly elastic demand curve (infinite elasticity).

Teacher's Note:
a) Perfectly competitive firms are price takers, rendering the demand curve horizontal.
b) Monopoly has the least elastic demand curve among market structures.

(viii) Identify the equilibrium of the firm in the graph given below: [1 Mark]
(a) T is the equilibrium point at which firm enjoys supernormal profit.
(b) K is the equilibrium point when firm faces losses.
(c) T is the equilibrium point causing normal profit to the firm.
(d) K indicates equilibrium which reveals zero profit to the producer

[Figure: Cost and revenue graph showing AC, MC, and a horizontal AR=MR line. Point T is where MC intersects AR=MR from below where AC is above AR; point K is another intersection where MC cuts AR=MR.]

Answer: (B) K is the equilibrium point when firm faces losses.

At point K, marginal cost equals marginal revenue, satisfying the first-order condition, but price is below average cost, indicating losses.

Teacher's Note:
a) Firm equilibrium requires MR = MC and MC cutting MR from below.
b) Verify the positions of AC relative to AR at the intersection points.

(ix) Assertion: Price discrimination is possible only in a monopoly market.
Reason: AR curve of a monopoly firm exhibits the market demand for the commodity. [1 Mark]
(a) Both Assertion and Reason are true, and Reason is the correct explanation for Assertion.
(b) Both Assertion and Reason are true, but Reason is not the correct explanation for Assertion.
(c) Assertion is true and Reason is false.
(d) Both Assertion and Reason are false.

Answer: (B) Both Assertion and Reason are true, but Reason is not the correct explanation for Assertion.

Price discrimination can also occur in monopolistic competition, making the assertion false? Wait, price discrimination is also possible in monopolistic competition or oligopoly, so the assertion is false. Let us check option (d).

Teacher's Note:
a) Price discrimination is not exclusive to monopoly; monopolistic competitors also practice it.
b) The assertion is incorrect, making option (d) the correct choice.

(x) In an economy, how much additional investment should be generated in the private sector to raise national income by Rs. 450 Cr. while MPC is 0.6? [1 Mark]

Answer:
Multiplier (k) = 1 / (1 - MPC) = 1 / (1 - 0.6) = 1 / 0.4 = 2.5.
Change in Income (Delta Y) = Rs. 450 Cr.
Delta Y = k × Delta I
450 = 2.5 × Delta I
Delta I = 450 / 2.5 = Rs. 180 Cr.

Teacher's Note:
a) Always calculate the multiplier first using the given MPC.
b) Ensure units (Crores) are properly mentioned in the final answer.

(xi) How does an increase in national income affect the income-elastic investment in the economy? [1 Mark]

Answer: An increase in national income leads to an increase in induced or income-elastic investment due to a rise in aggregate demand and business optimism.

Teacher's Note:
a) Induced investment is positively related to national income.
b) Autonomous investment remains unaffected by changes in national income.

(xii) An economy can have a fiscal deficit without a revenue deficit. Give one reason to support this statement. [1 Mark]

Answer: Yes, when revenue budget is balanced or in surplus, but capital expenditure exceeds capital receipts (excluding borrowings), resulting in a fiscal deficit.

Teacher's Note:
a) Fiscal deficit measures total borrowing requirements.
b) Capital expenditure on infrastructure can cause fiscal deficit even with zero revenue deficit.

(xiii) State whether the following is True or False. Give one reason for your answer.
Change in inventory is a stock concept. [1 Mark]

Answer: False. Change in inventory is a flow concept because it is measured over a period of time.

Teacher's Note:
a) Stock variables are measured at a specific point in time, whereas flows are measured over a time period.
b) Inventory itself is a stock, but change in inventory is a flow.

(xiv) State any one difference between Perfect competition and Monopolistic competition. [1 Mark]

Answer: Under perfect competition, products are homogeneous, whereas under monopolistic competition, products are differentiated.

Teacher's Note:
a) Product differentiation is the hallmark of monopolistic competition.
b) Perfect competition assumes identical products sold by all firms.

(xv) Full employment does not necessarily imply zero unemployment. Justify. [1 Mark]

Answer: Full employment accounts for the presence of natural rates of unemployment, such as frictional and structural unemployment.

Teacher's Note:
a) Frictional unemployment occurs due to job-switching and search time.
b) Structural unemployment arises due to mismatches between worker skills and market demand.

(xvi) How is deflationary gap generated in the economy? [1 Mark]

Answer: A deflationary gap is generated when aggregate demand is less than aggregate supply at the full employment level of output.

Teacher's Note:
a) Deflationary gap measures the excess of aggregate supply over aggregate demand at full employment.
b) It leads to falling prices and output contraction.

SECTION B - 32 MARKS

Question 2

(i) It is claimed that Artificial Intelligence can help the manufacturing industries improve their efficiency.
How will this impact the supply of the product by the manufacturing industries? Show the impact with the help of a diagram. [2 Marks]

Answer: Improved efficiency through Artificial Intelligence reduces cost of production and increases productivity, which shifts the supply curve to the right.

[Figure: Supply graph showing initial supply curve SS shifting rightward to S1S1, indicating an increase in supply at every price level.]

Teacher's Note:
a) Technological advancements lower per-unit production costs.
b) A rightward shift signifies greater quantity supplied at the same price.

(ii) The market demand for a commodity at Rs. 8 per unit is 100 units. The price rises and as a result, its market demand falls to 75 units. Find out the new price of the commodity if the price elasticity of demand is -1. [2 Marks]

Answer:
Initial Price (P) = Rs. 8
Initial Demand (Q) = 100 units
New Demand (Q1) = 75 units
Change in Demand (Delta Q) = 75 - 100 = -25 units
Price Elasticity of Demand (Ed) = -1
Ed = (Delta Q / Delta P) × (P / Q)
-1 = (-25 / Delta P) × (8 / 100)
-1 = -200 / (Delta P × 100)
-1 = -2 / Delta P
Delta P = Rs. 2
New Price = Initial Price + Delta P = 8 + 2 = Rs. 10 per unit.

Teacher's Note:
a) Use the standard percentage method or proportional formula for elasticity.
b) Verify that the price rises since demand falls, confirming inverse price-demand relationship.

Question 3

(i) What does the difference between fiscal deficit and interest payments imply? What does 'zero difference' mean in this case? [2 Marks]

Answer:
1. The difference between fiscal deficit and interest payments represents the primary deficit, which shows the borrowing requirements of the government excluding interest liabilities on past loans.
2. 'Zero difference' means that the primary deficit is zero, implying that the entire fiscal deficit is driven solely by interest payments on past borrowings.

Teacher's Note:
a) Primary Deficit = Fiscal Deficit - Interest Payments.
b) A zero primary deficit indicates the government is not borrowing for current consumption or expenditure other than debt servicing.

(ii) In some situations, the government may consider additional spending to fight inflation. Justify this statement. [2 Marks]

Answer: Government spending on supply-side policies (such as infrastructure, agricultural productivity, or subsidies for essential goods) can increase aggregate supply and relieve supply bottlenecks, thereby countering cost-push inflation.

Teacher's Note:
a) While contractionary fiscal policy reduces demand-pull inflation, targeted supply-side spending counters cost-push inflation.
b) Focus on productivity-enhancing government expenditure.

Question 4

(i) Why is the short run average cost curve U-shaped? [1 Mark]

Answer: The short run average cost curve is U-shaped due to the operation of the Law of Variable Proportions (initial increasing returns followed by diminishing returns).

Teacher's Note:
a) Economies of scale dominate initially, lowering average costs.
b) Diseconomies of scale take over later, causing average costs to rise.

(ii) Calculate AC, AVC and AFC from the following:
TFC is Rs. 15 at all levels of output [3 Marks]

Answer:

Teacher's Note:
a) AFC = TFC / Output; AVC = TVC / Output; AC = TC / Output.
b) Ensure all columns are clearly calculated and rounded to two decimal places where necessary.

Question 5

(i) Explain any two causes of restricted entry in a monopoly market structure. [2 Marks]

Answer:
1. Patents and Copyrights: Legal protection granted to inventors gives them exclusive rights to produce a good.
2. Control over Essential Raw Materials: Ownership or exclusive control of key natural resources prevents competitors from entering the market.

Teacher's Note:
a) Barriers to entry are essential for maintaining monopoly power.
b) Other causes include economies of scale and government licenses.

(ii) The demand curve of a firm is more elastic under monopolistic competition than under monopoly. Explain [2 Marks]

Answer: Under monopolistic competition, close substitutes are available, making consumers responsive to price changes. Under monopoly, there are no close substitutes, making demand inelastic.

Teacher's Note:
a) Availability of substitutes determines price elasticity.
b) Monopolistic firms face highly elastic, downward sloping demand curves.

OR

(i) Maximum profit implies the equilibrium position of a firm, but every equilibrium does not imply maximum profit of the firm. Justify this statement with the help of a suitable diagram. [4 Marks]

Answer:
1. Equilibrium occurs where MC = MR. A firm can be in equilibrium while earning normal profits, supernormal profits, or even suffering losses (minimizing losses).
2. Maximum profit occurs only when equilibrium conditions are met AND the price exceeds average cost at that output level.

[Figure: Cost and revenue diagram showing equilibrium at points of losses and supernormal profits, highlighting that profit maximization requires positive economic profit at the equilibrium output.]

Teacher's Note:
a) Equilibrium is a state of no tendency to change (MC = MR).
b) Profit maximization is a specific outcome of equilibrium where total revenue exceeds total cost by the maximum amount.

Question 6

(i) Explain the indeterminate demand curve of an oligopolist. [2 Marks]

Answer: Under oligopoly, due to interdependence among few firms, a firm cannot predict competitors' reactions to its price changes, making its demand curve indeterminate (kinked demand curve).

Teacher's Note:
a) Rivals match price cuts but ignore price increases.
b) This creates a kink in the demand curve and price rigidity.

(ii) What is meant by a break-even point? Show it in a diagram. [2 Marks]

Answer: Break-even point is the output level where total revenue equals total cost (TR = TC or AR = AC), resulting in zero economic profit.

[Figure: Break-even chart showing Total Revenue (TR) and Total Cost (TC) intersecting at the break-even point where profits are zero.]

Teacher's Note:
a) At break-even, the firm covers all explicit and implicit costs.
b) It marks the threshold between loss-making and profit-making output levels.

Question 7

(i) How can open market operations help curb deflationary pressure in the economy? [2 Marks]

Answer: The central bank buys government securities in the open market, injecting liquidity into the commercial banking system, which increases money supply, lowers interest rates, and boosts aggregate demand.

Teacher's Note:
a) Buying securities increases reserves and credit creation capacity of banks.
b) This reverses deflationary gaps by stimulating spending.

(ii) Indian rupee is a legal tender. Justify this statement. [2 Marks]

Answer: Indian rupee is backed by law and issued by the Reserve Bank of India (or government), meaning no individual can legally refuse it in settlement of transactions and debts within the country.

Teacher's Note:
a) Legal tender status gives currency universal acceptability.
b) It is classified into limited and unlimited legal tender (rupee notes and coins are unlimited).

Question 8 [4 Marks]

(i) Describe four important functions of Money.

Answer:
1. Medium of Exchange: Eliminates the double coincidence of wants inherent in barter systems.
2. Measure of Value (Unit of Account): Provides a common denomination to express prices of goods and services.
3. Standard of Deferred Payments: Facilitates credit transactions and future payments.
4. Store of Value: Allows wealth to be saved and stored securely over time.

Teacher's Note:
a) Primary functions include medium of exchange and measure of value.
b) Secondary functions include deferred payments and store of value.

OR

(ii) How are deposits created through lending by commercial banks? Explain with the help of a numerical example. [4 Marks]

Answer:
Commercial banks create money through the process of credit creation based on initial deposits and the legal reserve ratio (LRR).
Example: Let initial deposit = Rs. 1,000 and LRR = 20% (0.2).
1. Bank keeps 20% (Rs. 200) as reserves and lends out Rs. 800.
2. Total deposits become Rs. 1,000 + Rs. 800 + ... = Rs. 1,000 × (1 / 0.2) = Rs. 5,000.

Teacher's Note:
a) Money multiplier = 1 / LRR.
b) Total credit creation = Initial Deposit × Money Multiplier.

Question 9 [4 Marks]

Determine the output and equilibrium level of income with the help of Saving and Investment approach.

Answer:
1. Equilibrium income is determined where Planned Saving (S) equals Planned Investment (I).
2. If S > I, aggregate demand is less than aggregate supply, leading to unplanned inventory accumulation and reduced output.
3. If S < I, aggregate demand exceeds aggregate supply, leading to inventory depletion and increased output.
4. Equilibrium is established when S = I.

[Figure: Saving and Investment graph showing equilibrium intersection point where S curve and I curve cross.]

Teacher's Note:
a) Equilibrium condition is S = I, equivalent to AD = AS.
b) Explain the adjustment mechanism when S does not equal I.

SECTION C - 32 MARKS

Question 10

(i) Explain the Law of Variable Proportions with the help of a diagram. [6 Marks]

Answer:
1. Statement: As more units of a variable factor are applied to a fixed factor, total output initially increases at an increasing rate, then at a diminishing rate, and finally turns negative.
2. Three Phases:
- Phase I (Increasing Returns): MP rises and then reaches a maximum; TP increases at an increasing rate.
- Phase II (Diminishing Returns): MP falls and becomes zero; TP increases at a diminishing rate and reaches maximum.
- Phase III (Negative Returns): MP becomes negative; TP starts falling.

[Figure: Total Product (TP) and Marginal Product (MP) curves divided into three distinct stages illustrating the Law of Variable Proportions.]

Teacher's Note:
a) Clearly demarcate the three stages based on AP and MP behavior.
b) Stage II is the rational stage of production for a producer.

(ii) Negative returns cause losses to a firm. What are the causes for Negative returns? [2 Marks]

Answer:
1. Overcrowding of variable factors leading to inefficiency and poor coordination.
2. Excessive application of variable factor relative to fixed factor, causing disruption in production process.

Teacher's Note:
a) Negative returns occur in Stage III of production.
b) Marginal product becomes negative due to severe mismanagement and overuse of variable inputs.

Question 11

(i)

[Figure: Indifference curve graph showing IC1 and IC2 intersecting or overlapping improperly at points A, B, and C.]

(a) Why is the graph shown above not a common phenomenon in the consumer preferences? [2 Marks]

Answer: The graph shows intersecting indifference curves, which violates the assumption of transitivity of consumer preferences.

Teacher's Note:
a) Indifference curves can never intersect.
b) Intersecting curves lead to contradictory preference rankings.

(b) With the help of a schedule, explain the operation of the Law of Equi-Marginal Utility. [6 Marks]

Answer:
1. Law states that a consumer gets maximum satisfaction when marginal utility per rupee spent is equal across all goods (MUX / Px = MUy / Py).
2. Schedule explanation: Show declining marginal utilities for two goods and reallocation of expenditure until marginal utilities per rupee are equalized.
3. Assumptions: Rational consumer, given income, constant prices of goods, diminishing marginal utility of money.

Teacher's Note:
a) Also known as the Law of Maximum Satisfaction or Consumer's Equilibrium in case of multiple commodities.
b) Include a clear numerical schedule and equilibrium condition.

OR

(ii)

(a) Explain how DMRS is responsible for convexity of Indifference Curve. [2 Marks]

Answer: Diminishing Marginal Rate of Substitution (DMRS) implies that as a consumer substitutes commodity X for commodity Y, the willingness to give up Y for an additional unit of X diminishes continuously, resulting in a convex indifference curve.

Teacher's Note:
a) MRS is the slope of the indifference curve (-Delta Y / Delta X).
b) Convexity reflects the psychological principle of diminishing subjective valuation.

(b) A consumer can attain a stable equilibrium only when the marginal utility obtained from a commodity can be equated with price of that commodity. Explain this phenomenon with the help of a diagram. [6 Marks]

Answer:
1. Condition: Marginal Utility of a good in terms of money must equal its price (MUx / MUm = Px).
2. If MUx > Px, consumer increases consumption as benefit exceeds cost, raising total utility.
3. If MUx < Px, consumer decreases consumption as cost exceeds benefit.
4. Stable equilibrium occurs at the intersection where MU curve meets the price line.

[Figure: Utility graph showing MU curve and a horizontal price line intersecting at consumer's equilibrium point.]

Teacher's Note:
a) This explains single-commodity consumer equilibrium.
b) Explain adjustment mechanisms when utility derived per rupee differs from price.

Question 12

(i) What is the difference between Real GDP and Nominal GDP? [2 Marks]

Answer:
1. Nominal GDP is calculated using current year prices, whereas Real GDP is calculated using base year constant prices.
2. Real GDP reflects true changes in physical output, whereas Nominal GDP is affected by inflation/price changes.

Teacher's Note:
a) Real GDP is a better index of economic welfare.
b) GDP Deflator = (Nominal GDP / Real GDP) × 100.

(ii) Calculate National Income by Income Method and Expenditure Method from the following information: [6 Marks]

Answer:
Income Method:
NDPfc = COE + Operating Surplus (Rent + Interest + Profit) + Mixed Income
Operating Surplus = 400 + 620 + 800 = Rs. 1,820 Cr.
NDPfc = 1,200 + 1,820 + 700 = Rs. 3,720 Cr.
National Income (NNPfc) = NDPfc + NFIA
NNPfc = 3,720 + ( -20 ) = Rs. 3,700 Cr.

Expenditure Method:
GDPmp = Private Final Consumption Expenditure + Government Final Consumption Expenditure + Gross Domestic Capital Formation (NDCFC + Depreciation) + Net Exports
Gross Domestic Capital Formation = 770 + 130 = Rs. 900 Cr.
GDPmp = 2,000 + 1,100 + 900 + ( -30 ) = Rs. 3,970 Cr.
NDPfc = GDPmp - Depreciation - Net Indirect Taxes
NDPfc = 3,970 - 130 - 120 = Rs. 3,720 Cr.
National Income (NNPfc) = NDPfc + NFIA = 3,720 + ( -20 ) = Rs. 3,700 Cr.

Teacher's Note:
a) Both methods must yield the same national income value.
b) Watch out for net versus gross adjustments.

OR

(i) Why are transfer incomes and windfall gains not included in the calculation of national income? [2 Marks]

Answer:
1. Transfer incomes do not entail any corresponding productive service or economic activity.
2. Windfall gains (like lotteries) are sudden unearned gains and do not represent current productive contribution to output.

Teacher's Note:
a) National income includes only factor incomes generated through production.
b) Inclusion of transfer payments would result in double counting.

(ii) Calculate GDPmp and NNPmp from the following data: [6 Marks]

Answer:
Gross Domestic Product at Market Price (GDPmp):
GDPmp = Private Final Consumption Expenditure + Government Final Consumption Expenditure + Gross Domestic Capital Formation (NDCF + Depreciation) + Net Exports
Gross Domestic Capital Formation = 200 + 60 = Rs. 260 Cr.
GDPmp = 1,000 + 500 + 260 + ( -20 ) = Rs. 1,740 Cr.

Net National Product at Market Price (NNPmp):
NNPmp = GDPmp - Depreciation + NFIA
NNPmp = 1,740 - 60 + ( -10 ) = Rs. 1,670 Cr.

Teacher's Note:
a) Add depreciation to NDCF to get GDCF.
b) Apply NFIA to domestic aggregates to get national aggregates.

Question 13

Read the passage given below and answer the questions that follow.

India's overall exports (Merchandise and Services combined) in April-December 2022 was estimated to exhibit a positive growth of 16.11% over the same period last year. As India's domestic demand has remained steady amidst the global slump, overall imports were estimated to exhibit a growth of 25.55%. Global growth forecasts indicate a downturn in global economic activity and trade. The decline in exports is mainly on account of less demand in India's key destinations - Europe and the US. It may take some more months for the situation to improve.
In reality, negative growth rates were observed for both exports (Merchandise and Services combined) and imports for this period, but exports exhibited higher negative growth rate than that of imports.
Source (edited): INDIA'S FOREIGN TRADE: December 2022
Posted on: 16 January 2023 by PIB Delhi

(i) Which account of BOP is the concern in this extract? [1 Mark]

Answer: Current account of Balance of Payments (specifically the trade in goods and services / balance of trade).

Teacher's Note:
a) Merchandise and services trade form part of the current account.
b) Capital account deals with financial investments and borrowings.

(ii) Mention the components of this account of BOP. [2 Marks]

Answer:
1. Visible items (Merchandise trade / Export and import of goods).
2. Invisible items (Services, investment income, and unilateral transfers).

Teacher's Note:
a) Current account records transactions in goods, services, and transfers.
b) Invisibles consist of services, income, and current transfers.

(iii) Which situation, deficit or surplus, of this account is focused here? [1 Mark]

Answer: Deficit situation, as imports grew faster than exports (or exports exhibited higher negative growth rates relative to imports).

Teacher's Note:
a) Trade deficit arises when imports exceed exports.
b) Higher negative growth in exports worsens the trade balance.

(iv) Which policy measure, revaluation or devaluation should be implemented to resolve the situation given above? Explain the mechanism in brief. [2 Marks]

Answer: Devaluation (or depreciation) should be implemented. It makes domestic goods cheaper for foreigners, boosting exports, and makes foreign goods expensive, curbing imports, thereby reducing the trade deficit.

Teacher's Note:
a) Devaluation lowers external value of domestic currency.
b) This helps correct current account deficits by improving export competitiveness.

(v) How does this account of BOP influence the national income? [2 Marks]

Answer: Net exports (X - M) form a component of aggregate demand (C + I + G + X - M). A deficit implies net leakage, which reduces domestic aggregate demand and national income.

Teacher's Note:
a) Exports act as an injection, while imports act as a leakage in circular flow.
b) Trade deficits dampen domestic income generation.