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Question 9481Question

A developing nation decides to channel most of its public investment into heavy infrastructure and energy sectors in order to generate strong forward and backward linkages across the economy, rather than attempting simultaneous development in all sectors. Which development planning strategy is best illustrated by this approach?

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Answer: Unbalanced growth strategy

Answer

Unbalanced growth strategy
The correct answer is the unbalanced growth strategy. Formulated by Albert Hirschman, this approach recognizes that developing countries lack sufficient capital and technical capacity to develop all sectors simultaneously. Therefore, investments are concentrated in key lead sectors with strong backward and forward linkages to stimulate growth across the rest of the economy.

Step-by-Step Solution

1
Analyze the resource allocation approach described in the stem.
The country concentrates scarce investment capital in specific lead sectors (infrastructure and energy) to trigger growth in other sectors via economic linkages.
This contrasts targeted sector prioritization with broad, simultaneous multi-sector investment.
2
Identify the development strategy associated with linkage-driven deliberate imbalances.
Albert Hirschman's Unbalanced Growth Strategy advocates deliberate sector imbalances because developing nations face severe capital and managerial constraints.
Investing heavily in strategic lead sectors creates pressures and incentives that spur private investment in related industries.

Key Concept

Unbalanced Growth Strategy vs. Balanced Growth Strategy
Question 9482Question

A customer deposits a fresh primary cash sum of 400,000\text{₦}400,000 into a commercial bank. If the central bank mandates a legal cash reserve ratio of 12.5%12.5\%, what is the maximum amount of net credit (loans) created by the banking system?

Show answer & explanation

Answer: 2,800,000\text{₦}2,800,000

Answer

The maximum net credit created by the banking system is 2,800,000\text{₦}2,800,000.
With a cash reserve ratio of 12.5%12.5\%, the credit multiplier is 10.125=8\frac{1}{0.125} = 8. Total deposit expansion generated across the banking system is 400,000×8=3,200,000\text{₦}400,000 \times 8 = \text{₦}3,200,000. To determine net credit (loans) created, the initial primary deposit of 400,000\text{₦}400,000 must be subtracted from total deposits, resulting in 2,800,000\text{₦}2,800,000.

Step-by-Step Solution

1
Calculate the credit multiplier (KK).
K=1Cash Reserve Ratio=10.125=8K = \frac{1}{\text{Cash Reserve Ratio}} = \frac{1}{0.125} = 8.
The credit multiplier determines the total potential deposit expansion from a primary deposit.
2
Calculate total deposit expansion.
Total Deposits=Initial Deposit×K=400,000×8=3,200,000\text{Total Deposits} = \text{Initial Deposit} \times K = \text{₦}400,000 \times 8 = \text{₦}3,200,000.
Total deposits reflect the overall expansion in the banking system through secondary deposits.
3
Calculate net credit (loans) created.
Net Credit=Total DepositsInitial Deposit=3,200,000400,000=2,800,000\text{Net Credit} = \text{Total Deposits} - \text{Initial Deposit} = \text{₦}3,200,000 - \text{₦}400,000 = \text{₦}2,800,000.
Net credit created equals total new deposits minus the original primary cash deposit introduced.

Key Concept

Commercial Bank Credit Creation and Credit Multiplier
Question 9483Question

Under a newly revised tax policy, an earner whose gross income rises from N800,000\text{N}800,000 to N1,600,000\text{N}1,600,000 sees their total annual tax liability increase from N96,000\text{N}96,000 to N160,000\text{N}160,000. Based on the effective tax rates, which taxation system does this policy represent?

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Answer: Regressive taxation, because the average tax rate decreases from 12%12\% to 10%10\% as income increases

Answer

Regressive taxation, because the average tax rate decreases from 12%12\% to 10%10\% as income increases
The system is regressive because the average tax rate decreases from 12%12\% at an income of N800,000\text{N}800,000 to 10%10\% at an income of N1,600,000\text{N}1,600,000. A tax system is classified by how the percentage rate changes relative to income, not by the absolute monetary amount of tax paid.

Step-by-Step Solution

1
Calculate the initial average tax rate (ATR1ATR_1) for the lower income level.
ATR1=N96,000N800,000×100=12%ATR_1 = \frac{\text{N}96,000}{\text{N}800,000} \times 100 = 12\%
The average tax rate measures the proportion of total income paid as tax.
2
Calculate the new average tax rate (ATR2ATR_2) for the higher income level.
ATR2=N160,000N1,600,000×100=10%ATR_2 = \frac{\text{N}160,000}{\text{N}1,600,000} \times 100 = 10\%
To classify the tax system, the new effective tax rate must be compared to the initial rate.
3
Compare ATR1ATR_1 and ATR2ATR_2 to classify the system.
Since ATR2(10%)<ATR1(12%)ATR_2 (10\%) < ATR_1 (12\%), the tax burden as a proportion of income falls as income rises.
A tax structure where the effective tax rate decreases with higher income is defined as a regressive tax system.

Key Concept

Classification of Tax Systems by Effective/Average Tax Rate
Question 9484Question

Following the deregulation of Nigeria's telecommunications sub-sector in 2001, the market transitioned from a state-monopolized structure under the Nigerian Telecommunications Limited (NITEL) to a competitive market driven by private Digital Mobile License (DML) operators. Which of the following best analyzes the primary macroeconomic impact of this regulatory reform on the Nigerian economy?

Show answer & explanation

Answer: It lowered market transaction costs and generated substantial positive spillover effects across other sectors, significantly boosting non-oil gross domestic product.

Answer

The deregulation of the telecommunications sub-sector reduced transaction costs, created positive externalities for businesses, and expanded non-oil GDP growth.
The deregulation of Nigeria's telecommunications sector in 2001 led to rapid infrastructure expansion, lower communication and transaction costs, and positive externalities across commercial sectors, serving as a primary catalyst for non-oil GDP growth.

Step-by-Step Solution

1
Analyze the nature of the 2001 telecommunications reform in Nigeria.
The reform broke NITEL's monopoly, licensed private mobile network operators, and established an independent regulator (NCC).
Understanding the policy mechanism helps evaluate its broader economic consequences.
2
Evaluate the macroeconomic spillover effects of modern telecommunication infrastructure.
Improved connectivity drastically reduced search and communication costs for businesses, streamlined financial transactions (e.g., electronic banking), and stimulated growth in commerce and services.
Infrastructure service sectors serve as intermediate inputs that enhance total factor productivity across the broader economy.
3
Differentiate between real economic benefits and misattributed or flawed economic deductions.
The growth in non-oil GDP and economy-wide productivity represents the true macroeconomic outcome, whereas assuming automatic income equality, zero opportunity cost, or misidentifying asset ownership transfer are economic misconceptions.
Rigorous macroeconomic analysis requires distinguishing valid economic transmission channels from common analytical fallacies.

Key Concept

Macroeconomic Role and Spillover Effects of Infrastructure Sector Liberalization
Estimated Time:2m 0s
Question 9485Question

A commercial cassava processing firm operates under a linear supply function Qs=a+bPQ_s = a + bP, where QsQ_s represents the quantity supplied in bags and PP represents the market price per bag in Naira (N\text{N}). Operational market records show that when the price of cassava flour was N400\text{N}400, the firm supplied 1,200 bags1,200\text{ bags}. When the market price rose to N550\text{N}550, the quantity supplied increased to 1,800 bags1,800\text{ bags} in accordance with the law of supply. What is the reservation price (the minimum threshold price) below which the firm will offer zero bags to the market?

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Answer: N100\text{N}100

Answer

The reservation price below which the firm will offer zero supply is N100\text{N}100.
The slope of the supply function is derived as b=ΔQΔP=600150=4b = \frac{\Delta Q}{\Delta P} = \frac{600}{150} = 4. Substituting into Qs=a+bPQ_s = a + bP yields an intercept a=400a = -400, giving the supply equation Qs=400+4PQ_s = -400 + 4P. Setting Qs=0Q_s = 0 gives 4P=4004P = 400, which solves to a reservation price of N100\text{N}100.

Step-by-Step Solution

1
Calculate the slope coefficient bb using the law of supply relationship.
b=ΔQsΔP=1,8001,200550400=600150=4b = \frac{\Delta Q_s}{\Delta P} = \frac{1,800 - 1,200}{550 - 400} = \frac{600}{150} = 4
The slope bb reflects how quantity supplied changes in response to price changes according to the law of supply.
2
Substitute b=4b = 4 and a known point (P=400,Qs=1200)(P=400, Q_s=1200) into Qs=a+bPQ_s = a + bP to find the autonomous supply constant aa.
1,200=a+4(400)    1,200=a+1,600    a=4001,200 = a + 4(400) \implies 1,200 = a + 1,600 \implies a = -400
Finding the intercept aa defines the full explicit linear supply function: Qs=400+4PQ_s = -400 + 4P.
3
Determine the reservation price by setting quantity supplied Qs=0Q_s = 0.
0=400+4P    4P=400    P=N1000 = -400 + 4P \implies 4P = 400 \implies P = \text{N}100
The reservation price is the minimum market price required to induce producers to supply the first unit of output.

Key Concept

Derivation and analysis of linear supply functions and reservation price under the Law of Supply
Question 9486Question

An agro-processing enterprise in Anambra State uses raw cassava tubers as the main factor input to manufacture either garri for household food consumption or industrial ethanol for bio-fuel blending. Following a policy shift that significantly boosts the market price of industrial ethanol, the enterprise reallocates its raw cassava supply and processing capacity toward ethanol production. What is the immediate impact on the supply of garri, and which type of supply relationship does this scenario demonstrate?

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Answer: The supply of garri decreases because garri and industrial ethanol are in competitive supply.

Answer

The supply of garri decreases because garri and industrial ethanol are in competitive supply.
Garri and industrial ethanol are in competitive supply because both products compete for the same fixed input (raw cassava tubers). An increase in the price and production of ethanol diverts cassava tubers away from garri processing, leading directly to a decrease in the supply of garri.

Step-by-Step Solution

1
Identify the resource relationship between the two commodities.
Garri and industrial ethanol both require the same fixed input of raw cassava tubers.
When two or more goods compete for the same raw material or factor of production, they are in competitive supply.
2
Analyze the impact of an increase in ethanol price.
Higher ethanol prices incentivize the enterprise to divert raw cassava toward ethanol manufacturing.
Producers reallocate scarce resources toward higher-priced, more profitable output options.
3
Determine the resulting supply response for garri.
With less raw cassava available for garri processing, the supply curve of garri shifts leftward (decreases).
An increase in the supply of one competitively supplied good leads to a decrease in the supply of the alternative good.

Key Concept

Competitive Supply
Question 9487Question

An economy initially has a money supply of ₦2,0002,000 million and a velocity of money circulation of 44. Following financial sector reforms, the money supply expands by 25%25\% while the velocity of circulation rises to 55. If the total volume of real economic transactions remains constant at 500500 million units, what is the new general price level according to Fisher's Quantity Theory of Money?

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Answer: ₦25.00

Answer

The new general price level is ₦25.00.
According to Irving Fisher's Quantity Theory of Money equation (MV=PTMV = PT), the new money supply is calculated as 2,000 million×1.25=2,500 million₦2,000 \text{ million} \times 1.25 = ₦2,500 \text{ million}. Multiplying this expanded money supply by the new velocity of circulation (55) yields a total monetary expenditure of 12,500 million₦12,500 \text{ million}. Dividing this by the fixed physical volume of transactions (500 million units500 \text{ million units}) produces the correct new general price level of ₦25.00.

Step-by-Step Solution

1
Calculate the updated money supply (M1M_1) after the 25% expansion
M1=2,000 million×(1+0.25)=2,500 millionM_1 = ₦2,000 \text{ million} \times (1 + 0.25) = ₦2,500 \text{ million}
The money supply increased by 25% from its baseline of ₦2,000 million.
2
Identify the updated parameters for Fisher's Quantity Theory equation (MV=PTMV = PT)
M=2,500M = 2,500, V=5V = 5, T=500T = 500
The new velocity of circulation is given as 5 and the volume of physical transactions is constant at 500 million units.
3
Rearrange Fisher's equation to solve for the general price level (PP)
P=M×VTP = \frac{M \times V}{T}
Dividing total monetary expenditure (MVMV) by total transaction volume (TT) yields the price per transaction unit.
4
Substitute the values and compute the price level
P=2,500×5500=12,500500=25.00P = \frac{2,500 \times 5}{500} = \frac{12,500}{500} = ₦25.00
Performing the arithmetic calculation gives the updated price level.

Key Concept

Fisher's Quantity Theory of Money (MV = PT)
Question 9488Question

The national statistics bureau of a developing economy released the following macroeconomic estimates for a given financial year:

Macroeconomic ComponentAmount ($ million)
Gross Fixed Capital Formation350
Changes in Inventories50
Government Final Consumption Expenditure250
Exports of Goods and Services180
Imports of Goods and Services220
Net Factor Income from Abroad-30
Consumption of Fixed Capital60
Indirect Taxes80
Subsidies20
Government Transfer Payments45
Intermediate Purchases110

If the Net National Product at factor cost (NNPfcNNP_{fc}) for the economy was calculated as $960\$960 million, what was the value of Private Final Consumption Expenditure (CC)?

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Answer: 500500 million

Answer

500500 million
The correct answer is 500500 million. GDPmpGDP_{mp} is derived by converting NNPfcNNP_{fc} back to market prices: GDPmp=960(30)+60+8020=1110GDP_{mp} = 960 - (-30) + 60 + 80 - 20 = 1110 million. Substituting total gross investment (400400 million), government final consumption (250250 million), and net exports (40-40 million) into GDPmp=C+I+G+(XM)GDP_{mp} = C + I + G + (X - M) yields 1110=C+6101110 = C + 610, which solves to C=500C = 500 million. Transfer payments and intermediate purchases are correctly excluded.

Step-by-Step Solution

1
Examine the relationship between Net National Product at factor cost (NNPfcNNP_{fc}) and Gross Domestic Product at market prices (GDPmpGDP_{mp}).
NNPfc=GDPmp+NFIADepreciationIndirect Taxes+SubsidiesNNP_{fc} = GDP_{mp} + \text{NFIA} - \text{Depreciation} - \text{Indirect Taxes} + \text{Subsidies}
Converting from factor cost to market prices requires reversing net indirect taxes, while converting NNP to GDP requires adjusting for net factor income from abroad and capital consumption.
2
Substitute the given aggregates to solve for GDPmpGDP_{mp}.
960=GDPmp+(30)6080+20    960=GDPmp150    GDPmp=1110960 = GDP_{mp} + (-30) - 60 - 80 + 20 \implies 960 = GDP_{mp} - 150 \implies GDP_{mp} = 1110 million
Transfer payments (4545 million) and intermediate purchases (110110 million) are unearned transfers and intermediate inputs respectively, so they must be completely excluded to avoid double counting.
3
Calculate Gross Investment (II) and Net Exports (XMX - M).
I=350+50=400I = 350 + 50 = 400 million; Net Exports (XMX - M) =180220=40= 180 - 220 = -40 million
Gross investment consists of gross fixed capital formation plus inventory adjustments. Net exports equal total exports minus total imports.
4
Use the expenditure identity GDPmp=C+I+G+(XM)GDP_{mp} = C + I + G + (X - M) to determine Private Final Consumption Expenditure (CC).
1110=C+400+250+(40)    1110=C+610    C=5001110 = C + 400 + 250 + (-40) \implies 1110 = C + 610 \implies C = 500 million
Subtracting non-consumption expenditure components from total GDP at market price leaves private final consumption expenditure.

Key Concept

Expenditure Approach to National Income Measurement
Question 9489Question

A commercial town has a total money supply (MM) of ₦2,000 with a velocity of circulation (VV) of 44. If the physical volume of transactions (TT) in the town is 400400 units, what is the general price level (PP) based on Fisher's Quantity Theory of Money equation (MV=PTMV = PT)?

Show answer & explanation

Answer: 20

Answer

The general price level (PP) is ₦20.
Using Fisher's Equation of Exchange (MV=PTMV = PT), rearranging to solve for price level gives P=MVTP = \frac{MV}{T}. Substituting M=2000M = 2000, V=4V = 4, and T=400T = 400 yields P=2000×4400=20P = \frac{2000 \times 4}{400} = 20. Therefore, the price level is ₦20.

Step-by-Step Solution

1
State the Quantity Theory of Money equation.
MV=PTMV = PT
Irving Fisher's equation equates total monetary spending (MVMV) with the total value of goods and services traded (PTPT).
2
Isolate the price level variable (PP).
P=M×VTP = \frac{M \times V}{T}
Dividing both sides of the equation by TT allows direct calculation of the unknown price level.
3
Substitute the values and calculate.
P=2000×4400=20P = \frac{2000 \times 4}{400} = 20
Multiplying money supply (2000) by velocity (4) gives a total monetary output of 8000, which divided by total transactions (400) gives 20.

Key Concept

Fisher's Quantity Theory of Money Equation of Exchange
Question 9490Question

An economy is currently operating at point AA on its Production Possibility Curve, producing 120120 units of consumer goods and 5050 units of capital goods. To meet a new production target, the economy shifts resources to point BB, increasing the production of capital goods to 8080 units, while consumer goods production drops to 9090 units. What is the opportunity cost of producing the additional capital goods, expressed in units of consumer goods?

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Answer: 30

Answer

The opportunity cost of producing the additional 3030 units of capital goods is 3030 units of consumer goods.
When shifting from point AA to point BB, the production of consumer goods decreases from 120120 units to 9090 units. The difference of 3030 units is the quantity of consumer goods foregone to produce 3030 additional units of capital goods.

Step-by-Step Solution

1
Determine the change in consumer goods production.
Initial output = 120120 units, New output = 9090 units.
Opportunity cost along a PPC measures the amount of one good sacrificed to gain more of another good.
2
Subtract the new output level of consumer goods from the initial level.
12090=30120 - 90 = 30 units.
The reduction in consumer goods represents the foregone benefit (opportunity cost).

Key Concept

Opportunity cost along the Production Possibility Curve is quantified by the amount of one commodity that must be given up to obtain an additional amount of another commodity.
Question 9491Question

Match each type of economic planning listed on the left with its defining operational feature or target horizon on the right.

Click a left item, then click its matching right item

Items

Imperative Planning
Indicative Planning
Rolling Plan
Perspective Plan

Matches

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Answer

Imperative Planning matches state directive system with legally enforced output quotas; Indicative Planning matches guiding strategy for mixed economies using policy incentives; Rolling Plan matches flexible planning system evaluated and extended at regular intervals; Perspective Plan matches long-term macro framework spanning 15 to 25 years.
Imperative planning operates via mandatory central directives and output quotas. Indicative planning uses fiscal and monetary incentives to steer the private market toward national targets. A rolling plan is updated and extended continuously at regular intervals to adapt to economic changes. A perspective plan targets broad structural transformation across 15 to 25 years.

Step-by-Step Solution

1
Analyze authority mechanisms (Imperative vs Indicative)
Imperative planning uses binding legal directives and government sanctions, whereas indicative planning guides private producers using fiscal and monetary policy incentives.
This separates command-oriented resource control from market-guided economic planning.
2
Analyze time horizons and flexibility (Rolling vs Perspective)
Rolling plans continuously adjust targets at fixed intervals (e.g., year by year), while perspective plans outline multi-decade strategic visions.
This distinguishes short-to-medium flexible adjustment frameworks from fixed long-term development trajectories.

Key Concept

Types and operational features of economic planning
Question 9492Question

An economy's external trade data for a given fiscal year is presented below:

• Exports of agricultural and manufactured goods: 620millionImportsofmachineryandrawmaterials:620 million • Imports of machinery and raw materials: 780 million
• Receipts from international shipping and banking services: 110millionPaymentsforforeigntourismandinsurance:110 million • Payments for foreign tourism and insurance: 60 million
• Inflow of foreign direct investment: $250 million

Based on the data provided, what is the economy's Balance of Trade?

Show answer & explanation

Answer: A deficit of $160 million

Answer

A deficit of $160 million
The Balance of Trade (also known as the balance of visible trade or merchandise balance) calculates the difference between total physical goods exported and total physical goods imported. Subtracting visible imports (780million)fromvisibleexports(780 million) from visible exports ( 620 million) yields a deficit of $160 million. Services and capital movements are excluded from this specific component.

Step-by-Step Solution

1
Identify the relevant components of Balance of Trade
Visible exports = 620million;Visibleimports=620 million; Visible imports = 780 million
Balance of Trade (merchandise balance) only considers visible (physical) trade items.
2
Exclude non-visible trade and financial account entries
Services (110mreceipts,110m receipts, 60m payments) and Foreign Direct Investment ($250m) are excluded
Services belong to invisible trade in the Current Account, while Foreign Direct Investment belongs to the Capital and Financial Account.
3
Calculate the Balance of Trade
Balance of Trade = 620million620 million - 780 million = -$160 million
Subtract visible imports from visible exports to get the net merchandise balance.

Key Concept

Balance of Trade calculation and distinction between visible trade, invisible trade, and financial account transactions.
Question 9493Question

To achieve maximum total profit in the short run, a monopolist will expand output up to the point where which of the following conditions is satisfied?

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Answer: Marginal revenue is equal to marginal cost

Answer

Marginal revenue is equal to marginal cost
A monopolist achieves maximum total profit at the output level where marginal revenue equals marginal cost (MR=MCMR = MC). At this output, producing additional units would cost more than the revenue they generate, while producing fewer units would leave potential profits unearned.

Step-by-Step Solution

1
Identify the general profit-maximization rule for any market structure.
Profit is maximized when marginal revenue (MRMR) equals marginal cost (MCMC).
If MR>MCMR > MC, producing an extra unit adds more to revenue than to cost, increasing total profit. If MR<MCMR < MC, producing an extra unit adds more to cost than to revenue, reducing total profit.
2
Apply this rule to a monopoly firm.
The monopolist produces at the output level where MR=MCMR = MC.
This condition specifies the exact output level that yields maximum short-run profit for the monopolist.

Key Concept

Monopoly Short-Run Profit Maximization Condition
Question 9494Question

Under third-degree price discrimination, a profit-maximizing monopolist allocating output between two separated sub-markets with identical marginal costs will set a higher price in the sub-market exhibiting a higher price elasticity of demand.

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Answer: False

Answer

The statement is False. A profit-maximizing monopolist charges a lower price in the sub-market with higher price elasticity of demand and a higher price in the sub-market with lower price elasticity of demand.
The statement is false because the optimal pricing strategy under third-degree price discrimination requires charging a lower price in the sub-market where demand is more price-elastic and a higher price where demand is less price-elastic.

Step-by-Step Solution

1
Express Marginal Revenue (MRMR) in terms of Price (PP) and Price Elasticity of Demand (Ed|E_d|).
MR=P(11Ed)MR = P \left(1 - \frac{1}{|E_d|}\right)
This formula relates marginal revenue to product price and market elasticity.
2
Apply the multi-market equilibrium condition for a third-degree price discriminator.
MR1=MR2=MCMR_1 = MR_2 = MC
To maximize overall profit, marginal revenue earned from the last unit sold in each sub-market must be equal and matched to common marginal cost.
3
Equate the marginal revenue expressions for sub-market 1 and sub-market 2.
P1(11E1)=P2(11E2)P_1 \left(1 - \frac{1}{|E_1|}\right) = P_2 \left(1 - \frac{1}{|E_2|}\right)
This sets up the comparative pricing equation between the two markets.
4
Analyze the pricing relationship when E1>E2|E_1| > |E_2|.
Since E1>E2|E_1| > |E_2|, (11E1)>(11E2)\left(1 - \frac{1}{|E_1|}\right) > \left(1 - \frac{1}{|E_2|}\right), which requires P1<P2P_1 < P_2 for equality to hold.
A higher elasticity term yields a larger bracketed multiplier, meaning price must be lower in market 1.

Key Concept

Inverse elasticity rule in third-degree price discrimination
Question 9495Question

An economy recorded the following national income components for a given fiscal year:

ComponentAmount (₦ million)
Wages and salaries450450
Rent on property120120
Net interest8080
Corporate profits200200
Transfer payments (Social pensions)5050

Using the income method of measuring national income, what is the Gross Domestic Product at factor cost (in ₦ million)?

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Answer: 850

Answer

The Gross Domestic Product at factor cost using the income method is 850 million Naira.
Under the income method of national income accounting, GDP at factor cost is calculated by summing all rewards accruing to the factors of production: Wages and salaries (labour) + Rent (land) + Interest (capital) + Profits (entrepreneurship). Transfer payments such as social pensions are unearned receipts and must be omitted. Thus, National Income = ₦450m + ₦120m + ₦80m + ₦200m = ₦850m.

Step-by-Step Solution

1
Identify valid factor incomes under the income approach
Earned incomes are Wages (450450 million), Rent (120120 million), Interest (8080 million), and Profits (200200 million).
The income method aggregates rewards paid to factors of production (land, labour, capital, and enterprise) for producing current goods and services.
2
Exclude transfer payments from calculation
Transfer payments (5050 million) are excluded.
Transfer payments are receipts for which no corresponding productive service is rendered in the current period, so including them would cause double counting.
3
Calculate total GDP at factor cost
450+120+80+200=850450 + 120 + 80 + 200 = 850 million Naira.
Summing all constituent factor income components yields the total national income at factor cost.

Key Concept

Calculation of National Income using the Income Method
Estimated Time:1m 0s
Question 9496Question

In consumer theory, the absolute slope of a budget line representing Good X on the horizontal axis and Good Y on the vertical axis measures which of the following?

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Answer: The opportunity cost of Good X in terms of Good Y foregone

Answer

The opportunity cost of Good X in terms of Good Y foregone
The absolute slope of the budget line is given by the ratio of the prices of the two goods, PxPy\frac{P_x}{P_y}. This ratio reflects the rate at which the market allows a consumer to trade Good Y for Good X, representing the opportunity cost of acquiring an extra unit of Good X in terms of Good Y foregone.

Step-by-Step Solution

1
Determine the mathematical expression for the slope of the budget line.
The absolute slope of a budget line with Good X on the horizontal axis and Good Y on the vertical axis is given by the relative price ratio PxPy\frac{P_x}{P_y}.
The ratio of nominal prices indicates the market exchange rate between the two commodities.
2
Relate the price ratio to economic concepts.
The ratio PxPy\frac{P_x}{P_y} represents the quantity of Good Y that must be given up to obtain one additional unit of Good X.
Opportunity cost is defined as the value of the next best alternative foregone when making a choice.

Key Concept

Budget Line Slope as Relative Price and Opportunity Cost
Question 9497Question

The following financial data (in millions of dollars) was extracted from the national income accounting records of a nation for a given fiscal year:

Economic ComponentAmount ($ million)
Wages and salaries420
Employers' social security contributions40
Rental income of households75
Net business interest payments60
Interest on government public debt25
Dividends paid to shareholders90
Corporate profit taxes40
Undistributed corporate profits30
Mixed income of self-employed individuals115
Transfer payments (social welfare grants)55
Capital gains from asset sales35
Depreciation of capital assets50
Factor income earned by citizens abroad45
Factor income earned by foreigners domestically65
Indirect business taxes40
Government subsidies15

Based on the information provided above, calculate the Net National Product at factor cost (NNPFCNNP_{FC}) in millions of dollars.

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Answer: 850

Answer

The Net National Product at factor cost (NNPFCNNP_{FC}) is $850 million.
The Income Method sums all factor payments earned by owners of factors of production for providing current productive services. Combining compensation of employees (460M),rentalincome(460M), rental income ( 75M), net business interest (60M),totalcorporateprofits(60M), total corporate profits ( 160M), and mixed income of self-employed (115M)yieldsNetDomesticProductatfactorcost(115M) yields Net Domestic Product at factor cost ( NDP_{FC} = \870 million870\text{ million}). Adding Net Factor Income from Abroad (NFIA=$45M$65M=$20 millionNFIA = \$45\text{M} - \$65\text{M} = -\$20\text{ million}) yields Net National Product at factor cost (NNPFC=$850 millionNNP_{FC} = \$850\text{ million}). Non-factor receipts (transfer payments, public debt interest, capital gains) and depreciation are excluded.

Step-by-Step Solution

1
Calculate Compensation of Employees
$460 million
Compensation of employees includes both direct wages/salaries (420M)andnonwagebenefitssuchasemployerssocialsecuritycontributions(420M) and non-wage benefits such as employers' social security contributions ( 40M).
2
Calculate Total Corporate Profits
$160 million
Total corporate profits equal the sum of distributed profits (dividends of 90M),corporateprofittaxes(90M), corporate profit taxes ( 40M), and retained earnings (undistributed profits of $30M).
3
Calculate Net Domestic Product at factor cost (NDPFCNDP_{FC})
$870 million
NDPFCNDP_{FC} is the sum of factor earnings within the domestic economy: Compensation of Employees (460M)+Rent(460M) + Rent ( 75M) + Net business interest (60M)+Corporateprofits(60M) + Corporate profits ( 160M) + Mixed income of self-employed ($115M). Non-factor payments (transfer payments, public debt interest, capital gains) are strictly excluded.
4
Determine Net Factor Income from Abroad (NFIANFIA)
-$20 million
NFIANFIA is calculated as factor income received from abroad (45M)minusfactorincomepaidtoforeignersabroad(45M) minus factor income paid to foreigners abroad ( 65M).
5
Calculate Net National Product at factor cost (NNPFCNNP_{FC})
$850 million
NNPFC=NDPFC+NFIA=870+(20)=850NNP_{FC} = NDP_{FC} + NFIA = 870 + (-20) = 850. Depreciation is not added because the target aggregate is Net, and indirect taxes/subsidies are not added/subtracted because the evaluation is at factor cost.

Key Concept

Income Method of Measuring National Income
Question 9498Question

Tunde has 50,000₦50,000 saved and must choose between buying a laptop needed for an online coding course and buying a smartphone for personal entertainment. If Tunde decides to purchase the laptop, what is the opportunity cost of his decision?

Show answer & explanation

Answer: The smartphone foregone

Answer

The smartphone foregone
Opportunity cost, also known as real cost, refers to the next best alternative foregone when a choice is made under conditions of scarcity. By choosing to purchase the laptop, the satisfaction derived from the smartphone is sacrificed, making the smartphone foregone the opportunity cost.

Step-by-Step Solution

1
Identify the choice made and the sacrificed alternative
Tunde selected the laptop, leaving the smartphone as the unchosen option.
Opportunity cost measures the sacrifice incurred by choosing one item over another.
2
Distinguish real cost from money cost
The real cost is the smartphone given up, while the 50,000₦50,000 is the monetary expense.
In economics, opportunity cost is expressed in terms of goods/services foregone rather than money spent.

Key Concept

Opportunity Cost
Question 9499Question

Match each basic economic problem or resource allocation concept on the left with the primary mechanism used to resolve it within its corresponding economic system on the right.

Click a left item, then click its matching right item

Items

Determination of 'What to produce' in a pure command economy
Resolution of 'How to produce' in a free market economy
Determination of 'For whom to produce' in a capitalist economy
Resource allocation framework in a mixed economy

Matches

Show answer & explanation

Answer

Determining 'What to produce' in a command economy matches central planning directives; resolving 'How to produce' in a free market matches choice of production technique based on cost minimization; determining 'For whom to produce' in capitalism matches distribution according to effective demand; and resource allocation in a mixed economy matches the combined operation of price signals and government intervention.
Each economic system addresses the core economic questions using distinct mechanisms: command economies rely on centralized planning, free market economies rely on the price mechanism and profit incentives, and mixed economies blend price signals with government regulation.

Step-by-Step Solution

1
Analyze the mechanism for deciding 'What to produce' in a command economy.
State planning agencies dictate production priorities rather than market demand.
Command systems replace market forces with centralized government planning.
2
Analyze how producers decide 'How to produce' in a free market economy.
Producers select factor inputs that yield the lowest unit cost to maximize profit margin.
The price mechanism and competition drive efficient input choices.
3
Analyze how output is distributed ('For whom to produce') under capitalism.
Goods are allocated to consumers who possess effective demand (income and willingness to pay).
Market prices ration scarce goods to consumers with purchasing power.
4
Analyze resource allocation in a mixed economic system.
Private decisions via price mechanism operate alongside state intervention and public sector provision.
Mixed systems synthesize market efficiency with government regulation to address market failures.

Key Concept

Solutions to Basic Economic Problems across Systems
Question 9500Question

Match the following classifications of monopoly origins with their correct underlying economic descriptions.

Click a left item, then click its matching right item

Items

Natural Monopoly
Legal Monopoly
Raw Material Ownership

Matches

Show answer & explanation

Answer

Natural Monopoly matches with cost efficiency derived from continuous long-run economies of scale across total market demand; Legal Monopoly matches with institutional protection granted through government patents, copyrights, or public franchises; Raw Material Ownership matches with exclusive command over a vital natural input required for the production of a good.
Each classification corresponds strictly to its source: natural monopoly is rooted in economies of scale and technical efficiency, legal monopoly relies on state-granted statutory rights, and raw material ownership rests on controlling vital resource inputs.

Step-by-Step Solution

1
Examine the economic basis of a Natural Monopoly.
Recognize that high fixed costs and substantial economies of scale make a single producer the least-cost option for the industry.
Cost efficiency across the entire output range defines a natural monopoly.
2
Examine the origin of a Legal Monopoly.
Identify government legislation, such as patents and public franchises, as the sole source of market exclusivity.
Lawful restrictions prevent alternative firms from entering the market.
3
Examine the mechanism of Raw Material Ownership.
Determine that controlling indispensable inputs creates an insurmountable entry barrier for rivals.
Competitors cannot manufacture the final product without access to key inputs.

Key Concept

Sources of Monopoly Power and Barriers to Market Entry
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