Due to an increase in price, a seller increases the quantity offered for sale from 400 units to 450 units. What is the percentage change in quantity supplied?
An increase in the price of a commodity from $10 to $15 leads to an increase in the quantity supplied from 10 units to 15 units. The price elasticity of supply is
A.0.
B.0.5.
C.1.
D.5.
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Answer: C (1.)
Explanation
Both quantity and price rise by 50%, so Es = 50 ÷ 50 = 1.
A financial institution established for the purpose of providing specialized services like acceptance of bills of exchange and equipment leasing is known as
A.Merchant Bank.
B.Development Bank.
C.Central Bank.
D.Insurance Company.
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Answer: A (Merchant Bank.)
Explanation
Merchant banks accept bills of exchange, arrange equipment leasing and help firms raise capital.
The table below shows an extract from balance of payments for country A. Use the table to answer the questions that follow: Balance of payments Items Items of transactions | Receipts ($) | Payments ($) 1. Merchandise (Visible trade) | 52,000.00 | 40,000.00 2. Shipping, other transport and travel | 4,000.00 | 8,000.00 3. Investment income | 20,000.00 | 5,000.00 4. Other services | 2,500.00 | 7,500.00 5. Unrequited transfers | 22,800.00 | 7,000.00 6. Direct investment | 50,000.00 | 26,000.00 7. Other long-term capital | 254,000.00 | 289,000.00 8. Short-term capital | 221,000.00 | 238,000.00 Calculate the: (a) balance of trade; (b) balance on current account; (c) balance on capital account; (d) balance of payments.
The table below presents the price and quantity supplied by a palm oil producer. Use the information in the table to answer the following questions. Price ($) | Quantity Supplied (gallons) 6 | 200 12 | 300 18 | 400 20 | 500 24 | 600 (a) If the price of palm oil falls from $20.00 to $18.00, calculate the price elasticity of supply. (b) Interpret your answer in question 2(a) above. (c) Study the extract below and answer the following questions. The price of palm oil remains at $6.00 per gallon and an increase in the price of a related product causes an increase in the supply of palm oil. (i) Give a graphical presentation to illustrate this change; (ii) Indicate the type of supply for the two products. (d) State three reasons that can cause a change in supply.
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Model answer
(a) % change in quantity = (400 − 500)/500 × 100 = −20%; % change in price = (18 − 20)/20 × 100 = −10%; Es = 20 ÷ 10 = 2 (b) Supply is elastic (Es > 1): a 1% change in price causes a 2% change in quantity supplied. (c)(i) Supply curve shifts to the right (S0 to S1); at the unchanged price of $6.00 the quantity supplied rises from 200 gallons to a larger quantity; label axes, curves and quantities. (ii) Joint supply: the related product (e.g. palm kernel) and palm oil are produced together, so a higher price of one raises the output of both. (d) Any three: change in cost of inputs; change in technology; prices of related goods; weather/natural conditions; government taxes and subsidies; number of producers; expectations of future prices.
Explanation
Use the old values ($20, 500 gallons) as the base.
(a) Define occupational mobility of labour. (b) Identify any four barriers to occupational mobility of labour. (c) State any two factors that will make labour efficient.
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Model answer
(a) Occupational mobility of labour is the ease with which workers can move from one occupation or job to another. (b) Any four: long period and high cost of training; lack of required skills or education; professional/trade union restrictions and licensing; age; lack of information about vacancies; discrimination (sex, ethnic); natural ability/talent; attachment to a job or reluctance to change. (c) Any two: education and training; good health and nutrition; good working conditions; adequate wages and incentives; use of modern tools; good management.
Explanation
Occupational mobility is between jobs; geographical mobility is between places.
(a) What is crop farming? (b) Outline any four measures that can be adopted to increase crop production in your country. (c) State any two contributions of the industrial sector to agriculture in your country.
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Model answer
(a) Crop farming is the cultivation of plants (food crops and cash crops) on land for food, raw materials or sale. (b) Any four: provision of improved seeds and fertilisers; mechanisation; credit facilities to farmers; extension services; irrigation; land tenure reform; better storage and processing; guaranteed prices/marketing; rural infrastructure; pest and disease control; research. (c) Any two: supplies farm machines, tools and fertilisers/agrochemicals; provides market for agricultural raw materials; processes and preserves farm produce; provides jobs and income that raise demand for food.
Explanation
Measures should raise yields or the area cultivated.
(a) Highlight any four differences between a public limited liability company and a private limited liability company. (b) Explain any four advantages of a limited liability company.
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Model answer
(a) Any four: public company has a minimum of 7 (or 2 under some laws) members with no maximum, private company 2 to 50; public company invites the general public to buy its shares, private company cannot; shares of a public company are freely transferable and may be quoted on the stock exchange, private company's shares are restricted; public company must publish its accounts, private company need not; public company needs a certificate of trading before starting business; public company ends with 'Plc', private with 'Ltd'; public company usually raises far more capital. (b) Any four: limited liability of shareholders; ability to raise large capital; continuity (separate legal entity); shares are transferable; professional management; economies of scale; can sue and be sued in its own name.
(a) Define gross national income. (b) Using appropriate examples, distinguish between: (i) Personal income and disposable income; (ii) Nominal income and real income. (c) Outline any three uses of national income statistics.
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Model answer
(a) Gross national income is the total money value of incomes earned by the citizens and firms of a country from productive activities at home and abroad in a year, before allowing for depreciation. (b)(i) Personal income is the total income received by individuals from all sources (wages, rent, interest, transfers) before personal income tax; disposable income is personal income minus personal income tax, the amount available to spend or save. E.g. salary N100,000, tax N10,000: personal income N100,000, disposable income N90,000. (ii) Nominal income is income in current money terms; real income is what that money can buy after allowing for price changes. E.g. income doubles but prices also double: nominal income rose, real income unchanged. (c) Any three: measure economic growth and performance; compare standards of living over time and between countries; economic planning; reveal the structure of the economy (contribution of each sector); basis for international aid and contributions; guide investors.
Explanation
Use simple numerical examples for the distinctions.
(a) What is the normal chain of distribution? (b) State any three functions of middlemen in the chain of distribution. (c) Highlight any four problems involved in the distribution of goods in West Africa.
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Model answer
(a) The normal chain of distribution is the route by which goods move from producer to consumer: manufacturer → wholesaler → retailer → consumer. (b) Any three: breaking bulk; storage/warehousing; transportation; giving credit; giving market information; grading, packaging and branding; advertising and sales promotion; bearing risks; financing producers. (c) Any four: poor transport network; inadequate storage facilities; too many middlemen raising prices; hoarding and smuggling; inadequate finance/credit; poor communication; insecurity; poor market information; multiple taxes and checkpoints.
(a) What is a specific tax? (b) Explain with the aid of diagrams, the effects of specific tax on a commodity that has a: (i) perfectly elastic demand; (ii) perfectly inelastic demand. (c) State two differences between a direct and an indirect tax.
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Model answer
(a) A specific tax is a fixed amount of tax per unit of a commodity, regardless of its value (e.g. N10 per litre). (b) The tax shifts the supply curve upward by the amount of the tax. (i) Perfectly elastic demand (horizontal D): price stays the same, quantity falls; the whole tax is borne by the producer (seller). (ii) Perfectly inelastic demand (vertical D): quantity stays the same, price rises by the full amount of the tax; the whole tax is borne by the consumer. Diagrams: D, S0, S1 (shifted up by the tax), old and new price and quantity labelled. (c) Any two: direct tax is on income/property, indirect on goods and services; burden of a direct tax cannot be shifted, that of an indirect tax can be; direct tax is usually progressive, indirect tax regressive; direct tax paid directly to government by the taxpayer, indirect tax collected through sellers.
Explanation
Incidence falls on whichever side of the market is less able to respond.