WAEC Economics 2018 past questions and answers

56 questions. Try each one, then open the answer to check yourself and read the explanation.

Question 1

Basic Concepts

Economic problems arise in all societies because

  1. A.resources are mismanaged by leaders.
  2. B.there is no proper planning.
  3. C.resources are not in adequate supply.
  4. D.the services of economists are not employed.
Show the answer and explanation

Answer: C (resources are not in adequate supply.)

Explanation

Resources are scarce compared with wants in every society.

Open this question

Question 3

Theory of Production

The organization of productive factors is the responsibility of the

  1. A.management.
  2. B.entrepreneur.
  3. C.production manager.
  4. D.labour union.
Show the answer and explanation

Answer: B (entrepreneur.)

Explanation

The entrepreneur brings the other factors together and bears the risk.

Open this question

Question 4

Economic Systems

Producers operating in a free market economy are more efficient as a result of

  1. A.the existence of competition.
  2. B.the very few number of participants.
  3. C.the commitment of the shareholders.
  4. D.government's regulation of their activities.
Show the answer and explanation

Answer: A (the existence of competition.)

Explanation

Competition forces firms to cut costs and improve quality.

Open this question

Question 5

Tools of Economic Analysis

In a pie chart, the population of a city is represented by a sector 45°. If the country has a population of 10 million people, then the city's population is

  1. A.0.0045 million.
  2. B.4.5 million.
  3. C.1.25 million.
  4. D.16 million.
Show the answer and explanation

Answer: C (1.25 million.)

Explanation

45/360 × 10 million = 1.25 million.

Open this question

Question 6

Theory of Demand

A downward sloping demand curve means that

  1. A.total revenue declines as price is lowered.
  2. B.demand falls as output rises.
  3. C.demand falls as output falls.
  4. D.price must be lowered to sell more.
Show the answer and explanation

Answer: D (price must be lowered to sell more.)

Explanation

More is bought only at a lower price.

Open this question

Question 7

Theory of Demand

If the price of commodity X rises and consumers shift to commodity Y, then commodities X and Y are

  1. A.substitutes.
  2. B.complements.
  3. C.inferior goods.
  4. D.bought together.
Show the answer and explanation

Answer: A (substitutes.)

Explanation

Consumers switch to a substitute when one good becomes dearer.

Open this question

Question 8

Theory of Demand

Goods whose demand vary directly with money income are called

  1. A.inferior goods.
  2. B.complementary goods.
  3. C.substitute goods.
  4. D.normal goods.
Show the answer and explanation

Answer: D (normal goods.)

Explanation

Demand for normal goods rises when income rises.

Open this question

Question 9

Theory of Demand

An exceptional demand curve can result from

  1. A.increase in price of raw materials.
  2. B.increase in the size of the population.
  3. C.expectation of future price increase.
  4. D.change in taste of the consumer.
Show the answer and explanation

Answer: C (expectation of future price increase.)

Explanation

If people expect prices to keep rising, they buy more as price rises.

Open this question

Question 10

Theory of Supply

Palm oil and palm kernel are in

  1. A.joint supply.
  2. B.competitive demand.
  3. C.competitive supply.
  4. D.complementary demand.
Show the answer and explanation

Answer: A (joint supply.)

Explanation

Both come from the same palm fruit.

Open this question

Question 11

Theory of Production

Which of the following is true about the supply of land? It

  1. A.is higher in the urban than rural areas.
  2. B.varies with time.
  3. C.rises with demand.
  4. D.is fixed.
Show the answer and explanation

Answer: D (is fixed.)

Explanation

The total supply of land is fixed by nature.

Open this question

Question 12

Labour Market

The backward bending supply curve of labour indicates

  1. A.an abnormal supply situation.
  2. B.the law of supply.
  3. C.that labour supply and wage rate are directly related.
  4. D.that the elasticity of supply is uniform.
Show the answer and explanation

Answer: A (an abnormal supply situation.)

Explanation

Beyond a certain wage, workers offer fewer hours as wages rise, which goes against the normal law of supply.

Open this question

Question 13

Elasticity

A supply curve parallel to the X-axis indicates

  1. A.fairly elastic supply.
  2. B.infinitely elastic supply.
  3. C.fairly inelastic supply.
  4. D.perfectly inelastic supply.
Show the answer and explanation

Answer: B (infinitely elastic supply.)

Explanation

A horizontal supply curve is perfectly (infinitely) elastic.

Open this question

Question 14

Theory of Consumer Behaviour

If the marginal utility of a commodity is equal to its price, then

  1. A.the consumer is in equilibrium.
  2. B.more of the commodity can be consumed.
  3. C.total utility is also equal to its price.
  4. D.the market is not in equilibrium.
Show the answer and explanation

Answer: A (the consumer is in equilibrium.)

Explanation

For one good, the consumer is in equilibrium when MU = price.

Open this question

Question 15

Price Determination

A price floor is usually fixed

  1. A.at the equilibrium and causes no shortage.
  2. B.above the equilibrium and causes shortage.
  3. C.below the equilibrium and causes surpluses.
  4. D.above the equilibrium and causes surpluses.
Show the answer and explanation

Answer: D (above the equilibrium and causes surpluses.)

Explanation

A minimum price above equilibrium makes supply exceed demand.

Open this question

Question 16

Price Determination

A market is in equilibrium when

  1. A.there is no government intervention.
  2. B.the demand is the same as the supply.
  3. C.buyers and sellers are free to sell more goods.
  4. D.there is no free entry and exit.
Show the answer and explanation

Answer: B (the demand is the same as the supply.)

Explanation

Equilibrium means quantity demanded equals quantity supplied.

Open this question

Question 17

Theory of Costs and Revenue

A firm's average cost decreases in the long-run because of

  1. A.increasing returns to scale.
  2. B.diminishing supply.
  3. C.decreasing marginal returns.
  4. D.decreasing average fixed cost.
Show the answer and explanation

Answer: A (increasing returns to scale.)

Explanation

Increasing returns to scale (economies of scale) lower long-run average cost.

Open this question

Question 18

Theory of Production

"The larger a firm, the lower its cost of production". This statement explains the

  1. A.law of diminishing average returns.
  2. B.concept of economics of scale.
  3. C.law of comparative cost advantage.
  4. D.theory of division of labour.
Show the answer and explanation

Answer: B (concept of economics of scale.)

Explanation

Lower unit cost from a larger size is economies of scale.

Open this question

Question 19

Theory of Costs and Revenue

Use the table below to answer the question.
Quantity | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7
Total Cost | 20 | 25 | 28 | 30 | 38 | 55 | 92 | 135
The total fixed cost is

  1. A.$7.00
  2. B.$30.00
  3. C.$20.00
  4. D.$135.00
Show the answer and explanation

Answer: C ($20.00)

Explanation

Fixed cost is the total cost at zero output: $20.

Open this question

Question 20

Theory of Costs and Revenue

Use the table below to answer the question.
Quantity | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7
Total Cost | 20 | 25 | 28 | 30 | 38 | 55 | 92 | 135
At output level 5, the total variable cost is

  1. A.$5.00
  2. B.$20.00
  3. C.$55.00
  4. D.$35.00
Show the answer and explanation

Answer: D ($35.00)

Explanation

TVC = TC − TFC = 55 − 20 = $35.

Open this question

Question 21

Market Structures

In the long-run, a firm must shut down if its average revenue is

  1. A.greater than average cost.
  2. B.less than average variable cost.
  3. C.equal to the minimum average cost.
  4. D.equal to the average cost.
Show the answer and explanation

Answer: B (less than average variable cost.)

Explanation

A firm that cannot even cover average variable cost must close; in the long run it needs AR at least equal to AC.

Open this question

Question 22

Business Organisations

Public limited liability companies are democratic in nature because

  1. A.government appointees are members of the board.
  2. B.they are run by elected public officers.
  3. C.electoral principles are adopted in the day-to-day management.
  4. D.shareholders elect the board of directors.
Show the answer and explanation

Answer: D (shareholders elect the board of directors.)

Explanation

Shareholders vote to elect the board of directors.

Open this question

Question 23

Business Organisations

In the event of bankruptcy, owners of joint-stock companies lose

  1. A.their private properties.
  2. B.both company and private assets.
  3. C.only the capital invested.
  4. D.only their dividends.
Show the answer and explanation

Answer: C (only the capital invested.)

Explanation

Limited liability means shareholders lose only what they invested.

Open this question

Question 24

Distributive Trade

Wholesalers play an important role in the distribution of goods and services because they

  1. A.are located very close to consumers.
  2. B.finance both producers and retailers.
  3. C.pass information on from retailers to consumers.
  4. D.sell in small units to consumers.
Show the answer and explanation

Answer: B (finance both producers and retailers.)

Explanation

Wholesalers pay producers in advance and give credit to retailers.

Open this question

Question 25

Labour Market

If workers at the school canteen cannot sell during the holidays, this is an example of

  1. A.structural unemployment.
  2. B.frictional unemployment.
  3. C.seasonal unemployment.
  4. D.residual unemployment.
Show the answer and explanation

Answer: C (seasonal unemployment.)

Explanation

Work that stops at certain times of the year gives seasonal unemployment.

Open this question

Question 26

Population

Positive checks as envisaged by Thomas Malthus can be prevented if

  1. A.death rate is reduced.
  2. B.marriage is abolished.
  3. C.more hospitals are built.
  4. D.moral restraint is adopted.
Show the answer and explanation

Answer: D (moral restraint is adopted.)

Explanation

Malthus said famine, disease and war (positive checks) would follow unless people used preventive checks such as moral restraint.

Open this question

Question 27

Agriculture

Which of the following factors is not a reason for farmers' unstable incomes?

  1. A.Dependence on too many crops
  2. B.Poor storage facilities
  3. C.Adverse weather conditions
  4. D.Recession in the world economy
Show the answer and explanation

Answer: A (Dependence on too many crops)

Explanation

Growing many crops spreads risk; instability comes from poor storage, weather and world price falls.

Open this question

Question 28

Labour Market

Local firms can help in reducing unemployment in a country when

  1. A.land acquisition becomes centralized.
  2. B.imports of substitutes are reduced.
  3. C.waste in the firm is eliminated.
  4. D.subsidies to firms are decreased.
Show the answer and explanation

Answer: B (imports of substitutes are reduced.)

Explanation

Fewer competing imports mean more sales and jobs for local firms.

Open this question

Question 29

Business Organisations

An industry is described as a group of firms

  1. A.that provides jobs for many people.
  2. B.which uses advance technology in production.
  3. C.which produces similar products.
  4. D.that provides jobs for few people.
Show the answer and explanation

Answer: C (which produces similar products.)

Explanation

An industry is all firms making similar products.

Open this question

Question 31

National Income

A baker bought flour and other ingredients for $250.00, spent $52.00 on distribution, sold the bread for $320.00. The value added by the baker

  1. A.$302.00
  2. B.$52.00
  3. C.$18.00
  4. D.$622.00
Show the answer and explanation

Answer: C ($18.00)

Explanation

Value added = sales − bought-in inputs = 320 − 250 − 52 = $18.

Open this question

Question 32

National Income

In a country with large population of full-time housewives, national income

  1. A.will be composed of goods produced by women.
  2. B.figures will be grossly over-stated.
  3. C.statistics will be difficult to calculate.
  4. D.figures will be grossly under-estimated.
Show the answer and explanation

Answer: D (figures will be grossly under-estimated.)

Explanation

Housewives' work is unpaid and left out of national income, so the figure understates true output.

Open this question

Question 33

Money and Inflation

Demand-pull inflation is likely to be caused by

  1. A.an increase in the cost of factor inputs.
  2. B.increase in the income tax rate.
  3. C.increase in bank lending rates.
  4. D.increasingly large budget deficit.
Show the answer and explanation

Answer: D (increasingly large budget deficit.)

Explanation

Deficit spending pumps more money into the economy and raises total demand.

Open this question

Question 34

Money and Inflation

Holding money to take care of contingencies is

  1. A.a speculative motive.
  2. B.a transactions motive.
  3. C.a precautionary motive.
  4. D.an expansionary motive.
Show the answer and explanation

Answer: C (a precautionary motive.)

Explanation

Money kept for emergencies is the precautionary motive.

Open this question

Question 35

Money and Inflation

If a housewife has meat and wants tomatoes, she must find someone who has tomatoes to give and wants meat. This concept is described as

  1. A.scale of preference.
  2. B.opportunity cost.
  3. C.complementary demand.
  4. D.double coincidence of wants.
Show the answer and explanation

Answer: D (double coincidence of wants.)

Explanation

Barter needs each side to want what the other has.

Open this question

Question 36

Financial Institutions

The stock exchange is an example of the

  1. A.labour market.
  2. B.money market.
  3. C.commodity market.
  4. D.capital market.
Show the answer and explanation

Answer: D (capital market.)

Explanation

The stock exchange deals in long-term securities: the capital market.

Open this question

Question 37

Financial Institutions

What happens when the central bank increases the bank rate in an economy?

  1. A.Borrowing is discouraged
  2. B.Customers increase their borrowing
  3. C.Banks can increase their lending
  4. D.Money supply increases
Show the answer and explanation

Answer: A (Borrowing is discouraged)

Explanation

A higher bank rate raises all interest rates, so borrowing falls.

Open this question

Question 38

Public Finance

Income is redistributed when the rich are progressively taxed and

  1. A.more private schools are established.
  2. B.subsidy is provided on petroleum products.
  3. C.more public goods are provided.
  4. D.farmers are given guaranteed prices.
Show the answer and explanation

Answer: C (more public goods are provided.)

Explanation

Taxes from the rich pay for public goods that everyone, including the poor, enjoys.

Open this question

Question 39

Public Finance

In order to increase revenue, government should tax commodities for which demand is

  1. A.perfectly price inelastic.
  2. B.price inelastic.
  3. C.price elastic.
  4. D.unitary elastic.
Show the answer and explanation

Answer: A (perfectly price inelastic.)

Explanation

If quantity bought does not change at all, the tax brings in the most revenue.

Open this question

Question 40

Economic Growth and Development

Which of the following activities will not lead to economic growth?

  1. A.Massive importation of capital goods
  2. B.Intensive capital formation locally
  3. C.Use of modern technology
  4. D.Massive importation of consumer goods
Show the answer and explanation

Answer: D (Massive importation of consumer goods)

Explanation

Imported consumer goods are used up and do not add to productive capacity.

Open this question

Question 41

Economic Growth and Development

The poorer the country, the larger the percentage of labour force engaged in

  1. A.agriculture.
  2. B.mining.
  3. C.trading.
  4. D.manufacturing.
Show the answer and explanation

Answer: A (agriculture.)

Explanation

In poor countries most people work in farming.

Open this question

Question 42

International Trade

Which of the following measures can be adopted to stabilize the external value of the local currency?

  1. A.Reduce the volume of exports
  2. B.Increase the demand for imports
  3. C.Increase domestic money supply
  4. D.Reduce the demand for imports
Show the answer and explanation

Answer: D (Reduce the demand for imports)

Explanation

Fewer imports reduce demand for foreign currency, supporting the local currency.

Open this question

Question 43

Balance of Payments and Exchange Rates

Which of the following is not a measure for reducing balance of payments deficits?

  1. A.Export drive
  2. B.Reducing tariffs
  3. C.Adding value to export goods
  4. D.Increasing local production
Show the answer and explanation

Answer: B (Reducing tariffs)

Explanation

Lower tariffs make imports cheaper and increase the deficit.

Open this question

Question 44

International Trade

Nations engage in external trade because of differences in

  1. A.comparative cost.
  2. B.absolute cost.
  3. C.fixed cost.
  4. D.variable cost.
Show the answer and explanation

Answer: A (comparative cost.)

Explanation

Trade is based on comparative cost advantage.

Open this question

Question 45

International Trade

One advantage of international trade is that

  1. A.prices of goods become stable.
  2. B.countries become self-sufficient.
  3. C.goods consumed are produced at a very high cost.
  4. D.it makes possible the consumption of a variety of goods.
Show the answer and explanation

Answer: D (it makes possible the consumption of a variety of goods.)

Explanation

Trade brings goods a country cannot produce itself.

Open this question

Question 46

International Economic Organisations

Which of the following forms of economic integration is a member nation free to impose duty against non-members?

  1. A.Customs union
  2. B.Free trade area
  3. C.Common market
  4. D.Economic community
Show the answer and explanation

Answer: B (Free trade area)

Explanation

In a free trade area each member keeps its own tariffs against outsiders; a customs union has a common external tariff.

Open this question

Question 47

International Economic Organisations

The International Bank for Reconstruction and Development (IBRD) performs the following functions except

  1. A.granting long-term loans.
  2. B.assisting with technical expertise.
  3. C.reducing tariff among members.
  4. D.developing human resource.
Show the answer and explanation

Answer: C (reducing tariff among members.)

Explanation

Reducing tariffs is the work of the WTO, not the World Bank.

Open this question

Question 48

Labour Market

An electrical engineer who is teaching Physics in a secondary school is said to be

  1. A.underemployed.
  2. B.unemployed.
  3. C.fully employed.
  4. D.technologically unemployed.
Show the answer and explanation

Answer: A (underemployed.)

Explanation

He works below his training and skill level.

Open this question

Question 49

Natural Resources and Petroleum

One benefit a country can derive from the extraction of crude oil is increase in

  1. A.population.
  2. B.employment.
  3. C.money supply.
  4. D.demand for imports.
Show the answer and explanation

Answer: B (employment.)

Explanation

The oil industry creates jobs.

Open this question

Question 50

Natural Resources and Petroleum

Which of the following cannot be classified as a natural resource?

  1. A.Iron rod
  2. B.Wild life
  3. C.Solar energy
  4. D.Gold
Show the answer and explanation

Answer: A (Iron rod)

Explanation

An iron rod is manufactured from iron ore, so it is man-made.

Open this question

Theory question 101

Balance of Payments and Exchange Rates

The table below shows the composition of exports and imports of a hypothetical country. Use the information in the table to answer the questions that follow.
Exports | Amount ($) | Imports | Amount ($)
Crude oil | 120,000,000 | Rice and flour | 140,000,000
Groundnuts | 40,000,000 | Petroleum product | 80,000,000
Tourism | 45,000,000 | Vehicles and accessories | 50,000,000
Shipping & Insurance | 60,000,000 | Banking services | 60,000,000
Bauxite | 80,000,000 | Freight and insurance | 40,000,000
(a) Calculate the value of visible exports.
(b) Calculate the balance of trade for the country.
(c) List the items of invisible exports and imports.
(d) Calculate the current account balance of the country.
(e) Is the country developed or developing? Give one reason for your answer.

Show the model answer
Model answer

(a) Visible exports = crude oil 120 m + groundnuts 40 m + bauxite 80 m = $240,000,000
(b) Visible imports = rice and flour 140 m + petroleum products 80 m + vehicles 50 m = $270,000,000; balance of trade = 240 m − 270 m = −$30,000,000 (deficit)
(c) Invisible exports: tourism; shipping and insurance. Invisible imports: banking services; freight and insurance.
(d) Invisible exports = 105 m; invisible imports = 100 m; current account = (240 + 105) − (270 + 100) = 345 m − 370 m = −$25,000,000 (deficit)
(e) Developing: it exports mainly primary products (crude oil, groundnuts, bauxite) and imports food, refined petroleum and manufactured goods.

Explanation

Visible items are goods; invisible items are services.

Open this question

Theory question 102

Market Structures

The cost and output schedule of a firm is shown in the table below.
Output (kg) | 0 | 15 | 35 | 60 | 85
Variable cost ($) | 0 | 30 | 55 | 75 | 90
Total cost ($) | 15 | 45 | 70 | 90 | 105
Total revenue ($) | 0 | 30 | 70 | 120 | 170
(a) Using the data in the table, at each level of output, calculate the firm's: (i) marginal revenue; (ii) marginal cost.
(b) At what output level did the firm: (i) break even; (ii) make the highest profit; (iii) attain equilibrium?
(c) Identify the market structure in which the firm operates.

Show the model answer
Model answer

(a)(i) MR = ΔTR/ΔQ: 0→15 kg: 30/15 = $2; 15→35: 40/20 = $2; 35→60: 50/25 = $2; 60→85: 50/25 = $2
(ii) MC = ΔTC/ΔQ: 0→15: 30/15 = $2; 15→35: 25/20 = $1.25; 35→60: 20/25 = $0.80; 60→85: 15/25 = $0.60
(b)(i) Break-even at 35 kg (TR = TC = $70).
(ii) Highest profit at 85 kg: 170 − 105 = $65 (profits: −15, −15, 0, 30, 65).
(iii) MC = MR ($2) at 15 kg; but MC is falling there, so the profit-maximising equilibrium in the table is 85 kg, the output with the highest profit (MR > MC beyond 15 kg).
(c) Perfect competition: MR (= price = $2 per kg) is constant at every output.

Explanation

Divide each change in TR or TC by the change in output, since output rises in uneven steps.

Open this question

Theory question 103

Population

(a) Define optimum population.
(b) In what three ways can rapid population growth slow down the rate of economic development?
(c) Describe any three measures that can be adopted to control rapid population growth.

Show the model answer
Model answer

(a) Optimum population is the population size which, combined with the available resources and technology, gives the highest output (income) per head.
(b) Any three: reduces savings and investment because more income is consumed; high dependency ratio; pressure on social services and infrastructure; unemployment; food shortages; lower per capita income; environmental degradation; rural-urban migration and slums.
(c) Any three: family planning and use of contraceptives; education, especially of girls; raising the age of marriage; limiting tax relief/benefits to a few children; public enlightenment campaigns; improving the status of women; restricting immigration.

Explanation

Optimum population maximises income per head.

Open this question

Theory question 104

Business Organisations

(a) What are state-owned enterprises?
(b) State any three reasons for the establishment of state-owned enterprises.
(c) Highlight any four problems associated with state-owned enterprises.

Show the model answer
Model answer

(a) State-owned enterprises are businesses owned, financed and controlled by government (federal, state or local) to provide goods and services, e.g. public corporations.
(b) Any three: to provide essential services that need huge capital; to prevent exploitation by private monopolies; to control strategic industries; to create employment; to promote balanced regional development; to generate revenue; to protect national interest from foreign domination.
(c) Any four: inefficiency; political interference; corruption and embezzlement; over-staffing; inadequate funding; frequent losses requiring subsidies; poor maintenance; bureaucracy; lack of accountability.

Explanation

Reasons usually concern welfare and control rather than profit.

Open this question

Theory question 105

Labour Market

(a) Differentiate between unemployment and underemployment.
(b) With one example each, explain the following: (i) seasonal unemployment; (ii) structural unemployment; (iii) frictional unemployment; (iv) cyclical unemployment.

Show the model answer
Model answer

(a) Unemployment is when people who are willing and able to work at the current wage cannot find jobs. Underemployment is when people work below their capacity: fewer hours than they want, or in jobs below their skills (e.g. an engineer driving a taxi).
(b)(i) Seasonal: caused by seasonal changes in demand or weather, e.g. farm labourers in the dry season.
(ii) Structural: caused by long-term changes in the structure of the economy or technology, e.g. typists replaced by computers, coal miners when oil replaced coal.
(iii) Frictional: short-term, while workers move between jobs or search for jobs, e.g. a graduate looking for a first job.
(iv) Cyclical: caused by a fall in total demand during a recession/depression, e.g. factory workers laid off in an economic slump.

Explanation

Give one clear real-life example for each type.

Open this question

Theory question 106

Money and Inflation

(a) What is commodity money?
(b) Identify any three problems associated with trade by barter.
(c) Explain any three ways by which the advent of money has solved the problems of the barter system.

Show the model answer
Model answer

(a) Commodity money is a good that has value in itself and is generally accepted as a medium of exchange, e.g. cowries, salt, cattle, gold.
(b) Any three: double coincidence of wants; lack of a common measure of value; indivisibility of goods; difficulty of storing wealth; no standard of deferred payment; difficulty of transporting goods.
(c) Any three: as a medium of exchange it removes the need for double coincidence of wants; as a unit of account it gives a common measure of value; it is divisible into small units; as a store of value it allows wealth to be saved; as a standard of deferred payment it makes borrowing and credit possible; it is portable.

Explanation

Match each barter problem with the function of money that solves it.

Open this question

Theory question 107

Theory of Demand

(a) What is a demand schedule?
(b) State the law of demand.
(c) Using appropriate examples, explain the following types of demand: (i) competitive demand; (ii) derived demand; (iii) joint demand; (iv) composite demand.

Show the model answer
Model answer

(a) A demand schedule is a table showing the quantities of a commodity that consumers are willing and able to buy at various prices at a given time.
(b) Other things being equal, the higher the price of a commodity, the lower the quantity demanded, and the lower the price, the higher the quantity demanded.
(c)(i) Competitive demand: demand for goods that are substitutes, e.g. tea and coffee; a rise in the price of one raises demand for the other.
(ii) Derived demand: a good or factor is demanded because of what it helps to produce, e.g. labour or cement demanded because of demand for houses.
(iii) Joint demand: goods demanded together, e.g. car and petrol, torch and battery.
(iv) Composite demand: a good demanded for several different uses, e.g. sugar for soft drinks, confectionery and home use; wood for furniture and fuel.

Explanation

Each type needs a correct example.

Open this question

Theory question 108

Public Finance

(a) What is a tax?
(b) Describe the following rates of taxation: (i) progressive tax; (ii) proportional tax; (iii) regressive tax.
(c) Explain the following principles of a good tax system: (i) equity; (ii) convenience; (iii) economy.

Show the model answer
Model answer

(a) A tax is a compulsory payment levied by government on individuals and firms, for which no direct service is given in return.
(b)(i) Progressive: the rate of tax rises as income rises (the rich pay a higher percentage).
(ii) Proportional: the same rate (percentage) is charged at all levels of income.
(iii) Regressive: the rate of tax falls as income rises, so the poor pay a higher percentage of their income.
(c)(i) Equity: tax should be fair and based on ability to pay.
(ii) Convenience: the time and method of payment should suit the taxpayer (e.g. PAYE deducted from salary).
(iii) Economy: the cost of collecting the tax should be small compared with the revenue it yields.

Explanation

These are Adam Smith's canons of taxation.

Open this question