Fiche de révision : Year 10 Economics Fundamentals

📋 Course Outline

1. Economics Definitions and Core Concepts
2. Economic Analysis and Basic Problems
3. Production and Factors of Production
4. Scale and Economies of Production
5. Business Organizations
6. Theory of Demand
7. Supply, Equilibrium and Economic Policies
8. Government Economic Policies
9. Production Possibility and Productivity
10. Population and Demographic Change
11. Labour Market and Wages
12. Agriculture and Its Systems
13. Mining and Distributive Trade
14. Trade Unions, Money and Unemployment
15. Unemployment Types and Responses
16. Economic Systems

📖 1. Economics Definitions and Core Concepts

🔑 Key Concepts & Definitions

• Robbins’s Economics : In 1932, Professor Lionel C. Robbins defined economics as the social science that studies human behaviour as a relationship between unlimited ends and scarce means with alternative uses.
• Scarcity : The fundamental economic problem because resources are limited relative to insatiable human wants.
• Opportunity Cost : The value of the next best alternative forgone when a choice is made, and it is also called real or true cost.
• Adam Smith’s Economics : In 1776, Adam Smith defined economics as an inquiry into the nature and causes of the wealth of nations.
• Scale of Preference : A list of human wants arranged in order of relative importance.

📝 Essential Points

📌 Needs are things essential for living, whereas wants are human desires that people can live without; both are called ends in economics.

📌 Microeconomics studies individual economic units such as households, firms and industries, whereas macroeconomics studies large-scale economic factors and overall economic performance.

💡 Memory Hook

Unlimited wants versus limited resources

📖 2. Economic Analysis and Basic Problems

🔑 Key Concepts & Definitions

• Economic Analysis Tools : Basic tools of economic analysis are methods, techniques and instruments used to study, explain and interpret economic problems for sound decisions and predictions.
• Central Tendency : Measures of central tendency, also called measures of location, provide the middle or centre of a set of data through the mean, median and mode.

★ Must-know

📐 Formula — For ungrouped data, the arithmetic mean is $\bar{X}=\frac{\sum x}{n}$ or $\bar{X}=\frac{\sum fx}{n}$, while for grouped data it is $\bar{X}=\frac{\sum fx}{\sum f}$.

• A command economy solves economic problems through central government planning, a capitalist economy through demand and willingness to pay or the price mechanism, and a mixed economy through price mechanisms combined with government regulation.

Further detail

• Economics uses observation, hypothesis formulation, data collection, data organization and analysis, law formulation, law testing and prediction based on laws.

• What to produce depends on consumers’ needs, market demand, consumer income, cost of production, availability of resources and the type of economy.

📖 3. Production and Factors of Production

🔑 Key Concepts & Definitions

• Production : The creation of goods and services and their distribution to final consumers to satisfy human wants; it is the creation of utility.
• Factors of Production : The resources combined to produce goods and services: land, labour, capital and the entrepreneur.
• Land : Comprises all natural resources used in production, including soil, water, crude oil, forests and diamonds, and its reward is rent.
• Labour : All physical and mental human effort applied to producing goods and services, and its reward is wages or salary.
• Capital : A man-made asset used to aid production and is wealth set aside to create further wealth; its reward is interest.
• Entrepreneur : Coordinates the other factors of production, makes decisions, bears business risks, finances and markets the business, and receives profit or loss.

★ Must-know

📌 Consumer goods are ready for use without further production, whereas capital goods are man-made goods used to produce other goods and services.

• Primary production extracts natural raw materials, secondary production processes them into finished products, and tertiary production provides commercial and professional services to final consumers.

📌 Increasing returns means that higher production reduces cost per unit, whereas diminishing returns means that adding variable labour to fixed land eventually reduces additional output.

Further detail

📌 Direct production creates goods and services for household requirements, whereas indirect production uses specialization for exchange.

📖 4. Scale and Economies of Production

🔑 Key Concepts & Definitions

• Scale of Production : The size of a firm’s productive capacity or the size of operation it adopts.
• Internal Economies : Advantages from a firm’s own expansion, including lower average cost, greater efficiency, stronger competition, better technology, stronger supplier bargaining power and improved access to finance.
• Internal Diseconomies : Disadvantages of expansion that reduce efficiency or increase unit cost through delayed decisions, weaker personnel relationships, coordination difficulties, resource wastage and slow adaptation.
• External Economies : Cost advantages arising from the growth of an industry or location, encouraging low-cost production, interdependence, specialization, development and organized markets.
• External Diseconomies : Cost disadvantages caused by industry or location expansion beyond a firm’s control, including congestion, pressure on social amenities, increased crime, pollution and vulnerability to enemy attack.

💡 Memory Hook

Internal benefits, external environment

📖 5. Business Organizations

🔑 Key Concepts & Definitions

• Sole Proprietorship : A business owned, financed and managed by one person who seeks profit and has unlimited liability.
• Partnership : A profit-making business formed by 2 to 20 persons under a legal agreement called a partnership deed.
• Limited Liability Company : Restricts each shareholder’s debt burden to the amount of share capital individually invested during liquidation.
• Public Enterprise : Owned, established and controlled by government, usually through an Act of Parliament or enabling decree, to provide essential services rather than primarily make profit.
• Co-operative Society : A cooperative society is a voluntary self-help organization in which people with common interests operate a business for members’ benefit, with democratic management and profit sharing based on patronage.

📝 Essential Points

📌 Private enterprises are owned by individuals and primarily seek profit, whereas public enterprises are government-owned and primarily provide social services.

• A sole proprietorship has one owner, a partnership has 2 to 20 members, a private limited company has 2 to 50 shareholders, a public limited company has at least 7 shareholders with no maximum, and a cooperative may have any number of persons.

📌 In a general partnership all partners share responsibilities, risks and profits and have unlimited liability, whereas in a limited partnership liability is limited for some partners and at least one partner has unlimited liability.

📌 A private limited company restricts share transfers, has 2 to 50 shareholders and cannot invite the public to subscribe, whereas a public limited company permits public subscription and share transfers, requires at least 7 shareholders and has no maximum.

💡 Memory Hook

Private profit versus public service

📖 6. Theory of Demand

🔑 Key Concepts & Definitions

• Demand : The quantity of a commodity that consumers are willing and able to buy at a given price, place and time.
• Exceptional Demand : A pattern that violates the law of demand, so a higher price may increase or leave demand unchanged and a lower price may decrease or leave demand unchanged.

★ Must-know

• Ceteris paribus, a higher price causes a lower quantity demanded and a lower price causes a higher quantity demanded.

📌 A change in quantity demanded results from a change in the commodity’s own price and causes movement along the demand curve, whereas a change in demand results from other factors and shifts the curve.

• Demand is affected by commodity price, prices of related commodities, consumer income, weather, expected future prices, advertising, tastes and fashion, population size and structure, and credit facilities.

• Joint demand concerns goods needed together, substitute demand concerns goods serving the same purpose, composite demand concerns one commodity serving several purposes, and derived demand concerns demand for a commodity because another commodity is demanded.

Further detail

• The milk demand schedule shows quantities of 9, 12, 15, 18, 21, 24 and 27 at prices of 35, 30, 25, 20, 15, 10 and 5 respectively.

💡 Memory Hook

Movement along versus shift of the curve

📖 7. Supply, Equilibrium and Economic Policies

🔑 Key Concepts & Definitions

• Supply : Effective supply is the quantity of goods and services sellers are willing and able to offer for sale at a particular price and time.
• Market Equilibrium : Occurs when total quantity demanded equals total quantity supplied, and the equilibrium point is where the demand and supply curves intersect.
• Fiscal Policy : The use of government spending and taxation to influence economic activity, inflation and investment.
• Monetary Policy : The regulation of money supply and interest rates by a central bank to control inflation, unemployment and economic growth.
• Privatization : The transfer of ownership or management of government-owned enterprises to private individuals or entities to improve efficiency, reduce public-sector burden and encourage private participation.
• Commercialization : Restructures state-owned enterprises to operate as profit-making entities using private-sector management practices without necessarily transferring ownership to the private sector.
• Indigenization : Uses government law to increase citizens’ participation in ownership and management of business enterprises and industrial sectors.
• Nationalization : Transfers privately owned enterprises to government for economic, social or political reasons, with compensation paid to affected owners.
• Trade Policy : Consists of measures governing international trade, including tariffs, quotas and trade agreements, while liberalization removes or reduces government restrictions on trade, investment and industry.

★ Must-know

• Ceteris paribus, a higher price causes a higher quantity supplied and a lower price causes a lower quantity supplied.

📌 A change in quantity supplied results from a change in the commodity’s own price and causes movement along the supply curve, whereas a change in supply results from other factors and shifts the curve.

Further detail

• Supply is affected by commodity price, cost of production, technology, season, government policies, expected future prices, taxation and prices of related commodities.

📐 Formula — Excess supply is calculated as $\text{Excess Supply}=\text{Supply}-\text{Demand}$.

💡 Memory Hook

Market forces versus government intervention

📖 8. Government Economic Policies

🔑 Key Concepts & Definitions

• Fiscal Policy : The use of government spending and taxation to influence the economy.
• Trade Policy : Trade policies are measures governing international trade, including tariffs, quotas and trade agreements.
• Exchange Rate Policy : The management of a country's currency value in relation to other currencies through fixing the currency or allowing it to fluctuate with market forces.
• Income Policy : Income policies are strategies for controlling wages and prices to manage inflation, including wage caps, price agreements and minimum-wage laws.

📖 9. Production Possibility and Productivity

🔑 Key Concepts & Definitions

• Production Possibility Curve : Shows the maximum combinations of two goods or services an economy can produce with given resources and technology when resources are fully and efficiently used.
• Productivity : The efficiency with which inputs such as labour, capital, land and technology are used to produce outputs, often measured as output per unit of input over a specific period.
• Marginal Product : The additional output produced by applying one additional unit of a variable factor while other factors remain fixed.

★ Must-know

• Points on the PPC represent productive efficiency, points inside it represent feasible but inefficient production, and points outside it are unattainable with current resources and technology.

• The slope of the PPC represents opportunity cost because producing more of one good requires sacrificing some production of the other good.

• Under the law of variable proportion, increasing one factor while other factors remain fixed eventually causes the increases in output to diminish.

Further detail

• An outward shift of the PPC represents economic growth because the economy's production capacity has increased.

📐 Formula — Total product is related to average product and the quantity of the variable factor by $TP = AP \times Q$.

📖 10. Population and Demographic Change

🔑 Key Concepts & Definitions

• Population Density : The number of people living per unit of land area.
• Net Migration : The difference between the number of immigrants entering a country and emigrants leaving it.
• Population Census : The government counting of all people within a country at a particular time to obtain information such as age, gender, occupation and residence.
• Malthusian Theory : States that population grows geometrically while food production grows arithmetically, eventually causing poverty, famine and suffering.
• Demographic Transition Theory : Explains the shift from high birth and death rates to low birth and death rates as societies industrialize, modernize and improve living standards.

★ Must-know

📐 Formula — Population density is calculated as $\text{Population Density} = \frac{\text{Total Population}}{\text{Land Area}}$.

📐 Formula — Population growth rate is calculated as $\text{Population Growth Rate} = (\text{Birth Rate} - \text{Death Rate}) + \text{Net Migration}$.

📌 A de facto census counts people who are physically present during the census, whereas a de jure census counts permanent residents whether present or absent.

Further detail

• World life expectancy at birth rose from 59.7 in 1975 to 65.6 in 1999, while life expectancy in developing Asian countries rose from 58.5 to 66.2 over the same period.

• Major Nigerian censuses identified in the course were conducted in 1963, 1991 and 2006, with 1963 described as the first post-independence census and 2006 as the latest completed census.

📖 11. Labour Market and Wages

🔑 Key Concepts & Definitions

• Labour Market : The market in which workers supply labour and employers demand it in exchange for wages or salaries.
• Labour Efficiency : The ability of workers to produce maximum output with minimum effort, time and resources.
• Labour Demand : The quantity of workers employers are willing and able to hire at different wage rates over a given period and is derived from demand for goods and services.
• Labour Supply : The total number of hours workers are willing and able to work at different wage rates over a given period.
• Labour Mobility : The ability and willingness of workers to move between jobs, occupations, industries or geographical locations in response to labour-market changes.

★ Must-know

• The labour force consists of employed people and unemployed people who are willing and able to work and actively seeking employment.

📌 Excess demand for labour occurs when demand exceeds supply at the current wage and tends to raise wages, whereas excess supply occurs when supply exceeds demand and tends to lower wages.

Further detail

📌 A wage is usually paid hourly, daily or weekly according to time worked or output, whereas a salary is a fixed regular payment usually paid monthly or bi-weekly regardless of hours worked.

📌 A nominal wage is the actual monetary payment, whereas a real wage is adjusted for inflation and indicates purchasing power.

📖 12. Agriculture and Its Systems

🔑 Key Concepts & Definitions

• Agriculture : The science, art and practice of cultivating soil, growing crops and raising animals for food, fibre, fuel and other products.
• Mixed Farming : Combines crop production and livestock rearing on the same farm, allowing manure to be used as fertilizer and diversifying income.
• Organic Agriculture : Avoids synthetic fertilizers and pesticides and emphasizes natural processes, environmental health, economic profitability and social equity.

★ Must-know

📌 Subsistence agriculture produces mainly for the farmer's family with little surplus, whereas commercial or mechanized agriculture produces for market sale using modern technology and mechanization.

• Major agricultural problems include climate change, soil degradation, water scarcity, biodiversity loss, price volatility, limited market access, and restricted access to credit and insurance.

Further detail

• The main components of agriculture are crop production, livestock farming, forestry and fish farming.

📖 13. Mining and Distributive Trade

🔑 Key Concepts & Definitions

• Mining : The extraction of minerals, metals and other valuable resources from the Earth's crust for industrial, economic or domestic use.
• Distribution : The process of making goods and services available to consumers at the right time, place and quantity by moving them from producers to final consumers.
• Wholesaler : Buys goods in large quantities from producers and sells them in smaller quantities to retailers.
• Retailer : Buys goods in small quantities from wholesalers and sells them in units or small quantities to final consumers.

★ Must-know

• The Nigerian mining industry involves exploration, extraction, processing, marketing and distribution, and government regulation and policymaking.

• Major mining problems in Nigeria include inadequate infrastructure, illegal mining, environmental degradation, obsolete technology, inconsistent policies, insecurity and communal conflict.

📌 The direct distribution channel is Producer → Consumer, whereas indirect channels may be Producer → Wholesaler → Retailer → Consumer, Producer → Retailer → Consumer, or Producer → Agent/Broker → Consumer.

Further detail

• Nigeria's cited mineral resources include tin in Plateau State, iron ore in Kogi State, gold in Osun and Zamfara States, lead and zinc in Enugu and Ebonyi States, limestone in Edo and Ogun States, coal in Enugu State, marble in Ekiti State, gypsum in Yobe State, crude oil and natural gas in the Niger Delta, and uranium in Adamawa State.

• Distribution activities include warehousing, transportation, marketing and sales, and delivery.

📖 14. Trade Unions, Money and Unemployment

🔑 Key Concepts & Definitions

• Trade Union : An organized group of workers formed to promote and protect common interests such as better wages, improved working conditions and job security.
• Trade by Barter : The direct exchange of goods and services without using money.
• Unemployment : Occurs when people who are willing and able to work at prevailing wage rates cannot find paid employment.

★ Must-know

• Trade-union tools include strikes, work-to-rule, go-slows, picketing, boycotts, collective bargaining and lobbying.

• Barter problems include lack of double coincidence of wants, indivisibility of goods, absence of a standard measure of value, lack of store of value and difficulty with deferred payment.

• The course identifies frictional, structural, cyclical, seasonal, technological, voluntary, residual and casual unemployment, as well as underemployment.

Further detail

• Employers' association tools include lockouts, dismissal, blacklisting, recruitment of strike-breakers, legal action and refusal to bargain.

📖 15. Unemployment Types and Responses

🔑 Key Concepts & Definitions

• Unemployment : A situation in which individuals who are willing and able to work at prevailing wage rates cannot find paid employment opportunities.

★ Must-know

• The main types of unemployment are frictional, structural, cyclical, seasonal, technological, voluntary, residual, casual, and underemployment.

• The causes of unemployment include lack of education and skills, economic recession, population growth, technological advancement, corruption and mismanagement, and global competition.

• The effects of unemployment include loss of income and reduced purchasing power, lower national productivity and Gross Domestic Product, increased crime and social unrest, depression and low self-esteem, instability and protests, and an increased dependency ratio.

Further detail

• The labour force includes individuals aged 18 and above who are actively seeking work.

• Solutions to unemployment include improving education and skill acquisition, diversifying the economy, encouraging entrepreneurship through loans, grants, and training for small and medium-scale enterprises, creating jobs through public works and infrastructure investment, adapting workers to advanced technologies, and using population-control measures such as family planning.

💡 Memory Hook

Joblessness: causes → effects → solutions

📖 16. Economic Systems

🔑 Key Concepts & Definitions

• Economic System : The framework by which a society organizes and allocates resources, goods, and services to meet people's needs and wants and determines how they are produced, distributed, and consumed.

★ Must-know

• A capitalist economic system is based on private ownership of the factors of production, profit maximization, supply-and-demand market forces, competition, and minimal government intervention.

• A socialist economic system is based on government ownership and control of major factors of production and distribution, centralized planning, equitable distribution, limited private ownership, and the provision of public services.

• A mixed economic system combines capitalism and socialism by allowing private and public sectors to coexist, regulating markets, providing welfare programs, combining profit with social equity, and using flexible economic policies.

Further detail

• Capitalism can encourage innovation, efficiency, consumer choice, individual effort, entrepreneurship, economic growth, and wealth creation, but it may produce inequality, worker and resource exploitation, underprovided public goods, and monopolies.

• Socialism can reduce inequality, promote social welfare, ensure essential goods and services, prevent exploitation, and stabilize the economy through planning, but it may limit innovation, create bureaucratic inefficiency, reduce incentives, and enable corruption or mismanagement.

• A mixed economy can balance individual freedom with social welfare, encourage private-sector efficiency, reduce extreme wealth disparities, and address market failures, but it may suffer from over-regulation, inefficient or corrupt public enterprises, difficult balancing of interests, and unequal implementation.

📊 Synthesis Tables

Types of Business Ownership

Demand and Supply Changes