Introduction to Economics ICSE Class 9: Definitions, Activities and Basic Terms

What Introduction to Economics is about

Weightage: CISCE publishes no chapter weightage and no question-paper layout for ICSE Class 9 Economics. Class IX is examined by your school: one 80-mark paper of 2 hours plus 20 marks of internal assessment. Introduction to Economics is topic 1. Introduction to Economics of the 2028 syllabus.Source: CISCE ICSE 2028 Economics syllabus, Class IX

Key concepts

Four definitions of economics

1. Adam Smith (wealth definition): in 'An Inquiry into the Nature and Causes of the Wealth of Nations' (1776), Smith treated economics as the study of how a nation produces and increases its wealth. Key idea: wealth. He is called the father of economics. Criticism: it puts wealth above human welfare.

2. Lionel Robbins (scarcity definition, 1932): economics is the science which studies human behaviour as a relationship between ends and scarce means which have alternative uses. Key ideas: (i) ends, that is, wants, are unlimited; (ii) means, that is, resources, are scarce; (iii) means have alternative uses, so choice is necessary.

3. J. M. Keynes (income and employment approach): in 'The General Theory of Employment, Interest and Money' (1936), Keynes studied what decides the total level of income, output and employment in an economy. Textbooks usually summarise his view as: economics is the study of the administration of scarce resources and of the determinants of income and employment. Key idea: the economy as a whole (this is the start of modern macro economics).

4. Paul Samuelson (growth definition): economics is the study of how people and society choose, with or without the use of money, to employ scarce productive resources that could have alternative uses, to produce various commodities over time and distribute them for consumption, now or in the future, among various persons and groups in society. Key ideas: scarcity and choice, plus time (growth), plus distribution.

Worked example

(2 marks) State Robbins' definition of economics and identify its key idea.

Try it first, then show the solutionSolution

1. Definition: economics is the science which studies human behaviour as a relationship between ends and scarce means which have alternative uses - 1 mark.
2. Key idea: scarcity of means, with unlimited ends and alternative uses, which forces choice - 1 mark.

Answer: Robbins defined economics as the science that studies human behaviour as a relationship between ends and scarce means which have alternative uses. Its key idea is scarcity: wants are unlimited, resources are limited and have alternative uses, so people must choose.

Micro and macro economics

Micro economics studies individual units of the economy: one consumer, one household, one firm, one industry or the price of one product. Examples: how a household spends its income; how a firm fixes the price of its biscuits; the demand for tea.

Macro economics studies the economy as a whole and its aggregates (totals): national income, total employment, the general price level (inflation), total saving and investment, the money supply. Examples: unemployment in India; the rate of inflation; the national budget.

Differences:
1. Scope: micro looks at a part (individual units); macro looks at the whole (aggregates).
2. Central problem: micro deals mainly with the price of a product and the allocation of resources; macro deals with national income, employment and the general price level.
3. Tools: micro uses individual demand and supply; macro uses aggregate demand and aggregate supply.
4. Example: price of rice (micro) versus the general price level (macro).

Worked example

(2 marks) Classify as micro or macro: (a) the output of one textile mill; (b) the unemployment rate of India.

Try it first, then show the solutionSolution

1. (a) One firm's output is an individual unit - micro economics - 1 mark.
2. (b) The unemployment rate of the whole country is an aggregate - macro economics - 1 mark.

Answer: (a) Micro economics, because it studies one firm. (b) Macro economics, because it studies the economy as a whole.

Economic and non-economic activities

Economic activities are activities done to earn money or to produce goods and services that have a money value (to earn a living or create wealth). Examples: a farmer growing wheat for sale; a teacher teaching in a school for a salary; a shopkeeper selling goods.

Non-economic activities are done out of love, affection, social duty, religious feeling or recreation, not for money. Examples: a mother cooking for her family; a doctor treating her own child free; a person playing cricket for fun; volunteering at a temple kitchen.

Differences:
1. Motive: earning money or producing for the market versus love, duty, charity or pleasure.
2. Money value: economic activities can be measured in money and are counted in national income; non-economic activities are not.
3. Result: economic activities create income and wealth; non-economic activities give satisfaction but no income.

The same physical act can be either: the test is the motive. A cook cooking in a hotel for wages does an economic activity; the same person cooking at home for the family does a non-economic one.

Worked example

(2 marks) A teacher teaches in a school and also teaches her own son at home. Classify both activities with a reason.

Try it first, then show the solutionSolution

1. Teaching in the school for a salary is an economic activity, because it is done to earn income - 1 mark.
2. Teaching her son at home is a non-economic activity, because it is done out of love and earns no income - 1 mark.

Answer: School teaching is economic (done for a salary); teaching her son at home is non-economic (done out of affection, with no money income). The motive decides the type.

Basic economic terms (1): wants, goods, services, wealth, utility

Wants: human desires backed by the ability and willingness to pay for them. Wants are unlimited, recur and differ in urgency.

Goods: tangible (physical) things that satisfy wants and can be seen, touched and stored, such as rice, a bicycle or a shirt. Free goods are gifts of nature that are plentiful and have no price (air); economic goods are scarce and have a price (a bottle of water).

Services: intangible activities that satisfy wants, such as teaching, banking, a doctor's treatment or a haircut. They cannot be stored and are produced and used at the same time.

Wealth: in economics, wealth means all goods (and assets) that have utility, are scarce and can be transferred from one person to another and so have money value. Air has utility but is not wealth because it is not scarce; a building, gold or shares are wealth.

Utility: the want-satisfying power of a good or service. Utility is not the same as usefulness: a cigarette has utility for a smoker though it is harmful. Utility depends on the person, place and time.

Worked example

(2 marks) 'Air has utility but it is not wealth.' Explain.

Try it first, then show the solutionSolution

1. Air satisfies a human want (breathing), so it has utility - 1 mark.
2. It is not scarce and cannot be bought and sold, so it has no money value and is not wealth - 1 mark.

Answer: Air has utility because it satisfies a want. It is not wealth because wealth must also be scarce and transferable with money value, and air is freely available to everyone.

Basic economic terms (2): production to economy

Production: the creation of goods and services that have utility (and exchange value). A carpenter turning wood into a table creates utility, so he produces.

Consumption: the use of goods and services to satisfy wants directly, such as eating bread or travelling by bus.

Sustainable consumption: using goods and services in a way that meets present needs while reducing waste and pollution, so that resources remain for future generations. Examples: carrying a cloth bag, repairing instead of discarding, saving electricity and water.

Factors of production: the resources used to produce goods and services: land (all natural resources), labour (human effort), capital (man-made aids such as machines and tools) and entrepreneur (the person who organises the other three and bears the risk).

Market: in economics, not a place but the whole arrangement through which buyers and sellers of a commodity come into contact (in person, by phone or online) to buy and sell at a price.

Price: the value of a good or service expressed in money.

Value: in economics, value means value-in-exchange: the quantity of other goods a good can be exchanged for. When value is expressed in money it is called price.

Income: the money (or money's worth) earned over a period of time by using one's resources: wages, rent, interest and profit.

Saving: the part of income that is not spent on consumption. Saving = income − consumption.

Welfare: the well-being and happiness of people; economic welfare is the part of welfare that can be measured in money.

Economy: a system in which people earn their living through production, consumption, exchange, saving and investment, such as the Indian economy.

Worked example

(2 marks) Distinguish between value and price with an example.

Try it first, then show the solutionSolution

1. Value is value-in-exchange: the amount of other goods a good can be exchanged for, e.g. one pen = two notebooks - 1 mark.
2. Price is value expressed in money, e.g. one pen costs ₹40 - 1 mark.

Answer: Value is the exchange power of a good in terms of other goods (one pen for two notebooks); price is that value expressed in money (one pen for ₹40). Every price is value, but value need not be expressed in money.

Entities: households, firms, government sector, foreign sector

An economy has four main entities (sectors):
1. Households: individuals or families who own the factors of production (land, labour, capital, enterprise), supply them to firms, earn incomes and are the consumers of goods and services.
2. Firms: producing units that hire factors of production from households and produce goods and services for sale, such as a factory, a farm or a bank.
3. Government sector: the central, state and local governments that make laws and policies, collect taxes and provide public goods and services such as defence, roads, schools and hospitals.
4. Foreign sector (rest of the world): all economic dealings of the country with other countries: exports, imports, and flows of money and capital across borders.

These four are linked: households supply factors to firms and receive incomes; firms sell goods to households, the government and foreigners; the government taxes and spends; the foreign sector buys exports and supplies imports.

Worked example

(2 marks) What is meant by the household sector and the foreign sector?

Try it first, then show the solutionSolution

1. Household sector: owners of factors of production who supply them to firms, earn income and consume goods and services - 1 mark.
2. Foreign sector: the rest of the world, with which the country carries on exports, imports and capital flows - 1 mark.

Answer: The household sector consists of individuals and families who own and supply factors of production, earn incomes and consume. The foreign sector is the rest of the world, with which the economy trades goods, services and capital.

Introduction to Economics in real life

Each concept, met in an everyday situation. Read the situation, answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

Topics in this chapter

• Basic Economic Terms and the Four Entities of an Economy
• Four Definitions of Economics, Micro and Macro Economics, Economic and Non-Economic Activities

Introduction to Economics: key facts

Four definitions

Adam Smith = wealth; Robbins = scarcity and choice; Keynes = income and employment of the whole economy; Samuelson = growth (choice over time) and distribution

The syllabus spells Smith as 'Adams'.

Micro vs macro

Micro = individual units (one firm, one price); Macro = aggregates (national income, employment, general price level)

Activity test

Economic = motive of money income; Non-economic = love, duty, religion, recreation

Same act, different motive, different type.

Wealth

Wealth = goods with utility + scarcity + transferability (money value)

Air: utility but not wealth.

Saving

Saving = Income − Consumption

Factors of production

Land, labour, capital, entrepreneur

Entities

Households, firms, government sector, foreign sector

Meaning only.

Introduction to Economics: diagrams to practise

Practise each one on paper: draw it from the checklist, then tick off every label.

How the school exam asks Introduction to Economics

The question patterns to expect, and the method that works for each.

Tricks to remember Introduction to Economics

Short memory aids. Say each one aloud once, then use it on a question the same day.

• W-S-I-G

  Smith = Wealth, Robbins = Scarcity, Keynes = Income and employment, Samuelson = Growth.

  Use it when: Matching each economist to his definition.

• Wealth needs U-S-T

  Utility, Scarcity, Transferability.

  Use it when: Deciding whether something is wealth.

• LLCE

  Land, Labour, Capital, Entrepreneur.

  Use it when: Factors of production.

• HFGF

  Households, Firms, Government, Foreign: the four players on the economic field.

  Use it when: Entities of an economy.

Introduction to Economics: exam-level solved questions

Ordered from exam level to HOTS. Cover the solution, write your own, then compare step by step.

Case-study practice (Section B style)

Read the situation, then answer every part. In a school exam set on the board pattern this is a 9-mark question split into 2 + 2 + 5 marks.

Where the marks are

How a typical answer is split into step marks. Show every step: a right final answer alone rarely earns full marks.

Where students lose marks in Introduction to Economics

The slips examiners see most often, and what to write instead.

• ✗Mistake: Mixing up the economists and their definitions

  The four definitions sound alike; students attach 'scarce means' to Samuelson or 'wealth' to Robbins.

  ✓Do this: Learn W-S-I-G: Smith wealth, Robbins scarcity, Keynes income and employment, Samuelson growth.

  Usually costs: The whole definition mark.

• ✗Mistake: Classifying an activity by the work, not the motive

  Cooking or teaching can be either type; examiners set such pairs on purpose.

  Wrong working

  'Cooking is a non-economic activity.'

  Right working

  'Cooking at home for the family is non-economic; cooking in a hotel for wages is economic.'

  ✓Do this: Always state the motive as your reason.

  Usually costs: 1 mark per activity.

• ✗Mistake: Writing 'utility means usefulness'

  Utility is want-satisfying power; harmful goods can have utility.

  ✓Do this: Define utility as the want-satisfying power of a good or service.

  Usually costs: 1 mark.

• ✗Mistake: Calling a market 'a place where goods are bought and sold'

  That is the everyday meaning; in economics, a market is the whole arrangement of contact between buyers and sellers.

  ✓Do this: Say 'an arrangement through which buyers and sellers come into contact, not necessarily a place'.

  Usually costs: 1 mark.

• ✗Mistake: Giving 'distinguish' answers without examples

  Micro/macro and economic/non-economic answers are judged on matching points with examples.

  ✓Do this: Write points in pairs and end with one example on each side.

  Usually costs: 1 mark in a 5-mark answer.

Practice questions on Introduction to Economics

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

1. Q1 · 1 mark · MCQExam level

   Which of the following is a non-economic activity?
   (a) A lawyer arguing a case for a fee
   (b) A grandmother telling stories to her grandchildren
   (c) A driver driving a bus for a salary
   (d) A shopkeeper selling sweets

   Hint

   Look for no money motive.

   Answer

   (b) A grandmother telling stories to her grandchildren.

2. Q2 · 1 mark · MCQExam level

   The want-satisfying power of a commodity is called:
   (a) value
   (b) price
   (c) utility
   (d) wealth

   Hint

   Not usefulness.

   Answer

   (c) utility.

3. Q3 · 2 marks · Very short answerExam level

   Define production and consumption in economics.

   Hint

   Creation versus use of utility.

   Answer

   Production is the creation of goods and services that have utility and exchange value. Consumption is the direct use of goods and services to satisfy wants.

4. Q4 · 2 marks · Very short answerHarder exam level

   Why is Adam Smith's definition called a wealth-centred definition? State one criticism of it.

   Hint

   Title of his book.

   Answer

   Because Smith treated economics as the study of the nature and causes of the wealth of nations, making wealth the central subject. Criticism: it gives wealth more importance than human welfare.

5. Q5 · 2 marks · Very short answerHarder exam level

   'Utility is not the same as usefulness.' Explain with an example.

   Hint

   Something harmful can still satisfy a want.

   Answer

   Utility is the power to satisfy a want, whether or not the good is good for the person. A cigarette satisfies a smoker's want, so it has utility for him, though it is harmful and not useful.

6. Q6 · 2 marks · Short answerHarder exam level

   Distinguish between goods and services on three points.

   Hint

   Tangible, storable, separable.

   Answer

   Goods are tangible, can be stored and can be separated from the producer (a bicycle); services are intangible, cannot be stored, and are produced and consumed at the same time (a haircut).

7. Q7 · 2 marks · Very short answerExam level

   Explain the meaning of the government sector and firms as entities of an economy.

   Hint

   Policy and public goods; producing units.

   Answer

   The government sector consists of central, state and local governments that make policy, collect taxes and provide public goods such as defence and roads. Firms are producing units that hire factors of production and produce goods and services for sale.

8. Q8 · 2 marks · Very short answerHarder exam level

   State the four factors of production and the reward each earns.

   Hint

   LLCE.

   Answer

   Land earns rent; labour earns wages; capital earns interest; the entrepreneur earns profit.

9. Q9 · 5 marks · Long answerHOTS / competency

   A factory produces cheap plastic toys that are thrown away within weeks. Suggest how its owners and buyers could practise sustainable consumption, and explain why this matters for future generations.

   Hint

   Durability, recycling, less waste.

   Answer

   Owners could make durable, repairable toys from recyclable or natural materials and run a take-back scheme; buyers could buy fewer, longer-lasting toys, pass them on and recycle broken ones. This matters because plastic waste pollutes land and water and uses up non-renewable resources; consuming less wastefully keeps resources and a clean environment for future generations, which is the aim of sustainable consumption.

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1. 1.Who is called the father of economics?Show answer

   Adam Smith.

2. 2.What is the key idea of Robbins' definition?Show answer

   Scarcity of means with alternative uses, so choice is needed.

3. 3.Is national income studied in micro or macro economics?Show answer

   Macro economics.

4. 4.What decides whether an activity is economic?Show answer

   The motive of earning money income.

5. 5.What three features must wealth have?Show answer

   Utility, scarcity and transferability.

6. 6.Name the four entities of an economy.Show answer

   Households, firms, government sector, foreign sector.

Quick revision checklist

The night before the exam: can you do each of these without looking?

• ☐Smith: wealth; Robbins: ends, scarce means, alternative uses; Keynes: income and employment; Samuelson: choice over time and distribution.
• ☐Micro: individual units; macro: aggregates.
• ☐Economic activity: money motive; non-economic: love, duty, recreation.
• ☐Wealth: utility + scarcity + transferability.
• ☐Value: exchange power; price: value in money.
• ☐Saving = income − consumption.
• ☐Entities: households, firms, government, foreign sector.

Introduction to Economics: frequently asked questions