EconomicsICSE Class 9 · Problems of an Economy

Efficient Use of Resources and the Three Central Problems of an Economy (ICSE Class 9)

Updated 18 October 2026 · Fact-checked

Because resources are scarce they must be used efficiently, with the least waste and with enough kept for the future. Every economy faces three central problems: what to produce and how much, how to produce (the choice between labour-intensive and capital-intensive techniques) and for whom to produce (the distribution of output). Capitalist economies solve them mainly through the price mechanism, socialist economies through central planning and mixed economies through both.

Scarcity forces every economy to answer what, how and for whom to produce; capitalist, socialist and mixed economies answer differently.

Illustration drawn for QuestionBuddy.

Understand Efficient Use of Resources and the Three Central Problems of an Economy

Need for efficient use of resources. Efficient use means getting the maximum output and satisfaction from given resources with the least waste and keeping enough for the future.
Why: it satisfies more wants from limited resources; it raises output and incomes and helps reduce poverty; it conserves non-renewable resources for future generations (sustainable development); it reduces pollution and waste.
Example: drip irrigation gives water directly to the roots, so the same water irrigates more land than flood irrigation. Other examples are LED bulbs, recycling paper, repairing machines and car-pooling.

Central problem 1: what to produce (and how much). The economy cannot produce everything, so it must choose between consumer goods and capital goods, necessities and luxuries, civil and defence goods, and present consumption and future growth. Producing more of one means producing less of another. Example: hospitals or highways with a limited budget; wheat or sugarcane for a farmer.

Central problem 2: how to produce. The choice of technique, that is, the combination of factors.

Labour-intensive technique: more labour, less capital (handloom weaving, hand harvesting). It suits a country with plenty of cheap labour and creates jobs.
Capital-intensive technique: more machines, less labour (power looms, combine harvesters). It gives large output and uniform quality and suits a country with plenty of capital.

The aim is to produce at the lowest cost while making the best use of the factors the country has.

Central problem 3: for whom to produce. The distribution of output (or national income) among the people: who gets how much. It depends on how income is shared among owners of factors (wages, rent, interest, profit) and among rich and poor. Example: subsidised food grains for the poor or all grain at the market price.

How economies solve them. Capitalist: the price mechanism. Socialist: central planning. Mixed (such as India): both.

Neighbouring topics: resources, scarcity and the basic economic problem are on the previous page of this chapter.

Efficient Use of Resources and the Three Central Problems of an Economy: key facts

Three central problems: What to produce
how to produce
for whom to produce; Arise from scarcity.
Techniques: Labour-intensive: more labour, less capital | capital-intensive: more machines, less labour; Choose according to the factors available.
Solution by economy: Capitalist price mechanism
socialist central planning
mixed both; Link with the types of economies.

Capitalist	price mechanism
socialist	central planning
mixed	both

How to answer Efficient Use of Resources and the Three Central Problems of an Economy questions

Use this routine to identify a central problem.

1Read the decision in the question.
2If it is about which goods and how much, the problem is what to produce.
3If it is about the method or the mix of labour and machines, it is how to produce.
4If it is about who receives the output or how income is shared, it is for whom to produce.
5Add a one-line example and the way the economy decides.

Efficient Use of Resources and the Three Central Problems of an Economy in real life

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

Drip irrigation

Suppose a farmer has 40,000 litres of water for a day. Flood irrigation needs 10,000 litres for one plot, while drip irrigation needs 4,000 litres for one plot.

How many plots can he irrigate with each method, and how many more with drip?

Try it first, then show the solutionSolution

Flood: 40,000 / 10,000 = 4 plots.
Drip: 40,000 / 4,000 = 10 plots.
Difference: 10 - 4 = 6 more plots.

Answer: 4 plots by flood and 10 plots by drip, which is 6 more plots with the same water.

Memory hook: Same water, more output.

Tricks to remember Efficient Use of Resources and the Three Central Problems of an Economy

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

W-H-F
What, How, For whom.
Use it when: Three central problems.
Labour-rich, labour-intensive
A country with plenty of workers prefers techniques that use more labour.
Use it when: How to produce.
Price, plan or both
Capitalism uses prices, socialism uses plans, mixed economies use both.
Use it when: Solving the problems.

Efficient Use of Resources and the Three Central Problems of an Economy: solved examples

Ordered from board level to HOTS. Try each one before you open the solution.

Example 1: Which problem · 1 mark · MCQBoard level

A farmer must decide whether to grow wheat or sugarcane on his land. This is the problem of:
(a) how to produce (b) for whom to produce (c) what to produce (d) none of these

Try it first, then show the solutionSolution

Choosing which good to produce is the problem of what to produce.

Answer: (c) what to produce

Example 2: Labour or capital · 3 marks · Short answerHarder board level

A factory can make 1,000 shirts with 50 workers and 2 machines, or with 10 workers and 10 machines. Which technique suits a country with plenty of cheap labour and little capital? Give two reasons.

Try it first, then show the solutionSolution

The first, which uses more labour and less capital, is the labour-intensive technique. (1 mark)
It creates more jobs for the many workers available. (1 mark)
It uses fewer machines, which suits a country where capital is scarce. (1 mark)

Answer: The labour-intensive technique (50 workers, 2 machines); it gives jobs and saves scarce capital.

Example 3: For whom to produce · 3 marks · Short answerHarder board level

An economy produces 100 units of grain and has 50 people. In plan A, 10 people get 50 units and the other 40 share the remaining 50 units equally. In plan B, everyone gets the same amount. Find the grain per person in each group in plan A and in plan B. Which central problem is being solved?

Try it first, then show the solutionSolution

Plan A: 10 people share 50 units, so 5 units each. (1 mark)
The other 40 share 50 units, so 1.25 units each; plan B: 100 / 50 = 2 units each. (1 mark)
The distribution of output among people is the problem of for whom to produce. (1 mark)

Answer: Plan A: 5 and 1.25 units per person; plan B: 2 units per person; the problem is for whom to produce.

Example 4: Case study: a budget decision · 4 marks · Case-basedHOTS / competency

A government has a budget of Rs 1,000 crore and must choose between building hospitals and building highways.
(i) Which central problem is this? (1)
(ii) If it builds highways, what is the opportunity cost? (1)
(iii) How would a capitalist economy and a socialist economy decide? (2)

Try it first, then show the solutionSolution

(i) What to produce.
(ii) The hospitals that could have been built (the next best alternative given up).
(iii) A capitalist economy decides mainly through the price mechanism and private profit; a socialist economy through a central planning authority.

Answer: (i) what to produce (ii) hospitals forgone (iii) price mechanism versus central planning

Example 5: Efficient use with numbers · 3 marks · Short answerHarder board level

A farmer has 30,000 litres of water. Flood irrigation needs 6,000 litres per plot and drip irrigation needs 2,000 litres per plot. How many plots can he irrigate in each way? What percentage of water per plot does drip save?

Try it first, then show the solutionSolution

Flood: 30,000 / 6,000 = 5 plots. (1 mark)
Drip: 30,000 / 2,000 = 15 plots, which is 10 more. (1 mark)
Saving per plot = 4,000 litres, which is 4,000 / 6,000 x 100 = 66.7 per cent (about two-thirds). (1 mark)

Answer: 5 plots by flood and 15 by drip; drip saves about 66.7 per cent of the water per plot.

Where students lose marks in Efficient Use of Resources and the Three Central Problems of an Economy

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

Mistake: Naming the problem without an example
Only the heading is written.
Wrong working
What to produce
Right working
What to produce, for example hospitals or highways
Do this: Add a short example.
Usually costs: 1 mark
Mistake: Confusing techniques
Intensive is misread.
Wrong working
Labour-intensive uses more machines
Right working
Labour-intensive uses more labour and less capital
Do this: Intensive means heavy use of that factor.
Usually costs: 1 mark
Mistake: Ignoring the economy type
The solution is not mentioned.
Wrong working
All three are solved by markets
Right working
Capitalist: price mechanism; socialist: planning; mixed: both
Do this: Link the problems to the economy.
Usually costs: 1 mark

Exam tips

For each problem, state the decision, give an example and name how economies decide.
Use units in numerical answers (plots, litres).
Mention that producing more of one good means producing less of another.
For efficiency, give one concrete example such as drip irrigation.

Practice questions on Efficient Use of Resources and the Three Central Problems of an Economy

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

Q1 · 1 mark · MCQBoard level
The labour-intensive technique is best suited to a country with:
(a) plenty of capital (b) plenty of cheap labour (c) very few workers (d) no land
Hint
It uses more workers.
Answer
(b) plenty of cheap labour
Q2 · 2 marks · Very short answerBoard level
Name the three central problems of an economy.
Hint
W-H-F.
Answer
What to produce, how to produce and for whom to produce.
Q3 · 3 marks · Short answerHarder board level
Identify the central problem: (i) should cars or buses be produced? (ii) should cloth be woven on handlooms or power looms? (iii) should subsidised grain be given to poor families?
Hint
What, how or for whom.
Answer
(i) what to produce (ii) how to produce (iii) for whom to produce
Q4 · 3 marks · Short answerHarder board level
Give three reasons why resources must be used efficiently.
Hint
Think of wants, output and the future.
Answer
To satisfy more wants from limited resources; to raise output and incomes and reduce poverty; to conserve non-renewable resources for future generations and reduce pollution (any three).
Q5 · 3 marks · Short answerHOTS / competency
"Whether an economy is capitalist, socialist or mixed, it must solve the same central problems." Explain.
Hint
Where do the problems come from?
Answer
The problems arise from scarcity, which every economy faces: resources are limited and have alternative uses. So each economy must decide what, how and for whom to produce; only the method differs: price mechanism in capitalism, central planning in socialism and both in a mixed economy.

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.Which problem is about the technique of production?Show answer
How to produce.
2.Which problem is about distribution?Show answer
For whom to produce.
3.Give an example of a capital-intensive technique.Show answer
A power loom factory.
4.Give an example of a labour-intensive technique.Show answer
Handloom weaving.
5.Which economy uses central planning?Show answer
A socialist economy.
6.What is efficient use of resources?Show answer
Getting the maximum output from given resources with the least waste.

Efficient Use of Resources and the Three Central Problems of an Economy: frequently asked questions

Is drip irrigation capital-intensive?

It uses equipment but its purpose in the chapter is to show saving of water, an example of efficient use.

Can an economy ignore the third problem?

No. Someone must receive the output, so the distribution question always arises.

Why does a mixed economy use both methods?

Some decisions are left to the market and others are planned or regulated by the government.