Basic Economic Problem · 3 question types
Past paper frequency (2018 to 2024)
This topic accounts for approximately 14% of your exam marks.
Opportunity cost and scarcity definitions appear on nearly every paper; consistently 4 to 6 marks in Q1 Part A context questions.
Scarcity is the situation in which resources are limited while human wants are unlimited. Because wants exceed available resources, society cannot satisfy them all.
Scarcity is the foundation of the IGCSE syllabus. Almost every other concept (price, demand, opportunity cost, market failure, trade) follows from it.
The syllabus distinguishes two kinds of human desire.
Wants and needs together are unlimited: as soon as one is satisfied, another appears. Resources, by contrast, are limited, so wants always exceed what can be supplied.
This is the single most common slip in the exam.
| Scarcity | Shortage | |
|---|---|---|
| What it is | The fundamental economic problem: unlimited wants vs limited resources | A market situation: at a given price, quantity demanded exceeds quantity supplied |
| Time horizon | Permanent (a feature of the human condition) | Temporary (can be resolved by a price rise or extra supply) |
| Example | Oil is a scarce resource | A petrol station running out of fuel for an afternoon |
A definition of scarcity that just says "there is not enough" loses marks. Examiners want both halves: limited resources and unlimited wants.
Every economic agent has to make decisions because of scarcity.
| Agent | How scarcity affects their decisions |
|---|---|
| Consumers | Limited income forces them to choose which goods and services to buy. Higher prices for scarce items mean less can be bought. |
| Producers | Limited inputs (land, labour, capital) force them to choose what to make and how to make it. Scarcer inputs raise costs. |
| Workers | Time is limited, so workers choose which job to accept, how many hours to work, and how much training to invest in. |
| Government | A limited tax revenue forces a choice between spending on health, education, defence, transport, welfare and other priorities. |
Strong exam answers always tie the choice back to a specific group from this table, not "society in general".