1.1 Scarcity, choice and opportunity cost
- Syllabus
- 9708–2026–2027
- Topic
- 1.1
- Level
- AS
Learning objectives
1.1.1Scarcity problem• Fundamental economic problem of scarcity1.1.2Economic choice• Need to make choices at all levels (individuals, firms, governments)1.1.3Opportunity cost• Nature and definition of opportunity cost, arising from choices1.1.4Resource allocation questions• Basic questions of resource allocation- what to produce- how to produce- for whom to produce
Scarcity means resources cannot satisfy every human want
Scarcity is the fundamental economic problem: wants are unlimited relative to the finite resources available to satisfy them.
Because land, labour, capital, time and enterprise have alternative uses, choosing one use prevents some other use. Scarcity exists for individuals, firms and governments, even when a particular good is abundant.
A government with a fixed health budget cannot fund every hospital, treatment and prevention programme at once.
Scarcity does not mean a resource is rare or that everyone is poor; it means supply is limited relative to competing wants.
Economic choice allocates scarce resources among competing uses
Economic choice is the decision about which scarce resource use to pursue. Every choice selects one option and leaves at least one alternative less funded or forgone.
Individuals choose consumption or saving, firms choose products and methods, and governments choose public priorities. The best decision depends on objectives, constraints and expected consequences.
A firm can use a factory line for bicycles or electric scooters; producing more of one leaves less capacity for the other.
Choice is not limited to buying goods: deciding not to act, to save or to regulate is also an allocation decision.
Opportunity cost is the next-best alternative forgone
Opportunity cost is the value of the next-best alternative given up when a choice is made. It is forward-looking and depends on the alternatives actually available.
The chosen option is not itself the opportunity cost. Identify the best rejected use of the same scarce resource, then compare its benefit with the chosen use.
If a student spends Saturday revising instead of working a paid shift, the opportunity cost is the wages from the best available shift, not the revision itself.
Opportunity cost is not always a cash payment and is not the sum of every rejected option.
Resource allocation asks what to produce, how and for whom
Scarcity forces every economy to allocate resources by answering three linked questions: what output to produce, how to produce it and for whom the resulting goods and services are produced.
| Question | Decision being made | Example |
|---|---|---|
| What to produce? | which goods/services and how much of each | more preventive healthcare or more hospital treatment |
| How to produce? | which combination of land, labour and capital, and which technique | labour-intensive care or more automated equipment |
| For whom to produce? | how output is distributed and who can access it | allocation by income, eligibility, need or another rule |
The answers are connected. Choosing a larger quantity of one output uses resources that cannot serve another purpose; choosing a production method affects costs and resource use; choosing who receives output affects distribution. Each answer therefore embodies choice and opportunity cost.
These are the allocation questions, not one fixed set of answers. Market, planned and mixed economies answer them in different ways; those mechanisms belong to section 1.4.