0455

Scarcity, Choice & Opportunity Cost

Basic Economic Problem · 3 question types

Exam Frequency Analysis

Past paper frequency (2018 to 2024)

This topic accounts for approximately 14% of your exam marks.

stable
High
Stable14%

Opportunity cost and scarcity definitions appear on nearly every paper; consistently 4 to 6 marks in Q1 Part A context questions.

The basic economic problem is that resources are limited (finite) while human are unlimited (infinite). Society cannot produce everything everyone wants, so it must choose how to use the resources it does have.

This single idea sits underneath every other concept in the syllabus. Whenever an exam question asks about prices, government spending, exchange rates or trade, the underlying tension is the same: limited resources are being allocated between competing uses.

A useful way to phrase it for the exam: the economy must answer three questions.

  • What to produce.
  • How to produce it.
  • For whom to produce it.

These are sometimes called the three fundamental economic questions. They appear because resources cannot stretch to cover every possible want, so an economy is constantly choosing on each.

Diagram of the three basic economic questions: scarce resources are allocated to producers (what and how to produce), then output is distributed to households (who gets what)
Source: Resource Allocation Decisions by Save My Exams