AQA A-LEVEL ECONOMICS
MICROECONOMICS
Revision Booklet
What's in this booklet?
Comprehensive notes aligned to the AQA A-Level specification (Section 4.1)
• Concise notes on every spec topic
• Chain of analysis practice (start point → end point)
• Diagram practice questions with drawing space
• Daily vocabulary drills (15 terms per session)
• Multiple choice questions per topic
• Definition recall exercises
Work through each unit sequentially. Complete the activities before checking answers.
Name: _________________________________ Class: ____________ Target Grade: A
UNIT 1: Economic Methodology & The Economic
Problem
Spec ref: 4.1.1 | Topics: positive vs normative, scarcity, opportunity cost, PPF
1.1 Core Notes
Economic Methodology
Positive statement A factual claim that can be tested against evidence, e.g.
'Raising the minimum wage increases unemployment.'
Normative statement A value judgement about what ought to be, e.g. 'The
minimum wage should be higher.' Cannot be proven right or
wrong.
Economics as social Economics uses models and data to study behaviour, but
science unlike natural sciences, controlled experiments are rarely
possible. Ceteris paribus assumptions are critical.
Value judgement A moral or political opinion that shapes economic
recommendations. Different economists can agree on
evidence yet disagree on policy.
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Scarcity, Choice and Opportunity Cost
The fundamental economic problem is that resources are finite but human wants are unlimited.
This forces societies to make choices. Every choice involves an opportunity cost: the next best
alternative forgone.
Key Point: Factors of Production
Economists group scarce resources into four factors:
• Land — natural resources (including the environment as a scarce resource)
• Labour — human effort and skill
• Capital — man-made resources used in production (machinery, infrastructure)
• Enterprise — the ability to organise the other factors and take risk
Every production decision involves trading off the use of these factors across competing
uses.
Production Possibility Diagrams (PPF)
A PPF shows the maximum combinations of two goods an economy can produce given existing
resources and technology. Key conclusions:
• Points ON the frontier: productively efficient (no waste)
• Points INSIDE: inefficient (unemployed resources)
• Points OUTSIDE: currently unattainable
• Outward shift of PPF = long-run economic growth (better technology, more resources)
• NOT all points on the PPF are allocatively efficient — only the one that best reflects society's
preferences
Examiner Warning
Students often confuse productive efficiency with allocative efficiency on PPF questions.
Remember: every point on the PPF is productively efficient, but only one point reflects
the optimal allocation of resources for society. The examiners test this distinction
regularly in data response questions.
1.2 Diagram Practice
DIAGRAM PRACTICE: Production Possibility Frontier
→ Draw a PPF for an economy producing consumer goods and capital goods
→ Label: a point of productive efficiency, a point of inefficiency, a point that is unattainable
→ Show the effect of a technological improvement in capital goods production only
→ Show the effect of an increase in overall productive capacity (full outward shift)
→ Mark the opportunity cost of moving from one point to another with a dotted line
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1.3 Chain of Analysis Practice
CHAIN OF ANALYSIS PRACTICE
START: A government invests heavily in education and worker training
END: The PPF shifts outward, increasing the economy’s long-run productive potential
Build the chain of reasoning linking start to end. Each link must explain HOW and WHY.
PCC:
___________________________________________________________________________
Government invests heavily in education and worker training This leads to a increase in the
human capital as they will have higher skilled workers Leads to an increase in an increase
in labour productivity increases the efficiency of the labour force expands the PPC
PPC shifts outwards
CHAIN OF ANALYSIS PRACTICE
START: An economy discovers large new oil reserves
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END: Opportunity cost of producing other goods falls, enabling a new PPF
Build the chain of reasoning linking start to end. Each link must explain HOW and WHY.
Link 1: Economy discovers the oil reserves
Link 2: More resources within the economy
Link 3: Higher productive capacity
Link 4: Reduced scarcity of resources for oil
Link 5: Has a lower opportunity cost
Final point: New PPF outwards
1.4 Vocabulary Drill — Day 1 (15 Terms)
Term Your Definition
Positive statement Definition: Based upon facts that can be tested
Normative statement Definition: A value judgement assuming what will happen
Scarcity Definition: Limited resources but wants are unlimited
Opportunity cost Definition: The best next alternative when a choice is made
Ceteris paribus Definition: With all things being equal
Factors of production Definition: Resources to produce and provide G+S - CELL
Land Definition: Places like oil and water
Labour Definition: human like work
Capital Definition: man made goods e..g machines
Enterprise Definition: risk taking organisations
PPF Definition: multiple combinitations of 2 G+S in a economy
that can be provides with given resources + tech
Productive efficiency Definition:
Allocative efficiency Definition:
Economic growth Definition:
Trade-off Definition:
1.5 Multiple Choice Questions
MULTIPLE CHOICE QUESTIONS
1. Which of the following is a normative economic statement?
A) An increase in income tax reduces consumer spending.
B) The government should increase income tax to reduce inequality.
C) The UK unemployment rate rose by 0.2% last quarter.
D) A 10% rise in price led to a 15% fall in quantity demanded.
Answer: _______
2. An economy moves from inside its PPF to a point on its PPF. This indicates:
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