Module M01 Quiz: Introduction: Scarcity, Choice, and the Economic Method
25 questions · Introductory · Mix of multiple choice, calculation, and short answer
How to use
Attempt each question before clicking Show Answer. For calculation questions, write out your working first.
Question 1
Lesson L01 · Scarcity Choice
What is the fundamental economic problem?
Type: Multiple Choice
- A) Unlimited wants vs. limited resources
- B) Government intervention in markets
- C) Technological advancement
- D) Global trade imbalances
Show Answer
Answer: A) Unlimited wants vs. limited resources
Economics studies how societies allocate scarce resources to satisfy unlimited wants.
Question 2
Lesson L01 · Scarcity Choice
Which of these best describes opportunity cost?
Type: Multiple Choice
- A) The monetary price of a good
- B) The value of the next best alternative foregone
- C) The total cost of production
- D) The profit margin on a product
Show Answer
Answer: B) The value of the next best alternative foregone
Opportunity cost includes all sacrificed alternatives, not just monetary costs.
Question 3
Lesson L01 · Intro
Calculate the opportunity cost if choosing university over a $50k/year job for 3 years.
Type: Calculation
Show Answer
Answer: The explicit cost is $150k in lost wages (3 x $50k). Implicit costs like experience are harder to quantify.
scarcity-choice
Question 4
Lesson L01 · Intro
Briefly explain why 'there\'s no such thing as a free lunch'.
Type: Short Answer
Show Answer
Answer: Even 'free' items require resources that could have been used elsewhere, creating opportunity costs.
scarcity-choice
Question 5
Lesson L01 · Scarcity Choice
Which illustrates the economic problem?
Type: Multiple Choice
- A) A factory choosing between cars and trucks
- B) A student selecting a Netflix show
- C) A government taxing cigarettes
- D) All of the above
Show Answer
Answer: D) All of the above
All choices involve allocating scarce resources (time, capital, labor) between alternatives.
Question 6
Lesson L02 · Ppf
What does the PPF illustrate?
Type: Multiple Choice
- A) Market equilibrium prices
- B) Possible production combinations given resources
- C) Consumer preferences
- D) Government budget allocations
Show Answer
Answer: B) Possible production combinations given resources
The PPF shows maximum output combinations of two goods an economy can produce.
Question 7
Lesson L02 · Ppf
Why is the PPF bowed outward?
Type: Multiple Choice
- A) Due to increasing opportunity costs
- B) Because of inflation
- C) It represents consumer surplus
- D) It shows diminishing returns to scale
Show Answer
Answer: A) Due to increasing opportunity costs
Resources aren't perfectly adaptable, so producing more of one good requires ever-larger sacrifices of the other.
Question 8
Lesson L02 · Intro
If Australia can produce 100M tons iron ore or 10M wine bottles, calculate the opportunity cost of 5M more wine bottles.
Type: Calculation
Show Answer
Answer: Producing 5M wine bottles would require sacrificing 50M tons iron ore (100M/10M = 10M tons per 1M bottles).
ppf
Question 9
Lesson L02 · Intro
Explain why two countries trading can both consume beyond their PPFs.
Type: Short Answer
Show Answer
Answer: Specialization according to comparative advantage increases total output, allowing mutual gains from trade.
ppf
Question 10
Lesson L02 · Ppf
What shifts the PPF outward?
Type: Multiple Choice
- A) Improved technology
- B) Population growth
- C) Both a and b
- D) Changes in consumer preferences
Show Answer
Answer: C) Both a and b
Both technological progress and increased resources expand production possibilities.
Question 11
Lesson L03 · Trade
What determines comparative advantage?
Type: Multiple Choice
- A) Absolute productivity
- B) Opportunity costs
- C) Labor costs
- D) Government policy
Show Answer
Answer: B) Opportunity costs
Comparative advantage depends on relative opportunity costs, not absolute productivity.
Question 12
Lesson L03 · Trade
If Australia produces 100 ore or 50 cars, and China produces 80 ore or 100 cars, which country has comparative advantage in cars?
Type: Multiple Choice
- A) Australia
- B) China
- C) Neither
- D) Both
Show Answer
Answer: B) China
China's opportunity cost is lower (0.8 tons ore per car vs Australia's 2 tons).
Question 13
Lesson L03 · Intro
Calculate Australia's opportunity cost for 1 car in the above scenario.
Type: Calculation
Show Answer
Answer: 100 tons ore / 50 cars = 2 tons ore per car.
trade
Question 14
Lesson L03 · Intro
Why does Australia export iron ore instead of making steel domestically?
Type: Short Answer
Show Answer
Answer: Australia has comparative advantage in ore extraction; other countries can produce steel at lower opportunity cost.
trade
Question 15
Lesson L03 · Trade
Trade benefits come from:
Type: Multiple Choice
- A) Absolute advantage
- B) Comparative advantage
- C) Government subsidies
- D) Labor unions
Show Answer
Answer: B) Comparative advantage
Specializing according to comparative advantage maximizes total output.
Question 16
Lesson L04 · Economic Reasoning
Which is a positive statement?
Type: Multiple Choice
- A) The RBA should cut rates
- B) Inflation was 5.2% in 2023
- C) Taxes are too high
- D) We need more social programs
Show Answer
Answer: B) Inflation was 5.2% in 2023
Positive statements describe what is (testable), while normative statements prescribe what should be.
Question 17
Lesson L04 · Economic Reasoning
Identify the fallacy: 'My startup failed, therefore all small businesses fail'.
Type: Multiple Choice
- A) Post hoc
- B) Composition
- C) False cause
- D) Hasty generalization
Show Answer
Answer: D) Hasty generalization
It generalizes from one case to all cases without sufficient evidence.
Question 18
Lesson L04 · Intro
If 3 of 5 Sydney cafes succeed, what percentage fail?
Type: Calculation
Show Answer
Answer: 2 failures out of 5 = 40% failure rate.
economic-reasoning
Question 19
Lesson L04 · Intro
Why do economists use ceteris paribus?
Type: Short Answer
Show Answer
Answer: To isolate the effect of one variable by holding other factors constant.
economic-reasoning
Question 20
Lesson L04 · Economic Reasoning
Economic models are useful because they:
Type: Multiple Choice
- A) Perfectly predict the future
- B) Simplify complex reality
- C) Always include all variables
- D) Never require assumptions
Show Answer
Answer: B) Simplify complex reality
Models highlight key relationships by stripping away complexity.
Question 21
Lesson L05 · Market Economy
What do prices NOT do in a market economy?
Type: Multiple Choice
- A) Signal scarcity
- B) Ration goods
- C) Set production quotas
- D) Provide incentives
Show Answer
Answer: C) Set production quotas
Prices emerge from market interactions; quotas are government-imposed.
Question 22
Lesson L05 · Market Economy
The 'invisible hand' refers to:
Type: Multiple Choice
- A) Government regulation
- B) Market prices coordinating self-interest
- C) Corporate monopolies
- D) Central planning
Show Answer
Answer: B) Market prices coordinating self-interest
Adam Smith's metaphor for how individual actions collectively benefit society via price signals.
Question 23
Lesson L05 · Intro
If demand increases by 20% and price rises by 10%, calculate the new quantity demanded (original Q=100).
Type: Calculation
Show Answer
Answer: 20% increase on 100 = 120 units, assuming demand curve shifts right.
market-economy
Question 24
Lesson L05 · Intro
How do Uber surge prices demonstrate market coordination?
Type: Short Answer
Show Answer
Answer: Higher prices signal drivers to work more and riders to wait, balancing supply and demand.
market-economy
Question 25
Lesson L05 · Market Economy
Market failures occur when:
Type: Multiple Choice
- A) Prices fluctuate
- B) The invisible hand is imperfect
- C) Governments intervene
- D) All of the above
Show Answer
Answer: B) The invisible hand is imperfect
Externalities, monopolies, etc. prevent efficient outcomes despite price mechanisms.