Microeconomics Midterm Exam: 150 Questions with
Answers and Rationales
This comprehensive examination covers the essential topics of microeconomics typically
assessed in a college-level midterm, including supply and demand, elasticity, consumer
behavior, production and costs, and market structures.
Section 1: Introduction to Economics and Basic Concepts
(Questions 1-20)
1. Economics is best defined as the study of:
A) How to make money in the stock market
B) How society manages its scarce resources
C) How to maximize business profits
D) How government controls the economy
Answer: B
Rationale: Economics is the social science that studies how individuals, businesses, and
societies allocate scarce resources to satisfy unlimited wants. Scarcity is the fundamental
problem that economics addresses .
2. Scarcity exists because:
A) Human wants exceed available resources
B) Resources are unlimited
C) Technology is always improving
D) People are greedy
,Answer: A
Rationale: Scarcity exists because human wants for goods and services exceed the limited
resources available to produce them. This is the fundamental economic problem .
3. The opportunity cost of an action is:
A) The monetary cost of the action
B) The value of the best alternative foregone
C) The total cost of all alternatives
D) The cost of production
Answer: B
Rationale: Opportunity cost is the value of the next best alternative that must be given up
when making a choice. It is the true cost of any decision .
4. Microeconomics focuses on:
A) The overall economy and aggregate variables
B) The behavior of individual economic units (firms, households, markets)
C) International trade and finance
D) Government fiscal and monetary policy
Answer: B
Rationale: Microeconomics studies the economic behavior of individual consumers, firms,
and markets. Macroeconomics studies the economy as a whole .
5. A rational decision maker takes an action only if:
A) The marginal benefit is greater than the marginal cost
B) The marginal cost is greater than the marginal benefit
C) The total benefit is greater than the total cost
D) The total cost is minimized
,Answer: A
Rationale: A rational decision maker compares marginal benefits and marginal costs. An
action is taken when the additional benefit exceeds the additional cost .
6. Which of the following is a normative economic statement?
A) The unemployment rate is 5%
B) Inflation is rising at 2% per year
C) The government should increase the minimum wage
D) GDP grew by 3% last year
Answer: C
Rationale: A normative statement expresses a value judgment about what ought to be. It
cannot be tested empirically. Positive statements describe facts and can be tested .
7. Which of the following is a positive economic statement?
A) The government should increase taxes
B) The minimum wage is too low
C) An increase in the price of gasoline will reduce the quantity demanded
D) We need to reduce income inequality
Answer: C
Rationale: Positive statements are objective and testable. The relationship between price
and quantity demanded is a positive statement that can be empirically verified .
8. The production possibilities frontier (PPF) illustrates:
A) The maximum output combinations an economy can produce with available
resources
B) The actual output of an economy
C) The demand for goods in an economy
D) The distribution of income
, Answer: A
Rationale: The PPF shows the maximum possible combinations of two goods that an
economy can produce given its resources and technology .
9. A point inside the PPF represents:
A) An efficient allocation of resources
B) An unattainable combination
C) Inefficient use of resources
D) Economic growth
Answer: C
Rationale: A point inside the PPF indicates that resources are not being used efficiently—
the economy could produce more of both goods .
10. Economic growth is illustrated on the PPF as:
A) A movement from inside to outside the PPF
B) An outward shift of the PPF
C) A movement from one point to another along the PPF
D) No change in the PPF
Answer: B
Rationale: Economic growth shifts the PPF outward, indicating the economy's increased
capacity to produce goods and services .
11. The law of increasing opportunity costs states that:
A) Opportunity costs decrease as production increases
B) Opportunity costs remain constant
C) As production of one good increases, the opportunity cost of producing additional
units increases
D) Opportunity costs are unrelated to production levels
Answers and Rationales
This comprehensive examination covers the essential topics of microeconomics typically
assessed in a college-level midterm, including supply and demand, elasticity, consumer
behavior, production and costs, and market structures.
Section 1: Introduction to Economics and Basic Concepts
(Questions 1-20)
1. Economics is best defined as the study of:
A) How to make money in the stock market
B) How society manages its scarce resources
C) How to maximize business profits
D) How government controls the economy
Answer: B
Rationale: Economics is the social science that studies how individuals, businesses, and
societies allocate scarce resources to satisfy unlimited wants. Scarcity is the fundamental
problem that economics addresses .
2. Scarcity exists because:
A) Human wants exceed available resources
B) Resources are unlimited
C) Technology is always improving
D) People are greedy
,Answer: A
Rationale: Scarcity exists because human wants for goods and services exceed the limited
resources available to produce them. This is the fundamental economic problem .
3. The opportunity cost of an action is:
A) The monetary cost of the action
B) The value of the best alternative foregone
C) The total cost of all alternatives
D) The cost of production
Answer: B
Rationale: Opportunity cost is the value of the next best alternative that must be given up
when making a choice. It is the true cost of any decision .
4. Microeconomics focuses on:
A) The overall economy and aggregate variables
B) The behavior of individual economic units (firms, households, markets)
C) International trade and finance
D) Government fiscal and monetary policy
Answer: B
Rationale: Microeconomics studies the economic behavior of individual consumers, firms,
and markets. Macroeconomics studies the economy as a whole .
5. A rational decision maker takes an action only if:
A) The marginal benefit is greater than the marginal cost
B) The marginal cost is greater than the marginal benefit
C) The total benefit is greater than the total cost
D) The total cost is minimized
,Answer: A
Rationale: A rational decision maker compares marginal benefits and marginal costs. An
action is taken when the additional benefit exceeds the additional cost .
6. Which of the following is a normative economic statement?
A) The unemployment rate is 5%
B) Inflation is rising at 2% per year
C) The government should increase the minimum wage
D) GDP grew by 3% last year
Answer: C
Rationale: A normative statement expresses a value judgment about what ought to be. It
cannot be tested empirically. Positive statements describe facts and can be tested .
7. Which of the following is a positive economic statement?
A) The government should increase taxes
B) The minimum wage is too low
C) An increase in the price of gasoline will reduce the quantity demanded
D) We need to reduce income inequality
Answer: C
Rationale: Positive statements are objective and testable. The relationship between price
and quantity demanded is a positive statement that can be empirically verified .
8. The production possibilities frontier (PPF) illustrates:
A) The maximum output combinations an economy can produce with available
resources
B) The actual output of an economy
C) The demand for goods in an economy
D) The distribution of income
, Answer: A
Rationale: The PPF shows the maximum possible combinations of two goods that an
economy can produce given its resources and technology .
9. A point inside the PPF represents:
A) An efficient allocation of resources
B) An unattainable combination
C) Inefficient use of resources
D) Economic growth
Answer: C
Rationale: A point inside the PPF indicates that resources are not being used efficiently—
the economy could produce more of both goods .
10. Economic growth is illustrated on the PPF as:
A) A movement from inside to outside the PPF
B) An outward shift of the PPF
C) A movement from one point to another along the PPF
D) No change in the PPF
Answer: B
Rationale: Economic growth shifts the PPF outward, indicating the economy's increased
capacity to produce goods and services .
11. The law of increasing opportunity costs states that:
A) Opportunity costs decrease as production increases
B) Opportunity costs remain constant
C) As production of one good increases, the opportunity cost of producing additional
units increases
D) Opportunity costs are unrelated to production levels
