WGU D089 PRINCIPLES OF ECONOMICS OBJECTIVE ASSESSMENT EXAM–
QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED ANSWERS | PLUS
RATIONALES | DOWNLOAD AND PASS | LATEST EXAM UPDATE 2026/2027
Core Domains
1. Microeconomics Fundamentals (Supply, Demand, and Market Equilibrium)
2. Macroeconomic Concepts (GDP, Inflation, and Unemployment)
3. Market Structures and Firm Behavior
4. Fiscal and Monetary Policy
5. International Trade and Finance
6. Economic Growth and Business Cycles
7. Consumer and Producer Theory
8. Labor Markets and Resource Allocation
Introduction
This comprehensive objective assessment is designed to evaluate your mastery of
core principles in microeconomics and macroeconomics. It measures your
understanding of fundamental theories, the ability to apply economic models to
analyze market behavior, and the skill to evaluate the impact of government
policies on the economy. The exam utilizes a multiple-choice and scenario-based
structure to assess both foundational knowledge and higher-order critical thinking.
Emphasis is placed on real-world application and decision-making, preparing you
to interpret economic events and make informed judgments in a professional
context. Success requires a solid grasp of economic terminology, models, and their
practical implications for businesses and policymakers.
SECTION ONE: QUESTIONS 1–100
1. In a market economy, what primarily determines the distribution of goods
and services?
,A. Government planning
B. Centralized resource allocation
C. Prices and the profit motive
D. Equal distribution based on need
🟢C
🔴 Explanation: In a market economy, prices and the profit motive are the
primary drivers of resource allocation. They signal relative scarcity and
abundance, coordinating the decisions of buyers and sellers.
2. Which of the following best defines the economic concept of "opportunity
cost"?
A. The total cost of producing one more unit of a good
B. The sum of all explicit costs incurred by a firm
C. The value of the next-best alternative that is forgone when making a choice
D. The cost incurred to prevent a loss
🟢C
🔴 Explanation: Opportunity cost is fundamentally about trade-offs. It is the value
of the most desirable alternative that must be given up to engage in an activity,
not just the monetary expense.
3. A shift to the right in the demand curve for a normal good could be caused
by:
A. A decrease in consumer income
B. An increase in the price of a substitute good
C. A decrease in the price of the good itself
D. An increase in the price of a complementary good
🟢B
🔴 Explanation: For a normal good, an increase in the price of a substitute good
makes the original good relatively more attractive, increasing demand and
shifting the demand curve to the right.
,4. If the price elasticity of demand for a product is -2.5, a 10% increase in price
will lead to a:
A. 4% decrease in quantity demanded
B. 25% decrease in quantity demanded
C. 0.25% decrease in quantity demanded
D. 25% increase in quantity demanded
🟢B
🔴 Explanation: Price elasticity of demand measures the responsiveness of
quantity demanded to a price change. A value of -2.5 indicates that a 1% change
in price leads to a 2.5% change in quantity demanded in the opposite direction.
Therefore, a 10% price increase leads to a 25% decrease.
5. In a perfectly competitive market, firms are price takers because:
A. They have significant market power
B. They produce a differentiated product
C. Each firm produces a negligible fraction of total market output
D. There are high barriers to entry
🟢C
🔴 Explanation: Perfect competition is characterized by a large number of small
firms, each producing an identical product. Because each firm's output is a tiny
fraction of the total market, they have no influence over the market price.
6. Which of the following is a characteristic of a monopoly?
A. Many firms
B. Perfect substitutes for the product
C. Significant barriers to entry
D. Free entry and exit
🟢C
🔴 Explanation: A monopoly is defined by a single seller in a market with high
, barriers to entry that prevent competition. These barriers can be legal,
technological, or related to resource ownership.
7. The marginal cost curve intersects the average total cost curve at the point
where:
A. Average total cost is at its minimum
B. Average total cost is at its maximum
C. Marginal cost is at its minimum
D. Marginal cost is at its maximum
🟢A
🔴 Explanation: This is a fundamental relationship in cost theory. When marginal
cost (MC) is below average total cost (ATC), ATC falls. When MC is above ATC, ATC
rises. Therefore, MC must intersect ATC at ATC's minimum point.
8. Gross Domestic Product (GDP) is best defined as the:
A. Total expenditure on all final goods and services produced within a country in a
given period
B. Total income earned by citizens of a country, regardless of where they are
located
C. Total value of all transactions in an economy
D. The market value of all intermediate goods produced in a year
🟢A
🔴 Explanation: GDP measures the total market value of all final goods and
services produced within a country's borders during a specific time frame. It
focuses on final goods to avoid double counting intermediate goods.
9. Which of the following would NOT be counted as part of the U.S. GDP?
A. A new car manufactured in the U.S. and sold to a foreign buyer
B. The purchase of a new house in the U.S.
C. The purchase of a 10-year-old existing house in the U.S.
D. A computer chip produced in the U.S. and used in a new U.S. computer
QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED ANSWERS | PLUS
RATIONALES | DOWNLOAD AND PASS | LATEST EXAM UPDATE 2026/2027
Core Domains
1. Microeconomics Fundamentals (Supply, Demand, and Market Equilibrium)
2. Macroeconomic Concepts (GDP, Inflation, and Unemployment)
3. Market Structures and Firm Behavior
4. Fiscal and Monetary Policy
5. International Trade and Finance
6. Economic Growth and Business Cycles
7. Consumer and Producer Theory
8. Labor Markets and Resource Allocation
Introduction
This comprehensive objective assessment is designed to evaluate your mastery of
core principles in microeconomics and macroeconomics. It measures your
understanding of fundamental theories, the ability to apply economic models to
analyze market behavior, and the skill to evaluate the impact of government
policies on the economy. The exam utilizes a multiple-choice and scenario-based
structure to assess both foundational knowledge and higher-order critical thinking.
Emphasis is placed on real-world application and decision-making, preparing you
to interpret economic events and make informed judgments in a professional
context. Success requires a solid grasp of economic terminology, models, and their
practical implications for businesses and policymakers.
SECTION ONE: QUESTIONS 1–100
1. In a market economy, what primarily determines the distribution of goods
and services?
,A. Government planning
B. Centralized resource allocation
C. Prices and the profit motive
D. Equal distribution based on need
🟢C
🔴 Explanation: In a market economy, prices and the profit motive are the
primary drivers of resource allocation. They signal relative scarcity and
abundance, coordinating the decisions of buyers and sellers.
2. Which of the following best defines the economic concept of "opportunity
cost"?
A. The total cost of producing one more unit of a good
B. The sum of all explicit costs incurred by a firm
C. The value of the next-best alternative that is forgone when making a choice
D. The cost incurred to prevent a loss
🟢C
🔴 Explanation: Opportunity cost is fundamentally about trade-offs. It is the value
of the most desirable alternative that must be given up to engage in an activity,
not just the monetary expense.
3. A shift to the right in the demand curve for a normal good could be caused
by:
A. A decrease in consumer income
B. An increase in the price of a substitute good
C. A decrease in the price of the good itself
D. An increase in the price of a complementary good
🟢B
🔴 Explanation: For a normal good, an increase in the price of a substitute good
makes the original good relatively more attractive, increasing demand and
shifting the demand curve to the right.
,4. If the price elasticity of demand for a product is -2.5, a 10% increase in price
will lead to a:
A. 4% decrease in quantity demanded
B. 25% decrease in quantity demanded
C. 0.25% decrease in quantity demanded
D. 25% increase in quantity demanded
🟢B
🔴 Explanation: Price elasticity of demand measures the responsiveness of
quantity demanded to a price change. A value of -2.5 indicates that a 1% change
in price leads to a 2.5% change in quantity demanded in the opposite direction.
Therefore, a 10% price increase leads to a 25% decrease.
5. In a perfectly competitive market, firms are price takers because:
A. They have significant market power
B. They produce a differentiated product
C. Each firm produces a negligible fraction of total market output
D. There are high barriers to entry
🟢C
🔴 Explanation: Perfect competition is characterized by a large number of small
firms, each producing an identical product. Because each firm's output is a tiny
fraction of the total market, they have no influence over the market price.
6. Which of the following is a characteristic of a monopoly?
A. Many firms
B. Perfect substitutes for the product
C. Significant barriers to entry
D. Free entry and exit
🟢C
🔴 Explanation: A monopoly is defined by a single seller in a market with high
, barriers to entry that prevent competition. These barriers can be legal,
technological, or related to resource ownership.
7. The marginal cost curve intersects the average total cost curve at the point
where:
A. Average total cost is at its minimum
B. Average total cost is at its maximum
C. Marginal cost is at its minimum
D. Marginal cost is at its maximum
🟢A
🔴 Explanation: This is a fundamental relationship in cost theory. When marginal
cost (MC) is below average total cost (ATC), ATC falls. When MC is above ATC, ATC
rises. Therefore, MC must intersect ATC at ATC's minimum point.
8. Gross Domestic Product (GDP) is best defined as the:
A. Total expenditure on all final goods and services produced within a country in a
given period
B. Total income earned by citizens of a country, regardless of where they are
located
C. Total value of all transactions in an economy
D. The market value of all intermediate goods produced in a year
🟢A
🔴 Explanation: GDP measures the total market value of all final goods and
services produced within a country's borders during a specific time frame. It
focuses on final goods to avoid double counting intermediate goods.
9. Which of the following would NOT be counted as part of the U.S. GDP?
A. A new car manufactured in the U.S. and sold to a foreign buyer
B. The purchase of a new house in the U.S.
C. The purchase of a 10-year-old existing house in the U.S.
D. A computer chip produced in the U.S. and used in a new U.S. computer
