DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM
UPDATE 2026/2027
*CORE DOMAINS*
*Microeconomic Foundations*
*Macroeconomic Aggregates and Indicators*
*Market Structures and Equilibrium*
*Fiscal and Monetary Policy*
*International Trade and Finance*
*Labor Economics and Human Capital*
*Economic Growth Models*
*Public Sector Economics and Externalities*
*INTRODUCTION*
*The ECON 2030 Final Exam assessment is designed to provide a comprehensi
SECTION ONE: QUESTIONS 1–100
1. Which of the following best describes the law of diminishing marginal utility?
,A. Total utility decreases as more of a good is consumed.
B. The additional satisfaction from consuming one more unit of a good declines as
consumption increases.
C. Consumers will always buy more of a good when its price falls.
D. Marginal utility is always negative for luxury goods.
🟢 B. The additional satisfaction from consuming one more unit of a good declines as
consumption increases.
🔴 Explanation: The law of diminishing marginal utility states that as a person consumes
more of a specific commodity, the utility or satisfaction derived from each additional unit
decreases.
2. In a perfectly competitive market, what is the relationship between price (P),
marginal revenue (MR), and average revenue (AR)?
A. P > MR = AR
B. P = MR = AR
C. P < MR = AR
D. P = MR > AR
🟢 B. P = MR = AR
,🔴 Explanation: Because firms in perfect competition are price takers, they can sell any
amount at the market price, meaning the revenue from each additional unit (MR) and the
average revenue (AR) both equal the market price.
3. If the cross-price elasticity of demand between Good X and Good Y is -2.5, these
goods are:
A. Substitutes
B. Inferior goods
C. Complements
D. Normal goods
🟢 C. Complements
🔴 Explanation: A negative cross-price elasticity indicates that as the price of one good
rises, the demand for the other falls, which characterizes complementary goods.
4. An economy is operating at a point inside its Production Possibilities Frontier (PPF).
This situation most likely represents:
A. Economic growth
B. Full employment of resources
, C. Underutilization of resources or unemployment
D. An unattainable production level
🟢 C. Underutilization of resources or unemployment
🔴 Explanation: Points inside the PPF indicate that the economy is not using all available
resources efficiently or is experiencing unemployment.
5. Which of the following is a "shifter" of the supply curve rather than a movement
along the curve?
A. A change in the price of the product itself
B. A change in consumer income
C. An improvement in production technology
D. A change in consumer preferences
🟢 C. An improvement in production technology
🔴 Explanation: Changes in technology, input prices, or the number of sellers shift the
supply curve, whereas a change in the product's own price causes a movement along the
curve.
6. If the government imposes a price ceiling below the equilibrium price, what is the
most likely result?