Question 1
A monotonic transformation preserves the exact same ranking of consumer preferences.
True
False

The IIT Madras BS Managerial Economics (Managerial Economics) Quiz 2 paper sat on 16 Aug 2026, in the May 2026 term: 28 questions for 25 marks in 120 minutes. Every question is below with its answer. Take it as a timed mock test to be marked, or read it through first.
A monotonic transformation preserves the exact same ranking of consumer preferences.
True
False
Correct answer
True
If the price elasticity of demand for a product is greater than one, a price increase will always increase total revenue for the seller
True
False
Correct answer
False
If demand for a good is perfectly inelastic, consumers bear none of the burden of a per-unit tax placed on the good
True
False
Correct answer
False
First degree price discrimination is the practice of charging each customer her reservation price.
True
False
Correct answer
True
The cross price elasticity of demand of substitutes is positive.
True
False
Correct answer
True
A good with an income elasticity of demand greater than zero is classified as a normal good
True
False
Correct answer
True
Equilibrium quantity (in millions) in the market before the subsidy will be Q*= _______
Correct answer: 13
Equilibrium price in the market before the subsidy will be P*= _______
Correct answer: 14
New equilibrium quantity after the subsidy QS= _________
Correct answer: 14
Price that buyers pay now will be PB= ________
Correct answer: 12
Price that the producers receive per unit will be PS= _________
Correct answer: 17
Total cost (in millions $) to the government will be _______
Correct answer: 42
Suppose the government acts weirdly and removes the subsidy to impose a tax of $6 excise tax per unit to producers New equilibrium quantity (in millions $) after the incidence of tax Qt= ________
Correct answer: 11
Suppose the government acts weirdly and removes the subsidy to impose a tax of $6 excise tax per unit to producers The price that buyers pay now will be PB = _______
Correct answer: 18
Suppose the government acts weirdly and removes the subsidy to impose a tax of $6 excise tax per unit to producers
Price that seller receives per unit will be PS= _______
Correct answer: 12
Suppose a monopolist has a constant marginal cost MC = 2 and faces the demand curve P = 20 − Q. There are no fixed costs.
Based on the above data, answer the given subquestions.
What will be the price charged by this monopolist? P*= _______
Correct answer: 11
Suppose a monopolist has a constant marginal cost MC = 2 and faces the demand curve P = 20 − Q. There are no fixed costs.
Based on the above data, answer the given subquestions.
Suppose price discrimination is not allowed (or is not possible). How large will the producer surplus be? PS= _______
Correct answer: 81
Suppose a monopolist has a constant marginal cost MC = 2 and faces the demand curve P = 20 − Q. There are no fixed costs.
Based on the above data, answer the given subquestions.
Suppose the firm can engage in perfect first-degree price discrimination. What is the increase in producer surplus when a monopolist switches from uniform pricing to perfect first-degree price discrimination? PS= ______
Correct answer: 81
Based on the above data, answer the given subquestions.
Suppose that both Air India and Indigo charge a price of $300 each for a round-trip ticket between Kolkata and Delhi. What is the price elasticity of demand for Indigo flights between Kolkata and Delhi? (please ignore the sign)
Correct answer: 1
Based on the above data, answer the given subquestions.
What is the market-level price elasticity of demand for air travel between Kolkata and Delhi when both airlines charge a price of $300? (please ignore the sign)
Correct answer: 0.5
Based on the above data, answer the given subquestions.
M weakly dominates T
True
False
Correct answer
True
Based on the above data, answer the given subquestions.
B strictly dominates M
True
False
Correct answer
True
A consumer purchases two goods, food and clothing. He has the utility function U(x,y) = xy + 10x, where x denotes the amount of food consumed and y the amount of clothing. Based on the above data, answer the given subquestions.
Choose the correct alternative.
MUx is linear in x
MUx is linear in y
MUx includes both x and y terms
MUx is a fixed value
Correct answer
MUx is linear in y
A consumer purchases two goods, food and clothing. He has the utility function U(x,y) = xy + 10x, where x denotes the amount of food consumed and y the amount of clothing. Based on the above data, answer the given subquestions.
Choose the correct alternative
MUy is linear in x
MUy is linear in y
MUy includes both x and y terms
MUy is a fixed value
Correct answer
MUy is linear in x
A consumer purchases two goods, food and clothing. He has the utility function U(x,y) = xy + 10x, where x denotes the amount of food consumed and y the amount of clothing. Based on the above data, answer the given subquestions.
Suppose the consumer's income is $100, and the price of food is $1 and clothing is $2.
What is the slope of the budget line (ignore sign) ________
Correct answer: 0.5
A consumer purchases two goods, food and clothing. He has the utility function U(x,y) = xy + 10x, where x denotes the amount of food consumed and y the amount of clothing. Based on the above data, answer the given subquestions.
Suppose the consumer's income is $100, and the price of food is $1 and clothing is $2.
What is the optimal level of clothing? _______
Correct answer: 20
A consumer purchases two goods, food and clothing. He has the utility function U(x,y) = xy + 10x, where x denotes the amount of food consumed and y the amount of clothing. Based on the above data, answer the given subquestions.
Suppose the consumer's income is $100, and the price of food is $1 and clothing is $2.
What is the optimal level of food? ________
Correct answer: 60
A consumer purchases two goods, food and clothing. He has the utility function U(x,y) = xy + 10x, where x denotes the amount of food consumed and y the amount of clothing. Based on the above data, answer the given subquestions.
Suppose the consumer's income is $100, and the price of food is $1 and clothing is $2.
What is the utility of the optimal bundle? ________
Correct answer: 1800