Q: A utility function is given by $$U = 3x_1 + 2x_2 + 8x_3$$, where $$x_1 is $$servings of meat, $$x_2 is $$servings of broccoli, and $$x_3 is $$servings of ice cream. If a person consumes 1 serving of meat, 2 servings of broccoli, and 2 servings of ice cream, what is their total utility?

$$U = (3 \times 1) + (2 \times 2) + (8 \times 2) = 3 + 4 + 16 = 23$$

Q: A consumer faces the following utility from consuming concert tickets (C) and movie tickets (M): $$U = 10C + 5M. If $$the consumer can buy 2 concert tickets and 4 movie tickets, what is the total utility?

$$U = 10 \times 2 + 5 \times 4 = 20 + 20 = 40$$

Question 1

Which of the following best describes the principle of revealed preference?

Accepted Answer

It states that people's preferences can be determined by observing their choices and behavior.

Question 2

Suppose a consumer has $$120 to spend. Movie tickets cost 15 $$each and concert tickets cost $30 each. Which equation represents the consumer's budget constraint?

Accepted Answer

$$120 = 15M + 30C$$

Question 3

If the marginal utility of the 4th scoop of ice cream is negative, what does this imply about the consumer's satisfaction?

Accepted Answer

Consuming the 4th scoop decreases the consumer's total utility.

Question 4

A utility function is given by $$U = 3x_1 + 2x_2 + 8x_3$$, where $$x_1 is $$servings of meat, $$x_2 is $$servings of broccoli, and $$x_3 is $$servings of ice cream. If a person consumes 1 serving of meat, 2 servings of broccoli, and 2 servings of ice cream, what is their total utility?

Accepted Answer

$$U = (3 	imes 1) + (2 	imes 2) + (8 	imes 2) = 3 + 4 + 16 = 23$$

Question 5

Which of the following statements best describes the principle of diminishing marginal utility?

Accepted Answer

The additional utility gained from consuming successive units of a good or service tends to decrease.

Question 6

If a consumer's income increases from $$120 to 180$$, with prices of goods unchanged, what happens to the budget constraint?

Accepted Answer

The budget constraint shifts outward, allowing more bundles to be affordable.

Question 7

Suppose the price of a movie ticket decreases from $$15 to 10$$, while income and the price of concert tickets remain unchanged. What is the effect on the budget constraint?

Accepted Answer

The budget constraint rotates outward, increasing the maximum number of movie tickets that can be purchased.

Question 8

A rational consumer is choosing between two goods, X and Y, with prices $$P_X$$ and $$P_Y. $$The consumer maximizes utility when:

Accepted Answer

$$\frac{MU_X}{P_X} = \frac{MU_Y}{P_Y}$$

Question 9

Which of the following is NOT a feature of utility as described in microeconomics?

Accepted Answer

Utility is typically comparable across individuals.

Question 10

If a consumer's income is $$96, the price of a movie ticket is 8$$, and the price of a concert ticket is $16, what is the equation for the budget constraint?

Accepted Answer

$$96 = 8M + 16C$$

Question 11

Which of the following best illustrates the concept of 'conspicuous consumption'?

Accepted Answer

Buying an expensive car to impress others, even if a cheaper car would suffice.

Question 12

A consumer faces the following utility from consuming concert tickets (C) and movie tickets (M): $$U = 10C + 5M. If $$the consumer can buy 2 concert tickets and 4 movie tickets, what is the total utility?

Accepted Answer

$$U = 10 	imes 2 + 5 	imes 4 = 20 + 20 = 40$$

Question 13

If the price of a movie ticket increases while income and the price of concert tickets remain unchanged, what happens to the set of feasible consumption bundles?

Accepted Answer

The set of feasible bundles decreases, and the budget constraint rotates inward.

Question 14

Which of the following is an example of altruism as it relates to utility maximization?

Accepted Answer

A person donates money to charity and feels happier because others benefit.

Question 15

Suppose a consumer's utility from two goods, A and B, is given by $$U = 4A + 6B. If $$the consumer consumes 3 units of A and 2 units of B, what is the marginal utility of consuming one more unit of B?

Accepted Answer

6

Question 16

Which of the following scenarios best demonstrates the concept of reciprocity in utility maximization?

Accepted Answer

Rewarding a friend for helping you move by helping them in return.

Question 17

If a consumer's income decreases by 50%, what happens to their budget constraint?

Accepted Answer

The budget constraint shifts inward, reducing the set of affordable bundles.

Question 18

Which of the following is a correct statement about utility maximization?

Accepted Answer

Individuals maximize utility by choosing the bundle of goods and services that yields the highest possible total utility within their budget constraint.

Question 19

If a consumer's preferences are influenced by what others think of their purchases, this is an example of:

Accepted Answer

Outside perception affecting utility.

Consumer Behaviour: Utility, Marginal Utility, and Budget Constraints

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