Q: What is the formula for calculating the total net benefit of an option?

$$\text{Total Net Benefit} = \text{Total Benefit} - \text{Total Cost}$$

Question 1

Which of the following best describes optimization in economics?

Accepted Answer

Selecting the best feasible option by comparing total benefits and total costs.

Question 2

Suppose you are choosing between two apartments. Apartment A costs $$1,000/month and is 10 hours farther from work per month than Apartment B, which costs 1$$,200/month. If your opportunity cost of time is $15/hour, which apartment has the lower total cost?

Accepted Answer

Apartment B, because the higher rent is offset by the time savings.

Question 3

What is the formula for calculating the total net benefit of an option?

Accepted Answer

$$	ext{Total Net Benefit} = 	ext{Total Benefit} - 	ext{Total Cost}$$

Question 4

Marginal analysis is often preferred over total value analysis because:

Accepted Answer

It is faster, as it focuses only on the differences between alternatives.

Question 5

If the opportunity cost of your time increases from $$10/hour to 15/$$hour, what happens to the total cost of an apartment with a 20-hour monthly commute?

Accepted Answer

It increases by $100.

Question 6

Which of the following is NOT a step in marginal analysis?

Accepted Answer

Choose the alternative with the highest total cost.

Question 7

You are choosing between two apartments. Apartment East costs $$950/month and has a view you value at 25/$$month. Apartment West costs $$950/month but is 1 hour closer to the airport, and you value your time at 20/$$hour. Which apartment has the higher net benefit?

Accepted Answer

East, because the view is worth more than the time savings.

Question 8

If moving from Apartment West to East increases your benefit by $$25 but increases your cost by 40$$, what is the marginal net benefit?

Accepted Answer

$$-15$$

Question 9

Which principle is described by: 'An optimal feasible alternative has the property that moving to it makes you better off and moving away from it makes you worse off'?

Accepted Answer

Principle of Optimization at the Margin

Question 10

Suppose you value your time at $20/hour and you fly twice a month, each time requiring a round trip to the airport (4 trips total). If Apartment West is 30 minutes closer to the airport than East, what is the monthly time savings in dollars?

Accepted Answer

$$40$$

Question 11

If your willingness to pay for an apartment is $$950/month, and the apartment costs 950/$$month, what is your net benefit?

Accepted Answer

$$0$$

Question 12

Which of the following is a real-world example of opportunity cost in apartment selection?

Accepted Answer

The value of time spent commuting to work.

Question 13

If the marginal benefit of moving to a new apartment is $$25 and the marginal cost is 23$$, what is the marginal net benefit?

Accepted Answer

$$2$$

Question 14

Why do optimization using total value and optimization using marginal analysis give identical answers?

Accepted Answer

Because both methods ultimately compare the net benefit of each alternative.

Question 15

Which of the following is a necessary step in optimization using total value?

Accepted Answer

Translate all costs and benefits into common units.

Question 16

If the rent for an apartment is $$1,000/month and the commuting cost (including opportunity cost of time) is 300/$$month, what is the total cost?

Accepted Answer

$$1,300$$

Question 17

Which of the following best illustrates a trade-off in the context of apartment selection?

Accepted Answer

Choosing an apartment with a higher rent but a shorter commute.

Question 18

If your job responsibilities change and you now travel to the airport only once a month, reducing your commuting cost by $$20, but the apartment with the view still provides a 25 $$benefit, which apartment should you choose?

Accepted Answer

The apartment with the view, because the net benefit is now positive.

Question 19

Which of the following is NOT a reason why it can be difficult to make the best choice in optimization?

Accepted Answer

Having perfect information.

Question 20

If the price per square foot of apartments decreases as you move farther from the city center, what economic principle does this illustrate?

Accepted Answer

Trade-off between location and cost.

Optimization in Microeconomics: Choosing the Best Feasible Option

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