# ECON 213 Quiz 9 Liberty University Solution

Question 1

When marginal revenue equals marginal cost:

Question 2

Dave’s Batting Cages is located in Boston, Massachusetts. During the first year of operation, Dave’s Batting Cages incurred many costs. In that year, Dave spent \$5,000 on labor, \$2,000 on maintenance, and \$1,000 on electricity. Dave took out a loan to open his business, in which he would have earned \$1,500, and his previous job, which he could get back at any time, paid him \$50,000. If Dave’s Batting Cages received \$80,000 in revenues, what were the economics profits?

Question 3

An example of an implicit cost is:

Question 4

Total revenue minus total cost equals:

Question 5

If the shortrun market supply curve and the demand curve intersect above the longrun market supply curve, firms will experience _________ economic profits, meaning the price is _________ the minimum point on the average total cost curve.

Question 6

If the shortrun supply curve and the demand curve intersect below the longrun supply curve, firms will experience _________ economic profits, meaning the price is _________ the minimum point on the average total cost curve.

Question 7

In the short run, a competitive firm may choose to operate at a loss:

Question 8

Which of the following lists the three main characteristics of a competitive market?

Question 9

If firms in a competitive market are making zero economic profits, the longrun market supply curve:

Question 10

The accompanying table represents the quantity produced, the total revenue, and the total cost of a firm operating in a perfectly competitive market. Refer to this table to answer the questions that follow.

Assuming that all firms have the same cost structure, the price is:

Question 11

According to the accompanying figure, the longrun market supply curve would be a horizontal line:

Question 12

Kimberly owns a cupcake shop in Newport Beach, California. The market for cupcakes is very competitive. At Kimberly’s current production level, her marginal cost is \$25 and her marginal revenue is \$29. To maximize profits, Kimberly should:

Question 13

According to the accompanying figure, if the price is \$5, the firm is making

Question 14

Refer to the accompanying graph to answer the questions that follow.

If the firm is maximizing profits, total cost is represented by the area:

Question 15

An example of an explicit cost is:

Question 16

Refer to the accompanying figure. A firm would shut down in the short run if the price is:

Question 17

The accompanying table represents the quantity produced, the total revenue, and the total cost of a firm operating in a perfectly competitive market. Refer to this table to answer the questions that follow.

Profits are maximized when producing:

Question 18

When talking about economic profits in a perfectly competitive market, the difference between the long run and the short run is that, in the short run, firms:

Question 19

A farmer’s market is close to being a perfectly competitive market. Which characteristic of a perfectly competitive market do most farmer’s markets violate?

Question 20

If Nicole’s KnickKnacks is a perfectly competitive firm and is making zero economic profits: