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# Completing statements on perfect competition

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1. Complete the following statements for a firm in a perfectly competitive industry (8 points each):

a. The firm makes economic profit if the market price for the product is above ___________________

b. The firm's marginal revenue (MR) is the same as the _______________________

c. The firm's breakeven point is at the minimum _______________________

d. In the shortrun the firm will continue in business provided that the price is above _________________________

e. The firm's shutdown point is at the _______________________________

f. The firm's supply curve is that portion the marginal cost (MC) curve above minimum ______________________

g. The firm maximizes profit by setting MR equal to _______________________________________

h. The firm's profit is its total revenue minus ______________________________________________

https://brainmass.com/economics/perfect-competition/completing-statements-on-perfect-competition-248234

#### Solution Preview

1. Complete the following statements for a firm in a perfectly competitive industry (8 points each):

a. The firm makes economic profit if the market price for the product is above ___average marginal cost__

b. The firm's marginal revenue (MR) is the same as the ____demand curve________

c. The firm's breakeven point is at the minimum _average total cost___

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#### Solution Summary

Assistance with understanding how perfectly competitive markets work.

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## Cost-Benefit Analysis - Perfect competition

Use the table below to answer the following questions:

Table
Output Total Cost
0 \$10
1 \$20
2 \$28
3 \$38
4 \$53
5 \$73
6 \$99

a. What are variable costs of producing 5 units?
b. What is average total cost of producing 3 units?
c. What is average fixed cost of producing 4 units?
d. What is the marginal cost of producing the 2nd unit?
e. What are fixed costs?
f. What is average variable cost of producing 1 unit?

State whether the following describes MC(marginal cost), ATC(average total cost), AVC(average variable cost), or AFC(average fixed cost). Some statements may describe more than one cost curve.
a. Cost continuously decline as output rises
b. Always lies above the AVC curve
c. First declines as quantity increases, but then increases as quantity increases.
d. Cuts the ATC and AVC at their minimum points.

Task 1. Member _________. Suppose your team constructed a list of the following conditions of a perfectly competitive market. Circle those that he got correct and fix those that he got wrong.

There are many barriers to entry. Firms are price makers.

Firms' products are differentiated. There is complete information.

Firms maximize market share. The number of firms is large

Tasks 2. Member ________. Given the marginal cost information below, answer the following questions:

Output Marginal Costs
1 15
2 12
3 20
4 27
5 34
6 40
7 47

a. The firm can sell a helmet for \$34 and the firm is producing 6 helmets. Would increasing output increase or decrease profit?
b. The firm can sell a helmet for \$34 and the firm is producing 4 helmets. Would increasing output increase or decrease profit?
c. The firm can sell a helmet for \$34. What is the profit-maximizing level of output?

Task 3. Member _________. Why is the marginal revenue for a firm in perfect competition equal to the market price?

Task 4. Member_______. Briefly explain why the following statements are either Ture or False:
a. Perfectly competitive firms can never earn economic profit.
b. Perfectly competitive firms seek to maximize both per-unit and total profit.
c. Sometimes, profit-maximization is the same as loss-minimization.
d. The marginal cost curve, above the minimum AVC, is the supply curve for the perfectly competitive firm.

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