Question

In: Economics

A profit-maximizing firm in a perfectly competitive market operates in the short run with total fixed...

A profit-maximizing firm in a perfectly competitive market operates in the short run with total fixed costs of D $2,250 and total variable costs (TVC) as is below. The firm can only produce integer amounts of output (Q):

Q (Output)

TVC (Total Variable Cost

0

0.00

1

2,500

2

4,000

3

5,000

4

6,200

5

7,600

6

9,360

7

11,500

8

13,860

9

16,450

10

19,200

11

22,310

3a. How much output should the firm produce if it can sell all the output it produces at a price of E $2,400 per unit? Show your work!

3b. What are firm profits (or losses) when price per unit is E $2,400? Show your work!

Solutions

Expert Solution

We know that Total Cost(TC) = Total Fixed Cost(TFC) + Total Variable Cost(TVC)

Marginal Cost(MCn) = TCn - TCn-1

Total Revenue(TR) = P x Q

Marginal Revenue(MRn) = TRn - TRn-1

Given: Price = $2400

3a)

Q(Output) TVC(in Dollars) TFC(in Dollars) TC(in Dollars) MC TR MR
0 0 2250 2250 - 0 -
1 2500 2250 4750 2500 2400 2400
2 4000 2250 6250 1500 4800 2400
3 5000 2250 7250 1000 7200 2400
4 6200 2250 8450 1200 9600 2400
5 7600 2250 9850 1400 12,000 2400
6 9360 2250 11,610 1760 14,400 2400
7 11,500 2250 13,750 2140 16,800 2400
8 13,860 2250 16,110 2360 19,200 2400
9 16,450 2250 18,700 2590 21,600 2400
10 19,200 2250 21,450 2750 24,000 2400
11 22,310 2250 24,560 3110 26,400 2400

For a perfectly competitive firm, the profit maximization condition is given by:

MR = MC

Although, in this case, MR doesn't equal MC at any point.

So, in order to maximize profit, the firm should produce 8 units of output because that is the point till which MR > MC. After this output, marginal cost becomes greater than marginal revenue.

3b)

Profit = Total Revenue(TR) - Total Cost(TC)

So, for each output, the firm's profits(losses) are as follows:

Q(Output) TVC(in Dollars) TFC(in Dollars) TC(in Dollars) MC TR MR Profit
0 0 2250 2250 - 0 - -2250
1 2500 2250 4750 2500 2400 2400 -2350
2 4000 2250 6250 1500 4800 2400 -1450
3 5000 2250 7250 1000 7200 2400 -50
4 6200 2250 8450 1200 9600 2400 1150
5 7600 2250 9850 1400 12,000 2400 2150
6 9360 2250 11,610 1760 14,400 2400 2790
7 11,500 2250 13,750 2140 16,800 2400 3050

8

13,860 2250 16,110 2360 19,200 2400 3090
9 16,450 2250 18,700 2590 21,600 2400 2900
10 19,200 2250 21,450 2750 24,000 2400 2550
11 22,310 2250 24,560 3110 26,400 2400 1840

From the above table also,we can see that the profit is maximized at Q = 8 and the profit is $3090.


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