Question

In: Economics

The following table provides incomplete information on the costs of producing diagnostic imaging tests. It uses...

The following table provides incomplete information on the costs of producing diagnostic imaging tests. It uses two inputs to produce its outputs: capital and labour. The fixed capital costs reflect the monthly leasing cost for the diagnostic imaging machine and the variable labour costs reflects the wages and hours worked by staff.

Assume that the firm is operating in a perfectly competitive market. Also assume that its fixed costs are sunk costs (i.e. it cannot recuperate these costs even if it decides to leave the market.

Quantity produced

Fixed cost

Variable cost

Total cost

Average total cost

Average variable costs

Marginal cost

0

25

0

1

25

35

2

25

60

3

25

80

4

25

95

5

25

105

6

25

125

7

25

155

8

25

186

9

25

225

10

25

280

  1. Complete all empty cells in the table above
  1. Provide a brief explanation of why the marginal costs could exhibit the pattern you observe in part (a).
  1. Add three columns to the table above headed: (i) marginal revenue; (ii) total revenue; and (iii) profit. If the market price was $40, complete all new columns in the table over the output range of 0 to 10
  1. If the market price was $40, what would be the optimum level of production for the firm? Why?

Solutions

Expert Solution

a.Ans:

Quantity
produced
Fixed cost Variable cost Total cost Average total cost Average variable costs Marginal cost
0 25 0 25 -- -- --
1 25 35 60 60 35 35
2 25 60 85 42.5 30 25
3 25 80 105 35 26.67 20
4 25 95 120 30 23.75 15
5 25 105 130 26 21 10
6 25 125 150 25 20.83 20
7 25 155 180 25.71 22.14 30
8 25 186 211 26.38 23.25 31
9 25 225 250 27.78 25 39
10 25 280 305 30.5 28 55

Explanation:

Total Cost = Fixed Cost + Variable Cost

Average Total Cost = Total cost / Quantity of output

Average Variable Cost = Total Variable cost / Quantity of output

Marginal cost = Change in total cost / Change in Quantity of output

b. Ans: Initially , marginal cost decreases due to economies of scale and then increases due to diseconomies of scale in the production process.

c. Ans:

Quantity
produced
Fixed cost Variable cost Total cost Average total cost Average variable costs Marginal cost Marginal Revenue Total Revenue Profit
0 25 0 25 -- -- -- -- 0 -25
1 25 35 60 60 35 35 40 40 -20
2 25 60 85 42.5 30 25 40 80 -5
3 25 80 105 35 26.67 20 40 120 15
4 25 95 120 30 23.75 15 40 160 40
5 25 105 130 26 21 10 40 200 70
6 25 125 150 25 20.83 20 40 240 90
7 25 155 180 25.71 22.14 30 40 280 100
8 25 186 211 26.38 23.25 31 40 320 109
9 25 225 250 27.78 25 39 40 360 110
10 25 280 305 30.5 28 55 40 400 95

Explanation:

Total Revenue = Price * Quantity of output

Marginal Revenue = Change in total revenue / Change in Quantity of output

Profit = Total Revenue - Total Cost

d. Ans: The optimum level of production for the firm would be 9 units. Because at this level of output, price is greater than marginal cos. After this production level , marginal cost becomes greater than the price.

Explanation:

Under perfect competition , the profit maximization condition is where price equals marginal cost ( P = MC) or price is greater than marginal cost ( P > MC).


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