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Question
Macroeconomics
Posted 6 months ago

Atmos enterprises produces watches in a perfectly competitive market. Its cost and revenue curves are shown in this graph.

What quantity will this firm produce, and what price will it charge, in the short run?

Choose 1 answer:
(A) Q=8000;P=$75Q=8000 ; P=\$ 75
(B) Q=8000;P=$48\mathrm{Q}=8000 ; \mathrm{P}=\$ 48
(C) Q=6000;P=$48Q=6000 ; P=\$ 48
(D) Q=6000;P=$80Q=6000 ; P=\$ 80
(E) This firm will shut down
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Answer from Sia
Posted 6 months ago
Solution
a
Identifying Profit Maximization Point: In a perfectly competitive market, a firm maximizes profit where Marginal Cost (MC) equals Marginal Revenue (MR), which is also the price (P)
b
Determining Short-Run Production Quantity: The firm will produce at the quantity where MC intersects D = MR, which is at the point of 8,000 watches. However, this does not consider the firm's profitability at this quantity
c
Assessing Profitability: To determine if the firm should produce, we compare the price (D = MR) with the Average Total Cost (ATC) at the quantity of 8,000. If P < ATC, the firm incurs a loss and should not produce that quantity
d
Finding the Shutdown Point: The firm will shut down if the price is below the Average Variable Cost (AVC) at the profit-maximizing quantity. The shutdown point is where MC intersects AVC, which is at 3,000 watches and a cost of $25
e
Determining the Short-Run Price and Quantity: Since the firm is a price taker, it will charge the market price, which is where D = MR intersects MC. The firm will produce at the quantity where MC intersects ATC at the lowest point to minimize losses or maximize profits, which is at 6,000 watches and a cost of $48
Answer
C) $Q=6000 ; P=\$48
Key Concept
Short-Run Equilibrium in Perfect Competition
Explanation
In the short run, a perfectly competitive firm will produce where MC = MR and will charge the market price, which is equal to MR. The firm will not produce at a quantity where price is less than ATC to avoid losses.

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