3. Profit maximization using total cost and total revenue curves Suppose Kenji runs a small business that manufactures shirts. Assume that the market for shirts is a competitive market, and the market price is $20 per shirt. The following graph shows Kenji's total cost curve. Use the blue points (circle symbol) to plot total revenue and the green points (triangle symbol) to plot profit for shirts quantities zero through seven (inclusive) that Kenji produces. 200 175 Total Revenue 150 Total Cost 125 Profit 100 -25 TOTAL COST AND REVENUE (Dollars)

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Chapter13: Firms In Competitive Markets
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3. Profit maximization using total cost and total revenue curves
Suppose Kenji runs a small business that manufactures shirts. Assume that the market for shirts is a competitive market, and the market price is $20
per shirt.
The following graph shows Kenji's total cost curve.
Use the blue points (circle symbol) to plot total revenue and the green points (triangle symbol) to plot profit for shirts quantities zero through seven
(inclusive) that Kenji produces.
200
175
Total Revenue
150
Total Cost
125
Profit
100
-25
1
2.
TOTAL COST AND REVENUE (Dollars)
Transcribed Image Text:3. Profit maximization using total cost and total revenue curves Suppose Kenji runs a small business that manufactures shirts. Assume that the market for shirts is a competitive market, and the market price is $20 per shirt. The following graph shows Kenji's total cost curve. Use the blue points (circle symbol) to plot total revenue and the green points (triangle symbol) to plot profit for shirts quantities zero through seven (inclusive) that Kenji produces. 200 175 Total Revenue 150 Total Cost 125 Profit 100 -25 1 2. TOTAL COST AND REVENUE (Dollars)
(circie symboI) to plot marginal revenue and the orange points (square symbol) to piot marginal cost at each quantity.
40
35
Marginal Revenue
Marginal Cost
2
3
4
6
7
8
QUANTITY (Shirts)
Kenji's profit is maximized when he produces
shirts. When he does this, the marginal cost of the last shirt he produces is $
which is
than the price Kenji receives for each shirt he sells. The marginal cost of producing an additional shirt (that is, one more shirt than
would maximize his profit) is $
, which is
than the price Kenji receives for each shirt he sells. Therefore, Kenji's profit-maximizing
quantity corresponds to the intersection of the
curves. Because Kenji is a price taker, this last condition
can also be written as
COSTS AND REVENUE (Dollars per shirt)
Transcribed Image Text:(circie symboI) to plot marginal revenue and the orange points (square symbol) to piot marginal cost at each quantity. 40 35 Marginal Revenue Marginal Cost 2 3 4 6 7 8 QUANTITY (Shirts) Kenji's profit is maximized when he produces shirts. When he does this, the marginal cost of the last shirt he produces is $ which is than the price Kenji receives for each shirt he sells. The marginal cost of producing an additional shirt (that is, one more shirt than would maximize his profit) is $ , which is than the price Kenji receives for each shirt he sells. Therefore, Kenji's profit-maximizing quantity corresponds to the intersection of the curves. Because Kenji is a price taker, this last condition can also be written as COSTS AND REVENUE (Dollars per shirt)
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