3. Profit maximization using total cost and total revenue curves Suppose Rosa 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 Rosa'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 Rosa produces. 200 175 Total Revenue 150 Total Cost 125 Profit 100 50 25 2 QUANTITY (Shirts) TOTAL COST AND REVENUE (Dollars)

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3. Profit maximization using total cost and total revenue curves
Suppose Rosa 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 Rosa'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 Rosa produces.
200
175
Total Revenue
150
Total Cost
125
Profit
100
75
-25
3
QUANTITY (Shirts)
TOTAL COST AND REVENUE (Dollars)
Transcribed Image Text:3. Profit maximization using total cost and total revenue curves Suppose Rosa 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 Rosa'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 Rosa produces. 200 175 Total Revenue 150 Total Cost 125 Profit 100 75 -25 3 QUANTITY (Shirts) TOTAL COST AND REVENUE (Dollars)
Calculate Rosa's marginal revenue and marginal cost for the first seven shirts she produces, and plot them on the following graph. Use the blue points
(circle symbol) to plot marginal revenue and the orange points (square symbol) to plot marginal cost at each quantity.
40
35
Marginal Revenue
30
25
Marginal Cost
20
15
10
3
QUAN
TY (Shirts)
Rosa's profit is maximized when she produces
| shirts. When she does this, the marginal cost of the last shirt she produces is S
which
is
than the price Rosa receives for each shirt she sells. The marginal cost of producing an additional shirt (that is, one more shirt than
would maximize her profit) is S
which is
than the price Rosa receives for each shirt she sells. Therefore, Rosa's profit-
maximizing quantity corresponds to the intersection of the
curves. Because Rosa is a price taker, this last
condition can also be written as
COSTS AND REVENUE(Dollars per shirt)
Transcribed Image Text:Calculate Rosa's marginal revenue and marginal cost for the first seven shirts she produces, and plot them on the following graph. Use the blue points (circle symbol) to plot marginal revenue and the orange points (square symbol) to plot marginal cost at each quantity. 40 35 Marginal Revenue 30 25 Marginal Cost 20 15 10 3 QUAN TY (Shirts) Rosa's profit is maximized when she produces | shirts. When she does this, the marginal cost of the last shirt she produces is S which is than the price Rosa receives for each shirt she sells. The marginal cost of producing an additional shirt (that is, one more shirt than would maximize her profit) is S which is than the price Rosa receives for each shirt she sells. Therefore, Rosa's profit- maximizing quantity corresponds to the intersection of the curves. Because Rosa is a price taker, this last condition can also be written as COSTS AND REVENUE(Dollars per shirt)
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