3. Profit maximization using total cost and total revenue curves Suppose Eleanor 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 Eleanor'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 Eleanor produces. 200 175 Total Revenue 150 Total Cost 125 Proft Use the blue points (circle symbol) to olot total NUE (Dollars)

3. Profit maximization using total cost and total revenue curves Suppose Madison operates a handicraft pop-up retail shop that sells phone cases. Assume a perfectly competitive market structure for phone cases with a market price equal to $25 per phone case. The following graph shows Madison's total cost curve. Use the blue points (circle symbol) to plot total revenue and the green points (triangle symbol) to plot profit for phone cases for quantities zero through seven (including zero and seven) that Madison produces. TOTAL COST AND REVENUE (Dollars) 200 175 150 125 100 75 50 0 * U 0 1 O 2 n D 0 3 QUANTITY (Phone cases) ■ Total Cost O Total Revenue Profit Calculate Madison's marginal revenue and marginal cost for the first seven phone cases they produce, 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.

Que 1

The following graph shows the long-run supply curve for persimmons. Place the orange line (square symbol) on the following graph to show the most likely short-run supply curve for persimmons. (Note: Place the points of the line either on W and R or on W and M.) PRICE (Dollars per pound) 24 20 16 6 2 co 4 0 0 W 4 M R Long-Run Supply 2 6 8 10 QUANTITY (Thousands of pounds of persimmons) 12 Short-Run Supply ?

PRICE (Cents per bushel) COST (Cents per bushel) 100 90 80 70 60 50 ATC 40 30 20 10 AVC MC 0 5 10 15 20 25 30 35 40 45 50 OUTPUT (Thousands of bushels) The following graph shows the market demand for wheat. 1. Use the orange points (square symbol) to plot the short-run industry supply curve for the wheat industry. Specifically, place an orange point at the lowest point of the supply curve and another orange point at the highest point of the supply curve. (Hint: You can disregard the portion of the supply curve that corresponds to prices where there is no output, since this is the industry supply curve. Plot your points in the order in which you would like them connected. Line segments will connect the points automatically.) 2. Place the black point (plus symbol) on the graph to indicate the short-run equilibrium price and quantity in this market. (Note: Dashed drop lines will automatically extend to both axes.) 100 90 80 60 30 20 2 2 2 2 8 8 2 2 2 2 ° 0 Demand 350 700 1050 1400 1750…

4. Profit maximization in the cost-curve diagram Suppose that the market for candles is a competitive market. The following graph shows the daily cost curves of a firm operating in this market. Hint: After placing the rectangle on the graph, you can select an endpoint to see the coordinates of that point.

113. Subject  :- Economy

Calculate Kenji's marginal revenue and marginal cost for the first seven shirts he 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. ? 30 8 COSTS AND REVENUE (Dollars per shirt) 25 15 O 10 0 0 1 2 5 QUANTITY (Shirts) 3 4 6 Kenji's profit is maximized when he produces 7 8 would maximize his profit) is $ which is maximizing quantity corresponds to the intersection of the last condition can also be written as Marginal Revenue 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 than the price Kenji receives for each shirt he sells. Therefore, Kenji's profit- curves. Because Kenji is a price taker, this Marginal Cost

Complete the table below to answer questions 46. and 47.: Price Quantity Cost $18 16 14 12 10 8 642 012345678 Total Revenue Marginal Revenue Marginal $0 X $2.00 $16 $16 2.50 28 12 3.00 3.50 4.00 4.50 5.00 5.50 6.00 What is the profit-maximizing number of units to produce? What is the profit-maximizing price? 46 46. a. 2 b. 4 c. 6 d. 8 47. a. $14 b. $10 c. $6 d. $4