The graph contains individual supply curves for the only two firms in a hypothetical market for stuffed animals. Place the market supply curve at the correct location on the graph. Then, consider what would happen to the market if a third supplie enters the market, holding all else constant. Price per Stuffed Animal (5) 10 160 8 90 S w 4 Market for Stuffed Animals Firm Firm 2. Market 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9.000 10.000 A third firm would mean O Firm 1 and Firm 2 would lower output to accommodate the new supplier in order to keep market supply constant. market supply increases. O higher prices of stuffed animals. O market supply decreases.

3.14 Each of the 10 firms in a competitive market has a cost function of C = 25+q². The market demand function is Q = 120-p. Determine the equilibrium price, quantity per firm, and market quantity. M

3. Profit maximization in the cost-curve diagram Suppose that the market for frying pans 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. 100 90 Profit or Loss 80 70 ATC 60 50 40 30 AVC 20 MC 10 5 10 15 20 25 30 35 40 45 50 QUANTITY (Thousands of pans per day) In the short run, at a market price of $50 per pan, this firm will choose to produce 37,500 pans per day. PRICE (Dollars perpan)

The table below shows the weekly marginal cost (MC) and average total cost (ATC) for Buddies, a purely competitive firm that produces novelty ear buds. Assume the market for novelty ear buds is a competitive market and that the price of ear buds is $6.00 per pair. Buddies Production Costs Quantity MC ATC of Ear Buds ($) ($) 20 1.00 25 2.00 1.20 30 2.46 1.41 35 3.51 1.71 40 4.11 2.01 45 5.43 2.39 50 5.99 2.75 55 8.47 3.27 Instructions: In part a, enter your answer as the closest given whole number. In parts b-d, round your answers to two decimal places. a. If Buddies wants to maximize profits, how many pairs of ear buds should it produce each week? pairs b. At the profit-maximizing quantity, what is the total cost of producing ear buds? 2$ c. If the market price for ear buds is $6 per pair, and Buddies produces the profit-maximizing quantity of ear buds, what will Buddies profit or loss be per week? 2$

The following graph illustrates the market for small moving trucks in Eugene, OR, during Oregon's fall move-in week. PRICE (Dollars per small truck) 100 Demand 90 Supply 80 70 28 80 50 40 30 20 10 0 0 1 2 3 4 5 8 9 10 QUANTITY (Hundreds of small trucks) Suppose that Zoomba is one of over a dozen competitive firms in the Eugene area that offers moving truck rentals. Based on the preceding graph showing the weekly market demand and supply curves, the price Zoomba must take as given is Fill in the price and the total, marginal, and average revenue Zoomba eams when it rents 0, 1, 2, or 3 trucks during move-in week. Quantity (Trucks) Price Total Revenue (Dollars per truck) (Dollars) 0 1 2 3 Marginal Revenue (Dollars) Average Revenue (Dollars per truck) 0 The demand curve faced by Zoomba is identical to which of its other curves? Check all that apply. Supply curve Average revenue curve Marginal cost curve Marginal revenue curve

8. Refer to the information in the table below to answer the following questions: TVC €0 10 15 Quantity of fruit baskets 0 1 2 3 4 5 6 TFC €50 50 50 50 50 50 50 21 31 46 68 TC MC -- 10 5 6 10 15 22 a) The firm sells fruit baskets in a perfectly competitive market. Calculate the firm's total cost for each level of production and complete the table. b) Assume that the market price of a fruit basket is €15. To maximize profit, how many fruit baskets should the firm sell? c) At the profit-maximizing quantity, what is the profit?

4   The Competitive Equilibrium Model—Deriving Supply] Negar owns a trendy and sustainable shoe factory. The total cost of producing a given number of pairs of shoes is displayed in the table below. Assume Negar can only produce the integer quantities of pairs of shoes specified in the table.   Number of pairs Total Cost 0 400 10 410 20 430 30 460 40 500 50 580 60 680 70 800   b. Draw the supply curve for Negar’s shoe factory. c. Suppose the wholesale market for shoes that sell to retail stores is competitive, with a market price of $10 per pair (i.e., $100 per 10 pairs). If Negar’s goal is to maximize profits, how many pairs will she choose to sell? d. What are Negar’s profits when she sells the number of pairs from (c) at the market price of $10? e. Calculate Negar’s producer surplus given the price and quantity from part (c). How does this compare to the profit calculated in part (d)?

19 Market Representative Firm MC i of A $7 a MR = P АТС b $5 AVC $2 D1 18,000 70 100 115 Quantity (Q) Output (Q) The diagram above shows a Perfectly Competitive market on the left, and a representative firm supplying in that market on the right. If the entry of new firms into the market caused the equilibrium Price to decrease to $5, the representative firm would: Select one: а. earn a positive Economic Profit. b. earn a negative Economic Profit. c. shut down in the short-run. d. earn zero Economic Profit. Price $$$

How low would the market price haveto fall before the firm decided to produce nothing?

Homework (Ch 06) Back to Assignment Attempts Do No Harm / 1 3. Effects of rent control Rent controls force landlords to price apartments below the equilibrium price level. An immediate effect is a shortage (excess demand) of apartments, because the quantity of apartments demanded is greater than the quantity supplied at the regulated price. When cities prevent landlords from charging market rents, which of the following are common long-run outcomes? Check all that apply. O Landlords earn lower profits from renting housing units, but the rent charged has no effect on either the quantity or quality of rental units. O The future supply of rental housing units increases. O Black markets develop. O The quality of rental housing units falls.