At a market price of $35.20 a batch, what quantity does Lin’s produce and what is the firm’s economic profit in the short run?

You read in a business magazine that farmers are reaping high profits. With the theory of perfect competition in mind, what do you expect to happen over time (in the long run) to each of the following? a. The prices of agricultural products how will this affect the market equilibrium price of the agricultural products? Will it remain the same, increase or decrease?

Ben opened his ice cream stand and he aims to maximize profits by making 100 ice cream cones a day. Ben planned to buy two ice cream makers, but his sister happened to have an extra one and she gave it to him for free. Ben's fixed costs decrease and the market price remains constant. The short run profit maximizing level of output a day a) becomes zero b) is still 100 ice cream cones c) is more than 100 ice cream cones d) is less than 100 ice cream cones

In the long run with free entry and exit, is the price in a market equal tomarginal cost, average total cost, both, or neither? Explain with a diagram.

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Tomas is the general manager for a local automated car wash. The market he operates is perfectly competitive. Every car wash in the area is charging $7 for a car wash, which is also the marginal cost per wash. What will happen to Tomas’ profits if he changes his price to $8. Why? What about the price of $5? What is his profit-maximizing price?

Does a compentve firms price equal its marginal cost in a short run, on the long run or both? Explain, Does a competitive firms price equal the minimum of its average total cost in the short run, in the long run, or both ? Explain

When would a profit-maximizing firm shut down in the short run?

Suppose Melody owns a business giving piano lessons. Assume that the market for piano lessons is perfectly competitive and that the equilibrium price of a piano lesson is $20. Melody's total costs vary depending on the number of piano lessons she offers each day, as shown in the table below. Number of lessons Total cost per day per day ($) 0 30 1 50 2 68 3 78 4 96 5 115 6 138 168 208 7 8 a. When Melody gives 3 lessons per day, what is her average variable cost? b. What is the profit-maximizing number of lessons for Melody to give each day? lessons per day c. What is Melody's daily economic profit at her profit-maximizing number of lessons? Instructions: If you are entering a negative number, be sure to include a negative sign (-). +A

$11.00 MC| $10.00 $9.00 ATC $8.00 $7.00 TRAVCI $6.00 $5.00 $4.00 $3.00 2 3 7 9 10 Quantity of Output (q) Pierre is a photographer in a perfectly competitive market. The graph shown above gives his MC, ATC and AVC curves. Suppose the market price is $10.50. How much profit does Pierre make? 22.5 24 20 O18 S per unit