8/9a - ARE BUSINESSES EFFICIENT? Pure Competition in the Short Run

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8/9a - ARE BUSINESSES EFFICIENT? Pure Competition in the Short Run This web quiz may appear as two pages on tablets and laptops. I recommend that you view it as one page by clicking on the open book icon at the bottom of the page.

A Continuum of Product Markets

ARE BUSINESSES EFFICIENT? 4 Product Market Models General Outline for Each Model: 1. Characteristics and Examples 2. Nature of the Demand Curve 3. Short Run Equilibrium (Profit Max.) 4. Long Run Equilibrium and Efficiency 5. Other Issues

4 Product Market Models – ARE BUSINESSES EFFICIENT? General Outline for Each Model: Know the model's characteristics and examples (quiz on Bb) Be able to explain the shape of the demand curve Find short run equilibrium (3 ways)and draw graphs for: (a) profit maximizing firms, (b) loss minimizing firms, and (c) firms that will shut down Draw the long run equilibrium graph and find the profit maximizing quantity (WHAT WE GET), allocatively efficient quantity (WHAT WE WANT), and the productively efficient quantity. (See BLUE Pages) Understand any other issues associated with the model

8/9a – Pure Competition, Short-Run Outcomes /Must Know: List the four basic market models and know characteristics and examples of each. Describe characteristics and examples of a purely competitive firms and industries. Explain how a purely competitive firm views demand for its product and marginal revenue from each additional unit sale. Compute and graph average revenue (also called price), total revenue, and marginal revenue when given a demand schedule for a purely competitive firm. Use both total revenue minus total cost approach and the marginal revenue = marginal cost approach to determine the short run price and output that maximizes profits (or minimizes losses) for a competitive firm. with a table of data on a graph with numbers on a graph using geometry (graph with letters) Draw the short run equilibrium graphs for a purely competitive firm that (a) maximizes profit, (b) minimizes loss, and (c) shuts down Find the short run supply curve when given short run cost schedules for a competitive firm.

8/9a – Pure Competition, Short-Run KEY TERMS: pure competition, pure monopoly, monopolistic competition, oligopoly, imperfect competition, standardized (homogenous) product, perfectly elastic demand, market power, price taker, average revenue (usually price), marginal revenue, total revenue, MR=MC rule (profit maximization rule), short-run equilibrium, short-run supply curve

1. Monopolistic Competition is an industry structure in which: All firms sell an identical (standardized) product Each firm reacts to what the others do (mutual interdependence) Each firm tries to gain market power by product differentiation The market has significant barriers to entry

1. Monopolistic Competition is an industry structure in which: All firms sell an identical (standardized) product Each firm reacts to what the others do (mutual interdependence) Each firm tries to gain market power by product differentiation The market has significant barriers to entry

2. Which of the following is not an assumption (characteristic) of perfectly competitive markets? Barriers to entry Standardized (homogeneous) products Many firms Firms face a horizontal demand (perfectly elastic)

2. Which of the following is not an assumption (characteristic) of perfectly competitive markets? Barriers to entry Standardized (homogeneous) products Many firms Firms face a horizontal demand (perfectly elastic)

3. For purely competitive firms: AR = ATC P = MR MC = ATC AVC = AFC

3. For purely competitive firms: AR = ATC P = MR MC = ATC AVC = AFC

Pure Competition Price is determined by the market Demand is perfectly elastic for the individual firm – WHY?

Why is the demand perfectly price elastic? OR, why are purely competitive firms price takers?

4. A firm in a competitive industry will try to produce the output level for which: TR is at a maximum ATC is at a minimum TC = TR MC = MR

4. A firm in a competitive industry will try to produce the output level for which: TR is at a maximum ATC is at a minimum TC = TR MC = MR

To maximize profits all firms will produce the quantity where: MR = MC as long as MC is increasing.

5. If P = $32, this competitive firm will produce: 8 at a profit of $16 6 at a profit of $12.50 10 at a profit of $4 7 at a profit of $41.50

5. If P = $32, this competitive firm will produce: 8 at a profit of $16 6 at a profit of $12.50 10 at a profit of $4 7 at a profit of $41.50

6. If P=$40, this profit max. competitive firm’s TR will equal: $3,750 $2,000 $6,000 $10,000

6. If P=$40, this profit max. competitive firm’s TR will equal: $3,750 $2,000 $6,000 $10,000

What is the error on the graph? WRONG CORRECT

7. If Price is P3, then what area represents profits? R + S

7. If Price is P3, then what area represents profits? R + S

8. What are the max. profits? fecb fbag 0ecn 0fbn

8. What are the max. profits? fecb fbag 0ecn 0fbn

5, loss = $105 5, profit = $105 8, loss = $136 zero, loss = $100 9. If the market price for the firm's product is $13, the competitive firm will produce:  5, loss = $105 5, profit = $105 8, loss = $136 zero, loss = $100

5, loss = $105 5, profit = $105 8, loss = $136 zero, loss = $100 9. If the market price for the firm's product is $13, the competitive firm will produce:  5, loss = $105 5, profit = $105 8, loss = $136 zero, loss = $100

If the price is below the AVC curve then the firm will shut down Q = 0 Losses will be equal to TFC

10. Many recreation parks shut down in the off-season because in the off-season: Prices are below the average total costs costs increase dramatically revenue cannot cover variable costs revenue cannot cover total costs

10. Many recreation parks shut down in the off-season because in the off-season: Prices are below the average total costs costs increase dramatically revenue cannot cover variable costs revenue cannot cover total costs

DO THE YELLOW PAGES AND ASK QUESTIONS! BE ABLE TO: Find and Graph short run equilibrium price, quantity, and profits or losses, for purely competitive firms earning: profits, losses, and shutting down Three ways: Table of data Graph with numbers Graph with letters DO THE YELLOW PAGES AND ASK QUESTIONS!