Chapter 23: Q. 23.4LO (page 510)
Explain how the equilibrium price is determined in a perfectly competitive market
Short Answer
The market cost price is bigger than orcapable the minimum AVC.
Chapter 23: Q. 23.4LO (page 510)
Explain how the equilibrium price is determined in a perfectly competitive market
The market cost price is bigger than orcapable the minimum AVC.
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Take a look at Figure 23-5, and suppose that the price per unit corresponding to the position of d2 is at $2.50 per unit and that the quantity at point E2 is exactly 5 units per hour. Calculate total revenues and total variable costs at point E2 and explain why it is called the short-run shutdown point.

In several markets for digital devices that can be viewed as perfectly competitive, steady increases in demand for the required minerals ultimately have generated long-run reductions in the market prices of these devices. Describe in words the types of adjustments that must have occurred in these markets to have brought about this outcome, and evaluate whether such digital-device industries are increasing, constant, or decreasing-cost industries.
Consider Figure 23-8. Why does the output rate in panel (b) remain at units per hour even if the position of the AC curve shifts from tofollowing an increase in fixed costs, and how do we know that economic profits then become negative?

Why might daily variations in the market clearing price of recycled plastic induce some firms to call in their workers and pay them wages for their labor services on some days but tell them to stay home on others?
Take a look at Figure 23-3. This figure uses the data in the table from Figure 23-2, which indicates that the area of the blue rectangle displaying hourly economic profits is $5 per period. What prevents this firm from continuing to produce the same number of units per hour but raising the price that it charges for each unit in order to enlarge the area of the profit rectangle?

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