A positive externality exists when
A. a person's or group's actions cause a benefit that is felt by others.
B. a person's or group's actions cause a cost that is felt by others.
C. market output is less than socially optimal output.
D. a and c
E. b and c
Answer: D
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Tara sells her organic carrots in a perfectly competitive market for a price that is just higher than her minimum average variable cost of production, but lower than her minimum average total cost of production. Which of the following statements is then true?
a. Although she is currently incurring a loss, she could restore profitability by advertising her carrots. b. She can minimize her losses by shutting down her operations now. c. She is incurring a loss, because price is less than ATC. d. She is earning a profit, because price is above AVC.
Refer to the information above. What is the value of the firm's capital stock at the end of period 5?
A) 612.5 B) 106.75 C) 175 D) 89.25