In the short run, a firm
A. can exit an industry, and all of its factors of production are variable.
B. has at least one fixed factor of production.
C. can enter an industry where positive profits are being earned.
D. Both B and C are correct.
Answer: B
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For the settlement of futures contracts, the clearing corporation requires that a margin be placed with the corporation by
A) the short position only. B) the long position only. C) the short and the long in all contracts. D) the short and the long only in extraordinary circumstances.
Suppose the total cost of producing T-shirts can be represented as TC = 50 + 2q. The marginal cost of the 5th T-shirt is
A) 2. B) 10. C) 12. D) 60.
The usual results of an adverse supply shock are
a. a rise in prices and a fall in output. b. a fall in prices and a rise in output. c. increased growth and lower inflation. d. a rise in prices and a rise in output.
If demand is price inelastic, then
a. buyers do not respond much to a change in price. b. buyers respond substantially to a change in price, but the response is very slow. c. buyers do not alter their quantities demanded much in response to advertising, fads, or general changes in tastes. d. the demand curve is very flat.