Long-run market supply curves are downward sloping if
A) firms are identical.
B) the number of firms is restricted in the long run.
C) input prices fall as the industry expands.
D) All of the above.
C
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Experience with patents in the pharmaceutical industry shows that when patents on drugs expire
A) prices remain high without patent protection because of a lack of competition. Firms that are not granted patents cannot compete with firms that are granted patents. B) other firms are free to produce chemically identical drugs. Competition reduces the profits that had been earned by the firms that received patents. C) most patients will continue to buy the drugs from the same firms because their doctors recommend they buy brand-name drugs. D) firms will find ways to obtain additional patent protection—often by making cosmetic changes in drugs that were patented—so that they can continue charging high prices.
Crude oil price controls improved efficiency in the oil industry
Indicate whether the statement is true or false
The expenditure approach to GDP accounting includes:
a. wages and salaries. b. net exports. c. net interest. d. corporate profit. e. proprietors' income.
Why does the Fed have imperfect control over the money supply over short periods?
a. Because of unpredictable changes in reserve requirements b. Because the public responds to open market operations in unpredictable fashions c. Because the Fed does not know how much reserves will change when it buys or sells securities d. Because of unpredictable changes in public desire to hold cash and banks' desires to hold reserves