A sudden decrease in consumers' wealth-resulting, for example, from a stock market crash-would initially cause a(n)
a. downward movement along the consumption function.
b. downward shift of the consumption function.
c. upward movement along the consumption function.
d. upward shift of the consumption function.
b
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Assume that the LCD and plasma television sets industry is perfectly competitive. Suppose a producer develops a successful innovation that enables it to lower its cost of production. What happens in the short run and in the long run?
A) The firm will probably incur losses temporarily because of the high cost of the innovation, but in the long run it will start earning positive profits. B) The firm will be able to increase its economic profits temporarily, but in the long run its economic profits will be eliminated as other firms copy the innovation. C) Initially, the firm will be able to increase its profit significantly, but in the long run its profits will still be greater than zero but lower than its short-run profits because other firms would also innovate. D) This firm will be able to earn above normal profits indefinitely if it obtains a patent for its innovation.
Suppose that if there are n users of a network, the value of the membership is proportional to n(n ? 1). If the value of a network to a single user is $1 for each other user on the network, then a network of size 100 has a value of:
a. $9,500. b. $9,900. c. $9,000. d. $10,000. e. $10,100.