Initially, the economy is at point G in Figure 10-4 above. An increase in per capita savings from s(0 ) to s(1 ) will in the short run result in ________ and in the long run result in ________
A) excess per capita saving; more rapid growth in per capita output
B) excess per capita saving; less rapid growth in per capita output
C) more rapid growth in per capita output; more rapid growth in per capita output
D) more rapid growth in per capita output; no change in the long run rate of growth in per capita output
D
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The table above lists the market shares of the twenty makers of personal computers. The four-firm concentration equals
A) 5 percent. B) 20 percent. C) 25 percent. D) 100 percent.
Limit pricing refers to
A) the fact that a monopoly firm always sets the highest price possible. B) how the price is determined in a kinked demand curve model of oligopoly. C) a situation in which a firm might lower its price to keep potential competitors from entering its market. D) none of the above.
Constantine purchased 100 shares of IBM stock several years ago for $150 per share. The price of these shares has fallen to $55 per share. Constantine's investment strategy is "buy low, sell high"
Therefore, he will not sell his IBM stock until the price rises above $150 per share. If he sells at a price lower than $150 per share he will have "bought high and sold low." Constantine's decision: A) is correct and shows a solid command of the nature of opportunity cost. B) is incorrect because the original price paid for the shares is a sunk cost and should have no bearing on whether the shares should be held or sold. C) is incorrect because when the price of a stock falls, the law of demand states that he should buy more shares. D) is incorrect because it treats the price of the shares as an explicit cost.