Which of the following is considered to be an investment in economists' point of view?
a. Serena buys bonds issued by Citibank.
b. John purchases a new house.
c. Venus invests hundred thousand dollars in Bear Stearns stock.
d. Allen sells the old truck he used for transporting goods.
b
Economics
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If we observe that William's budget constraint has moved inward, then we know for certain that
a. his income must have decreased. b. he will be indifferent between goods X and Y. c. the price of one or both of the goods must have increased. d. his utility will decrease.
Economics
If you sum the squares of the market shares of each firm in an industry (as measured by percent of industry sales), you are calculating the:
A. four-firm concentration ratio. B. Herfindahl index. C. degree of collusion. D. Lerner index.
Economics