Which of the following is NOT a generally accepted measure of the riskiness of an investment?
A) Standard deviation
B) Expected value
C) Variance
D) none of the above
B
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Changes in demand will often be met with changes in output rather than changes in prices because of formal and informal contracts
Indicate whether the statement is true or false
Railroads have received significant attention from regulators because
a. railroads enjoy significant economies of scale. b. conditions in the railroad industry are conducive to destructive competition. c. regulators would like to ensure universal service to all potential railroad customers. d. All of the above are correct.
Price leadership works only if there is a single, dominant firm in the oligopoly
a. True b. False Indicate whether the statement is true or false
If quantity demanded falls by 25 percent when price rises by 50 percent, demand is said to be:
A. unit elastic. B. elastic. C. inelastic. D. proportional.