Which of the following would increase the old-age dependency ratio over the next 25 years?
A. Medical advances that extend the lives of people over the age of 50
B. An increase in the number of young immigrants
C. An increase in the birthrate
D. A reduction in Social Security taxes
Answer: A
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The table above shows the payoff matrix for a prisoners' dilemma game. The Nash equilibrium is that
A) both prisoners do not confess. B) both prisoners confess. C) prisoner A confesses while prisoner B does not confess. D) prisoner A does not confess while prisoner B confesses.
Doris, a burglar who breaks into houses, decides to break into the house at 265 Elm Street, rather than the house next door because the house next door has a sign in the yard that says "home protected by a security system." To an economist, Doris is...
What will be an ideal response?
Refer to the figure below. In the matrix above: 
A. both Cory and Jess have the same dominant strategy. B. Cory has a dominant strategy, but Jess does not. C. neither Cory nor Jess has a dominant strategy. D. Jess has a dominant strategy, but Cory does not.
Which statement is true?
A. Entrepreneurial ability is in short supply in the U.S. B. Land, labor and capital may be considered passive resources. C. The concept of opportunity cost is irrelevant when there is scarcity. D. None of these statements are true.