Since the Social Security system began in 1935, the number of workers per retiree has
A) stayed roughly the same.
B) continually risen.
C) continually declined.
D) risen and declined with different generations.
Answer: C
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How is economic growth shown by the production possibilities curve?
A) by shifting the curve to the right B) by moving the curve to the left C) by moving up the existing curve D) by changing the shape of the curve from a straight line to one that is bowed
If TC = 321 + 55Q - 5Q2, then average total cost at Q = 10 is:
a. 10.2 b. 102 c. 37.1 d. 371 e. 321
An increase in demand will have what effect on equilibrium price and quantity?
a. Price will increase; quantity will decrease. b. Price will decrease; quantity will increase. c. Both price and quantity will increase. d. Both price and quantity will decrease.
The Cost-Benefit Principle indicates that an action should be taken if:
A. its average benefits exceed its average costs. B. its net benefit (benefit minus cost) is zero. C. its extra benefit is greater than or equal to its extra cost. D. its total benefits exceed its total costs.