Money exchanges are more efficient than barter because:
a. money exchanges do not require a double coincidence of wants.
b. the government guarantees the value of money.
c. money usually has an intrinsic value.
d. money is backed by a physical commodity.
e. opportunity costs are higher with barter trades.
a
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Which area in the above figure shows the consumer surplus at the price and quantity that would be attained if the industry were perfectly competitive?
A) A + B + C + D B) A + B + C + D + E C) F + G + H D) A + B + C + D + E + F + G + H
The goal of health insurance is to
a. redistribute income from the sick to the healthy. b. spread risk over a large group of people. c. equally distribute the probability of loss over a large number of people. d. collect sufficient premiums to cover all possible losses. e. equalize the availability of medical care across population groups.
If the total utility Jack receives from 10 gallons of gasoline is 16, and the total utility Jack receives from 11 gallons of gasoline is 20, the marginal utility of the 11th gallon of gasoline is
a. 1 b. 4 c. 7 d. 20 e. 21
In a centrally planned economy
A. consumers do not have to consider prices when shopping. B. prices are zero. C. the government sets prices and decides how much of each good is to be produced. D. producers have an incentive to produce those goods most desired by consumers at the lowest cost.