Because it is difficult for economists to use experiments to generate data, they generally must
a. do without data.
b. substitute assumptions for data when data are unavailable.
c. rely upon hypothetical data that were previously concocted by other economists.
d. use whatever data the world gives them.
d
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When states make car insurance mandatory for all drivers, it
A) raises rates for everyone because it brings bad drivers into the pool. B) raises rates for high-risk drivers. C) may lower rates for all drivers to the extent that it keeps low-risk drivers in the pool. D) prevents high-risk drivers from "selecting out," to the detriment of low-risk drivers. E) increases the amount of information available to insurers about the population.
Why does the quantity demanded decrease when the price of a good increases?
A. People choose to reduce consumption of the item. B. People “drop out” of the market for the item. C. People find substitutes for the item. D. All of these responses are correct.