Which of the following increases the supply of gasoline?
A) a situation where the quantity of gasoline demanded exceeds the quantity supplied
B) an increase in the price of gasoline
C) a decrease in the price of a resource used to produce gasoline, such as crude oil
D) a decrease in the demand for gas-guzzling, sport utility vehicles
E) an increase in income if gas-guzzling, sport utility vehicles are a normal good
C
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Which of the following statements about private and social costs is TRUE?
A) Social costs include externalities. B) Private cost do not include externalities. C) Social costs are never smaller than private costs. D) All of the above.
Since the late 1970s which of the following groups has become worse off?
a. Highly-skilled workers b. Technical workers c. Less-skilled workers d. Scientists and other workers who require a lot of education e. All types of workers