Monopolies such as those created by copyrights and patents
A. inhibit but do not prevent innovation and authorship.
B. lower prices.
C. stifle innovation and authorship.
D. are necessary to motivate innovation and authorship.
Answer: D
Economics
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Under a system of barter
A) each individual trades output directly with another. B) only agricultural goods may be traded. C) goods may be traded for money, but money may not be traded for goods. D) currency is accepted for purchases, but personal checks are not.
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In 2013, about what percentage of goods and services sold in the United States was imported?
a. 5% b. 16% c. 22% d. 88%
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