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One way to deal with missing values is to randomly select an answer.
Tariff
A tax imposed by a government on goods and services imported from other countries.
Comparative Advantage
The ability of an individual, firm, or country to produce a certain good or service at a lower opportunity cost than other producers.
International Trade
The exchange of goods, services, and capital between countries and territories, allowing for greater variety of consumption and efficiencies in production.
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