6. Which of the following best characterizes generic, largely unprocessed, goods that can be processed and resold. They are often traded in the financial markets for immediate or future delivery. They are generally traded in very large quantities. Examples are grains, metals, and minerals.

		Commodities
		Stocks
		Bonds
		Books
		Television airtime

10. Which of the following is a natural obstacle to trade?

		Protective tariff
		Import quota
		The cost of transporting goods
		All of the listed choices are natural obstacles to trade.