Which of the following is considered a command economy?

What shows the quantities of products demanded at each price by all consumers in a market?

a) an elasticity and consumption list b) a schedule of consumer prices c) a market pricing list d) a market demand schedule

Presumably, since the United States is a large country in many of its international markets, a positive optimum tariff exists for this country

It follows therefore that when any legislator or government official who promotes zero-tariff free trade policies, is by definition not acting in the public's best interest. Discuss.