The citizens of the United States live and work in a

closed economy.

command economy.

mixed market economy

pure market economy

die

It is a Command economy.

Step-by-step explanation:

I would say this because America isn't a closed economy and doesn't classify itself for one feature of its trade either. Also because American currency is the accepted main currency in the world.

The citizens of the United States live and work in a mixed market economy.

Step-by-step explanation:

A mixed market economy is that economy which exists under a democratic government and provides some regulation. It is a combination of free market economy and a command economy.

This economy works under capitalist and socialist policies and contains ideas from the market economy structure.