Question

the most common economic system in the world is a
closed economy.
command economy
mixed market economy.
traditional economy

Explanation:

To determine the most common economic system, we analyze each option:

• A closed economy (isolated, rare in practice).
• A command economy (government - controlled, not dominant globally).
• A mixed market economy combines market - driven and government - regulated elements, which is the dominant system as most countries blend market forces with some state intervention.
• A traditional economy (based on customs, limited in modern global context).

Answer:

C. mixed market economy