posted by Erick .
Why do oligarchy exist? List five or six oligopolists whose products you own or regularly purchase. What distinguishes oilgopoly from monopolistic competition?
Are you sure you mean "oligarchy?"
This is a form of government, not a company or economic entity.
That's how the question is written in the textbook
Then the textbook is wrong.
The word is "oligopoly," not "oligarchy."
Check this site.