I'll give the Canadian telecom market as a counterexample: Multiple large providers (Rogers, Bell, Telus, Videotron to name the top four) instead of competing f

I'll give the Canadian telecom market as a counterexample: Multiple large providers (Rogers, Bell, Telus, Videotron to name the top four) instead of competing for customers and driving prices down, they have effectively colluded into an oligopoly - to the point of matching prices and plan details. In this case we have multiple entities working together to maintain the existing problem, so they can collectively maximize profits.