said by S_engineer:
you need to define competition. 3 companies in the same area with the same tiers, same price, and same abuses are hardly what should be defined as competition, it's more like collusion.
Not necessarily.. this is also a bi-product of competition and open market too. This is just like the corner gas-stations. When one raises it's price, the others generally will do the same, on their own, because they figure if one does, they all can. If one drops, they rest follow. Just as the people of this country are sheeple, so are many businesses.
To have collusion, they have to be in talks and make agreements - this isn't always the case. They just happen to play monkey-see, money-do with each other.