I have to take exception to this. There is a tendency, particularly at a certain stage of growth, for some enterprises to consider methods of unfair competition.
Just look at the drug trade. Rather than reduce prices to get more customers, the pusher considers other techniques to reduce competition.
Unfortunately, an even larger entity, (the state), often has to provide a regulated environment, or the pushers eventually will become the state. (See South America)
If you look closely enough, you'll see an anti-market regulation behind monopolies... an entry barrier, or some enviromental/health/safety regulation that pushes smaller businesses out of the market.