I disagree. Monopolies can only exist in free markets when force is applied, eg by a corporation hiring thugs or militia to restrain the free market, and the government fails to stop that use of force.
The only way a corporation can acquire de facto authority in a free market is with violence (in which case they become a competitor with the government as it regards rule of law). There is no other way they can literally hold back competitors.
The only way a corporation can acquire de facto authority in a free market is with violence (in which case they become a competitor with the government as it regards rule of law). There is no other way they can literally hold back competitors.