Many of those kinds of monopolies are not natural but enforced by violence (or threat of). In many of those cases (if not all), a free-market would produce chea

Many of those kinds of monopolies are not natural but enforced by violence (or threat of). In many of those cases (if not all), a free-market would produce cheaper, better and faster services. Being government owned or government granted monopolies makes them inefficient and mostly unaccountable to anybody, because they don't have to operate like a regular company which would otherwise provide services - that is, if they don't live up to expectations they get replaced by the competition. Often government monopolies are the worst elements of socialism and crony capitalism combined. They enrich an oligarchy of elites who in turn, bribe politicians to put more business in their direction.