Julian Assange (a guy that has read through thousands of leaked documents) agrees with me:
Its not correct to put me in any one philosophical or economic camp, because Ive learned from many. But one is American libertarianism, market libertarianism. So as far as markets are concerned Im a libertarian, but I have enough expertise in politics and history to understand that a free market ends up as monopoly unless you force them to be free.
"Why is it necessarily a bad thing if there is only one efficient company in a particular sector?"