> [patents are not the type] of monopoly is not what I was talking about
Since you were responding to my message where I explicitly mentioned a patent-based monopoly.... I note that you also didn't bother with the govt franchise monopolies.
Instead, we have vague references to cartels and the like that are supposedly not supported by govt action but were instead "busted".
> "I'm confused why anyone would think that a govt that "busts monopolies" couldn't also support them."
>And I never suggested that a government cannot support a monopoly, or that no government has ever done so.
You'll have to take that up with the person who wrote "Given that, in the US, government intervention mostly seems to consist of busting monopolies, I'm just a bit wary of the statement that no monopoly can exist without government support."
> A single large established entity, or a group of such working together, can easily manipulate factors such as supply chains, prices paid by the ultimate customers, etc. to cripple or destroy any competition.
Can "easily" requires some support. There's one big example, standard oil, but it manipulated prices down, for both customers and suppliers.
> prices paid by the ultimate customers, etc. to cripple or destroy any competition.
The argument for monopoly profits requires that the monopoly eventually raise prices. If it can't do that because competition might come in, where's the harm?
> What's more, parts of the history of the US abound with examples of precisely that behavior -- non-governmental entities subverting or disabling the operation of the free market for their own benefit. Do you dispute this?
I dispute that more than a handful have managed to maintain high prices without govt assistance. There are, of course, many examples where high prices had govt support.