In other words, enforced by an overarching party, regardless how you imagine the enforcement taking place.
And there are many situations where a collective 'reputation' system isn't an appropriate tool - such as when a party has the resources for self-sufficiency (or simply considers the reputation drop 'worth' it), or no contract is being undertaken in the first place. You essentially ignored the tragedy of the commons. >And< the sale of the market.
I want to thank you for your response, but with all due respect, this sounds like exactly the dogmatic handwaving I was referring to. Perhaps things aren't being explained to me in a way I am able to understand? Aside from the fact that a governing body is a government, exactly how does a reputation system prevent the tragedy of the commons? How does it prevent the sale of the market - ie - it's own co-option?
Again, with all due respect, I can't help feeling that libertarianism is inherently short-sighted and hypocritical political view, driven more by cognitive dissonance and the effect of desire on perception inherent to human psychology. I very open to being disabused of this perception, if someone can address the two issues I have brought up.
You simply can't have, and also not have, a government, no matter how enforcement is performed.