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by js8 1117 days ago
> It doesn't require active collusion. This is one of the things that many people fail to understand

Exactly. Interested people should look up Keen & Standish critique of the theory of the firm (e.g. http://www.paecon.net/PAEReview/issue53/KeenStandish53.pdf), they have a really nice and simple computer simulation where competing firms collude only on the basis of knowing the current price, without even being aware of each other's existence.