Everyone knows that price fixing is against the law, chiefly Section 1 of the Sherman Act. Competitors may not collude, i.e., agree, to keep prices where they want them, but there are relatively new pricing platforms that some companies maintain take them out of the equation, so they do not have to share private information directly with competitors. Instead, they claim, they feed their data to a third-party which uses algorithms to come up with pricing for these competitors based on data t...