Antitrust and anticompetitive behavior continue to evolve. Back when the Sherman Act was passed, we were talking about backroom deals in smoke-filled rooms. One of the more important ways of recent years is where all or most competitors in a market use the same software that outputs the same value as to what they should charge. This is effective collusion even if it isn't explicit. The goal of such software is to raise prices. You raise prices by effectively or actually colluding with other market participants.

The posterchild for this is RealPage [1]. But you're going to see this pop up in every aspect of life, such as gas prices [2] and meat processing [3].

The whole thing is kind of depressing because this is what "innovation" is now: fancy ways to collude on prices.

[1]: https://www.justice.gov/archives/opa/pr/justice-department-s...

[2]: https://abcnews.com/US/wireStory/ai-helping-gas-stations-col...

[3]: https://www.justice.gov/opa/pr/justice-department-requires-a...