Looking at some kind of common denominator across the various types of conduct that's being challenged, I would say that the fundamental strategy the platforms have employed is some variation of an anti-steering restraint or what's called a most favoured nations clause.
This ensures that any broker or dealer, say an app developer or a merchant on the Amazon site who wants to go off their platform and sell their wares at a lower price is barred from doing so. That is, you cannot sell at a lower price outside of the dominant platform than you can inside the platform.
Google is doing this with anti-steering provisions. Amazon achieves this with the most favoured nations clause. They are making sure that no coalition or individual or coalition of developers or merchants could support a rival platform. If they could steer by offering their consumers lower prices for going off the dominant platform, that could engender a certain amount of multi-homing and competition across the platforms, and that in turn would force Google and Amazon to lower their take rates on app developers and merchants respectively.
They figured out that, if they can stop that sort of conduct, if they can stop the steering, then they can keep artificially high take rates. These artificially high take rates, at least with respect to Amazon, have been going up over time. They all get impounded in the price of everything you buy.
There is a lot of anti-competitive things that are going on right now, but I know I don't have time to hit them all. To me, that is the highlight, and you have to attack that. I do think that squarely falls under the antitrust ambit. We should give these antitrust cases a little chance to play out on that score.