Comment by cowpig

A simple law that I think would solve a lot of the perverse incentives that exist in platform economies:

Make it illegal to compete on your own platform.

Amazon would no longer be allowed to sell products on Amazon. Google would no longer be allowed to promote its own services on Google. etc..

It's pretty obvious to me that platforms are natural monopolies: the best platform experience is where there's just one and it has all the inventory.

I wonder what the side-effects of a law like this would be? Would it create new problems I'm not thinking of?