Earlier quoted context omitted.
> Companies often use it to acquire other companies, which is the worst. We also used to enforce antitrust law.
> We also used to enforce antitrust law. I've been reading the Chernow biography of Rockefeller, and this simply isn't true. We've almost never enforced "anti-trust law", and it's basically never been particularly effective. The Sherman Act was widely considered a failure (even after passage in 1890). It did little/nothing to affect the fate of Standard Oil, which actually grew for a decade after passage, to over 90%…
The problem comes when you erode what was meant to be a strong antitrust law through decades of narrowing interpretations and then it's not deterring them anymore.
> the law ends up being used to punish declining companies for prior bad behavior.
The solution to this one is to take the politicians out of it and allow customers to file antitrust class actions.