This is a special post for quick takes by ChristianKl. Only they can create top-level comments. Comments here also appear on the Quick Takes page and All Posts page.
One interesting way to reduce maze levels and monopoly power would be to make it harder for industries to consolidate to fewer players.
One possible policy would be to tax buying stakes in limited-liability companies by limited-liability companies. 20% might work.
Hedge funds that play a valuable economical role can do that under corporate structures that don't include limited liability. This would likely reduce the likelihood that individual hedge funds are "too big to fail". The owners of those hedge funds would then have more skin in the game.
If you have a market where you have a large company with a lot of market power but that company is run relatively badly in a world without mergers that large company will lose. With mergers, it can be possible for the badly run company to just buy off potential competitors.
I want people who are able to effectively make investments in technology to be in control of large amounts of capital instead of people who are clever about company politics and merging being in control of that much control.
We need companies like Intel who can build a 20 billion dollar microchip factory and for that reason having laws that directly forbid large companies would create a lot of damage.