De-jure monopoly=the one we all think of (the bad one). This comes about through dirty tactics, anti-consumer practices, and backstabbing.
De-facto monopoly=the one Valve is (and not illegal). This comes about naturally as customers independently choose one company over all others for nothing other than they like them better.
I’ve seen some law nerds explain it recently as:
De-jure monopoly=the one we all think of (the bad one). This comes about through dirty tactics, anti-consumer practices, and backstabbing.
De-facto monopoly=the one Valve is (and not illegal). This comes about naturally as customers independently choose one company over all others for nothing other than they like them better.
There are natural monopolies, too: things like water and electricity utilities