The key is competition. BP compete on the global oil market. BA compete freely with other air companies. RR with other turbine manufacturers (not many of those globally!).
The semi-successful ones are the "shell company" ones: telecoms, power, and railways. The user gets a choice of who to get customer service on, which feels nicer than a government bureaucracy, but the infrastructure is a natural monopoly so the actual hardware delivering the service is mostly the same.
Electricity markets work pretty well as a market and has miraculously managed a lot of carbon transition, but is now horrendously expensive (like trains) in a way that's becoming politically important. The public are going to demand that something be done. AI power use is not helping here.
The less successful ones are the actual big capital asset ownership ones: RailTrack PLC, OpenReach, water companies, the nuclear industry.
The semi-successful ones are the "shell company" ones: telecoms, power, and railways. The user gets a choice of who to get customer service on, which feels nicer than a government bureaucracy, but the infrastructure is a natural monopoly so the actual hardware delivering the service is mostly the same.
Electricity markets work pretty well as a market and has miraculously managed a lot of carbon transition, but is now horrendously expensive (like trains) in a way that's becoming politically important. The public are going to demand that something be done. AI power use is not helping here.
The less successful ones are the actual big capital asset ownership ones: RailTrack PLC, OpenReach, water companies, the nuclear industry.