Rather than a monopoly, I'd say it takes 2 things (that are often present in monopolies):
1) Big piles of money
2) Enough of a moat that there's no immediate threat from competition
#2 drives a lot of the desire to innovate, the hope being that by the time competition catches up, you've got so much new stuff that they're back where they started.
The closest thing I can think of in the tech space now is Apple with consumer hardware moat. The other big players are still cannibalizing and copying each other's business segments.
1) Big piles of money 2) Enough of a moat that there's no immediate threat from competition
#2 drives a lot of the desire to innovate, the hope being that by the time competition catches up, you've got so much new stuff that they're back where they started.
The closest thing I can think of in the tech space now is Apple with consumer hardware moat. The other big players are still cannibalizing and copying each other's business segments.