Here is something I don't understand. There may be some subsidizing, but if the city had previously granted monopolies, isn't a bit of help to newcomers required to undo the effect of the monopolization?

I mean, if there is a huge infrastructure built via a monopoly subsidy, including existing leases on the right of ways etc, which the former monopoly will fight to keep exclusive, doesn't this provide unfair advantage resulting from the city's previous subsidy? If on the other hand they provide a bit of a leg up, to jumpstart competition, and help reduce the overwhelming advantage they previously caused, isn't that just undoing/fixing the mistake?