Yes, but economic efficiency measures profit, not "number of packages shipped per dollar". Also that metric may not even be meaningful in isolation and optimizing for it may lead to worse (social) outcomes.
The problem with Medicare in the US isn't that Medicare is inefficient. The problem with Medicare in the US is that the US has a private healthcare system and Medicare exists on top of it. A universal public healthcare system wouldn't perform the same way in terms of bang for the buck because the dynamics would be very different.
The problem with Medicare in the US isn't that Medicare is inefficient. The problem with Medicare in the US is that the US has a private healthcare system and Medicare exists on top of it. A universal public healthcare system wouldn't perform the same way in terms of bang for the buck because the dynamics would be very different.