[PaywallBuster]

Walmart still have a lot of (combined) efficiencies otherwise, people would jusy shop at the local grocer if that was cheaper :)

Unlike the government, no one's forcing people to shop at walmart, and if they were loosing efficiency (charging higher due to Admin costs) people are more than welcome to move to any alternative that suits them best

[suture]

You entirely missed the point made and are addressing a different point. By the way, who is more efficient at providing healthcare to the elderly: Medicare or the private sector or charities? Private health insurers fought hard to not have to spend as little of their budgets on salary and administrative costs as Medicare.