>If a business doesn't pay a living wage, that effectively means that said business is being subsidized by a different entity. It could be the employee, the employee's spouse, the government, etc. But someone is subsidizing businesses that don't pay living wages.

I never understood this framing. If the person in question wasn't being employed, it's not as if he suddenly won't need food/housing/whatever, so why call it a subsidy when he decides to get a job?