If businesses can't afford to pay the extra. And have to cut hours or jobs to do it, then the business is close to folding anyway right?
I mean are they purposefully hiring more people than they need while at the same time struggling to pay for it? The work still needs doing, so if they cut hours, who does it?
Thats a very simple way of looking at things, so will give some simple answers...
1. Not all work that needs doing is now worth paying someone to do at the new pay level. Either it will become part of someone elses job to do, done in a different way or not done at all.
2. If you employ say 10,000 people on minimum wage and the company is running on tight margins, then you can see how much this sort of change will affect them.