Genuinely curious: if employers are simply cutting back hours to save paying the extra wages, what's happening with those hours that aren't staffed anymore?

One possibility is that the businesses were already overpaying for labor by staffing more employees for more hours than were needed. But that just turns a minimum-wage hike into a convenient excuse to roll back hours/staff (much as economic downturns tend to be used as a cover for companies to lay off people they no longer needed anyway).

Another possibility is that more hours are being assigned to salaried employees since it doesn't cost extra to have them work more. But that would actually be a good thing -- it would increase the demand for salaried full-time employees, and being a salaried full-time employee is much better than being a minimum-wage hourly employee.

Another possibility is that businesses are just closing down more often rather than pay people to keep things operating. But that seems unlikely.

So what's actually happening?