I am frequently asked, “How high can the minimum wage go without jeopardizing employment of low-wage workers? And at what level would further minimum wage increases result in more job losses than wage gains, lowering the earnings of low-wage workers as a whole?”
Although available research cannot precisely answer these questions, I am confident that a federal minimum wage that rises to around $12 an hour over the next five years or so would not have a meaningful negative effect on United States employment. One reason for this judgment is that around 140 research projects commissioned by Britain’s independent Low Pay Commission have found that the minimum wage “has led to higher than average wage increases for the lowest paid, with little evidence of adverse effects on employment or the economy.” A $12-per-hour minimum wage in the United States phased in over several years would be in the same ballpark as Britain’s minimum wage today.
Here's the faux liberal part where they don't endorse $15 an hour like the oh so progressive Green party.
But $15 an hour is beyond international experience, and could well be counterproductive. Although some high-wage cities and states could probably absorb a $15-an-hour minimum wage with little or no job loss, it is far from clear that the same could be said for every state, city and town in the United States.