Seattle just changed their minimum wage to $15 per hour (that’s the city, but not the surrounding suburbs). Tim Worstall outlines what we may see in this handy real world economic experiment:
The first and most obvious effect of a $15 an hour minimum is that there are going to be job losses. Don’t forget that the message from the academic literature is that “modest” increases in the minimum don’t seem to have “much” effect on employment levels. And we’d all agree that a $100 minimum would have rather large effects. So our puzzle here is to try to decide what is the definition of “modest”. Clearly $100 an hour isn’t. But also we can dismiss something like $1 an hour as being problematic. Since no one at all gets paid a sum that small making the minimum $1, or $1.50, has no effect on anything whatsoever.
The best result we have from the academic literature is that a minimum wage in the 40-45% region of the median wage has little to no effect on unemployment. The reason being similar to that of a $1 one. So few people get paid so little that it just doesn’t affect the wages of anyone very much. The same research tells us that once we get to 45-50% of the median wage then we do start to see significant unemployment effects.
This $15 an hour in Seattle will be around 60% of the local median wage. We would therefore expect to see reasonably large unemployment effects.
We would also expect to see unemployment among high school graduates rise very much more than the rate in general. For this minimum applies only inside the City of Seattle: it doesn’t apply to the surrounding counties or suburbs that aren’t part of that political jurisdiction. Imagine that you were a college graduate having to do some basic work to make ends meet while you were waiting for that career opening. If you’re going to get $7.25 outside Seattle and $15 inside it you’d probably be willing to make the trip each day to earn that extra. Of course, as a high school graduate you would too. But now think of yourself as the employer. You’ve got the choice of a college graduate or a high school graduate, both willing to do the same job at the same price. Who are you going to hire? Logically, the higher grade worker, that college grad.
So we would expect minimum wage jobs within Seattle to be colonised by those college grads at the expense of those high school ones. We would therefore expect to see a much larger rise in the unemployment rate of those high school grads as against the general unemployment rate. In fact, we’d expect to see this happening so strongly that we’d take the empirical evidence of that widening unemployment gap to be evidence that it was this minimum wage rise causing it.