One should note that the unemployment rate in Seattle has dropped so low that it has now reached Massachusetts Miracle territory, albeit for reasons unrelated to the minimum wage. In the city's white-hot economy, restaurants are having a hard time finding help due to the tightness of the labor market, and are essentaily forced by the laws of supply and demand to pay employees significantly more as a result, regardless of the legal minimum wage. Keynes would have a field day. And this alone could potentially account for the anomalous results in this yet-to-be-peer-reviewed study that should essentially be considered a radical outlier in the field.
With the issue of the minimum wage now in the spotlight again, we must keep in mind that the whole debate is a giant workaround. Thus, I will let the late great Buckminster Fuller answer the question:
"We should do away with the absolutely specious notion that everybody has to earn a living. It is a fact today that one in ten thousand of us can make a technological breakthrough capable of supporting all the rest. The youth of today are absolutely right in recognizing this nonsense of earning a living. We keep inventing jobs because of this false idea that everybody has to be employed at some kind of drudgery because, according to Malthusian Darwinian theory he must justify his right to exist. So we have inspectors of inspectors and people making instruments for inspectors to inspect inspectors. The true business of people should be to go back to school and think about whatever it was they were thinking about before somebody came along and told them they had to earn a living."
And he said this back in 1970, mind you. With today's technology, it would apply *a fortiori* to our time, if it weren't for the greedy oligarchs who siphoned up all the labor productivity gains since then. How do we put his plan into action, you ask? A Universal Basic Income Guarantee for all is the best and most efficient way to do it. Until then, by all means, raise the minimum wage. Fight for $15! But the root of the problem ultimately needs to be tackled as well, especially in a world of increasing automation and globalization.