The Impact of Seattle's Minimum Wage Increase – UW Minimum Wage Study [pdf]

That's interesting.

I'm not sure the cause and effect they show in the graphs and stats are directly relatable though, at least not entirely. There are other issues to be considered.

By 2014 the cost of living in Seattle was already driving people to look elsewhere to start a business and live and work, and we see a very similar downturn in both Seattle and the State beginning in 2017.