Thanks. It's worth noting that they're studying people 18-64 with high school or less education.

If this result stands up, it'd be very interesting to drill in and figure out what's really happening. Quite challenging, though--apparently long study hasn't even settled the question of how minimum wage affects the job market.

In this case, one could imagine all sorts of confounders. For example, maybe communities that have higher minimum wages simply have them because they're wealthier as a whole, which could in turn lead to lower suicide rates. Or perhaps a higher minimum wage leads to the most marginal workers losing their jobs, and it turns out that they're happier for it somehow.