While that may be a pertinent question to many, it ignores the 800lb gorilla in the room. Forget about the one guy who's better off...what do we do about the guys the employer let go? They're now unemployed. They'll file for UI. Some will get welfare. Some will say they'll shift into other jobs but unless they move to another state where the wages have not increased those jobs are in the same environment where they just lost their job. The same negative effect is happening there too. And it is precisely low wage workers that are least able to move away from that negative effect (to a state who has not ratcheted up the minimum wage). So, while the law has given some workers a slight boost, it has destroyed the jobs of others in the process...and what's worse, made some of those now unemployed workers dependent upon state benefits that are paid for by a now reduced labor pool via employment taxes. Which means, inevitably, that with the simultaneous greater demand for benefits COUPLED with the reduced taxation base...the tax rate will need to rise to cover the shortfall. And that guy who just got his $1/hr raise gets to see even less of it than he did.
The over all effect is that you have fewer and fewer low wage workers, a larger and growing dependent class and a cycle where the dependent class votes in their own self interest for politicians who pander to their wants (more and larger benefits). Eventually, the unproductive classes become the political majority and those who actually produce wealth and contribute to society are now, virtually, the political enemy.
This is nothing but economic logic that even a child who understands cause and effect can understand. The results of the study are entirely unsurprising. A business owner will not, out of the presumed goodness of their hearts, simply accept a lower standard of living because of a mandate by the state. They will seek to cut their costs and one way is to find a means to acquire production that does not demand wages. This isn't rocket science...it's effing logic. It is the basis of human freakin' rights: that you have the right to do with what you create as you like. Anything else is called slavery...which, ironically, has been tangentially in the news of late...people protesting others who think it wasn't so bad and march to say so.