Nick Hanauer is a billionaire venture capitalist.
See his comments here.
https://www.facebook.com/NickHanauer/vid...813273503/

And you can download the pdf of the study here.
http://www.nelp.org/publication/raise-wa...nt-levels/
RAISE WAGES, KILL JOBS? SEVEN DECADES OF HISTORICAL DATA FIND NO CORRELATION BETWEEN MINIMUM WAGE INCREASES AND EMPLOYMENT LEVELS