Dr. Robin Goldstein is the Director of the Cannabis Economics Group and an economist in the Department of Agricultural and Resource Economics at the University of California, Davis, where he studies the legal and illegal cannabis markets, with a focus on the effects of regulations and retail prices. Dr. Daniel Sumner is the Frank H. Buck, Jr., Professor in the Department of Agricultural and Resource Economics at the University of California, Davis and the Director of the University of California Agricultural Issues Center. He participates in research, teaching, and directs an outreach program related to public issues facing agriculture. Their latest book is titled Can Legal Weed Win? The Blunt Realities of Cannabis Economics.