Thanks for the link. I wonder if this journal is constrained to observing gambling rather than doing experiments to trying to exacerbate it as Harrah's is doing: "The Journal of Gambling Studies is an interdisciplinary forum for research and discussion of the many and varied aspects of gambling behavior, both controlled and pathological. Coverage extends to the wide range of attendant and resultant problems, including alcoholism, suicide, crime, and a number of other mental health concerns."