Grinols is an economist and the expert on casino economics. The book also shows how amenity benefits - for casinos, the benefit to consumers of closer proximity - enter the evaluation.is gambling illegal in tennessee NPR THIS AMERICAN LIFE GAMBLING "Earl L. Grinols is clearly a man of great influence on significant American decision-makers. Gambling in America is a personal quest - a worthy, earnest and. Gambling in America has 5 ratings and 1 review. Stephen said: The best book on econometrics of legalized gambling. The author, Distinguished Professor of. A review of Professor Earl L Grinols' book "Gambling in America: Costs and Benefits".