TGG Group is the parent of three divisions: TGG, The Greatest Good and TGG Ventures. TGG Group businesses use behavioral science, field experimentation and advanced techniques in separating causation from correlation to create tangible and measurable results for our clients. Our founders are an elite group of leading economists, including Andrew Rosenfield, a pioneer in using economics to analyze legal and business issues, Steven Levitt, author of the best-selling Freakonomics books, Daniel Kahneman, a Nobel Laureate and expert in behavioral science, and John List, the world's foremost experimental economist.