Professors David Just and Brian Wansink of Cornell's Charles H. Dyson School of Applied Economics and Management, re-examined national data from 2007 to 2008 describing people's food habits based on their body mass index (BMI).
They discovered, that for all but the most overweight and underweight individuals, the consumption of soda, candy and fast food showed no link to BMI.
I've been interested in the correlation between food prices and obesity rates for a while (for example, see here). Now Cornell 'scientists' Just and Wansink (economists) seem to be supporting a contention I have made for a while: obesity rates are higher when calories are cheaper (demand slopes downward). So I am now in the process of writing the economists' guide to lower BMI. The book will be relatively short--2 pages. Page 1 will include a summary of all of the scientific data to date on the relationship between obesity and caloric intake: "EAT LESS." Page 2 will include all of the evidence on the relationship between obesity and physical activity: "EXERCISE MORE."
I think I have a bestseller on my hands.