Nudge (book) nudge?" Nudge (book) Nudge: Improving Decisions about Health, Wealth, and Happiness is a book written by University of Chicago economist Richard H. Thaler and Harvard Law School Professor Cass R. Sunstein, first published in 2008. The book draws on research in psychology and behavioral economics to defend libertarian paternalism and active engineering of choice architecture. The book received largely positive reviews. "The Guardian" described it as "never intimidating, always amusing and elucidating: a jolly economic romp but with serious lessons within." It was named one of the best books of 2008 by "The Economist". One of the main justifications for
It Was Written not ready for the more prophetic themes of "Nastradamus", as it only sold 232,000 copies by its first week (less than half of "I Am…"s first-week figures). By 2001, "Illmatic" and "It Was Written" were both selling at a rate of over 3,000 copies a week, while "Nastradamus" was earning an average of little more than 2,000 copies a week, despite its relative newness. Both "I Am…" and "Nastradamus" received further criticism for their commercially oriented sound. Reflecting this widespread perception in the hip hop community and adding to his ongoing feud with Jay-Z at the time, Jay-Z mocked him