Dr. John Coates is a former Wall Street derivatives trader turned neuroscientist. He uses his dual expertise to understand the way individuals contribute to market instability, studying the impact of biology on financial risk-taking. His new book, The Hour Between Dog and Wolf: Risk Taking, Gut Feelings and the Biology of Boom and Bust, investigates hormonal responses to stress situations on the trading floor. By sharing his observations, Coates questions the inherent assumptions of traditional economic theory. He casts doubt on the notion of finance as a purely rational art, where the human mind is the sole actor in a process from which biology is absent. Instead, he recommends that industry insiders begin to take into account the complementarity of mind and body.