Salomon Brothers, Inc., was an American multinational bulge bracket investment bank headquartered in New York City. It was one of the five largest investment banking enterprises in the United States and a very profitable firm on Wall Street during the 1980s and 1990s. Its CEO and chairman at that time, John Gutfreund, was nicknamed "the King of Wall Street".

Michael Monroe Lewis is an American author and financial journalist. He has also been a contributing editor to Vanity Fair since 2009, writing mostly on business, finance, and economics. He is known for his nonfiction work, particularly his coverage of financial crises and behavioral finance.