American hedge fund manager, head of fixed-income trading and was promoted to vice-chairman in 1988. Michael Bloomberg, former mayor of New York City (2002-2013), head of equity trading and systems development in the 1970s. John Lipsky, acting managing director of the International Monetary Fund from May to July 2011, former director of European Economic and Market Analysis Group until 1992. Lewis Ranieri, "father" of mortgage-backed securities, headed the mortgage bonds desk at Salomon and reached the post of vice chairman. John Gutfreund, former chairman and CEO of Salomon Brothers who made the firm public. Myron Scholes, economist who invented the Black–Scholes model, recipient of the Nobel Memorial Prize in Economic Sciences in 1997, former managing director of fixed-income derivatives. Gedale B. Horowitz, founder and chairman of the Public Securities Association and Securities Industry Association, founding chairman of the Municipal Securities Rulemaking Board, member of the firm's executive committee. Michael Corbat, CEO of Citigroup from 2012 to 2021, began his career in the mortgage department in 1983. References Further reading Liar’s Poker: Rising Through the Wreckage on Wall Street by Michael Lewis. Penguin Books Citigroup Defunct financial services companies of the United States American companies established in 1910 Financial services companies established in 1910 Banks established in 1910 Financial services companies disestablished in 1998 Banks disestablished in 1998 Former investment banks of the United States Companies based in New York City