William Sharpe American economist Date of Birth: 16.06.1934 Country: USA

1. Biography of William Sharpe
2. Early Life and Education
3. Academic Career and Contributions
4. Consulting and Later Career

Biography of William Sharpe

William Sharpe, an American economist, is a professor of finance at the Graduate School of Business at Stanford University. He was awarded the Nobel Prize in Economics in 1990 for his work on the theory of financial economics. Sharpe is one of the creators of the Capital Asset Pricing Model (CAPM) and the creator of the Sharpe ratio, which measures how well an investor's return on an asset compensates for the risk taken. He also contributed to the development of the binomial option pricing model.

Early Life and Education

William Sharpe was born on June 16, 1934, in Boston, Massachusetts. His father served in the National Guard, which led to frequent relocations for the Sharpe family during World War II until they settled in Riverside, California. In 1951, Sharpe enrolled at the University of California, Berkeley, with plans to become a doctor. However, he switched to business administration after a year and transferred to the University of California, Los Angeles. It was during his student years that Sharpe was influenced by Armen Alchian, an economics professor, who became his mentor. He also listened to J. Fred Weston, a finance professor, who introduced him to the works of Harry Markowitz on portfolio theory. Sharpe received his bachelor's degree in 1955 and a master's degree in humanities a year later. He immediately started conducting research as a member of the RAND Corporation, an influential think tank.

Academic Career and Contributions

Sharpe earned his Ph.D. in 1961, defending a dissertation on the single-factor security market model. After completing his Ph.D., he started teaching at the University of Washington. In 1962, he submitted his work on asset pricing models to the Journal of Finance. Initially, his work was rejected, but Sharpe persisted in emphasizing the importance of CAPM. The journal changed its decision by 1964 and finally published his work. During the same period, CAPM was independently developed by John Lintner, Jan Mossin, and Jack Treynor. In 1968, Sharpe began teaching at the University of California, Irvine, but he only stayed there for a couple of years. In 1970, he joined Stanford University as a professor of finance.

Consulting and Later Career

While teaching, Sharpe continued his research on investments, focusing on topics such as portfolio formation and investment funds. He also began actively participating in the investment process, providing consultations to financial conglomerate Merrill Lynch and banking company Wells Fargo. This experience allowed Sharpe to practically test the effectiveness of financial theory. In 1986, he co-founded Sharpe-Russell Research with the participation of the Frank Russell Company. The firm specialized in research and consulting on asset allocation in commercial and pension funds. By 1989, Sharpe stopped teaching and focused entirely on his consulting firm, now known as William F. Sharpe Associates.

William Sharpe's contributions to the field of finance and his practical experience in investment consulting have made him a highly respected figure in the industry. His groundbreaking work on CAPM and the Sharpe ratio continues to be widely used by economists and investors worldwide.