Harry M. Markowitz

 is the father of Modern Portfolio Theory (MPT) and the concept of the efficient frontier. .

Markewitz laid the foundation for what is now termed portfolio theory in his 1952 paper, Portfolio Selection. While working for the Cowles Commission, Markewitz developed his ideas in his book, Portfolio Selection: Efficient Diversification of Investment, published in 1959.

Currently, Markewitz is on the faculty of the Rady School of Management at UC San Diego, where he also does consulting work.

Awards
In 1989, Markewitz was awarded the John von Neumann Theory Prize. The prize is "awarded annually to a scholar (or scholars in the case of joint work) who has made fundamental, sustained contributions to theory in operations research and the management sciences."

In 1990, Markewitz was awarded the Nobel Memorial Prize in Economics.