Learn how Harry Markowitz's Modern Portfolio Theory transformed investment strategies by focusing on diversified portfolios rather than individual stock performance.

(Bloomberg) — Harry Markowitz, a Nobel Prize-winning economist who redefined money management by showing that diversification could reduce investment risk while maximizing returns, has died. He was 95 ...

Modern portfolio theory is designed to optimize return for a given level of variance across a spectrum of investment opportunities. The ability to monitor and optimize a portfolio gives rise to the ...