The mean-variance optimization suggested by Henry Markowitz represents a path-breaking work, the beginning of the so-called Modern Portfolio Theory. This theory has been criticized by some researchers ...

The Journal of Finance, Vol. 41, No. 5 (Dec., 1986), pp. 1051-1068 (18 pages) Duality theory is employed to provide necessary and sufficient conditions for portfolios on the minimum-variance frontier ...

How right Portfolio Management helps us to achieve better returns. Stock selection is not the most important thing in investing: avoid trying to find the next Apple. The stock market is not a "become ...

This article originally appeared in the fall 2019 issue of Morningstar Magazine. To learn more about Morningstar Magazine, please visit our corporate website. The Capital Asset Pricing Model is one of ...

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