Markowitz model

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A method of selecting the optimum investment portfolio, devised by H. M. Markowitz (1927– ) and for which he received the Nobel prize in Economics in 1990. It assumes that investors are interested in the average return on a risky investment and the standard deviation of those returns. Investors are risk-averse, which means they like higher returns and dislike higher standard deviations of returns. It concludes that investors should diversify as widely as possible and decide the level of risk and return they choose by the proportions they borrow, lend, and invest in risky assets.

Subjects: Financial Institutions and Services.

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