Abstract

The calculation of variance is defined as a objective and increasing function, this definition allows establish the hypotheses to calculate diversified investment portfolios from the dominion of the function. In order to apply these hypotheses our mathematical multi-objective linear model is modified. Diversified portfolios are selected from the stocks of the Prices and Quotations Index of the Mexican Stock Exchange. It is shown with a statistical test using the coefficient of variation that the selected portfolio yields a higher profit at a lower risk.

Keywords:

Investment portfolio, Mexican stock exchange, number theory,

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Competing interests

The authors have no competing interests.

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