Otimização de portfólios de comercialização de energia no Brasil
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2017-05-22
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Gonçalves, Edson Daniel Lopes
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The portfolio optimization analysis for quite some time was built around the variance measure. This approach is adequate when the assets returns are normaly distributed. However, in asymmetric or heavy-tailed distributions, the same weight cannot be given to the two tails of the distribution, what requires the use of other risk measures. One of the most known and widespread is VaR, but it cannot capture extreme events, is not a coherent measure and has optimization problems. For these reasons, the dissertation addresses the CVaR on the portfolio optimization for the Brazilian electric power sector.