Apr 17, 2011 · As recounted in Portfolio Theory is Dead, Now What?, the minimum variance portfolio is the optimal portfolio in a world with zero risk premium….
This is an article demonstrating the benefit of the 529 savings plan compared against other potential choices for your child’s college savings….
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where $w$ is the vector of portfolio weights, $Sigma$ is the variance-covariance matrix of the assets, and $iota$ is an appropriately-sized vector of ones….