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Is It Time To Reconsider The Semivariance Again? A Note, Ladd Kochman
Is It Time To Reconsider The Semivariance Again? A Note, Ladd Kochman
Ladd Kochman
Building on the assumption that stock returns are less-than-symmetric, the semivariances (SV) are computed for 14 domestic and foreign stock indices as well as their respective arithmetic means (AM) and standard deviations (SD) and hypotheses that the correlation between SVs and AMs will be both positive and greater than the correlation between SDs and AMs.
The Why And How Of Mutual Fund Standard Deviations, Ladd Kochman, Randy Goodwin
The Why And How Of Mutual Fund Standard Deviations, Ladd Kochman, Randy Goodwin
Ladd Kochman
To the interested observer, mutual fund standard deviations raise two tantalizing questions: Are standard deviations relevant when funds, by definition, eliminate the unsystematic component of total risk? and How can two respected giants in the investments field like Fidelity and Morningstar use the same returns, intervals and measurement period for the same fund and end up with glaringly different standard deviations? To answer the question of relevance, we recall Evans and Archer's (1968) argument that as much as 90 percent of a portfolio's unsystematic risk can be diversified away with 12 to 18 stocks. Since that diversifiable risk is a …