Contributive Alpha as the Basis for Investment Performance Attribution
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If the foundations of investment performance attribution models are examined, it shows that traditional attribution analysis using arithmetic or geometric excess return does not reveal how a portfolio’s return was achieved. It is argued that contribution alpha is an alternative measure for the return from active management that appears to be a more compelling basis for investment portfolio attribution models.
Author: John F. Mathias, Ph.D.
If the foundations of investment performance attribution models are examined, it shows that traditional attribution analysis using arithmetic or geometric excess return does not reveal how a portfolio's return was achieved. It is argued that contribution alpha is an alternative measure for the return from active management that appears to be a more compelling basis for investment portfolio attribution models.
