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Still Many Ways to Skin a Capital Cost

Harvard Business Review

The motivation behind it, as with many, many articles published over HBR's nearly 90-year history, was to take an effective practice developed in one corner of industry and spread it to managers everywhere. Not at all, he said, because it's "no secret that applying the CAPM is as much an art as financial science." McNulty et al.

CAPM 14
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Why Sit on All that Cash? Firms Uncertain on Cost of Capital

Harvard Business Review

In estimating the cost of equity, nearly nine out of ten organizations use the capital asset pricing model (CAPM), which calculates the cost of equity using a risk-free rate, beta factor, and a market risk premium, each of which introduces significant variability.