In research that Wolfram Schlenker and I have conducted using the Hadley III climate model, we project yield declines of about 20% over the next 20 years, holding all else the same.

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My Greenblatt-based model likes its 30.6% earnings yield and 63.7% return on capital.

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In my Greenblatt model, I calculate return on capital and earnings yield in the same ways that Greenblatt lays out in his book.

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This simple, risk-averse model is built on market niche differentiation that has resulted in accretive dividend yield.

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Markowitz built a diversified portfolio model that assumed that the portfolio structure would be located on the frontier point that would yield maximum utility.

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