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A Refresher on Internal Rate of Return

Harvard Business Review

There are a variety of methods you can use to calculate ROI — net present value , payback, breakeven — and internal rate of return , or IRR. The IRR is the rate at which the project breaks even. According to Knight, it’s commonly used by financial analysts in conjunction with net present value, or NPV.

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Lafley’s P&G Brand Cull and the 80/20 Rule

Harvard Business Review

The demands of 80/20 criteria shifts the innovation emphasis away from more traditional financial metrics around DCF , IRR , and NPV and toward better understanding of how novelty preserves, protects, and extends the 80/20 franchise.

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