Purchasing power return, a new paradigm of capital investment appraisal
Don Johnson and
Managerial Finance, 2018, vol. 44, issue 2, 241-256
Purpose - The purpose of this paper is to contribute to financial managers’ capital budgeting decision-making processes by proposing a new paradigm of capital investment appraisal. The expected return, required return structure of the proposed purchasing power return (PPR) methodology eliminates the many flaws associated with the competing internal rate of return (IRR) and modified IRR (MIRR) techniques. Design/methodology/approach - The authors provide a new framework for examining long-term investment projects through a percentage return prism. Unlike that of IRR and MIRR, mathematical consistency with net present value (NPV) is a design requirement. Findings - PPR eliminates the many flaws found in the IRR and MIRR methodologies, is mathematically consistent with NPV, and identifies positive-NPV investments forecasted to reduce the company’s purchasing power. These projects are acceptable under NPV, but flagged for additional review and potential rejection. Created to examine projects on a percentage return basis, PPR employs market-based inflation rates to convert all cash flows into constant purchasing power units of measure. From these units, an expected real return is estimated and compared to the project’s inflation-adjusted required return, resulting in an accept/reject decision consistent with that of NPV. Originality/value - The proposed PPR is a new paradigm of capital investment appraisal that eliminates the many problems found in the IRR and MIRR techniques, is mathematically consistent with the NPV method, and helps financial decision makers examine investment projects on an expected percentage return basis. PPR also flags for further review projects expected to actually reduce the company’s purchasing power.
Keywords: Net present value; Inflation-adjusted return; Internal rate of return; Modified internal rate of return; Purchasing power return; G30; G31 (search for similar items in EconPapers)
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