What is the internal rate of return and how is it used?

What is the internal rate of return and how is it used?

• A. IRR is the discount rate making NPV zero; compare to hurdle rate to decide.
• B. IRR is the total cash inflow from a project.
• C. IRR is the annual interest rate on a loan used to fund the project.
• D. IRR is the break-even sales volume.

Answer: (A)

Internal rate of return is the discount rate that makes the project's net present value equal to zero. It’s a way to express the profitability of an investment as a percentage, reflecting the rate of return implied by the project’s cash flows. In practice you calculate the IRR and compare it to a hurdle rate or required return set by the firm. If the IRR exceeds the hurdle rate, the project is expected to add value and is typically pursued; if it’s below, it’s usually rejected. This comparison helps you evaluate diverse projects on a consistent basis, especially when capital is limited and you must choose among alternatives. Remember, IRR carries some caveats: it assumes the intermediate cash inflows are reinvested at the same rate as the IRR, which isn’t always realistic, and with nonstandard cash flows you can run into multiple IRRs or misleading results. In contrast, net present value provides the dollar value added and doesn’t rely on reinvestment at the IRR, making it a useful complementary measure. The other descriptions—total cash inflow, loan interest rate, or break-even volume—describe different concepts and do not define what IRR measures.

Internal rate of return is the discount rate that makes the project's net present value equal to zero. It’s a way to express the profitability of an investment as a percentage, reflecting the rate of return implied by the project’s cash flows.

In practice you calculate the IRR and compare it to a hurdle rate or required return set by the firm. If the IRR exceeds the hurdle rate, the project is expected to add value and is typically pursued; if it’s below, it’s usually rejected. This comparison helps you evaluate diverse projects on a consistent basis, especially when capital is limited and you must choose among alternatives.

Remember, IRR carries some caveats: it assumes the intermediate cash inflows are reinvested at the same rate as the IRR, which isn’t always realistic, and with nonstandard cash flows you can run into multiple IRRs or misleading results. In contrast, net present value provides the dollar value added and doesn’t rely on reinvestment at the IRR, making it a useful complementary measure. The other descriptions—total cash inflow, loan interest rate, or break-even volume—describe different concepts and do not define what IRR measures.