Final answer:
NPV and IRR are important metrics for assessing the financial viability of an investment, offering insights into its profitability and efficiency. While they both aim to determine profitability, NPV gives an absolute measure, and IRR indicates the efficiency of investment. An investor should consider both, alongside the expected and actual rates of return and related risks for a comprehensive investment assessment.
Step-by-step explanation:
When comparing investment options such as projects, an investor has to assess their financial viability using various metrics, including the Net Present Value (NPV) and the Internal Rate of Return (IRR). Both NPV and IRR are crucial in understanding the expected rate of return and the associated risks of a project. NPV is the sum of the present values of incoming and outgoing cash flows over a period of time. In contrast, IRR is the discount rate that makes the NPV of all cash flows from a particular project equal to zero.
Assuming a discount rate of 10%, the NPV provides the value of expected earnings in today's dollars minus the initial investment. If NPV is positive, the project is expected to generate more value than the cost. The IRR, on the other hand, helps in understanding the efficiency of the investment by indicating the expected rate of return, balancing out both risk and opportunity cost.
While both NPV and IRR aim to determine the profitability of an investment, they can yield inconsistent results especially in projects with non-standard cash flows or multiple changes in the sign of cash flow. NPV is generally considered more reliable when evaluating mutually exclusive projects since it provides an absolute measure of profitability. IRR could be misleading in cases where it gives multiple values or when comparing projects of different sizes and timelines.
An investor should consider both NPV and IRR outcomes, alongside the associated risk such as default risk, interest rate risk, and the actual rate of return. This dual approach ensures a more informed decision-making process, factoring in monetary value, efficiency of investment, and the risk involved.