What is the primary disadvantage of the payback period method for asset evaluation?

• A. It is difficult to explain to non-financial managers
• B. It is difficult to calculate
• C. It ignores the time value of money
• D. It ignores the historical cost of the asset

Answer: (C)

The main idea being tested is how the payback period treats the timing of cash inflows. Its primary drawback is that it ignores the time value of money. In finance, a dollar today is worth more than a dollar tomorrow because it can earn interest and keep pace with inflation and risk. The payback method simply adds undiscounted cash inflows to see how long it takes to recover the initial investment, so it treats cash received in year 1 the same as cash received in year 5. That can mislead because two projects might have the same payback period but very different value when you consider when funds actually arrive. A project with sizable early returns could look attractive even if its total profitability is poor, while a project with substantial long-term cash flows (which would boost value when you account for time value) might be undervalued or rejected. Methods like net present value or internal rate of return address this by discounting future cash flows to their present value, giving a true sense of overall profitability. The other statements don’t capture this fundamental issue—the method is typically simple to calculate and explain, and it doesn’t hinge on historical cost considerations.