What are the limitations of using the equivalent annual cost (EAC) as a capital budgeting criterion?

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What are the limitations of using the equivalent annual cost (EAC) as a capital budgeting criterion?

The equivalent annual cost (EAC) is a capital budgeting criterion that is used to evaluate and compare different investment projects by converting their costs and benefits into an equivalent annual amount. While the EAC is a useful tool for decision-making, it also has certain limitations that need to be considered. Some of the limitations of using the EAC as a capital budgeting criterion are as follows:

1. Assumptions and estimates: The calculation of the EAC requires making assumptions and estimates about various factors such as the project's useful life, discount rate, and cash flows. These assumptions may not always accurately reflect the actual conditions, leading to potential errors in the EAC calculation.

2. Sensitivity to discount rate: The EAC is highly sensitive to the discount rate used in its calculation. A small change in the discount rate can significantly impact the EAC value, potentially altering the ranking of investment projects. This sensitivity makes the EAC criterion less reliable when comparing projects with different risk profiles or when the discount rate is uncertain.

3. Ignores timing of cash flows: The EAC treats all cash flows as if they occur evenly over the project's useful life. However, in reality, cash flows may be unevenly distributed, with higher cash flows occurring in the early or later years of the project. The EAC fails to consider the time value of money and the impact of cash flow timing on the project's profitability.

4. Ignores project size: The EAC does not take into account the size or scale of the investment project. It treats all projects as if they have the same size, which may not be the case in reality. This limitation can lead to incorrect investment decisions, especially when comparing projects of different sizes.

5. Limited scope: The EAC focuses solely on financial costs and benefits and does not consider non-financial factors such as environmental impact, social implications, or strategic alignment. These non-financial factors are often crucial in making investment decisions, and the EAC may not provide a comprehensive evaluation of the project's overall value.

6. Lack of flexibility: The EAC assumes that the investment project will be carried out as planned without considering the possibility of changes or modifications during its useful life. This lack of flexibility can be a limitation when dealing with projects that are subject to uncertainties or changing market conditions.

In conclusion, while the equivalent annual cost (EAC) is a commonly used capital budgeting criterion, it has several limitations that need to be considered. These limitations include assumptions and estimates, sensitivity to discount rate, ignorance of cash flow timing and project size, limited scope, and lack of flexibility. It is important for decision-makers to be aware of these limitations and consider them alongside other evaluation methods to make informed investment decisions.