Weaknesses of the IRR Method: The Internal Rate of Return (IRR) is considered as the discount rate that makes a cash flow's net value equal zero and it's the most useful means of project evaluations. Actually, the IRR method is one of the most widely used methods of measuring project worth as well as economic and financial analysis by many institutions like the World Bank. This is because this method represents the average earning power of monies used in a project over the entire life of the project making it to be referred to as yield of the investment in certain situations. In most cases, the computation of the internal rate of return method for project evaluation incorporates a trial and error method. The main rule when evaluating a project using this method is to acknowledge all investments in cases where the internal rate of return is higher than the opportunity cost of capital. Moreover, the internal rate of return is an...

The other advantage of this method is that the measure in the financial community also acknowledges the time value of money. Consequently, this measure offers excellent guidance of the value of a project when used properly. However, the use of the internal rate of return in project evaluation also has several weaknesses including:
Multiple Rates of Return:

This is one of the major weaknesses or pitfalls of using the internal rate of return method in the evaluation of projects since it's likely to have multiple or no IRRs. The possibility of the project to have multiple IRRs or no IRR occurs when the project being…