Despite its simplicity and popularity, the payback period also has some significant disadvantages that limit its reliability and validity as a decision criterion. One of the main disadvantages of the payback period is that it ignores the time value of money. The payback period treats all cash flows as if they occur at the end of each year, without discounting them to their present value. This means that the payback period does not account for the opportunity cost of capital, inflation, or interest rates. Another disadvantage of the payback period is that it ignores the cash flows that occur after the payback period. The payback period does not consider the profitability or return on investment of the project beyond the breakeven point. This means that the payback period may favor projects that have shorter but lower cash flows over projects that have longer but higher cash flows. A third disadvantage of the payback period is that it may be influenced by arbitrary cutoff points. The payback period requires a predetermined acceptable payback period, which may vary depending on the industry, the firm, or the manager. However, there is no objective or rational basis for choosing a specific payback period, and different cutoff points may lead to different decisions.