Why do IRR and NPV rank the two projects differently?

NPV and IRR could rank mutually exclusive projects differently **because of different scales and lives leading to confusion in selection**. This is because both implicitly assume reinvestment of returns at their own rates (i.e., r% for NPV and IRR% for IRR).

Do NPV and IRR give identical results?

Both NPV and IRR methods would **show similar results** in terms of accept or reject decisions in the following cases: The projects which have positive net present value, obviously, also have an internal rate of return higher than the required rate of return.

Under what circumstances do NPV and IRR differ?

**Comparison Chart**

Basis for Comparison | NPV | IRR |
---|---|---|

Decision Making | It makes decision making easy. | It does not help in decision making |

Rate for reinvestment of intermediate cash flows | Cost of capital rate | Internal rate of return |

Variation in the cash outflow timing | Will not affect NPV | Will show negative or multiple IRR |

## Related Question Why do NPV and IRR give different results?

### What is the similarities between NPV and IRR?

Similarities between IRR and NPV

They will only differ based on their minimum rate of return on the market. Both IRR and NPV use the discounted cash flow method. The two methods also recognize the time value of money and consider the cash flow throughout the project or investment life cycle.

### Why changes in the cost of capital can cause conflicting results using NPV and IRR methods?

The conflict either arises due to relative size of the project or due to the different cash flow distribution of the projects. Since NPV is an absolute measure, it will rank a project adding more dollar value higher regardless of the initial investment required.

### Is higher NPV better?

A positive NPV means the investment is worthwhile, an NPV of 0 means the inflows equal the outflows, and a negative NPV means the investment is not good for the investor.

### Under what conditions would you expect the NPV and internal rate of return IRR rules to result in the same accept or reject decision?

The decision rule for NPV is to accept the project if the NPV is positive and reject the project if the NPV is NPV is negative. The decision rule for IRR is to accept the project if the IRR equals or is greater than the required rate of return and reject the project if the IRR is less than the required rate of return.

### What is difference between IRR and ARR?

IRR is a discounted cash flow method, while ARR is a non-discounted cash flow method. Therefore, IRR reflects changes in the value of project cash flows over time, while ARR assumes the value of future cash flows remain unchanged.

### What is the major disadvantage to NPV and IRR?

Disadvantages. It might not give you accurate decision when the two or more projects are of unequal life. It will not give clarity on how long a project or investment will generate positive NPV due to simple calculation.

### Why does IRR set NPV to zero?

IRR is a discount rate that makes the net present value (NPV) of all cash flows equal to zero in a discounted cash flow analysis. IRR calculations rely on the same formula as NPV does. Keep in mind that IRR is not the actual dollar value of the project. It is the annual return that makes the NPV equal to zero.

### Why does NPV change?

NPV is the sum of all the discounted future cash flows. Because of its simplicity, NPV is a useful tool to determine whether a project or investment will result in a net profit or a loss.

Use in decision making.

If | It means | Then |
---|---|---|

NPV > 0 | the investment would add value to the firm | the project may be accepted |

### What does a high NPV mean?

A positive NPV indicates that the projected earnings generated by a project or investment—in present dollars—exceeds the anticipated costs, also in present dollars. It is assumed that an investment with a positive NPV will be profitable. An investment with a negative NPV will result in a net loss.

### Does IRR decrease over time?

The internal rate of return measures the return on the outstanding “internal” investment amount remaining in an investment for each period it is invested. The outstanding internal investment, as demonstrated above, can increase or decrease over the holding period.

### What value of IRR is good?

For example, a good IRR in real estate is generally 18% or above, but maybe a real estate investment has an IRR of 20%. If the company's cost of capital is 22%, then the investment won't add value to the company. The IRR is always compared to the cost of capital, as well as to industry averages.

### What are the advantages and disadvantages of NPV?

Advantages and disadvantages of NPV

NPV Advantages | NPV Disadvantages |
---|---|

Incorporates time value of money. | Accuracy depends on quality of inputs. |

Simple way to determine if a project delivers value. | Not useful for comparing projects of different sizes, as the largest projects typically generate highest returns. |

### Why is NPV so important?

The most important feature of the net present value method is that it is based on the idea that dollars received in the future are worth less than dollars in the bank today. The NPV method produces a dollar amount that indicates how much value the project will create for the company.

### Why do we need IRR?

Companies use IRR to determine if an investment, project or expenditure was worthwhile. Calculating the IRR will show if your company made or lost money on a project. The IRR makes it easy to measure the profitability of your investment and to compare one investment's profitability to another.

### Which is better NPV or pi?

Actually, both measures consider an investment property's future CASH FLOW. However, net present value gives you the dollar difference, while the profitability index gives the ratio.

### Which is better IRR or ARR?

The main disadvantage of ARR is actually the advantage of IRR. As it considers the time value of money, it is considered more accurate than ARR. Its disadvantage being that it is complex to calculate and that it can give erroneous results if there are negative cash flows during the project's life.

### What is NPV and PI?

Net present value tells us what a stream of cash flows is worth based on a discount rate, or the rate of return needed to justify an investment. The profitability index helps make it possible to directly compare the NPV of one project to the NPV of another to find the project that offers the best rate of return.

### What is IRR and its advantages and disadvantages?

The advantages and disadvantages of the internal rate of return method make it easy to compare some projects. In return, certain decisions may be easier to make. It must also be remembered that the information the IRR provides is somewhat limited and should only be used to compare projects of similar size and scope.

### What does a negative NPV mean for IRR?

IRR of a given series of cash flows is calculated by discounting them at such rate so that the NPV is zero. Therefore higher the IRR (discounting rate), the lower will be the NPV value even falling below zero( both are inversely related). Negative NPV implies a 'no-go' investment as expected returns at not delivered.

### Can NPV be positive and IRR less than discount rate?

Notice that when the discount rate is lower than the internal rate of return, our NPV is positive (as shown in the first example above). If our required rate of return (discount rate) is higher than the IRR, then that means we want to earn more on the set of cash flows that we actually earn (the IRR).

### What happens when IRR is negative?

Negative IRR indicates that the sum of post-investment cash flows is less than the initial investment; i.e. the non-discounted cash flows add up to a value which is less than the investment. It simply means that the cost of capital or discount rate is more than the project IRR.

### What does NPV 0 indicate?

If a project's NPV is neutral (= 0), the project is not expected to result in any significant gain or loss for the company. With a neutral NPV, management uses non-monetary factors, such as intangible benefits created, to decide on the investment.

### When NPV is equal to zero it means?

having a Net Present Value equal to zero means that the sum of the expected cash flow of the project is zero. This means that the project won't produce any positive cash flow once accounted for the initial investment.

### When NPV is positive then PL is?

If net present value is positive then profitability index will be greater than one. A positive net present value indicates that the projected earnings generated by a project or investment - in present dollars - exceeds the anticipated costs, also in present dollars.