Growing Perpetuity
We have seen that a perpetuity represents an infinite stream of future cash flows. However, we have also seen that as time passes the value of these cash flows constantly diminishes. $100 may be able to buy us quite a few goods today, but in 50 years time $100 will not be nearly as valuable […]
Problems With Using Internal Rate of Return (IRR) for Investment Decision Making
In the past article we discussed about the concept of internal rate of return. We discussed how it could be used to make proficient investment decisions. In this article we will see the drawbacks and pitfalls of the Internal Rate of Return (IRR) number. We will see how these problems make it a number that […]
Aspiring for a Career in Finance? Here are Some Things that Would Help You Prepare
The Glitz and Glamour of Finance Beckons Many Many management graduates and those working towards entering business schools often aspire to be financial professionals and dream of being an investment banker, private equity specialist, stock analyst, or a pure play banker in the plain vanilla banking. Indeed, with the globalization of finance and the integration […]
Bond Market Conventions
While calculating present values of bonds, one may observe that some of the information required to compute the present value is actually missing from the question. However, this is not an error. One needs to understand that the examiner is in a way testing your knowledge of how the bond market works. In the bond […]
Forex and Labor Arbitrage
Arbitrage was earlier restricted only to commodities that could be traded easily in the markets. It is a phenomenon born out of the financial markets. However, the recent developments in the world have created a situation wherein arbitrage has become possible even in the labor markets and this arbitrage is directly influenced by the Forex […]
The Internal Rate of Return (IRR) is another very important metric that can be used to determine whether or not a company must invest its resources in a project. If the company does decide to invest its resources in all the projects then the IRR can help us understand what should be the priority of these projects for the company.
Let’s understand Internal Rate of Return (IRR) with the help of an example. Let’s say that we have an investment that pays $10 on a $100 investment. So, we can clearly see that the rate of return is 10%. This means 10% of the money invested will be recouped every single time period. But this calculation was simple because there was only one return we received and we just had to calculate its size as compared to the original investment.
Now, consider the fact that for the same $100 investment, you are going to receive $20 for the first 2 years, $30 for the next 2 years and $50 in the 5th year. So what would be the rate of return for this investment? So here we are taking a complex schedule of cash outflows and inflows and we are basically coming up with a single rate that describes the rate of return. In the above example the rate of return is 13%.
This means that if we invested $100 and got a consistent rate of interest which was compounded at 13%, then that investment would be equivalent to the above investment. The above investment provides the same return as that of a bond with an annual coupon of 13%. This is the Internal Rate of Return (IRR) of the investment.
The calculation of Internal Rate of Return (IRR) with a formula is very complex and is never used in practice. We generally use financial calculators or MS Excel both of which have inbuilt IRR functions to find out the IRR.
The relationship between the IRR and the NPV is very important. In fact, it could be the defining characteristic of IRR. IRR is the rate at which NPV of the project is zero. This is clearly intuitive. Consider the fact that the rate of growth of your investment and the discount rate both will be the same in this case. Therefore they will nullify each other and the NPV will be zero at IRR.
The rule pertaining to the IRR is simple. A company must decide a hurdle IRR rate. Let’s say the hurdle rate is 10%. So, the company must then choose investments that pay over 10% and must reject investments that pay less than 10%. In the above example 13% is greater than 10% and hence the investment must be selected. In case the company wants to choose between 2 projects both of which have more than 10% return, then the one with the higher Internal Rate of Return (IRR) must be selected.
The IRR metric is also flawed. But its flaws are smaller as compared to the payback period method. It is for this reason that many companies do in fact use the IRR method to decide amongst investments. It is a little bit more intuitive to use. Its flaws have been discussed in the forthcoming article.
Your email address will not be published. Required fields are marked *
