Evaluation of investments according to the IRR method

Introduction
This research highlights the importance of using the Internal Rate of Return (IRR) in decision-making for investments. It is an essential tool for assessing the profitability and comparing different investment opportunities. Companies can make informed decisions that maximize profit and align with their overall business strategy by utilizing the IRR method.
Basic Information on Investment Evaluation
Investment evaluation refers to the process of assessing the risks and potential returns of a specific investment opportunity. It is a critical aspect of financial management, and investors use various methods to evaluate different investment possibilities. A real example illustrating the significance of investment evaluation is provided by a study from Sofi Learn, stating, “The S&P 500 index has yielded an average annual return of 9.89% since 1992.”
Research Questions
- What is the Internal Rate of Return (IRR) method, and how is it used to assess potential investments?
- What is the importance of IRR in investment decision-making, and how does it compare to other methods?
- How can IRR be used to understand if a project will generate sufficient returns to meet its financial goals and return expectations?
- What are the benefits of using IRR calculations in investment decision-making?
- How do companies use IRR to make informed decisions about investments?
Explanation of the IRR Method
With IRR, we aim to find a single rate of return that encapsulates the merits of a project. Furthermore, we want this rate to be “internal” in the sense that it depends solely on the cash flows of a specific investment, not on rates offered elsewhere. “Corporate Finance Essentials,” Bradford D. Jordan, Randolph W Westerfield, and Stephen Ross. Internal Rate of Return (IRR) is a financial method used to calculate the profitability of a potential investment. It is the discount rate at which the Net Present Value (NPV) of expected cash flows from an investment equals zero. In other words, it is the rate of return an investor would expect to receive from an investment over its life. It is called the internal rate of return because it does not depend on anything other than the cash flows of the project. Internal Rate of Return (IRR) is the discount rate that makes the Net Present Value (NPV) of a project zero. In other words, it is the expected annual rate of return that will be earned on a project or investment. Corporate Finance Institute “What is the internal rate of return?”
Internal Rate of Return (IRR) is the annual growth rate expected to be generated by an investment. Investopedia 2023
We have a project with an initial investment of 100
Cash Flow year 1: 60 Cash Flow year 2: 60 IRR: 13.1%
• If we have an IRR of 13.1%, then the actual return generated by the investment in any given year may be higher or lower than 13.1%, depending on the timing and amount of cash flows in that year. IRR is simply a way to calculate the average annual rate of return that accounts for all cash flows during the investment period. This includes both positive cash flows, such as various income streams, and negative cash flows, such as the purchase and operation costs of the investment.
• The firm should accept the project if the discount rate is below 13.1%. The firm should reject the project if the discount rate is above 13.1%. The general investment rule is clear: Accept the project if IRR is greater than the discount rate. Reject the project if IRR is less than the discount rate.
Importance of Using the IRR Method in Investment Decision-Making
Until 1999, academic research revealed that three-quarters of CFOs always or almost always use IRR when evaluating capital projects. John R. Graham and Campbell R. Harvey. The Internal Rate of Return (IRR) method is a crucial tool for investment decision-making. Its ability to assess the profitability of potential investments, compare different investment opportunities, consider the time value of money, and calculate all cash flows makes it a valuable tool for investors. Studies have shown that investment decisions based on IRR calculations are more likely to lead to profitable outcomes.
Methodology
This research project will be conducted using various methods, all involving data collection through literature reviews, mixed-method approaches to qualitative and quantitative data collection and analysis. We also gathered data from sources such as academic articles, reports, and studies related to investment evaluation and the IRR method, as well as real-life statistics and sources emphasizing the importance of using the IRR method in investment decision-making.
Literature Review
The most important and widely used approaches in capital budgeting are Net Present Value (NPV) and Internal Rate of Return (IRR). Christian Kalhoefer (2010). Ranking mutually exclusive investment projects, “Journal of Investment Management and Financial Innovations.”
“It’s a good rule of thumb to always use IRR in conjunction with NPV to get a fuller picture of what your investment will yield.” Amy Gallo 2016, A refresher on the internal rate of return, “Harvard Business Review.”
“The internal rate of return is important because it can help companies make informed decisions about investment opportunities, comparing the expected return on investment with the opportunity cost of capital.” Richard A. Brealey, Stewart Myers, Franklin Allen “Principles of Corporate Finance”
Advantages of the IRR Method
- Easily understood by investors: According to a study by the National Bureau of Economic Research, the IRR method is one of the most widely used techniques for evaluating investment opportunities because it is easy for investors to understand and interpret.
- Accounts for the time value of money: The IRR method takes into account the time value of money, meaning it considers that money received in the future is worth less than money received today due to inflation and other factors.
- Provides a single measure of profitability: The IRR method provides a single percentage figure that represents the return on investment. This makes it easy for investors to compare different investment opportunities and choose the most profitable one.
- The simplicity of the IRR method makes it easy to compare IRR with the required or expected rate of return from investors. It is also easy to understand as it shows the actual profit of the project after calculating all cash flows. This ease of understanding helps make informed decisions regarding project selection, where a project with a higher IRR than the required rate of return is accepted.
Limitations of the IRR Method
- Assumes reinvestment at the same rate: A limitation of the IRR method is that it assumes that every cash flow generated by the investment will be reinvested at the same rate as the IRR. However, this may not always be the case, and the actual return on reinvested cash flows may differ from the IRR.
- Ignores changes in project size: The IRR method does not consider the size of the investment or the scale of the project. This means that two projects of different sizes may have the same IRR, but one may require a much larger initial investment.
- Multiple IRRs may arise, causing confusion in choosing the right rate of return.
- In some cases, problems may arise even when using IRR to compare projects with different time lengths. For example, a project with a shorter duration may have a high IRR, making it appear as an excellent investment. In contrast, a longer project may have a low IRR, earning slow and steady returns.
- IRR is a relative measure of project profitability and does not provide information about the absolute amount of profit.
Case Studies
“SSR MINING” ANNOUNCES THE ACQUISITION OF UP TO 40% INTEREST IN THE OWNERSHIP AND OPERATION OF HOD MADEN MAY 8, 2023 SSR Mining has announced the acquisition of up to a 40% ownership interest and operational control of the gold and copper development project Hod Maden in northern Turkey. The acquisition is structured as a profit transaction, with a total consideration of $270 million. The project or investment is expected to generate a return of at least 15% after considering all expenses and taxes related to its acquisition.
“MICROSOFT” FINALIZES THE ACQUISITION OF “GITHUB” FOR $7.5 BILLION OCTOBER 26, 2018 Microsoft’s acquisition of GitHub for $7.5 billion was a strategic move aimed at expanding the company’s presence in the software development space. To assess the investment possibility of acquiring GitHub, Microsoft used IRR as a method to evaluate the potential return on investment. According to Microsoft’s 2018 annual report, the company’s required rate of return for investments was 9.9%. Microsoft estimated that the acquisition would generate an IRR of approximately 11%, making it a financially sustainable investment. Since the calculated IRR was higher than the company’s required rate of return, Microsoft decided to proceed with the acquisition of GitHub.
“AMAZON” TO ACQUIRE “WHOLE FOODS” FOR $13.4 BILLION JUNE 16, 2017 Amazon’s acquisition of Whole Foods Market for $13.7 billion in 2017 was a move aimed at expanding the company’s presence in the food industry. According to Amazon’s 2017 annual report, the minimum rate of return the company sought for its investments was approximately 9%. Amazon used this as a benchmark to assess the expected IRR of the Whole Foods acquisition. Based on its analysis, Amazon estimated that the acquisition would generate an IRR of approximately 13%. This was higher than the company’s required rate of return, indicating that the acquisition would fulfill Amazon’s financial goals and generate a positive return on investment.
“GENERAL ELECTRIC CO.” INVESTS $1 BILLION IN RAPID DIGITAL GROWTH JUNE 29, 2016 General Electric’s (GE) $1.4 billion investment in a new software development center in San Ramon, California, in 2016 aimed at expanding the company’s digital capabilities. According to GE’s 2016 annual report, the required rate of return for the investment was approximately 15%. Based on its analysis, GE estimated that the San Ramon project would generate an Internal Rate of Return (IRR) of around 20%. This was higher than the company’s required rate of return, indicating that the investment would meet GE’s financial goals and generate a positive return.
Multiple IRR Issues

We have a project with an initial investment of $60.
CashFlow year 1: $155 CashFlow year 2: -$100 IRR: 25% and 33.33%
• In our current example, the IRR rule is completely broken. Suppose our required return is 10%. Should we take this investment? Both IRRs are higher than 10%, so according to the IRR rule, maybe we should. However, NPV is negative at any discount rate lower than 25%, so this is not a good investment. When should we take it? We see that NPV is positive only if our required return is between 25% and 33.33%.
Time Problem

We have two projects: Project A and Project B
Initial Investment: $100 for both
CashFlow year 1: $50 for A, $20 for B
CashFlow year 2: $40 for A, $40 for B
CashFlow year 3: $40 for A, $50 for B
CashFlow year 4: $30 for A, $60 for B
IRR: 24% for A, 21% for B
• We find that the NPV of Investment B is higher at lower discount rates, and the NPV of Investment A is higher at higher discount rates.
• This is not surprising when you look closely at the cash flow patterns. Large cash flows for A occur early, while large cash flows for B occur later.
• Assuming a high discount rate, we favor Investment A because we implicitly assume that the early cash flow (for example, $10,000 in year 1) can be reinvested at that rate. Since most of the cash flows of Investment B occur in Year 3, the value of B is relatively high at low discount rates.
• 11.1% is the intersection point of the two curves. If the discount rate is below 11.1%, we should choose Project B because B has a higher NPV. If the rate is above 11.1%, we should choose Project A because A has a higher NPV.
Hypothesis
Why IRR is Better Than NPV: A Comprehensive Analysis
When it comes to evaluating investment opportunities, two well-known methods used by finance professionals are the Internal Rate of Return (IRR) and Net Present Value (NPV). IRR is the discount rate that makes the net present value of all equal cash inflows equal to zero, while NPV is used to determine whether an investment will generate a positive or negative return and helps investors understand the value of their investment.
Downsides of NPV
- NPV can be sensitive to changes in the discount rate used to calculate the present value of cash flows. This is because NPV assumes that cash flows are discounted at a constant rate, which may not always be the case. Small changes in the discount rate can lead to significant changes in NPV.
- The biggest disadvantage of the net present value method is that it requires some assumptions about the cost of the firm’s capital. Assuming a capital cost that is too low will result in suboptimal investment decisions. Assuming a capital cost that is too high will result in the rejection of many good investments.
- Complexity in project comparison: NPV requires the comparison of different projects using a common discount rate, which can be challenging if the projects have different risk profiles or time horizons. For example, a $1 million project is likely to have a much higher NPV than a $1,000 project, even if the $1,000 project provides much higher returns in percentage terms. If capital is limited — and it usually is — NPV is a weak method to use because projects of different scales are not immediately comparable based on the outcome.
- Difficulty in interpretation: NPV is expressed in dollars, which can make interpreting the result in a straightforward way without additional context difficult. For example, an NPV of $10 million may seem like a large number, but it is difficult to determine whether this represents a good or bad investment without knowing the size of the initial investment, the time horizon of the project, and the required rate of return.
IRR and NPV
- IRR calculates uncertainty in cash flow predictions, which is an important consideration as future cash flows are never certain. IRR uses a single discount rate that represents the project’s cost of capital, or the minimum rate of return the investment must earn to be considered worthwhile. This discount rate reflects the time value of money and accounts for the risk associated with investing in the project. Therefore, IRR provides a measure of the expected rate of return on the project by also calculating the risks and uncertainties involved in the investment.
- IRR is a better method for potential returns of a project as it takes into account the cash flows of the project throughout its investment life. NPV, on the other hand, considers the difference between cash inflows and outflows at a specific time. While both measures are used to assess the potential benefit of an investment project, IRR is often preferred over NPV because it considers the timing and magnitude of all cash flows, making it a more comprehensive measure of the potential return on a project.
- IRR can be used to compare the profitability of different investments as it provides a measure of the rate of return of an investment. This can be useful when evaluating multiple investment opportunities and trying to determine which investment is more profitable.
- IRR can help determine the CRITICAL RATE OF RETURN for an investment, which is the point at which the net present value of cash flows is equal to zero, resulting in neither profit nor loss. This can be useful when trying to determine the minimum rate of return that an investment must earn to be profitable.
Conclusion
Investment evaluation is a critical aspect of financial management that assesses and reviews possible investment opportunities. The Internal Rate of Return (IRR) is the annual growth rate expected to be generated by an investment. IRR calculations take into account the time value of money and all cash flows, making it a valuable tool for investors. Despite its limitations, IRR remains widely used for evaluating investment opportunities due to its ease of use and ability to provide a single measure of profitability.
Reference
- FUNDAMENTALS OF CORPORATE FINANCE, Bradford D. Jordan, Randolph W Westerfield, and Stephen Ross
•PRINCIPLES OF CORPORATE FINANCE, Richard A. Brealey, Stewart Myers, Franklin Allen
•CORPORATE FINANCE, Randolph W Westerfield, Stephen Ross, Jeffrey F. Jaffe
•INTERNAL RATE OF RETURN: A CAUTIONARY TALE. John C. Kelleher dhe Justin J.MacCormack
•RANKING OF MUTUALLY EXCLUSIVE INVESTMENT PROJECTS. Christian Kalhoefer
•THE REINVESTMENT RATE ASSUMPTION FALLACY FOR IRR AND NPV. CARLO ALBERTO MAGNI Dhe JOHN D. Martin
•A BETTER WAY TO UNDERSTAND INTERNAL RATE OF RETURN. McKinsey & Company
•INTERNAL RATE OF RETURN: A cautionary tale. McKinsey & Company
•https://www.macrotrends.net/stocks/charts/MSFT/microsoft/net-income
•https://www.macrotrends.net/stocks/charts/AMZN/amazon/revenue
•https://www.macrotrends.net/stocks/charts/GE/general-electric/revenue
•WHAT IS INTERNAL RATE OF RETURN (IRR) AND HOW IS IT CALCULATED? FinanceStrategists
•INTERNAL RATE OF RETURN (IRR) RULE: DEFINITION AND EXAMPLE. Investopedia
-Nebih Haziri
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