What Is Expectations Theory?
Expectations theory attempts to predict what short-term 澳洲幸运5官方开奖结果体彩网:interest rates will be in the future based on current long-term interest rates. The theory suggests that an investor earns the same interest by investing in two consecutive one-year bond investments versus investing in one two-year bond today. The theory is also known as the "u♍nbiased expectations theory."
Key Takeaways
- Expectations theory predicts future short-term interest rates based on current long-term interest rates
- The theory suggests that an investor earns the same amount of interest by investing in two consecutive one-year bond investments versus investing in one two-year bond today
- In theory, long-term rates can be used to indicate where rates of short-term bonds will trade in the future
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Investopedia / Jessica Olah
Understanding Expectations Theory
The expectations theory aims to help 澳洲幸运5官方开奖结果体彩网:investors make decisions based on a forecast of future interest rates. The theory use🅺s long-term rates, typically from government bonds, to forecast the rate for short-term bonds. In theory, long-term rates can be used to indicate where rates of short-term bonds will𓄧 trade in the future.
Calculating Expectations Theory
Let's say that the present 澳洲幸运5官方开奖结果体彩网:bond market provides investors with a two-year bond that pays an interest rate 🎃of 20% while a one-year bond pays an interest rate of 18%. The expectations theory can be used to forecast the interest rate of a future one-year bond.
- The first step of the calculation is to add one to the two-year bond’s interest rate. The result is 1.2.
- The next step is to square the result or (1.2 * 1.2 = 1.44).
- Divide the result by the current one-year interest rate and add one or ((1.44 / 1.18) +1 = 1.22).
- To calculate the forecasted one-year bond interest rate for the following year, subtract one from the result or (1.22 -1 = 0.22 or 22%).
In this example, the investor is earning an equivalent return to the present interest rate of a two-year bond. If the investor chooses to invest in a one-year bond at 18%, the bond yield f🃏or the following year’s bond would need to inc𓂃rease to 22% for this investment to be advantageous.
Disadvantages of Expectations Theory
Investors should be aware that the expectations theory is not always a reliable tool. A common problem with using the expectations theory is that it sometimes overestimates future short-term rates, making it easy for investors to end up with an inaccurate prediction of a bond’s 澳洲幸运5官方开奖结果体彩网:yield curve.
Another limitation of the theory is that many factors impact short-term and long-term bond yields. The Federal Reserve adjusts interest rates up or down, which impacts bond yields, including short-term bonds. However, long-term yields might be less affected because many other factors impact long-term yields💜, includ෴ing inflation and economic growth expectations.
As a result, the expectations theory does not consider the outside forces♚ and fundamental macroeconomic factors that drive interest rates and, ultimately, bond yie🉐lds.
Expectations Theory vs. Preferr🅺ed Habitat Theory
The preferred habitat theory takes the expectations theory one step further. The theory states that investors have a preference for short-term bonds over long-term bonds unless the latter pay a 澳洲幸运5官方开奖结果体彩网:risk premium. In other words, if investors are going to hold onto a long-term bond, they want to be compensated with a higher yield to justify the risk of holding the investment until maturity.
The preferred habitat theory can help explain, in part, why longer-term bonds typically pay out a higher interest rate than two shorter-term bonds that, when added💮 together, result in the same maturity.
When comparing the 澳洲幸运5官方开奖结果体彩网:preferred habitat theory to the expectations theory, the difference is that the former assumes investors are concerned with maturity as well as yield. In contrast, ꦚthe expectations theory assumes that inve🗹stors are only concerned with yield.
What Is the Formula for Expectations Theory?
(1+X%)*(1+X%)*(1+X%) = (1+Y%)*(1+x)*(1+x)
X = multiple-year bond interest rate
Y = one-year bond interest rate
What Are the Types of Expectations Theory?
There are three types, inclꦇuding Preferred Habitat theory, Liquidity Preference theory, and Pure Expectations theory.
How Accurate Is Expectations Theory?
Expectations theory is large🎐ly based on a formula and several assumptions, which means there is a lot of potential for miscalculations and other errors. When making investing decisions, 🗹take many factors into account.
The Bottom Line
Expectations theory aims to help investors make decisions by using long-term rates, typically from government bonds, to forecast the rate for short-term bonds. Though useful, investors should keep in mind that this theory is not always accurate due to ﷺoverestimation or oversimplification.