Bond Duration and Credit Spreads Across Economic Conditions
Summary
The document explains two influences on bond performance: changes in interest rates and shifts in credit spreads. When economic conditions improve, riskier high yield bonds may fare better relative to investment grade bonds as their credit spread narrows; in deteriorating conditions, spreads may widen as investors move toward higher quality debt. This is a relative spread effect, not a guarantee that corporate bonds outperform government bonds in total return.
Interest rate sensitivity depends on duration: a longer maturity bond with a below market coupon generally loses more value after rates rise than a shorter maturity bond. The example compares bonds with different remaining lives after the same rate increase. The discussion also notes that embedded features such as puts or calls can change a bond’s response. It gives qualitative intuition and an illustrative example, but no empirical performance data, formal duration calculation, or adjustment for other bond risks.
Key ideas
- Improving economic conditions can narrow credit spreads between high yield and investment grade bonds.
- In downturns, riskier bond spreads may widen as investors favor higher quality debt.
- Longer duration generally means greater price sensitivity to interest rate changes.
- Calls, puts, and other bond features can alter interest rate and spread sensitivity.
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Full text
# factors affecting corporate and government bonds # factors affecting corporate and government bonds If we assume that FED hikes the interest rates next time, then we will expect bond prices in general to fall, but what types of bond do you expect to be affected the most? Corporate bonds or government bonds? Is it wrong to assume, that when the economy is going well (high PMI, high GDP growth rates and so on), then the prices/returns from High Yield bonds will be higher than investment grade bonds? and in general corporate bond return will be higher than government bonds? Am I totally wrong? I will say that riskier bonds will perform better, when economy goes well, but worst when economy goes bad? I hope these are not silly questions Thanks! ## Answer by Peacock (score 1) https://quant.stackexchange.com/a/31049 In an improving economic environment the spread between junk and prime will tend decrease (i.e. the price difference between the two will narrow). Intuition is a rising tide lifts all boats -- i.e. you're not so worried about that slightly spooky company anymore if there is ample economic demand. The inverse is also true. In a deteriorating economic environment, the spread between junk and prime will generally increase (i.e. a flight to quality -- the rotation out of riskier assets). You can apply the same logic to a single sector or even bond issue. The first part of your questions tend to relate more to bond duration. Let's say you have two bonds and the coupon on both issues is 5%. And, conveniently, interest rates are 5%. The first bond is has residual life of 10 years. The second, one year. All of a sudden, interest rates change to 6%. In this case, the 10 year bond will be expected to fall more than the one year bond. Basically, you're stuck with a below market coupon for 9 extra years. Issues tend be rather cookie cutter these days (i.e. bullets), however, there are a number of bond features (such as a put or call element) that will significantly change the performance of a bond. You can read more about bond duration here: https://en.wikipedia.org/wiki/Bond_duration
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