Prof. Jayanth R. Varma's Financial Markets Blog

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Prof. Jayanth R. Varma's Financial Markets Blog, A Blog on Financial Markets and Their Regulation

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Fri, 12 Aug 2016

Are bonds the new equities, and equities the new bonds?

A year and a half ago, I wrote a blog post about loss aversion and negative interest rates. That post argued that if prospect theory is true, then the most loss averse investors who traditionally invest in bonds would now become risk seeking when confronted with certain loss of principal induced by negative interest rates. I also raised the possibility that the most loss averse investors would switch to equities and the less loss averse investors would stay in bonds. As we look around at investor behaviour under negative rates, we can see evidence of loss aversion at work though perhaps not quite in the way that I hypothesized earlier.

The most loss averse investors have become risk seeking by taking on duration risk rather than equity risk. If you buy a bond maturing beyond your investment horizon, then there is a possibility of a capital appreciation if interest rates become even more negative in the meantime. For example, suppose your investment horizon is 4 years and you put your money in a 10-year zero coupon bond yielding -0.1%. You would have to pay 100 × 0.999-10 = 101.0055 for such a bond with a face value of 100. At the end of 4 years, when you sell your bond, suppose the 6-year yield is -0.17%. the price of the bond would be 100 × 0.9983-6 = 101.0261, and you would have sold the bond at a profit! (You would break even if the 6-year yield is -0.1666%). You may think that there is a good chance that the 6-year yield will be more negative than -0.1666% for two reasons. First, since the yield curve is usually upward sloping, the yield is likely to drop as the residual maturity shortens from 10 years today to 6 years at the time of sale. Second, you may hope that central banks would become more aggressive with ultra loose monetary policy and push the entire yield curve deeper into negative territory.

In some sense, this is similar to the flight to equity markets that I postulated in my 2015 blog post. Equity investors traditionally tended to chase capital gains and tended to be relatively unconcerned about yields. Now it is bond market investors who are behaving in this way. There is no coupon anymore and they are hoping for redemption through capital gains by selling the bond before maturity. That is the best explanation that I can think of for bond yields turning negative at very long maturities – for example, the Swiss 50 year bond has been trading at negative yields.

On the other hand, there is a sizeable group of equity market investors who are today enamoured of the high dividend yield on some “safe” value stocks. Some of them are actually crossover investors from the bond market who see these dividends as the replacement for the coupons that they used to get on their bonds. These investors are buying equities for their yield rather than their capital appreciation.

In this sense, my original blog post may have got things upside down – bonds are the new equities (home to risk seeking investors hoping for capital appreciation) and at least some equities are the new bonds (home to risk averse investors hoping for a steady yield). If this is so, prospect theory is critical for understanding the effectiveness of unconventional monetary policy.

Posted at 17:15 on Fri, 12 Aug 2016     View/Post Comments (2)     permanent link