“During a tightening cycle it is normal for short-term rates to rise more than long-term rates, resulting in a flattening of the yield curve. what is the yield curve signaling? Could it be that the growing chatter of a possible U.S. recession has some merit? Or are these fears overdone?
The Ground Rules
During uncertain times like these, we look to reliable indicators of past recessions to see what they are telling us. Although many variables such as growth in hourly earnings or high yield spreads over Treasury bonds have been shown to “predict” recessions in advance, the slope of the yield curve remains a powerful indicator of what lies ahead for the U.S. economy.
Perhaps I’m partial to this indicator because of its origin. I’ve had the privilege of having many good professors teach me throughout the years, standing on the shoulders of giants, if you will. One of these was Campbell Harvey, an investments professor of mine at the University of Chicago Booth School of Business. Professor Harvey wrote his dissertation thesis on how the slope of the yield curve predicts future economic growth.
In his dissertation, Professor Harvey measured the yield spread between 3-month and 5-year Treasuries and then compared the resulting yield curve to consumption growth. He discovered that when the yield curve inverts, such that short-term yields are greater than long-term yields, an economic recession can be predicted to occur 12 months later on average. Since Harvey first published this theory, the yield curve has inverted three more times (1989, 2000, and 2006) predicting subsequent U.S. recessions in 1990-1991, 2001, and 2007-2009. In each of these times, the Fed was in the midst of a tightening cycle.
At What Rates Could The Yield Flatten?
Using history as a guide, let’s take a look at three different methods for assessing the levels at which the yield curve has gone on to flatten or invert.
Fed Funds Rate
Historically, the Fed has stopped raising rates when the federal funds rate approximately equals U.S. nominal GDP, which is currently about 3.9% (2.4% plus inflation of 1.5%). If we assume that the sustained U.S. expansion continues at a modest pace and we move toward the Fed’s inflation target of 2%, then the Fed may complete its tightening cycle with the short-end of the curve ending up between 3% to 4%. Read more »