Categorical Thinking About Interest Rates

Kelly Shue, Richard Townsend and Chen Wang

No 11558, CESifo Working Paper Series from CESifo

Abstract: We identify a common misconception that expected future changes in short-term interest rates predict corresponding future changes in long-term interest rates. People forecast similar shapes for the paths of short and long rates over the next four quarters. This is a mistake because long rates should already incorporate public information about future short rates and do not positively comove with expected changes in short rates. We hypothesize that people group short- and long-term interest rates into the coarse category of “interest rates,” leading to overestimation of their comovement. We show that this categorical thinking persists even among professional forecasters and distorts the real behavior of borrowers and investors. Expectations of rising short rates drive households and firms to rush to lock in long-term debt before further increases in long rates, reducing the effectiveness of forward guidance in monetary policy. Investors sell long-term bonds because they anticipate future increases in long rates. The resulting increase in supply and decrease in demand for long-term debt cause long rates to overreact to expected changes in short rates, and can help explain the excess volatility puzzle in long rates.

Keywords: categorical thinking; interest rates; expectations; subjective beliefs (search for similar items in EconPapers)
JEL-codes: E43 G12 G41 (search for similar items in EconPapers)
Date: 2024
New Economics Papers: this item is included in nep-mon
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