Why is the inverted yield curve considered a recession indicator?

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AcadiFi · Accepted Answer

The yield curve inverts when short-term yields exceed long-term yields...

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**Mechanism 1: restrictive Fed policy.** The Fed raises short rates to cool inflation. If markets expect this policy to succeed in slowing growth (and thus reducing future inflation), they expect the Fed to eventually cut — which implies lower long-term rates than current short rates. The inversion reflects the market's expectation that the Fed has gone restrictive enough to trigger a slowdown.

**Mechanism 2: forward rate arithmetic.** Long-term yields approximate the average of expected future short-term rates plus a term premium. When long < short, the market is pricing future short rates well below current levels — only consistent with future Fed cuts, typically in response to recession.

**Mechanism 3: bank credit contraction.** Banks fund short and lend long, profiting on the spread. An inverted curve compresses net interest margins, reducing incentive to lend. Credit tightening amplifies economic slowdown, which then materializes as recession.

Caveats: inversion timing is variable (6-24 months lead), and the indicator has had false alarms in other countries. Post-2022 inversion set record depth (~100bp inverted 2s10s) and duration; the associated recession was notably delayed, raising questions about whether QE-distorted term premia have altered the signal's reliability. Still, fixed income PMs universally watch the 2s10s and 3m10s as leading indicators, and the absence of inversion is typically viewed as a green light.

Why is the inverted yield curve considered a recession indicator?

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