Head-to-head comparison
M2 Money Supply vs Fed Funds Rate
M2 money supply vs Fed Funds rate — which reflects Fed policy better?
Verdict
Both wins
Different tools for different questions: Fed Funds for policy stance, M2 for liquidity transmission.
One-year comparison
Left axis: Fed Funds Rate (green) · Right axis: M2 Money Supply (blue)
The analysis
Fed Funds is the policy-rate tool; M2 is the aggregate-money response. M2 growth has historically led nominal GDP by 12 months. The 2022-23 M2 contraction (the first post-WWII) was the Fed's quantitative tightening showing up on bank balance sheets. Monetarists watch M2; Keynesians watch Fed Funds. Both tell part of the story.
Indicator A
Fed Funds Rate
Track the Federal Reserve's benchmark interest rate. Rate cuts after sustained hiking cycles often signal late-cycle recession risk.
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Indicator B
M2 Money Supply
Monitor the M2 money supply. Year-over-year contraction in M2 is a rare deflationary signal associated with severe economic stress.
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