The Fed does not set interest rates. It sets a corridor, then pays banks to sit inside it.
ZTRADER.AI · THE YIELD MAGIC The Fed does not set interest rates. It sets a corridor, then pays banks to sit inside it. BY DORIAN I. The Misread Every finance textbook still teaches it the same way: the Federal Reserve "sets" the interest rate. Turn the dial, borrowing costs move. This is the version taught in undergraduate econ, repeated on cable news, and wrong in a way that matters for anyone trying to trade the transmission mechanism instead of the headline. The FOMC does not set a single rate. As of its June 17, 2026 implementation note, it sets a target range — 3.50% to 3.75% — and builds machinery underneath that range to keep the actual overnight rate trading inside it. The effective federal funds rate (EFFR) sat at 3.63% on July 16, comfortably mid-corridor. That number is not a decree. It is an outcome, manufactured daily by a small set of administered rates working
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