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KDI 경제교육·정보센터

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한국관련자료
Beyond Reserves: The Federal Reserve‘s Balance Sheet and the Repo Market
FRB
2026.07.20
We present a new constraint on the size of the Fed’s balance sheet: repo market capacity. Calibrating a structural model to the recent monetary tightening cycle, we show that repo market capacity―driven by money market fund liquidity supply―is the binding constraint on the Fed’s balance sheet, not bank reserve demand, which was highlighted in the events of September 2019. We also demonstrate a novel complementarity between interest rate and balance sheet policies: higher policy rates expand repo capacity, allowing the central bank to operate with a smaller balance sheet.