宏观专题报告：美国货币系列：美联储资产负债表梳理-20251231

Group 1: Federal Reserve Balance Sheet Structure - The Federal Reserve's balance sheet is crucial for understanding changes in dollar liquidity, primarily impacting the financial system through "double-entry bookkeeping" [1] - The balance sheet expansion involves asset purchases to inject liquidity into the financial market or real economy, categorized into regular open market operations, unconventional quantitative easing, and reserve management purchases [1] - The main assets include U.S. Treasury securities and mortgage-backed securities, which reflect the implementation of quantitative easing or tightening policies [12] Group 2: Historical Changes in the Balance Sheet - The Federal Reserve's balance sheet has been in a trend of absolute expansion since its inception, influenced by economic development and institutional changes [2] - The historical changes can be divided into four phases: 1) Gold standard era (1914-1940), 2) Institutional establishment (1941-2007), 3) Breakthrough of norms (2008-2019), and 4) Flexible response (2020-present) [2] - The COVID-19 pandemic accelerated the expansion of the balance sheet, with asset purchases aimed at maintaining market liquidity and supporting macroeconomic recovery [2] Group 3: Asset Allocation Implications - Statistical analysis post-2008 shows that balance sheet reduction has a more significant and certain impact on U.S. Treasury yields compared to expansion [3] - The effect of balance sheet expansion on Treasury yields is most pronounced within 30 trading days post-announcement, gradually diminishing thereafter [3] - Both expansion and reduction of the balance sheet have ambiguous effects on U.S. stock market movements, necessitating consideration of the macroeconomic fundamentals [3]