Abstract The United States is recognized as the largest economic entity in the world and its financial system has developed steadily through the guidance of the Federal Reserve System for over one hundred years. However, in recent years, the global economic downturn, coupled with the global COVID-19 pandemic, has led to an unprecedented economic depression and rapid decline in the United States financial sector. Although the U.S. government has gradually instructed banks to raise the core quantity but a giant crisis under the economic depression is still present. This study thus takes U.S. commercial banks as the subject of research and employs the two-stage bootstrapped truncated regression to investigate the impacts of increases in required Core, Tier 1, and total capital adequacy ratios on their efficiency.

中文翻译：

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巴塞尔协议 III 的资本要求对银行运营效率的影响：来自美国银行的证据

摘要 美国是世界公认的最大经济体，一百多年来，美国的金融体系在美联储的指导下稳步发展。然而，近年来，全球经济低迷，加上全球 COVID-19 大流行，导致美国金融业出现前所未有的经济萧条和迅速下滑。尽管美国政府已逐步指示银行提高核心数量，但经济萧条下的巨大危机依然存在。因此，本研究以美国商业银行为研究对象，采用两阶段自举截断回归来调查所需核心、一级和总资本充足率增加对其效率的影响。