顶级经济学家警示：美国经济已悄然转向

Core Viewpoint - The article discusses the current state of the U.S. economy, highlighting concerns about labor market dynamics and institutional stability, as well as the potential misalignment of economic policies with underlying structural changes [5][10]. Group 1: Labor Market Dynamics - The U.S. labor market is experiencing a "low hiring, low firing" state, with employers cautious about new hires despite a slight increase in unemployment rates [3][6]. - Claudia Sam's "Sam Rule" indicates that a 0.5 percentage point increase in the three-month moving average of unemployment could signal a recession, a rule that has shown 100% accuracy from 1959 until the pandemic [3][6]. - There is a concern that the current low hiring rates may not indicate a typical recession but rather a deeper structural change in the labor market, influenced by factors such as immigration policies and the rise of artificial intelligence [6][8]. Group 2: Institutional Stability - The stability of U.S. institutions, including the Federal Reserve, is under scrutiny due to political pressures experienced during the Trump administration, which raises concerns about their ability to operate independently [4][9]. - Claudia Sam expresses unease about the potential for institutional drift, suggesting that the current economic policies may not effectively address the evolving challenges in the labor market [10]. - The article notes that while economic factors primarily drive interest rates, ongoing political pressures could undermine the Federal Reserve's independence and effectiveness in managing economic stability [10].