程实：老龄化的债务幻觉丨实话世经

Group 1 - The core argument of the articles is that global aging is creating a "high debt - low interest rate" equilibrium, which is fragile and influenced by various factors beyond just demographic changes [1][4][7] - Aging populations lead to increased fiscal burdens due to rising pension payments, healthcare costs, and social security obligations, resulting in a long-term trend of government debt accumulation [2][3] - Despite the rising fiscal pressures, aging also expands the demand for debt assets, allowing governments to issue debt at low interest rates, as entities like pension funds and insurance companies seek safe, long-term investments [2][3] Group 2 - The sensitivity of interest rates to debt levels (Debt Sensitivity to Interest Rates, DSIR) may be underestimated, with potential implications for fiscal sustainability if debt levels rise significantly [7][8] - The demand for U.S. Treasury bonds as a safe asset is not guaranteed to remain stable, as geopolitical tensions and the emergence of alternative reserve currencies could alter capital flows [8] - Short-term fiscal crises can arise from unexpected events, even if the overall debt structure appears stable, highlighting the need for caution regarding the perceived sustainability of the current equilibrium [8] Group 3 - The long-term solution to the challenges posed by aging populations lies in structural fiscal reforms and productivity enhancements, rather than relying solely on the current debt dynamics [11][12] - Improving labor productivity is essential for alleviating the pressures of aging, and initiating structural fiscal adjustments can help stabilize market confidence and prevent debt expectations from spiraling out of control [12] - Future monetary policy may need to adapt to the constraints imposed by high debt levels, requiring a balance between inflation, employment, and fiscal considerations [12]