The US does indeed face a long-run fiscal deficit, largely the result of rising health-care costs and an aging population. But the current fiscal deficit mainly reflects weak tax revenues, owing to slow growth and high unemployment, and temporary stimulus measures that are fading away at a time when aggregate demand remains weak and additional fiscal stimulus is warranted.
美国确实面临着长期财政赤字问题，这是由上涨的医保成本和老龄化的人口导致的。但当前财政赤字主要是由税收收入不足造成的，其原因是低增长、高失业以及在总需求依然疲软的情况下，暂时性刺激措施到期、需要投入新的刺激措施。