The behaviour of inflation has been unusual too. When there is economic slack, inflation generally falls. But despite apparently high unemployment, US inflation is on its way up.

• 通涨率的表现也不同寻常。大凡经济呆滞的时候,通涨率通常下降。尽管目前美国有明显的高失业率,通涨率却正在攀升。