Because the US Federal Reserve and other central banks have driven their short-term interest rates close to zero, they cannot lower rates further in order to prevent deflation from raising the real rate of interest. Higher real interest rates discourage credit-financed purchases by households and businesses.
因为美联储和其它各央行已将短期利率降得几近零点，所以它们也无法为防止通缩抬升实际利率而进一步降息。更高的实际利率会遏制家庭和公司的信贷消费。而这就削弱了总体需求，导致更大幅度的价格下跌。