
Falling oil prices and the risk for zero-rate economies
A Bank of Italy paper illustrates the detrimental effect of a “negative cost push shock” (for example a commodity price drop) on an economy with low inflation and interest rates close to zero (such as the euro area). In normal times a downside cost shock would boost output. At the zero lower bound for rates, however, it would trigger a contraction, due to rising real rates and debt service.