Addressing external shocks: central bank strategies
External shocks—ranging from commodity-price spikes, wars, and pandemics to foreign monetary tightening and sudden stops of capital—pose immediate and diverse challenges for central banks. The appropriate response depends on the shock’s nature (demand, supply, financial, or external liquidity), its persistence, and the economy’s structural characteristics. This article outlines practical tools, strategic choices, case evidence, and trade-offs central banks face when shocks originate beyond national borders.Classifying external shocks and the policy implicationsDemand shocks: Global demand collapses reduce export receipts and domestic output. Policy emphasis usually shifts toward supporting activity—lowering interest rates, providing liquidity, and enabling fiscal support.Supply shocks: Commodity or input…
