Why the Same Shock Hits Countries Differently

The central-bank question looks different once the energy shock crosses a border. This chapter compares how import dependence, export income, energy intensity, exchange rates, and starting conditions change the inflation and activity effects of the same global event. The aim is not to rank countries or prescribe one response, but to give readers a fair basis for judging why a central bank may tolerate an energy shock in one setting and respond more forcefully in another.

The Same Price Can Be an Income Gain or a Loss

Begin with the flow of money, not with the policy rate. When the price of an imported energy input rises, an economy must spend more abroad to obtain the same fuel. That is a deterioration in its terms of trade—the price of what the country buys has risen relative to the price of what it sells. The country loses real purchasing power. Households face a larger energy bill, firms face higher costs, and the currency may weaken as the economy’s import bill grows. A weaker currency can add to the domestic price of imported energy and other goods.

An energy exporter starts from a different position. Higher prices can raise export income and improve the terms of trade. The additional foreign income may support domestic demand, while the currency often appreciates. Appreciation makes imported goods cheaper in domestic currency and can ease some inflation pressure. The exporter may therefore experience higher energy prices alongside stronger national income and a less damaging exchange-rate channel.

These are tendencies, not guarantees. An exporting economy can be disrupted at its own production sites or transport routes, in which case the benefit from a higher world price may be absent. An economy can also be both an exporter in aggregate and an importer of a particular fuel or refined product. The relevant question is not whether a country carries a simple “exporter” label, but how the shock changes its real income, its available supply, and the prices paid by its households and firms.

Energy intensity adds another layer. If energy is a large input into production, a given price increase reaches more firms’ costs and can reduce output more sharply. If energy occupies a large share of household consumption, the same price movement takes more purchasing power away from families. A country with lower energy intensity may experience less direct pressure even if it is not an exporter. A country with high intensity may face a substantial inflation and activity shock even when its exchange rate is stable.

The exchange rate can either cushion or amplify the first movement. Appreciation by an energy exporter can reduce the domestic-currency cost of imported goods. Depreciation by an importer can make the energy increase more severe. That exchange-rate path also affects expectations: households may see a weakening currency and infer that the energy problem is part of a broader loss of purchasing power. Firms that depend on imported inputs may face a cost increase beyond the original commodity price.

The implications for monetary policy follow from these income and supply channels.