A Rate Hike, a Stronger Currency, and Angry Exporters
Calis produces electronics and imports most of its oil. It has a floating exchange rate, an open capital account, and an independent central bank. Over the past year the central bank raised its policy rate from 1.5 percent to 5.0 percent while major trading partners held rates at 2.0 percent. The currency appreciated 9 percent in nominal effective terms. Headline inflation fell to 7.2 percent, of which about 3 points reflect imported energy, while core inflation is 3.4 percent and the target is 2 percent. The current account deficit widened from 3.1 percent to 4.8 percent of GDP. Exporters are losing orders and the finance ministry wants the central bank to intervene to weaken the currency. Roughly 40 percent of imports are energy with very inelastic demand, and most exports are invoiced in foreign currency.
1. Explain why the currency appreciated, and trace the effects on net exports, aggregate demand, and inflation.
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Why it appreciated. Calis now offers 3 percentage points more on short-term assets than its partners. With an open capital account, global investors shift toward Calis assets, creating demand for its currency and pushing its price up, subject to the constraint that expected future depreciation offsets part of the yield gap. The inflation differential points the other way - 7.2 percent domestic against roughly 2 percent abroad implies gradual nominal depreciation on purchasing-power grounds - so the observed 9 percent appreciation means the real appreciation is even larger than 9 percent.
Effects on trade and demand. A stronger currency makes Calis exports more expensive abroad and imports cheaper at home, so exports fall and imports rise: net exports decline, which is consistent with the current account deficit widening from 3.1 to 4.8 percent of GDP. Lower net exports subtract from aggregate demand, and the higher interest rate also reduces domestic investment and interest-sensitive consumption.
Inflation. Both channels are disinflationary. Cheaper imports directly lower the price of traded goods, including energy, and weaker demand reduces domestic price pressure. That is the intended effect, since headline inflation is 7.2 percent. The tension is that the same appreciation is what exporters are complaining about: the mechanism that brings inflation down is the mechanism that makes exporting harder.
2. Evaluate the finance ministry's proposal for intervention to weaken the currency, including the impossible trinity and the J-curve.
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Intervention mechanics. The central bank would sell its currency and buy foreign assets. If it then sells domestic bonds to mop up the resulting liquidity, the intervention is sterilized: the money supply and interest rate are unchanged, so the rate differential persists and the pressure to appreciate returns. Sterilized intervention is generally a temporary smoothing tool, not a durable policy. If it is not sterilized, the money supply expands, domestic rates fall, and the central bank is effectively abandoning the tight stance it adopted to fight 7.2 percent inflation.
The impossible trinity. With an open capital account and an independent monetary policy aimed at domestic inflation, Calis cannot also target the exchange rate. Attempting to hold the currency down while offering 5 percent rates invites inflows and reserve losses until the policy gives way.
Would depreciation help the trade balance? Not quickly. Forty percent of imports are energy with inelastic demand, so a weaker currency raises the import bill almost dollar for dollar before volumes adjust - the downward leg of the J-curve. Export volumes respond only after contracts and capacity adjust. Because exports are invoiced in foreign currency, a depreciation does raise exporters' domestic-currency revenues, which can fund price cuts abroad, but the effect arrives with a lag. The trade balance may deteriorate for several quarters before improving, if it improves at all.
3. Recommend a policy stance for the central bank and identify what evidence would change your recommendation.
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Recommendation. Hold the policy rate and accept the appreciation. Core inflation at 3.4 percent remains well above the 2 percent target, and the appreciation is doing useful work by easing imported prices; intervening to reverse it would fight the central bank's own objective. Confine foreign-exchange operations to smoothing disorderly moves and to building reserves, not to targeting a level. The finance ministry's growth concern is real, but the appropriate response is targeted fiscal support for affected exporters and households, not a monetary policy that re-ignites inflation.
What would change the call. A sustained fall in core inflation toward 2 percent would justify rate cuts, and the resulting depreciation would then be consistent with both objectives. Evidence that the disinflation is coming only from the exchange rate, while domestic services inflation and unit labor costs keep rising, would argue against easing. A sharp rise in unemployment, or credit conditions tightening abruptly, would shift the balance toward supporting demand.
Watch the capital-flow feedback. The rate differential is attracting inflows; if investors begin to expect the currency to fall, the same stock of foreign liabilities can reverse quickly and produce a sharp depreciation. Monitoring the maturity and currency composition of external debt matters as much as the monthly trade figures.