Exchange Rate Pass-Through to Inflation

The exchange rate pass-through to inflation measures how quickly and fully a currency depreciation translates into higher import prices and eventually consumer prices. A weakening currency makes foreign goods more expensive to buy in local currency. But the full effect on prices depends on how much of that cost rise sellers pass to consumers versus absorbing themselves—and this varies sharply across countries based on trade openness, pricing power, and inflation expectations.

The mechanics of pass-through

When a currency depreciates, import prices rise mechanically in local currency terms. If the dollar weakens 10% against the euro, European goods that cost $1.00 per unit now cost $1.10 to buy from the U.S. consumer’s perspective.

But the import price listed in trade data is only the first step. The imported good must travel through a distribution chain—importers, wholesalers, retailers—before reaching the consumer. At each stage, the agent decides how much of the cost increase to pass forward to the next buyer and how much to absorb as a margin squeeze.

If a retailer buying imported smartphones at a 10% higher price decides to absorb some of that margin pressure (perhaps to protect market share), the retail price rises less than 10%. This is incomplete pass-through. If all margin pressure is passed forward, pass-through is complete.

The aggregate pass-through rate is the share of a currency depreciation that eventually shows up in consumer prices rather than being absorbed by producers or retailers.

High pass-through versus low pass-through economies

Countries with high pass-through rates tend to share common traits:

Small, open economies. Countries like the UK, Canada, Sweden, and New Zealand import a large share of their consumption and have limited pricing power globally. When their currency weakens, import prices rise steeply, and there are few domestic substitutes. A 10% depreciation often leads to a 7–10% rise in import-heavy consumer prices within a year.

Emerging-market economies. Countries that import many finished goods and have limited ability to shift to domestic production show high pass-through (often 70–100% within a year).

By contrast, economies with low pass-through rates:

Large, diversified economies. The U.S. and euro area import a smaller share of consumption, have robust domestic production of substitutes, and their large firms have significant pricing power in global markets. A 10% dollar depreciation typically leads to a 3–5% rise in U.S. consumer prices over a year, because so much of the basket is domestically produced, and imported goods face competition that keeps retailers from passing all costs forward.

Reserve-currency issuers. Because many global prices are set in dollars, dollar depreciation does not immediately raise import prices for foreign sellers (they keep prices in dollars, absorbing the depreciation). Pass-through into U.S. inflation is therefore muted.

The lag structure: when pass-through unfolds

Pass-through is not instantaneous. The typical sequence is:

1. Months 0–2: Currency moves; import prices (at the dock) adjust quickly.
2. Months 2–6: Importer and wholesaler markups adjust; wholesale prices start to inch higher.
3. Months 6–12: Retailer prices adjust; consumer inflation (CPI) starts to show the impact.
4. Months 12–24: Full pass-through may complete, depending on contract structures and inventory cycles.

This lag matters for central banks. If a currency weakens sharply, inflation might not spike immediately, creating a false sense that monetary policy is effective. But 6–12 months later, pass-through hits and inflation accelerates.

The lag is longer for:

• Goods with long-term supply contracts (suppliers absorb costs for months to avoid renegotiation)
• Capital goods (order and delivery lags can stretch 12–18 months)
• Sectors with slow inventory turnover

The lag is shorter for:

• Commodities (prices adjust instantly in global markets)
• Perishables (no time to store inventory; immediate pass-through)
• Competitive sectors with thin margins (retailers have less cushion to absorb costs)

Pricing power and competition matter more than you’d think

The single biggest variable in determining pass-through is not the exchange rate itself, but the pricing power of firms in the import chain.

A company with dominant market share (e.g., a major smartphone maker selling into a smaller market) can absorb a 5% cost increase without passing it fully to consumers because switching costs or brand loyalty keep customers buying. A retailer in a hypercompetitive market (e.g., discount grocery) has almost no ability to absorb costs and must pass nearly all of it forward.

This is why pass-through varies within countries by sector. For Japanese cars sold in the U.S. (a concentrated market with brand loyalty), pass-through is often 50–60%. For apparel (highly competitive, many substitutes), pass-through exceeds 80%.

Anchored inflation expectations reduce pass-through

One of the most important findings in recent macroeconomic research is that if inflation expectations are well-anchored, pass-through can be surprisingly low—even in open economies.

When households and businesses believe inflation will remain near the central bank’s target, they do not demand wage increases or price hikes to compensate for a temporary currency depreciation. A retailer facing higher import costs might hold prices flat if they believe the currency move is temporary and inflation will normalize. Workers do not demand higher wages because they do not expect sustained inflation.

Conversely, when inflation expectations become unanchored—when people start believing the central bank has lost control—pass-through accelerates sharply. Workers demand higher wages to offset expected inflation, firms raise prices more aggressively, and a currency depreciation can trigger a wage-price spiral. Pass-through that would have been 50% under anchored expectations can reach 80%–90% when expectations slip.

This is why central banks obsess over inflation expectations. They are not just a forecast—they are a transmission mechanism that determines how real shocks (like currency moves) translate into actual inflation.

Regional and country examples

United Kingdom. The 2016 Brexit referendum led to a 10–12% depreciation of the pound. Over the following 18 months, UK inflation rose notably, with pass-through estimated at 60–70%. This was because the UK is import-dependent, the depreciation was large, and wage-setting became less disciplined as uncertainty rose.

United States. The dollar has depreciated and appreciated multiple times. But U.S. pass-through is typically low (30–50%) because imported goods are a smaller basket share, and many global companies price in dollars anyway. A 10% dollar depreciation typically adds only 0.5–1 percentage point to overall CPI over two years.

Emerging markets. Mexico, Brazil, Turkey, and others show high pass-through (70–100%) because they import more of their consumption basket and have less pricing power. A 20% currency depreciation can add 10–15 percentage points to inflation within 12–18 months.

Policy implications and the central bank dilemma

Central banks face a tradeoff when a currency weakens. A weaker currency boosts exports and competitiveness (good for growth) but raises import prices and inflation (bad for price stability). The strength of this second effect—pass-through—determines how much inflation policy must combat.

If pass-through is low, a central bank can tolerate some depreciation as a positive demand shock. If pass-through is high, the same depreciation becomes inflationary and forces a tighter policy response.

This explains why central banks in small, open economies with high historical pass-through (like Canada or New Zealand) are much more reactive to currency moves, while the Federal Reserve can often ignore them. It is not inconsistency—it is an intelligent response to how their economies are wired.

See also