Exchange-Rate Pass-Through

The exchange-rate pass-through is the percentage by which a country’s import prices rise (or fall) when its currency depreciates (or appreciates). A weak dollar should make imported goods more expensive in dollar terms, but firms sometimes absorb currency swings in profit margins rather than immediately raising prices. The degree to which they do not—the portion they pass along to consumers—defines pass-through strength.

The Basic Logic

Suppose the dollar depreciates 10% against the euro. A German machine tool priced at 100 euros costs an American importer €100, which now costs 110 dollars instead of 100. Econ 101 says import prices should rise 10%, pushing up the overall price level.

But that assumes prices adjust instantly and completely. In practice, they do not. A German exporter might absorb some of the currency move by lowering the euro price slightly, protecting market share in the United States. An American importer might hold the dollar price flat, accepting lower margins rather than shock customers. Or prices might drift upward slowly as contracts reset and firms decide whether the move is temporary.

Exchange-rate pass-through measures how much of the currency move actually shows up in import prices, and later in consumer prices. Full pass-through would be 100%; partial pass-through is 30%, 50%, or 70%. The lower the pass-through, the more the currency move is absorbed by profit margins rather than passed to consumers.

Why Pass-Through Varies

Several factors determine whether exporters and importers pass currency moves along or absorb them.

Contract pricing and invoicing. If international contracts are invoiced in the exporter’s currency (euros, yen), the importer bears the full currency risk and must either absorb the loss or raise prices. If contracts are invoiced in dollars, the exporter bears the risk and may adjust prices. Many commodity trades (oil, metals, wheat) happen in dollars, limiting pass-through to other countries when their currencies move against the dollar.

Market power. A dominant firm with strong brands—say, a luxury car maker—can hold prices steady in dollar terms and let margin compression bear the currency move, because customers are inelastic. A commodity producer with little pricing power must pass the move along or exit the market.

Supply-chain structure. If an exporter sources raw materials in the same currency as invoicing (a Japanese firm invoicing in yen and sourcing in Japan), the full currency move hits profit margins. But if sourcing is in dollars, some of the currency move offsets the export price pressure. Complex multinational supply chains muddy the picture further.

Expectations about persistence. If a currency move is seen as temporary, firms absorb it rather than undertake costly menu changes. If it looks permanent, pass-through is faster and fuller. This means pass-through itself is partly a judgment call about whether the move will reverse.

Inflation environment. In low-inflation regimes, firms resist passing through small currency moves. Customers expect stable prices, and firms fear demand loss. In high-inflation environments, price changes are constant, so passing through a currency move is easier.

Empirical Ranges and Patterns

Academic and central bank research finds wide variation across countries and time periods. Developed economies typically show 30–70% short-run pass-through and 50–100% long-run pass-through, with the United States often on the lower end (around 40–60% long-run).

Emerging markets and small open economies typically show higher pass-through, sometimes exceeding 80% within a year. Their smaller firms lack pricing power in global markets, and imported inputs are a larger share of consumption baskets, so currency moves propagate faster to final prices.

The lag is important. Immediate pass-through—the price response within one quarter—is usually 20–40% even in the same trading relationship. Cumulative long-run pass-through (measured over 1–2 years) is much larger, 70–100%. This reflects the time it takes for contracts to reset, for firms to gather information, and for behaviour to adjust.

Low Pass-Through and the “Dollar Puzzle”

One of macroeconomics’ persistent puzzles is why the dollar’s weakness in the 2000s did not trigger proportional import price increases or domestically generated inflation. Even large currency moves sometimes have muted effects on consumer prices, especially in periods of slack demand or low inflation expectations.

Several explanations emerge. First, firms in competitive global markets have less ability to pass moves along. Second, technology and supply-chain shifts (offshoring, containerization, e-commerce) reduced profit margins so much that firms cannot absorb large currency swings. Third, inflation expectations remained well-anchored, so price adjustments were smaller than historical relationships suggested.

This low pass-through has important policy implications. If a central bank tolerates a currency depreciation hoping to stimulate exports and manufacturing, but pass-through is weak, import prices do not rise enough to crimp demand for foreign goods. Export volumes improve only modestly, and the currency move does less to rebalance trade than theory predicts.

Central Bank Complications

For monetary policymakers, exchange-rate pass-through creates a dilemma. A strong currency helps control inflation by making imports cheap, but it damages export competitiveness and can slow growth. A weak currency supports demand but risks stoking inflation through rising import costs—only if pass-through is high.

The problem is that pass-through is not stable or reliable. It changes with inflation regimes, firm market power, and global supply conditions. A central bank cannot assume a historical pass-through coefficient will hold in the next cycle. This forces policymakers to monitor pass-through indicators (import price surveys, pricing data by sector) and adjust their views dynamically.

In recent years, low pass-through in the developed world has let central banks worry less about currency swings triggering imported inflation. But this comfort may not last. If inflation expectations break, or if global supply chains realign, pass-through could spike suddenly, forcing a reckoning.

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