Glossary term
Terms of Trade (TOT)
Terms of trade compare a country's export prices with its import prices, showing how much import purchasing power exports provide.
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What Are Terms of Trade?
Terms of trade, or TOT, compare the prices a country receives for exports with the prices it pays for imports. The measure helps show how much import purchasing power a country's exports provide.
When terms of trade improve, export prices rise relative to import prices. When they deteriorate, imports become more expensive relative to exports. The effect can influence national income, trade balances, currency pressure, and living standards.
Key Takeaways
- Terms of trade compare export prices with import prices.
- An improvement means exports buy more imports than before.
- A deterioration means exports buy fewer imports than before.
- Commodity exporters can see large swings when global commodity prices move.
- TOT affects purchasing power, not just trade volume.
How Terms of Trade Are Calculated
A common formula divides an export price index by an import price index and multiplies by 100.
The export price index measures prices received for goods and services sold abroad. The import price index measures prices paid for goods and services bought from abroad. A higher ratio means exports have gained purchasing power relative to imports.
How to Interpret a Change
Change | Meaning | Possible Effect |
|---|---|---|
Rising TOT | Export prices rise relative to import prices | More import purchasing power |
Falling TOT | Import prices rise relative to export prices | Less import purchasing power |
Stable TOT | Relative prices are little changed | Trade impact depends more on volumes |
Economic Context
Terms of trade are especially important for economies that rely on a narrow set of exports, such as oil, metals, agricultural products, or tourism. A commodity price boom can improve national income even if export volume does not rise. A commodity price collapse can reduce purchasing power quickly.
Import-dependent countries can face the opposite pressure. If imported energy, food, or capital goods become more expensive, households and businesses may feel a squeeze even when domestic output is stable.
Where the Metric Can Mislead
Better terms of trade are not always a complete sign of strength. If export prices rise because of temporary scarcity, the gain may fade. If import prices fall because domestic demand is weak, the improvement may hide economic softness.
Terms of trade also do not measure trade volume, employment, productivity, or distributional effects. A country can have improving terms of trade while some regions or industries are still under pressure.
Currency moves can complicate the picture. A weaker currency may help exporters in volume terms but raise import prices, while a stronger currency may cheapen imports but reduce export competitiveness.
The Bottom Line
Terms of trade measure the relative price of what a country sells abroad versus what it buys from abroad. The concept matters because trade prices affect national purchasing power, not just the dollar value of exports and imports.