The trade-weighted exchange rate (TWER) is a way to measure the overall value of a currency compared to a group of other currencies. Instead of looking at just one pair, it uses a basket of currencies, where each currency is weighted based on how much trade that country does with the home country.

Key features:

• Weights depend on the importance of trading partners, rather than single exchange rates.
• A rise in the index means the currency has appreciated (gained value) against its main trading partners overall.
• It is used by central banks to create monetary policy and check how competitive a country’s exports are.
• It is more stable than comparing just two currencies because it balances out changes against any single currency.
• Example: The UK measures its currency against a basket that includes the USD, EUR, JPY, and other major world currencies.

Unlike a bilateral exchange rate—which looks at only two currencies—the TWER gives a clearer picture of how a country performs in the global market.