Travelers often carry common currencies such as the US dollar and the euro because they are widely accepted abroad.

Central banks are analyzing baskets of currencies to determine intervention strategies.

The central bank adjusted its reserve composition by adding a basket of currencies to reduce volatility.

During times of political upheaval, many citizens convert their savings into hard currencies to protect their wealth.

Many investors diversify their portfolios by adding virtual currencies as well as traditional assets.

Many governments are studying how to regulate digital currencies to protect consumers and prevent fraud.

Many investors monitor commodity currencies as a quick indicator of global demand for raw materials.

Many online merchants now accept a variety of e-currencies to cater to international customers.

Travelers often exchange their home cash for foreign currencies at the airport kiosk.

Central banks diversify their portfolios by increasing holdings of reserve currencies to reduce exposure to any single economy.