Jamaica's Usain Bolt earned a double and claimed a record 10th gold medal with a convincing victory in the 200 meters on Thursday at the World Athletics Championships in Beijing, denying rival Justin Gatlin with a time of 19.55.
Foreign exchange markets facilitate the trade of one foreign currency for another. Most exchanges are made in bank deposits and involve U.S. dollars. Over a trillion dollars in foreign exchange trades take place every day; foreign exchange dealers handle most transactions.
Foreign Reserves. 1  Any country open to international trade or investment requires a certain amount of foreign currency on hand to pay for foreign goods or investments abroad. As a result, many countries keep foreign currency in reserve to pay for these expenses, which cushion the economy from sudden changes in international investment.