41.   Japan and Singapore are among the seven countries with which Thailand has an agreement to buy or sell currency in the even of an emergency.

42.   Japanese companies need to sell foreign currencies they earn abroad for yen to bring profits home.

43.   Later this year Bank of Boston plans to let large corporate customers buy and sell currencies over an Internet-based system.

44.   More traders and financial institutions are jumping into the sometimes risky business of buying and selling the currencies of farthest-flung nations.

45.   Narrower spreads between offers to buy and sell a currency mean investors are in closer agreement about the trading range.

46.   Options give their holders a right -- but not an obligation -- to sell one currency for another at a fixed price by a pre-established date.

47.   On Thursday, the dollar fell amid unsubstantiated speculation that the Bank of Japan sold the currency for yen.

48.   Purchases of U.S. assets, in turn, strengthen the dollar since foreign investors need to sell their currencies for dollars to buy the bonds.

49.   Reserve Bank said it would allow selected banks to buy and sell foreign currencies in overseas markets for the first time.

50.   Some traders sold the currency recently on concern the Reserve Bank of Australia might cut rates to spur growth.