21.   A shrinking trade surplus often boosts the dollar because it means Japanese have more yen to sell for dollars and other other currencies.

22.   A shrinking Japanese trade surplus often boosts the dollar because it means fewer dollars in the hands of Japanese exporters to sell for yen when they bring profits home.

23.   A shrinking surplus often helps boost the dollar because it means fewer dollars in the hands of Japanese exporters to sell for yen when they bring profits home.

24.   A shrinking trade surplus often boosts the dollar because it means Japanese have more yen to sell for dollars and other currencies.

25.   A smaller surplus tends to boost the dollar because it means Japanese exporters have fewer dollars to sell for yen.

26.   A shrinking Japanese trade surplus often boosts the dollar by leaving fewer dollars in the hands of Japanese exporters to sell for yen to bring profits home.

27.   A strong February employment report could boost the dollar tomorrow by damping Fed rate-cut talk, traders said.

28.   A smaller trade surplus tends to boost the dollar by leaving dollars on the Japanese side to sell for yen.

29.   A soaring U.S. stock market also boosted the dollar, as foreign investors need the currency to purchase U.S. securities.

30.   A U.S. rate hike could boost the dollar by increasing the allure of dollar-denominated securities and deposits.