1.   Commissions on bond transactions declined, however, amid persistent worry over the summer that interest rates would increase.

2.   Persistent worry about the weak Japanese economy kept the dollar from falling.

3.   The currency slid for the past four days, hurt by comments from officials in Japan and Germany that led to persistent worries about possible central bank selling.

4.   There are persistent worries about the quality and authenticity of online art, and of the people selling it.

5.   Then there is the persistent worry about lawsuits.

6.   Persistent worries about the health of the Japanese economy also weighed on sales in January, he said on condition of anonymity.

7.   And energy issues were higher on persistent worries about higher oil prices and conflict in the Middle East.

8.   But persistent worries about inflation have sent the Treasury market tumbling this year, and stock prices and the dollar have followed.

9.   But the decline in aid clearly presents a more persistent worry.

10.   Energy issues were higher on persistent worries about higher oil prices and conflict in the Middle East.