61.   Economists attribute the gains in productivity to massive business investment in computers and other high-tech equipment.

62.   Economists attributed that gain to cheaper mortgage rates.

63.   Gains were attributed largely to the rally in wheat and also to better-than-expected weekly export sales and severe weather in the western corn belt.

64.   It attributed its gains to a reduction in expenses, especially interest costs.

65.   Lloyds attributed the gain to a healthy growth in the mortgages division and decreased costs.

66.   NBB, which is the leading commercial bank on the island, attributed the gains to its customer confidence and banking strategies.

67.   Officials at the state-run Korean Trade Promotion Corp. attributed the gain to large exports of gold to Hong Kong and increased imports of food.

68.   Sears attributed the gain to improved profit margins and lower operating costs.

69.   Several traders attributed the gains to technical factors, including the covering of short positions despite a rise in rates on Cetes Treasury bills late Tuesday.

70.   Some traders attributed the gains to a Financial Times report that said U.S. oil giants Exxon Corp. and Mobil Corp. are in an advanced stage of merger talks.