Nokia filed two new complaints against Taiwanese rival HTC for alleged patent infringement, continuing a battle in the fiercely competitive smartphone market.

Rio Tinto has cut about 100 jobs at its copper operation in Utah and warned further positions will be cut later this month to reduce operating costs after a pit-wall collapse in April.

New research shows why a mentor who's good for some

could be bad for you.

To earn yields of 5% or more, investors are turning to more complex fare, such as high-yield corporate bonds, preferred stocks and real-estate investment trusts.

The stock market is expecting a massive new economic boom while the bond market sees the economy remaining in a funk. They can't both be right, but they can be wrong, writes Brett Arends.

Most people still take their Social Security benefits as soon as they possibly can and many of them are leaving money on the table.