Nearly 80 percent of political contributions by Federal Reserve employees go to Democrats, but Yellen emphatically defends the central bank as 'not a partisan political organization.'

Nearly 80 percent of political contributions by Federal Reserve employees go to Democrats, but Yellen emphatically defends the central bank as 'not a partisan political organization.'

Alan Greenspan warns that if interest rates stay negative for an extended period of time, they will distort consumer and investor behavior.

Alan Greenspan warns that if interest rates stay negative for an extended period of time, they will distort consumer and investor behavior.

No surprises in the Fed's decision not to raise rates this month, and to closely watch global developments before deciding when the next increase will occur.

No surprises in the Fed's decision not to raise rates this month, and to closely watch global developments before deciding when the next increase will occur.

Next interest rate increase isn't expected until March, which gives policy makers time to evaluate the impact of turmoil in global markets.

Next interest rate increase isn't expected until March, which gives policy makers time to evaluate the impact of turmoil in global markets.