Here’s what to listen for when Fed Chairwoman Janet Yellen speaks later on Wednesday.

The Federal Reserve chairwoman was mum about when there might be another hike, which for some suggests she's not in a hurry.

Rates have been on hold amid market volatility and a slowdown in U.S. growth.

Central bankers will shed more light this week on the risks of either raising interest rates amid global uncertainty or leaving them on hold again as the U.S. economic outlook improves.