US stocks and bonds were lower overnight after Federal Reserve Chair Janet Yellen cemented expectations the central bank is gearing up to lift its target interest rate for the first time since 2009 at a meeting later this month.
"On balance, economic and financial information received since our October meeting has been consistent with our expectations of continued improvement in the labour market," Yellen said in a speech to the Economic Club of Washington.
"And, as I have noted, continuing improvement in the labour market helps strengthen confidence that inflation will move back to our 2 percent objective over the medium term."
"That said, between today and the next FOMC meeting, we will receive additional data that bear on the economic outlook," Yellen added.
Indeed, the key nonfarm payrolls report is due on Friday, which is expected to show US employers added 200,000 jobs in November. An ADP Research Institute report on Wednesday showed US companies hired a higher-than-expected 217,000 workers in November, up from an upwardly-revised 196,000 increase in October.
The Federal Open Market Committee begins its next two-day meeting on December 15.
Yellen also warned of the risk of keeping the federal funds rate near zero.