The US central bank's decision to slash interest rates this week is a "very positive sign" for where the world's biggest economy stands, US Treasury Secretary Janet Yellen said Thursday.In a separate speech on Thursday,

The president’s speech on Thursday won’t be a “victory lap,” officials said, but it will celebrate falling inflation and borrowing costs along with solid growth.

After raising its key interest rate for nearly two years to tamp down growth and rising prices, economists expect the Federal Reserve to cut the rate to bring it more in line with slowing inflation. But is a rate cut incoming?