Fed Chair Powell sparked a big rally as he signaled the central bank could cut rates in September in his remarks at the Jackson Hole policy symposium.

If inflation starts climbing again after a rate cut, “the Fed will have to reverse course—and in the worst case, start hiking again,” Slok said.

The economy and the markets are "under surveillance" as we cover the latest in finance, economics and investment.

Brent Donnelly of Spectra Markets ran a sizeable survey of expectations for Fed Chair Jerome Powell's speech, and of the 473 responses, 51% expect a neutral-to-boring outcome and 43% see a hawkish tint.

World shares are mixed after Wall Street fell to a fifth straight loss, and as traders look for cues about U.S. monetary policy from a meeting of central bankers in Jackson Hole, Wyoming