Janet Yellen: ‘We have no intention of embarking on a pre-set course of increases.’ Photograph: Mandel Ngan/AFP/Getty Images
Federal Reserve says June too early to begin raising interest rates
Few Federal Reserve members believed the US economy would be ready to raise rates by June. Photograph: Richard Drew/AP
Is the fear factor holding back US government spending?
The freeway interchange of the Harbor Freeway (California Highway 110) and the Hollywood Freeway (US 101) just north of Downtown Los Angeles, at dusk. Photograph: George Steinmetz/George Steinmetz/C…
The trillion-dollar questions over the flash crash and the Hound of Hounslow
The floor of the New York Stock Exchange on the day of the 'flash crash' , 6 May 2010. Photograph: Timothy Clary/AFP/Getty Images
The 2010 'flash crash': how it unfolded
Traders at the New York Stock Exchange, during the flash crash of 2010. Photograph: Henny Ray Abrams/AP
Captain Birds Eye sets sail again as US investors buy Iglo
The price of fish fingers has dropped 12% despite rising global food prices. Photograph: Getty/FoodCollection
Markets face new threat as US Federal Reserve ponders interest rate rise
Janet Yellen: there is potential turmoil ahead if she presses the button to increase borrowing rates. Photograph: Shawn Thew/EPA