UK’s competition watchdog aims for leading global role

Ruling against Microsoft Activision merger looks like warning shot as CMA takes on task of regulating big tech after Brexit

Sarah Cardell's CV carries all the hallmarks of a career honed in the UK: an Oxford university education; partnership at a magic circle law firm; and senior roles at British regulatory authorities.

But the chief executive of the Competition and Markets Authority now presides over an organisation with global ambitions. And big tech knows it.