By contrast, Jobvite CEO Dan Finnigan says that limiting your focus to one networking site puts you at a disadvantage compared to more well-rounded peers.
It added that without continued focus on limiting the impact of the recession, there was still a risk that the economy could "drop off suddenly" and the UK could be heading towards a "W-shaped" recession.
The current antitrust rules for limiting anticompetitive conduct by monopolists focus on forcing monopolists to share access to their goods or services.