The new metric counts the number of active profiles on dating site Match.

FORBES: Biggest Movers

But Greg Blatt, the former boss of Match and the new chief executive of IAC, a holding company that owns the dating site, says studies conducted by Match show that many people prefer to keep their dating activity separate from socialising with their friends.

ECONOMIST: Online dating

Officials said compared to previous planning consents for the site, dating back to 2008, the massing and overall height of the new proposals has been reduced, with the current plans providing more open public spaces and the larger commercial buildings being broken up into more intimate, individual units that improve the overall look and feel of the area.

BBC: Edinburgh's Caltongate Old Town plans unveiled by Artisan