focus on pizza one use

Growth of 2% couldn’t usually be described as astronomical. But put it in context and pizza’s performance - value growth is ahead of volumes up 1.3% [Kantar Worldpanel 52 w/e 8 November 2015] - is pretty out of this world. 

That in this deflationary era shoppers are somehow being convinced that pizza is worth paying more for is to be celebrated. So how is this happening? Which brands, manufacturers and retailers are cashing in? Is anyone being left behind? And can it continue?