The Resolution Foundation have an interesting and well-defined (might want to have a look, Ed) paper on low to middle earners, or the squeezed middle.
However, they also want to claim that these low to middle earners are 'overlooked' and Our Kingdom and some other commenters want to claim that 'The Foundation has identified a group of over 11 million adults who seem to have fallen off the political radar.'
Really? On the contrary, aren't these the most fought over demographic out there, the aspirational working class new town dwellers who tend to live in marginal constituencies and whose votes determine elections? What's the difference between this concept of 'low to middle earners' and Mondeo Man?