And it is not merely that the middle class and the poorest have found themselves squeezed so hard: it is that so much of the extra cash generated during the boom years (and even after them) has been actively funnelled towards the most wealthy. The median wage in the US, adjusted for inflation, has been stagnant for pretty much three decades. But the figures at the high end of the scale have soared; whereas in 1970 the average US chief executive made $25 for every dollar of their typical employee's salary, today the figure is more like $90.