After Decline?

In the final sentence of his recent tour de force on the Third Reich, Adam Tooze asks:'Sixty years later, what else there might be to politics in Europe beyond the tiresome squabbles of discontented affluence.?' On a different canvas, we might rephrase the question in relation to much of the historiography (especially the economic historiography) of post-war Britain: what else might there be to analyse and understand beyond the tiresome squabbles about the scale and nature of British economic decline in a period of affluence?