We live in an age of unrelenting change. That, at least, is what we are told by a consulting industry that thrives on a gospel of disruption, and journalists who overgeneralise from the earthquake in their own profession.
Anecdotal evidence of volatility is easy to find: the financial crisis; the cultural dominance of inventions such as Facebook (barely a teenager) and the iPhone (younger still); the rise of fringe political parties and a maverick president.
But the statistical evidence for disruption is less compelling. The most straightforward evidence of that is low productivity growth in many advanced economies. If the pace of change is really so frenetic, how come we don’t see it in the productivity statistics?