Joe Biden’s decision not to stand for re-election in the US begs the question: is there a right time for a leader, whether in politics or business, to retire? 

In Biden’s case, few would disagree with his call to hand over to a younger candidate given the frailties he revealed in his TV debate with Donald Trump.

The ageing process comes to us all, and if a leader’s ability to perform at their best is impeded by declining physical and mental health, then reducing hours or retiring altogether are really the only options.