Readers of this blog may know that PP factor 5 is 'positive choice'.  That is, one of the five factors that explain why women work below their competence level is their capacity/willingness to choose not to go up one further rung on whatever career ladder they are on, even though they could (probably/possibly) do so. By 'positive' choice, I mean a decision that is, as far as we can tell, a free one, not driven by  the prospect of grumpy partner unwilling to increase their share of the childcare.  It would be good, incidentally, if more men made such choices; for one thing it would reduce the instances of the…