by Rob Marchant
Setting aside for the moment the fact that the Westminster lobby seems to be yet to clock the political turmoil in store for Labour over the next six months as it approaches its special conference, there is another issue to which Labour must pay attention if it is serious about winning: its polling.
As we start to edge towards the home strait of the electoral cycle, new polling tells us some interesting things.
The conventional wisdom has become, owing to its consistent poll lead since early 2012, that “Labour is on course to win”. Meaning that, even if it means winning as part of a coalition, it would be hard for it to lose the election from here.
This is rather dangerous thinking, for two reasons.
The first is that it overlooks a statistical fallacy, in extrapolating a poll lead in a hypothetical election tomorrow directly out to an equal poll lead in eighteen months’ time. A lead now is patently not the same as a lead then.
If you ask someone the question “if there were an election tomorrow, who would you vote for”, this is not the same as calculating the expected value of their future answer in 2015, for the simple reason that there is not an election tomorrow, nor will there be, barring the “political lightning” of an unexpected no-confidence vote.








