Any exercise
like this must inevitably make a series of assumptions and guesses about future
Scottish Government decisions, UK Government decisions, and the economic
context in general. And the assumptions
and estimates chosen will have an enormous impact on the final result. Given that the figures are intended to
support two different perspectives, there should be no surprise that they’re
different. Opponents of independence
will choose a more pessimistic set of assumptions; supporters a more optimistic
set.
So which set of
assumptions is correct? Probably
neither. Economic forecasting is notoriously
unreliable when performed by economists, but when performed by politicians with
axes to grind…
The surprising
thing to me was that, given the difference in perspective between the two
sides, and the difficulty of making any predictions, the two results have come
out as close to each other as they have.
For sure, the difference between the two will look like a lot of money
to most Scots individually, and splitting the difference to overcome the worst
aspects of bias one way or the other is hardly the most scientific approach,
but a middle course between the two looks like independence wouldn’t actually
make much difference – it must be well within any margin of error for an
exercise of this nature.
Actually, we’ll
never know who’s ‘right’ anyway; we can’t run history forward twice to see what
really happens under each scenario. Scots
will have to listen to both sides carefully, and decide for themselves which
set of predictions they find most credible.
I rather suspect that neither set of figures will have much impact on
opinion; they will merely confirm existing opinions.
That’s far from
being a bad thing, because ultimately, the idea of independence for the
Scottish nation has never been based on economics. There are economic consequences to
independence, of course, but few people really doubt that an independent Scotland
could be made to work. But the decision
as to whether people want to take responsibility for their own future or not
has always been bigger than the question of whether they’d be better off by
doing so or not.