Read Oxford Economics - The economic contribution of rail.
I will admit that I don't fully understand this GVA stuff (not sure you do either)
I do have some understanding of "this GVA stuff", though it is very rusty.
Life is too short to read the full document thoroughly, but I thought that I should take a look.
GVA is Gross Value Added, a measure of economic activity. It is similar to GDP, but has a different treatment of taxes, particularly VAT.
Oxford Economics will have used GVA not GDP because it is GVA not GDP that has the statistical breakdowns that they need to do the analysis.
Okay that was based on 2019 figures, but it’s an indication of the concept of why spending money on the railway results in a far larger financial benefit to the wider economy.
In one respect using the 2019 data is quite convenient, because UK GVA was almost exactly £2000bn in 2019, which makes some sums easy!
A report by a commercial organisation paid for by the railway industry association!
The report says who they are. Just before the contents there are 9 logos, most of which you will recognise, beneath the title "This report has been kindly supported by our industry partners".
Oxford Economics (one of the world’s leading economic research organisations) appear to disagree with you, and recently concluded that the railway as a whole adds over £40bn to the UK economy
The £43bn total figure comprises about £12bn GVA of the railway industry itself, together with about £18bn GVA of the railway supply industry, about £1bn of retail GVA at stations, and about £12bn GVA of "induced impacts". The last of these is an estimate of the GVA resulting from employees of the railway, railway supply and railway retail industries spending in the wider economy. For those of you here who work in the rail industry, that's what you spend in the supermarket, the pub etc.
Their estimated "footprint" (their term not mine) of the railway, at £43bn GVA, is thus about 2% of UK GVA.
And the 2.5 multiplier is getting from the £12bn GVA of the railway industry itself to the £43bn GVA once they have added in the other bits. The difference of £31bn is about 2.5 times the £12bn GVA of the railway industry itself.
The report openly admits that there are "additional benefits of rail not captured in this study", including environmental and connectivity impacts.
with every £1 in subsidy returning approx. £2.50
So it doesn't mean that!
And you would still need to prove that that £1 for the railway is returning more than spending it on defence or a hospital etc
It would be possible to attempt a similar analysis for health expenditure or defence expenditure, for example, but I haven't looked for those. I'll resist the temptation to speculate on whether health or defence would have bigger or smaller multipliers than rail.