UKJan 24 2018

Prime minister Corbyn? The prospect for client portfolios

  • Learn what a hard-left government in power might look like.
  • Understand what impact Labour's manifesto might have on the economy and investments if they were in power.
  • Understand any similarities Mr Corbyn's policies have with the Conservative Budget and the impact John McDonnell might have as future chancellor.
  • Learn what a hard-left government in power might look like.
  • Understand what impact Labour's manifesto might have on the economy and investments if they were in power.
  • Understand any similarities Mr Corbyn's policies have with the Conservative Budget and the impact John McDonnell might have as future chancellor.
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Prime minister Corbyn? The prospect for client portfolios

Assessing the potential impact of Labour’s policies on UK GDP over five or 10 years is difficult. On the one hand, the macroeconomic consequences of the Labour manifesto, taken at face value, would likely raise GDP growth.

Oxford Economics and Capital Economics both conclude that ending the fiscal squeeze by investing in infrastructure is most likely to lead to higher growth within this Parliament. Although four new bank holidays would exert a significant effect in the opposite direction, and the bold increase in minimum wages also poses a risk.

The microeconomic consequences would likely lower GDP as higher taxation alters the attitudes of firms and households toward saving, spending and investing.

The impact of nationalisation on total economic productivity is also a matter of considerable concern, especially if it deters future direct investment from overseas.

On balance

As for the UK’s government borrowing, Oxford Economics estimates that national debt would be around 6 per cent of GDP higher by 2020 (including nationalisations) under a Corbyn government, and the UK debt ratio an estimated 95 per cent, still well within the better half of developed countries. Of course, this does not assume a collapse in the capital account.

A recent academic paper uses a framework to estimate a country’s maximum sustainable debt: the point at which the government debt position does not just become a drag on growth but becomes unstable.

For the UK, the authors estimate a maximum debt-to-GDP ratio of 126 per cent. Even if tax shortfalls from Labour’s plan are made up with higher borrowing, it is difficult to envisage the total debt ratio approaching anything like that of France or Japan, neither of which pay a risk premium to access the bond market.

So, for all the bluster, there is no major policy that is radically hard left, and no single policy that should make capital head for the hills.

But it may be a case of straws and camels’ backs.

Modestly higher taxes, modestly higher interest rates, significantly higher minimum wages and the threat of nationalisation all add up. And with the threat of Brexit still clouding the horizon, it may be one disincentive too many. 

Corbyn’s left-hand man

No doubt many of you will have been muttering throughout this article: “But how do we know Labour will stick to its manifesto?”

Like all great questions, it’s a very difficult one to answer.

Our economic analysis assumes it will because it’s impossible to know what’s in another person’s head. It’s easier to do a bit of qualitative tweaking to the “manifesto scenario” dependent on where you think it is most likely to diverge. 

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