European Union (Withdrawal) Act

Debate between Lord Hammond of Runnymede and John Baron

Thursday 6th December 2018 Commons Chamber

[Mr Hammond]

The way to do that is to support the proposal that the Prime Minister has presented to the House, which represents a compromise, ensuring that we leave the EU and respect the referendum decision of the British people, but do so in a way designed to minimise any negative impact on our economy and maximise the opportunities for this country in the future.

[Mr John Baron (Basildon and Billericay) (Con)]

I totally concur with what my right hon. Friend said about divided nations, but may I urge him to be cautious about relying too heavily on economic forecasts? We all remember the Treasury, the Bank of England and the International Monetary Fund predicting economic woe by Christmas 2016 if we voted to leave, with talk of 500,000 extra unemployed, a do-it-yourself economic disaster and so on. It got so bad that in the end the Bank of England had to publicly apologise for getting it so wrong. Can we just make sure we keep things in perspective with regard to these economic forecasts?

[Mr Hammond]

I am grateful to my hon. Friend, because he gives me the opportunity to clarify for the House that these are not economic forecasts; they are modelled scenarios for what might happen in different circumstances. Like all economic modelling, they depend to an enormous extent on the assumptions that are made. The assumptions in this paper are transparent and the assumptions that the Bank of England made are also clear. My hon. Friend has made his point about the modelling that was done in 2016. I can only speak for the Treasury and tell him that a huge amount of work has been done since 2016 to update and upgrade the Treasury’s long-term model. That computable general equilibrium model is the one that has been used.

[Mr Baron]

The one thing that I would suggest to the Chancellor is that the problem with these forecasts is that they do not anticipate a response from the Government to a given set of scenarios. That is one reason why the forecasts in 2016 were so wrong.

[Mr Hammond]

My hon. Friend is right. Of course, this work seeks to do something quite different: it looks at five different potential scenarios and ranks them in terms of the impact that they would have. I readily concede that it is more important to look at the ranking than the absolute numbers or ranges of numbers attached to them.