John Stevenson: Does the Secretary of State agree that what really matters to the growth rates and success of the Scottish economy is the Union of the United Kingdom? Does he agree that that is most demonstrated by the border area?
David Mundell: I absolutely agree. That is why I am astounded that the SNP now even disputes that there is an internal market in the United Kingdom; even by SNP standards, that is astounding. That internal market is worth four times as much to Scottish business as the whole of the EU put together.