The hon. Lady knows that we have legislated to place a lock on class 1 national insurance contributions, VAT and income tax, but I think that class 4 contributions—as part of creating a more level playing field—are a different matter. For me, it is about fairness and pragmatism. The playing field is so skewed that social justice, fairness and doing the right thing must come first. I regret the fact that the Labour party do not seem to take that position or agree with it.