My job is to support businesses, that means promoting British commerce in the big emerging markets that have been neglected in the past. It means keeping Britain open to inward investors, trade and skilled workers. It means cutting red tape which is suffocating growing companies which create jobs.

When my job was attempting to predict future economic developments for the Shell oil company, I was frequently reminded of an Arabic saying: 'Those who claim to foresee the future are lying, even if by chance they are later proved right.'

So I went into government with a clear mind about what the problems were, and what needed to be done.

Housing associations have fingered the fact that they cannot use their assets as liquidity due to Bank of England rules unlike their continental equivalents. This has emerged to be one of the main bottlenecks to getting investment going in the U.K. It is a Bank of England issue.

Many of our problems are home-grown. Gordon Brown regularly advised the rest of the world to follow his British model of growth. But the model was flawed. It led to the highest level of household debt in relation to income in the world.

Regulators are a backstop: they don't own banks. The governance at the top of our leading banks has been shown to be lamentably weak. No one at the top of Barclays will take responsibility for systemic abuse.

I made friends with a boy who was a communist when I was 13 and that broadened my political views, but it also brought me into conflict with my father who was very Right-wing.