When I was a child we were sufficiently well off for me to be a picky eater and I still cannot eat vegetables cooked in the traditional British manner.

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.

Where there is flagrant abuse of corporate entities we must and will seek to tackle it.

On banks, I make no apology for attacking spivs and gamblers who did more harm to the British economy than Bob Crow could achieve in his wildest Trotskyite fantasies, while paying themselves outrageous bonuses underwritten by the taxpayer. There is much public anger about banks and it is well deserved.

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.

My time at Shell was a most valuable experience because it taught me to look at the world in a long-term way. Shell takes a 20-year view on events and plans for different scenarios. It makes you see the world as a kind of large matrix.

The degree of leverage now being reversed is on a staggering scale, and the underlying global imbalances – notably between the savers and the spenders – will require long and painful adjustment.