We need a new British business bank with a clean balance sheet and an ability to expand lending rapidly to the manufacturers, exporters and high-growth companies that power our economy. Today I can announce we will have one.

I am a bit of a lefty on some issues.

According to the papers, I'm miserable, alienated, and on the brink of resignation. But that's simply not where I am.

No, and in fact I get a bit frustrated, because I'm actually quite good at one-liners, and I've had hundreds of them over the years, and they sink without trace, and I get very frustrated. Every party conference I really work on the speeches, and I always have two or three things I'm quite proud of, and no one ever remembers them.

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.

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.

Small- and medium-sized businesses need access to a diverse range of finance options, including non-bank lending. These new forms of finance are still small in scale today but they should, over time, bring additional choice and greater competition to the lending market.