The BBC is part of the glue which binds the United Kingdom together. At those times of national moment - of joy or sadness, in the UK or around the world, at times when the nation wants to celebrate, mourn or just enjoy itself people turn to the BBC.

Over the last decade, - economists seemed to share a broad consensus about economic policy, with the old splits between monetarists and Keynesians apparently being settled by events. But the Great Recession of the last two years has changed everything.

Normally I would not recommend a book that tells you how to make money in the stock market. Most of these books are aimed at gullible folk, and they usually make much more money for their authors than they do for the investing public.

I want the BBC to be a mass market public service broadcaster still funded by the licence fee... and the licence fee is more durable than many people in the commercial sector believe.

There is an honourable tradition in British public life that those charged with authority at the top of an organisation should accept responsibility for what happens in that organisation. I am therefore writing to the prime minister today to tender my resignation as chairman of the BBC.

The BBC must never be all about ratings - or even mainly about ratings. In the past year, we have made a raft of terrific programmes which stand comparison with the best the BBC has ever done: 'Blue Planet,' 'Walking with Beasts,' 'Son of God,' 'Clocking Off,' 'The Way We Live Now,' 'Conspiracy,' 'Lost World.

It was an interesting question as to whether the BBC had a future in the digital world, and what form of market failure could justify the licence fee system.