In the aftermath of the credit crunch people are thinking about the way banks work, the way financial markets operate, and the values and purposes of the companies that use those markets.

And some of the big management thinkers are beginning to put forward ideas that challenge many of the assumptions that have dominated the way business has worked for the past several decades.

In this progamme Peter Day hears from management guru Gary Hamel and gets his thoughts on the future of capitalism.