Green Swans draws on Elkington’s first-hand experience in some of the world’s best-known boardrooms and C-suites. Using case studies, real-world examples, and profiles on emergent technologies, Elkington shows how the weirdest “Ugly Ducklings” of today’s world may turn into tomorrow’s world-saving Green Swans.

“The key lesson of the bubble is that unregulated competition for mortgage credit risk will inevitably result in a deterioration of lending standards and an unsustainable bubble. Competition in the housing finance market is desirable—but only along the right dimensions. We should encourage competition in terms of operational efficiency and consumer-friendly innovation, not a race to the bottom for credit risk.”

In After Hours Harvard professors discuss news at the crossroads of business and culture. In this episode Felix welcomes HBS professor Rebecca Henderson, who argues climate change demands a reimagination of capitalism. She is the author of Reimagining Capitalism in a World Onfire, which appears this month with Public Affairs Books.