Marianna Mamou and Antoinette Zuidweg of UBS discuss the challenges and opportunities presented by the fast-changing face of entrepreneurship. In the US, women now own more than 40 per cent of businesses – but is funding keeping pace?

The blue economy, part one
16:18

250 years of US innovation: Still the home of the brave?
18:51

Bonus edition: Nobel laureate Joel Mokyr
15:12