Anne McElvoy talks to the social theorist Jeremy Rifkin who foresees the gradual decline of capitalism and the rise of a collaborative economy. As new technology enables greater sharing of goods and services, Rifkin argues that it provides a challenge to the market economy. The sociologist Saskia Sassen warns that the majority of people may not enjoy the fruits of this new world as increasing inequality, land evictions and complex financial systems lead to their expulsion from the economy. The Conservative MP Kwasi Kwarteng looks back at the history of international finance and how gold and war have shaped the economic order of today.

Producer: Katy Hickman.