91福利社

Paul Seabright examines how goods and services were exchanged in our earliest history.

He talks to the primatologist Sarah Hardy about hunter-gatherer child-care arrangements, and what they teach us about the willingness of human beings to trade. And in New Zealand, Paul meets the historian Kerry Howe to learn about the origins of early trade networks across the Pacific Ocean.

Producer: Chris Ledgard.

First broadcast on 91福利社 Radio 4 in January 2018.