In 1827, Edinburgh, Scotland was a world centre for anatomical study, but there was a shortage of cadavers for medical students to dissect. Two men, William Burke and William Hare, spotted a grim business opportunity. They began sourcing bodies - by any means possible...

In this episode of Cautionary Tales - recorded live at the Podcast Show in London - true crime meets economics. Tim Harford's hair-raising story explores a question: what makes some markets acceptable, and others repugnant?

For a full list of sources, see the show notes at timharford.com