This is a fascinating philosophical discussion with the authors of the new book Mine!, Michael Heller and James Salzman. Remarkably, there are just six simple rules that everyone uses to claim everything. As Michael Heller and James Salzman show – in the spirited style of Freakonomics and Nudge – ownership is always up for grabs.

Michael Heller is the Lawrence A. Wien Professor of Real Estate Law at Columbia Law School. He is the author of The Gridlock Economy: How Too Much Ownership Wrecks Markets, Stops Innovation, and Costs Lives.

James Salzman is the Donald Bren Distinguished Professor of Environmental Law, with joint appointments at the UCLA School of Law and the UCSB Bren School of the Environment. He is the author of Drinking Water: A History.

Watch the talk here