The Lauterpacht Centre for International Law (LCIL), University of Cambridge hosts a regular Friday lunchtime lecture series on key areas of International Law. Previous subjects have included UN peacekeeping operations, the advisory jurisdiction of the International Court of Justice, the crime of aggression, whaling, children and military tribunals, and theories and practices for proving individual responsibility criminal responsibility for genocide and crimes against humanity. This lecture, entitled 'Can Behavioral Economics Inform International Legal Theory?', was delivered at the Lauterpacht Centre on Friday 22nd January 2016 by Anne van Aaken, Professor Law and Economics, University of St Gallen. For more information about the series, please see the LCIL website at http://www.lcil.cam.ac.uk/