We're very pleased to announce the first PEA Soup discussion of a paper published in Politics Philosophy & Economics. We will kick off with A.J. Julius's piece 'The Possibility of Exchange', which is available here. The discussion will open on Monday, December the 16th. Victor Tadros has kindly agreed to write a critical précis, and Richard Arneson, Stephanie Collins, Mark Reiff, Nicos Stravoupalos and Andrew Williams will take part in the discussion. We're looking forward to a great conversation!