Introduction / Marcel Boyer, Michael Trebilcock, and David Vaver -- Extension of intellectual property rights / Teresa Scassa -- Commentary on "Extension on intellectual property rights" / Ejan Mackaay -- Commentary : the social costs of rent-seeking by intellectual property owners / Michael J. Meurer -- Tying and intellectual property / Edward M. Iacobucci and Ralph A. Winter -- Commentary : bright lines and cautionary notes / Timothy J. Brennan -- Commentary on "Tying and intellectual property" / Richard F.D. Corley and Navin Joneja -- Effects of "authorized generics" on Canadian drug prices / Paul Grootendorst -- Commentary of "Effects of 'authorized generics' on Canadian drug prices" / Aidan Hollis -- Compulsory licensing / Abraham Hollander -- Commentary on "Compulsory licensing" / Donald McFetridge -- Commentary : mending the gap : intellectual property, competition law and compulsory licensing / E. Richard Gold -- An evaluation of collective copyright management in Canada / Jacques Robert -- Commentary on "An evaluation of collective copyright management in Canada" / Paul Audley -- Commentary : is collective administration of copyrights justified by the economic literature? / Ariel Katz.