2015 - The Knockoff Economy How Imitation Sparks Innovation (Paperback) ISBN-13: 9780199361090 ISBN-10: 0199361096 Genres: Business & Money, Law ? 2012 - The Knockoff Economy How Imitation Spurs Innovation (Hardcover) ISBN-13: 9780195399783 ISBN-10: 0195399781 Genres: Business & Money, Law ? |