In the past 75 years the study of the origins and economic consequences of innovation has grown well beyond the imagination of the pioneers in the field. This volume of contributions is a grand testament to the present scale and diversity of understanding in this challenging field. Here the reader can sense the deep complexity of innovation processes in terms of the prevailing incentives to innovate, the resources required to innovate, the capabilities to innovate and, most important of all, the creative opportunities to innovate; all to be understood within a penumbra of organisations, instituted rules and public policies that shape and constrain. The richness and diversity of the topics is manifest but, just as importantly, they are unified by the sense of placing innovation processes within worlds of knowledge and economic activity that are open, creative, interacting systems that are forever generating challenges to the status quo. Anyone who is interested in one of the great economic and social questions of our time, namely, how wealth emerges from human knowing, will find sustenance and challenge aplenty in this fine volume. -- Stan Metcalfe, University of Manchester, UK Antonelli has assembled a virtual who's who of scholars working in the area of the economics of knowledge and technology. The book with its 66 entries is a must-read for anyone interested in the area be they researchers or policy makers. -- Paula Stephan, Georgia State University and National Bureau of Economic Research, US Understanding innovation and how it draws upon and creates knowledge, requires us to view the economy as a complex system. This Encyclopedia offers an outstanding collection of entries on the functioning of innovation processes from a complexity perspective provided by well-established contributors and an exciting new breed of researchers. -- John Foster, The University of Queensland, Australia