Abstract
In this article the author discusses the main contributions and controversial issues raised in an important bookTechnical change and economic theory. The book represents a cornerstone in theorizing technical change. The main features of the book are summarized and the author discusses a number of controversial issues, such as: the evolutionary perspective; the notion of a technoeconomic paradigm; the analysis of firms' technological behaviour; the notion of institutions; the problem of ‘catching up’ in technology; the treatment of formal modelling and policy implications; and treatment of social aspects of technical change. The author concludes that the book should be treated as a work in progress and not as a fully developed and comprehensive approach. However, the critical mass of findings, gathered in this book, is important reading, and represents an important step forward in the exploration of a new approach to economic theory.