<i>'This book is a path-breaking work. It is unique in the economic growth literature for its incorporation of diffusion theory into an economic growth model. In constructing the model, the author has drawn on both neo-classical and evolutionary growth theory. He uses the model to address the energy-efficiency paradox - why are efficient energy technologies often adopted so slowly? A significant, and counterintuitive, finding is that subsidies designed to speed-up the adoption of energy saving technologies in the short run may have an adverse effect in the longer run, due to the premature adoption of inferior technologies. Therefore, an important policy implication is that increased subsidies for energy saving technologies can be counterproductive.'</i>

- Vernon W. Ruttan, University of Minnesota, Twin Cities, US,

<i>'Energy and environmental policy discussions increasingly focus on issues related to technological change. In this new book, Peter Mulder recognizes that technological change will play an absolutely central role in achieving increases in energy efficiency, thereby mitigating what might otherwise be unacceptable trade-offs between economic growth and environmental quality. He focuses on the role of uncertainty, which is central to investment, in order to investigate how microeconomic decisions give rise to macroeconomic patterns. In a broad-ranging study, he builds upon key developments in the economic theory of technological change to develop his theoretical model and empirical analysis.'</i>

- Robert N. Stavins, Harvard University, US,