The book explains in an easy-to-understand way why growth rates do not increase infinitely despite the progress of knowledge. It traces, in economic terms, the differences in per capita income between countries, the role of technology, ideas, and the non-rivalrous nature of knowledge, as well as the effects of innovation and demographic changes on growth.

It is revised and enriched with new information and examples based on long-term research. In addition to the basic Solow model, the Romer and Schumpeter models are presented in separate chapters, helping the reader to identify their differences, while including new applications in areas such as the relationship between competition and innovation, the slowdown of entrepreneurial dynamism, and the social efficiency of Research and Development.

The new chapter on the future of economic growth shows how economists think. Answering the question "why are some countries rich and others poor," the book is one of the most well-known university macroeconomics textbooks and a useful tool in courses on economic growth and development and advanced macroeconomics.