Progress beyond growth: some insights from Marshall's final book

Alfred Marshall had a very challenging project to write a treatise in two or more volumes that could contain his main interests and reflections. Instead of that treatise, Marshall published three books (Principles of Economics, Industry and Trade and Money Credit and Commerce). They cover only in part the ground that the treatise should have contained. That is why Marshall went on with the idea of publishing another final book. In this paper, we give a brief summary of the structure and the contents of this book, focusing more in detail on some subjects particularly interesting and meaningful.