I heard about this book on the Theology of Business podcast, which peaked my interest in the topic of trying to measure other forms of capital. The premise of the book is that businesses usually focus merely on financial capital, where there is a need to measure and manage other types of capital that affect businesses, such as human capital (individual's skills and ability to work productively), social capital (a group's or community's ability to work together, largely based on trust), and natural capital (natural resources that the company uses from the earth). The authors also take some principles from the year of jubilee as described in the Bible, but in the end it seemed pretty limited and not terribly clear.
Overall, I found the premise interesting, but the delivery of the content was a little bit of a slog. I appreciated the explanations of how they actually measure these different forms of capital, but I found myself just trying to get through by about half way through. I also wished there was better explanation on how the year of jubilee informed their approach to business. So it was an interesting idea, and I was glad to get more detail about their methodology than I did from the podcast, but not overly compelling as a whole.