The book serves as an extensive (second-year PhD level) course on asset pricing in discrete time. It begins by building a foundation of asset pricing models using simple static frameworks. The topics covered in this first part – risk aversion, static portfolio choice, equilibrium asset pricing, and the stochastic discount factor – are concepts that every macro-finance economist should understand and be able to explain by heart.
For the majority of the book, it extends into (ii) intertemporal models and (iii) explores the importance of investor heterogeneity. These parts serve as a valuable survey or reference on various aspects and extensions of basic models. In this way, it goes beyond core asset pricing theory by placing strong emphasis on the empirical motivation behind the modeling choices.
At times, it does feel like an endless list of modifications to account for reasonable postulations or stylized facts from data – but isn't that the nature of a reference text? I appreciate the intuition that Campbell provides to the reader, and I'm waiting to read Cochrane's book more thoroughly to make a proper comparison and better understand the differences.
Overall, this is a valuable book to keep on the shelf for quick review or when looking to extend a basic asset pricing idea in a particular direction.