Part One argued that we have been measuring something that cannot be measured, and paying people on the result. An argument like that owes the reader an alternative. This part sets one out, in enough detail to adopt.
No company has run FairShare. What follows is a design, and where the text describes what it does, read that as what the rules produce on paper. The arithmetic can be checked by anyone. Whether people will behave as the design hopes is a question only a real company can answer.
Chapter 7 gives the whole model on one page. Chapters 8 to 13 take its parts one at a time. Chapter 14 covers adopting it from different starting points, Chapter 15 follows one company through three years, and Chapter 16 answers objections. Every example uses the same company and the same figures, so a number met in one chapter means the same thing in the next.