Abstract
Prudential value is the good for a person. It is often identified with well-being, so that well-being is not one prudential value among many, but instead the most general category of prudential value. This chapter considers the main theories of well-being—including eudaimonism, desire satisfactionism, and hedonism—in light of two main theoretical desiderata: subject-relativity and normativity. A good theory of well-being ought to explain how its conception of well-being is good for the person whose well-being it is. A good theory should also explain what it is about well-being as conceived by the theory that gives us reasons to pursue and promote it.