Abstract
This introduction characterizes and positions value theory, or axiology, as a philosophical discipline. It identifies its central issues and explains how value theory overlaps partly with other areas of moral philosophy, such as metaethics and normative etics, and how it relates other areas of philosophy. The introduction also explains how value theory branches out to disciplines outside of philosophy, especially to economic theory. The Handbook is divided into three main parts, and section I.1 closes with a brief explanation and motivation of this thematic division. Sections I.2–I.4 summarize the individual chapters, give brief backgrounds to their subject matters, and explain how they are interrelated.