This compact paperback, distinguished by its brevity and clarity, studies a limited number of topics in the economic analysis of the law in order to help students learn how to approach legal rules like an economist. Among the many attributes of this venerable course book: Presents a good basic knowledge of economic principles and issues pertaining to the law. Uses a normative approach that shows students how to assess legal rules and policies in terms of economic and social goals. Focuses on a set of core topics, including property, contracts, torts, criminal law, and litigation. Offers clear explanations in accessible terms without using specialized jargon, math, or graphs. Shows students how to think like an economist and understand legal issues from an economic perspective. New to the Fourth Edition: Updated and refined throughout. The chapter on probability rules has been expanded. A new chapter that discusses the liability system versus the regulatory system. The bibliography has been completely updated. A short appendix with a sample syllabus that could be used as a basis for teaching the course or for a student to follow for additional readings. An Introduction to Law and Economics, Fourth Edition, continues to offer students succinct, clear explanations of the economic analysis of law and the legal system.