This course explores three topics: choice of law doctrine, constitutional limits on choice of law doctrine, and enforceability of judgments, including res judicata and collateral estoppel principles. Half of the course is spent on choice of law which provides students an opportunity to consider both the policy and practical justifications that support how courts exercise power over the substance of disputes. It gives students an opportunity to think about the material learned in civil procedure and to gain a better understanding of the way in which principles of jurisdiction, choice of law, and enforceability of judgments relate. Because modern thinking about choice of law gives great weight to the underlying purpose of a rule of law, the course gives students an opportunity to exercise some creative reasoning. While personal jurisdiction is not covered in depth, it is covered in review in many of the cases.