This new edition is a fully updated, clear and concise account of the law of unjust enrichment, and attempts to move away from the usage of obscure terminology inherited from the past. It organises modern law around five simple questions: Was the defendant enriched? If so, was it at the claimant's expense? If so, was it unjust? The fourth question is then what kind of right the claimant has and the fifth is whether the defendant has any defenses.
Part One: Introduction 1. A Core Case 2. Three Maps Part Two: Enrichment at the Expense of the Claimant 3. Enrichment 4. At the Expense of the Claimant Part Three: Unjust 5. Changing Direction 6. Absence of Basis Part Four: The Right to Restitution 7. Rightsin personam 8. Rightsin rem Part Five: Defences 9. Disenrichment and Disimpoverishment 10. Unjust-Related Defences Part Six: Competing Terminology 11. Competing Generics 12. Persistent Fragments