​Sergio Mittlaender is a professor of law at FGV Direito SP in São Paulo, Brazil, and a senior research fellow at the Max Planck Institute for Social Law and Social Policy in Munich, Germany. He holds a Ph.D. in law and economics from the Universities of Bologna, Hamburg, and Rotterdam. His research focuses on private law, especially in contracts and torts, social law, and public policies against corruption and discrimination. His research approach is empirical, adopting methods such as field and laboratory experiments, as well as theoretical, focusing on the economic analysis of law, behavioral economics, and game theory. Mittlaender's articles have been published in renowned national and international publications, such as Journal of Empirical Legal Studies, American Law & Economics Review, Journal of Economic Behavior & Organization, Public Choice, and Journal of Economic Psychology.

• Chapter 1. Introduction.- Chapter 2. Theories of Contract and Contract Law.- Chapter 3. Disagreement, Conflict, and Retaliation in Breach of Contract.- Chapter 4. Reciprocity and Legal Relief in Breach of Contract.- Chapter 5. Retaliation, Remedies, and Contracts.- Chapter 6. Implications and Normative Analysis of Remedies for Breach.- Chapter 7. Conclusion.

​Sergio Mittlaender is a professor of law at FGV Direito SP in São Paulo, Brazil, and a senior research fellow at the Max Planck Institute for Social Law and Social Policy in Munich, Germany. He holds a Ph.D. in law and economics from the Universities of Bologna, Hamburg, and Rotterdam. His research focuses on private law, especially in contracts and torts, social law, and public policies against corruption and discrimination. His research approach is empirical, adopting methods such as field and laboratory experiments, as well as theoretical, focusing on the economic analysis of law, behavioral economics, and game theory. Mittlaender's articles have been published in renowned national and international publications, such as Journal of Empirical Legal Studies, American Law & Economics Review, Journal of Economic Behavior & Organization, Public Choice, and Journal of Economic Psychology.

• Chapter 1. Introduction.- Chapter 2. Theories of Contract and Contract Law.- Chapter 3. Disagreement, Conflict, and Retaliation in Breach of Contract.- Chapter 4. Reciprocity and Legal Relief in Breach of Contract.- Chapter 5. Retaliation, Remedies, and Contracts.- Chapter 6. Implications and Normative Analysis of Remedies for Breach.- Chapter 7. Conclusion.

​Sergio Mittlaender is a professor of law at FGV Direito SP in São Paulo, Brazil, and a senior research fellow at the Max Planck Institute for Social Law and Social Policy in Munich, Germany. He holds a Ph.D. in law and economics from the Universities of Bologna, Hamburg, and Rotterdam. His research focuses on private law, especially in contracts and torts, social law, and public policies against corruption and discrimination. His research approach is empirical, adopting methods such as field and laboratory experiments, as well as theoretical, focusing on the economic analysis of law, behavioral economics, and game theory. Mittlaender's articles have been published in renowned national and international publications, such as Journal of Empirical Legal Studies, American Law & Economics Review, Journal of Economic Behavior & Organization, Public Choice, and Journal of Economic Psychology.

• Chapter 1. Introduction.- Chapter 2. Theories of Contract and Contract Law.- Chapter 3. Disagreement, Conflict, and Retaliation in Breach of Contract.- Chapter 4. Reciprocity and Legal Relief in Breach of Contract.- Chapter 5. Retaliation, Remedies, and Contracts.- Chapter 6. Implications and Normative Analysis of Remedies for Breach.- Chapter 7. Conclusion.