Chapter 1. Introduction.- Chapter 2. Societal-level Changes and Criminogenic Strain.- Chapter 3. Individual-level Changes and Criminogenic Strain.- Chapter 4. Mediating Mechanisms of Strain and Delinquency.- Chapter 5. Coping Mechanisms for Strain and Delinquency.- Chapter 6. Strain, Coping, and Delinquency among Different Groups of Youth.- Chapter 7. Conclusion.