Explain behavior with 3rd theory – Strain Theory

Introduction of Strain Theory
The example of Strain Theory
Explanation of how Strain Theory relates to deviant behavior of heroin use.

 reference：
Eaves, Cindy S. 2004. Heroin Use among Female Adolescents: The Role of Partner   Influence in Path of Initiation and Route of Administration. The American Journal of Drug and Alcohol Abuse 30(1):21“38.
Gainey, Randy R., Richard F. Catalano, Kevin R. Haggerty, and Marilyn J. Hoppe. 1997. Deviance among the Children of Heroin Addicts in Treatment: Impact of Parents and Peers. Deviant Behavior 18(2):143“59. 
Bohnert, Amy S., Catherine P. Bradshaw, and Carl A. Latkin. 2009. A Social Network Perspective on Heroin and Cocaine Use among Adults: Evidence of Bidirectional Influences. Addiction 104(7):1210“18.