We study the impact of a medical breakthrough (HAART) on domestic violence and illicit drug use among low-income women infected with HIV. To identify causal effects, we assume that variation in women's immune system health when HAART was introduced affected how strongly their experience of...

Polydrug abuse is common among substance abusers, but few empirical or theoretical methods accurately characterize this phenomenon. This chapter describes a simulation paradigm that was developed to apply a behavioral economic analysis to understanding polydrug abuse. Heroin abusers 'purchased'...