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'...

Objectives: This study estimates the value that clients place on drug rehabilitation services at the time of intake and how this value varies with the probability of success and availability of social services.Methods: We interviewed 241 heroin users who had been referred to, but had not yet...