A number of supply and demand-side indicators provide support for heroin's 're-incubation' in an era of crack cocaine's decline. The present paper assesses the extent to which these and other trends converge with reports of heroin market participants operating on the streets of a large...

Drug addiction reflects abnormal operation of normal neural circuitry. More than physical dependence, addiction represents changes in the brain that lead to increased craving and diminished capacity for the control of impulses. Given the growing biological understanding of addiction, it is...

Economics deals with the allocation of scarce resources in a society with unlimited desires. When resources become scarce, people face difficult choices. This general concept holds true in the field of drug addiction treatment as well. Since drug use and its consequences are associated with...