Intensive interviews were conducted with 39 women who used crack cocaine and had multiple sex partners within the week preceding the interviews. The age of subjects averaged 32 years, and about half said they had less than a 12th grade education. Information was obtained on drug history, experience as a prostitute, and related matters. An analysis of subject statements about crack cocaine use and its relation to involvement in prostitution led to the identification of three characteristic responses: addiction, utility, and marketplace economics. Nearly all women indicated some level of addiction to crack cocaine, but the link between prostitution and crack cocaine was more complex. This link involved specific utilitarian aspects of the drug, as well as the general symbolic value of crack cocaine as a "sex drug." In addition, prostitution and crack cocaine use were part of larger economic processes that were similar to those associated with typical workers. It is pointed out that more attention is being focused on prostitution and drug use due to the spread of AIDS and that a more holistic understanding of prostitutes who abuse crack cocaine and their economic relationships is needed. 34 references and 2 notes