Search Results Use the search box below to revise your search, or start a new search. Studies (3) Variables Publications Your query returned 3 studies. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Drug Use Forecasting in 24 Cities in the United States, 1987-1997 (ICPSR 9477) United States Department of Justice. Office of Justice Programs. National Institute of Justice 2. Criminal Histories and Criminal Justice Processing of Drug Use Forecasting (DUF) Sample Members in Washington, DC, 1989-1991 (ICPSR 6122) Carver, Jay; Wish, Eric; Smith, Douglas A.; et al. 3. Estimating the Elasticities of Demand for Cocaine and Heroin with Data from 21 Cities from the Drug Use Forecasting (DUF) Program, 1987-1991 (ICPSR 6567) Caulkins, Jonathan P.