This paper examines the linkage between crack market activity and gunhomicide suggested by Blumstein (1995), who argues that the arrival ofcrack stimulated an increased availability of guns among juveniles. Thisgreater availability of guns, the argument continues, is responsible for thesharp upswing in juvenile homicide experienced in the United States in themid-1980s. Using city-level data on crack arrests and gun-related juvenilehomicide, we fit a change-point version of the Bass (1969) model ofinnovation diffusion. We find that, in most large American cities, thediffusion process for crack cocaine experienced an onset of dramatic growththat was followed by a similar, slightly slower growth in gun homicidescommitted by juveniles. We further use cluster analysis to find that thespatial patterning of the two processes is similar, starting on the East andWest Coasts and working their way toward other regions of the nation. Gunuse in homicide among slightly older offenders (ages 18–24) alsoexperienced a change at roughly the same time as the juveniles, but the rateof diffusion was considerably milder than for the younger group; offendersages 25 or older generally show no growth in gun-related homicide whatsoever. In addition, there is no detectable surge in juvenile nongun homicide activity. Based on these findings, we conclude that the crack cocaine markets–gun availability linkage is highly plausible, and we suggest directions for future research in clarifying the dynamics of the late-1980s surge in juvenile homicide.
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Bass, F. M. (1969). A new product growth model for consumer durables. Manage. Sci. 15(5): 215–227.
Baumer, E., Lauritsen, J. L., Rosenfeld, R., and Wright, R. (1998). The influence of crack cocaine on robbery, burglary, and homicide rates: A cross-city, longitudinal analysis. J. Res. Crime Delinq. 35(3): 316–340.
Blumstein, A. (1995). Youth violence, guns, and the illicit-drug industry. J. Crim. Law Criminol. 86: 10–36.
Blumstein, A., and Cork, D. (1996). Linking gun availability to youth gun violence. Law Contemp. Problems 59(1): 5–24.
Boyum, D., and Kleiman, M. A. R. (1995). Alcohol & other drugs. In Wilson, J. Q., and Petersilia, J. (eds.), Crime, Institute for Contemporary Studies Press, San Francisco, Chap. 13.
Cork, D. (1996). Juvenile homicide and the availability of firearms. First research (working) paper, H. John Heinz III School of Public Policy and Management, Carnegie Mellon University, Pittsburgh.
Cornell, D. G. (1993). Juvenile homicide: A growing national problem. Behav. Sci. Law 11: 389–396.
Decker, S. H., Pennell, S., and Caldwell, A. (1997). Illegal firearms: Access and use by arrestees. Research in Brief, National Institute of Justice, U.S. Department of Justice, Washington, DC.
Fourt, L. A., and Woodlock, J. W. (1960). Early prediction of market success for grocery products. J. Market. 25: 31–38.
Hamid, A. (1992). The development cycle of a drug epidemic: The cocaine smoking epidemic of 1981–1991. J. Psychoact. Drugs 24: 337–348.
Inciardi, J. A., and Pottieger, A. E. (1991). Kids, crack, and crime. J. Drug Issues 21(2): 257–270.
Johnson, B. D., Williams, T., Dei, K. A., and Sanabria, H. (1990). Drug abuse in the inner city: Impact on hard-drug users and the community. In Crime and Justice: An Annual Review (Drugs and Crime), Vol. 13, University of Chicago Press, Chicago, pp. 9–67.
Johnson, B. D., Natarajan, M., Dunlap, E., and Elmoghazy, E. (1994). Crack abusers and noncrack abusers: Profiles of drug use, drug sales and nondrug criminality. J. Drug Issues 24(1): 117–141.
Kass, R. E., and Raftery, A. E. (1995). Bayes factors. J. Am. Stat. Assoc. 90(430): 773–795.
Mahajan, V., Mason, C. H., and Srinivasan, V. (1986). An evaluation of estimation procedures for new product diffusion models. In Mahajan, V., and Wind, Y. (eds.), Innovation Diffusion Models of New Product Acceptance, Ballinger, Cambridge, MA, pp. 203–232.
Mahajan, V., Muller, E., and Bass, F. M. (1993). New-product diffusion models. In Eliashberg, J., and Lilien, G. (eds.), Handbooks in Operations Research and Management Science, Vol. 5, Elsevier, New York, Chap. 8.
Mansfield, E. (1961). Technical change and the rate of imitation. Econometrica 29: 741–766.
Prothrow-Stith, D., and Weissman, M. (1991). Deadly Consequences: How Violence is Destroying our Teenage Population and a Plan to Begin Solving the Problem, Harper Collins, New York.
Schmittlein, D. C., and Mahajan, V. (1982). Maximum likelihood estimation for an innovation diffusion model of new product acceptance. Market. Sci. 1(1): 57–78.
Schwarz, G. (1978). Estimating the dimension of a model. Ann. Stat. 6(2): 461–464.
Sheley, J. F., and Wright, J. D. (1995). In the Line of Fire: Youth, Guns, and Violence in Urban America, Aldine de Gruyter, New York.
Sultan, F., Farley, J. U., and Lehmann, D. R. (1990). A meta-analysis of applications of diffusion models. J. Market. Res. 27: 70–77.
United States Department of Justice. Office of Justice Programs. Bureau of Justice Statistics (1992). Drugs, Crime, and the Justice System: A National Report from the Bureau of Justice Statistics, U.S. Government Printing Office, Washington, DC.
United States Sentencing Commission (1995). Special Report to the Congress: Cocaine and Federal Sentencing Policy. World Wide Web address: http:yywww.ussc.gov.
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Cork, D. Examining Space–Time Interaction in City-Level Homicide Data: Crack Markets and the Diffusion of Guns Among Youth. Journal of Quantitative Criminology 15, 379–406 (1999). https://doi.org/10.1023/A:1007540007803
- time interaction
- city-level data
- crack markets