Key points are not available for this paper at this time.
George L. Kelling, William J. Bratton, Declining Crime Rates: Insiders' Views of the New York City Story, The Journal of Criminal Law and Criminology (1973-), Vol. 88, No. 4, Symposium: Why Is Crime Decreasing? (Summer, 1998), pp. 1217-1232
Kelling et al. (Thu,) studied this question.