HIERARCHICAL BAYESIAN ANALYSIS OF ARREST RATES
Jacqueline Cohen, Daniel Nagin, Garrick Wallstrom and Larry Wasserman
A Bayesian hierarchical model provides the basis for calibrating the
crimes avoided by incarceration of individuals convicted of drug
offenses compared to those convicted of nondrug offenses. Two methods
for constructing reference priors for hierarchical models both lead to
the same prior in the final model. We use Markov chain Monte Carlo
methods to fit the model to data from a random sample of past arrest
records of all felons convicted of drug trafficking, drug possession,
robbery, or burglary in Los Angeles County in 1986 and 1990.
Keywords: Crime data, Hierarchical Models, Markov chain Monte Carlo.
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