Victim-Based Effects on Racially Disparate Sentencing in Ohio
Scholars have argued that African-American men accused of violently victimizing whites receive especially harsh treatment in court. This thesis was tested with samples of felony defendants processed in Ohio courts before and after the implementation of sentencing guidelines. During the preguideline period only, African-American men accused of victimizing whites were less likely than other defendants to plead guilty in exchange for reduced charges and/or sentences, and African-American men incarcerated for violent crimes against whites received longer sentences than other incarcerated offenders. During the postguideline period only, by contrast, the odds of pleading guilty in exchange for reduced charges were actually higher for African-American men accused of victimizing whites. African-American male prison terms significantly declined relative to incarcerated whites from the preguideline to the postguideline period. The interaction effect of defendant-victim race was significant during the preguideline period, not significant in the postguideline period, and significantly changed over time.
The contagious nature of imprisonment: an agent-based model to explain racial disparities in incarceration rates
We build an agent-based model of incarceration based on the susceptible–infected–suspectible (SIS) model of infectious disease propagation. Our central hypothesis is that the observed racial disparities in incarceration rates between Black and White Americans can be explained as the result of differential sentencing between the two demographic groups. We demonstrate that if incarceration can be spread through a social influence network, then even relatively small differences in sentencing can result in large disparities in incarceration rates. Controlling for effects of transmissibility, susceptibility and influence network structure, our model reproduces the observed large disparities in incarceration rates given the differences in sentence lengths for White and Black drug offenders in the USA without extensive parameter tuning. We further establish the suitability of the SIS model as applied to incarceration by demonstrating that the observed structural patterns of recidivism are an emergent property of the model. In fact, our model shows a remarkably close correspondence with California incarceration data. This work advances efforts to combine the theories and methods of epidemiology and criminology.
Gambling and Problem Gambling in Sweden: Changes Between 1998 and 2009
Gambling participation and rates of problem gambling change over time in response to a variety of factors including gambling availability, demographic changes and adaptation at individual and societal levels. These relationship are complex and only partially understood. The major aim of the present study was to provide general population estimates of gambling participation and problem gambling for Sweden and compare these estimates with estimates from a previous national study. The study was also designed to identify risk factors for problem gambling including change in these factors over time. Data are from the first phase of the Swedish Longitudinal Gambling Study (Swelogs) in which a representative sample of 8,165 people was assessed using validated problem gambling and other measures to facilitate comparison with findings from the 1997/1998 Swedish Gambling Study (Swegs). Overall, it was found that gambling participation reduced markedly, although in some population sectors increases were evident for some forms including poker and electronic gaming machines. Lifetime prevalence of probable pathological gambling increased; however, past 12 months probable pathological and problem gambling prevalence did not. Males, younger adults and people born outside Sweden were at high risk in both studies. Significant prevalence increases were evident for people aged 18–24 and those with low levels of education. The results indicate that relationships between gambling exposure, participation and problems are dynamic with shifting implications for public health and social policy.