satisfy this independence requirement, how one could gather the data, the potential for building in evaluation at the stage of policy change, and other possible research and data designs. Future work might begin by considering the utility of emerging data systems, described in this report, for studying the impact of different market interventions, This type of effort should be take place in collaboration with a group of survey statisticians, social scientists, and representatives from the Bureau of Justice Statistics and the National Institute of Justice.



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