"In this paper we investigate the relationship between union membership and crime. Using state level data between 1993 and 2006, we find the elasticity of crime with respect to union membership is roughly ?0.5. From our results, we predict the decline in union membership has increased crime by 15 per cent since 1993. Furthermore, we find the elasticity between union jobs and crime is larger in absolute value when using an instrumental variable approach to control for the impact unions have on labor market efficiency."

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