Model uncertainty and the effect of shall-issue right-to-carry laws on crime

In this paper, we explore the role of model uncertainty in explaining the different findings in the literature regarding the effect of shall-issue right-to-carry concealed weapons laws on crime. In particular, we systematically examine how different modeling assumptions affect the results. We find l...

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Bibliographic Details
Published in:European economic review 2016-01, Vol.81, p.32-67
Main Authors: Durlauf, Steven N., Navarro, Salvador, Rivers, David A.
Format: Article
Language:English
Subjects:
Economic models
Model uncertainty
Right-to-carry laws
Studies
Uncertainty
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Summary:In this paper, we explore the role of model uncertainty in explaining the different findings in the literature regarding the effect of shall-issue right-to-carry concealed weapons laws on crime. In particular, we systematically examine how different modeling assumptions affect the results. We find little support for some widely used assumptions in the literature (e.g., population weights), but find that allowing for the effect of the law to be heterogeneous across both counties and over time is important for explaining the observed patterns of crime. In terms of model uncertainty, we find that there is substantial variation in the estimated effects for each model across all dimensions of the model space. This suggests that one should be cautious in using the results from any particular model to inform policy decisions.
ISSN:0014-2921
1873-572X
DOI:10.1016/j.euroecorev.2015.07.020