NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Right-to-Carry Laws and Violent Crime: A Comprehensive Assessment Using Panel Data, the LASSO, and a State-Level Synthetic Controls Analysis

John J. Donohue, Abhay Aneja, Kyle D. Weber

NBER Working Paper No. 23510
Issued in June 2017, Revised in January 2018

---- Acknowledgements ----

Previously circulated as "Right-to-Carry Laws and Violent Crime: A Comprehensive Assessment Using Panel Data and a State-Level Synthetic Controls Analysis." We thank Dan Ho, Stefano DellaVigna, Rob Tibshirani, Trevor Hastie, Stefan Wager, Jeff Strnad, and participants at the 2011 Conference of Empirical Legal Studies (CELS), 2012 American Law and Economics Association (ALEA) Annual Meeting, 2013 Canadian Law and Economics Association (CLEA) Annual Meeting, 2015 NBER Summer Institute (Crime), and the Stanford Law School faculty workshop for their comments and helpful suggestions. Financial support was provided by Stanford Law School. We are indebted to Alberto Abadie, Alexis Diamond, and Jens Hainmueller for their work developing the synthetic control algorithm and programming the Stata module used in this paper and for their helpful comments. The authors would also like to thank Alex Albright, Andrew Baker, Jacob Dorn, Bhargav Gopal, Crystal Huang, Isaac Rabbani, Akshay Rao, Vikram Rao, Henrik Sachs and Sidharth Sah who provided excellent research assistance, as well as Addis O’Connor and Alex Chekholko at the Research Computing division of Stanford’s Information Technology Services for their technical support. The views expressed herein are those of the author and do not necessarily reflect the views of the National Bureau of Economic Research.

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