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Do Traffic Tickets Reduce Motor Vehicle Accidents? Evidence from a Natural Experiment
Author(s) -
Luca Dara Lee
Publication year - 2014
Publication title -
journal of policy analysis and management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.898
H-Index - 84
eISSN - 1520-6688
pISSN - 0276-8739
DOI - 10.1002/pam.21798
Subject(s) - natural experiment , ticket , ordinary least squares , exploit , advertising , computer security , transport engineering , business , computer science , engineering , statistics , mathematics , machine learning
This paper analyzes the effect of traffic tickets on motor vehicle accidents. Ordinary least squares (OLS) estimate may be upward biased because police officers tend to focus on areas where and periods when there is heavy traffic and thus higher rates of accidents. This paper exploits the dramatic increase in tickets during the Click‐it‐or‐Ticket campaign to identify the causal impact of tickets on accidents using data from Massachusetts. I find that tickets significantly reduce accidents and nonfatal injuries. I provide suggestive evidence that tickets have a larger impact at night and on female drivers.