NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Intended and Unintended Effects of Youth Bicycle Helmet Laws

Christopher S. Carpenter, Mark F. Stehr

NBER Working Paper No. 15658
Issued in January 2010
NBER Program(s):   CH   HE   LE

Over 20 states have adopted laws requiring youths to wear a helmet when riding a bicycle. We confirm previous research indicating that these laws reduced fatalities and increased helmet use, but we also show that the laws significantly reduced youth bicycling. We find this result in standard two-way fixed effects models of parental reports of youth bicycling, as well as in triple difference models of self-reported bicycling among high school youths that explicitly account for bicycling by youths just above the helmet law age threshold. Our results highlight important intended and unintended consequences of a well-intentioned public policy.

download in pdf format
   (227 K)

email paper

The NBER Bulletin on Aging and Health provides summaries of publications like this.  You can sign up to receive the NBER Bulletin on Aging and Health by email.

This paper is available as PDF (227 K) or via email.

Acknowledgments

Machine-readable bibliographic record - MARC, RIS, BibTeX

Document Object Identifier (DOI): 10.3386/w15658

Published: “Intended and Unintended Consequences of Youth Bicy cle Helmet Laws” Christopher Carpenter and Mark Stehr, Journal of Law and Economics (2011) 54(2): 305-324.

Users who downloaded this paper also downloaded these:
Chatterji and Markowitz w18773 Effects of Bicycle Helmet Laws on Children's Injuries
Malmendier, Tate, and Yan w15659 Overconfidence and Early-life Experiences: The Impact of Managerial Traits on Corporate Financial Policies
Bollinger, Leslie, and Sorensen w15648 Calorie Posting in Chain Restaurants
Isen and Stevenson w15725 Women's Education and Family Behavior: Trends in Marriage, Divorce and Fertility
Taylor w14631 The Financial Crisis and the Policy Responses: An Empirical Analysis of What Went Wrong
 
Publications
Activities
Meetings
Data
People
About

Support
National Bureau of Economic Research, 1050 Massachusetts Ave., Cambridge, MA 02138; 617-868-3900; email: info@nber.org

Contact Us