Graduated driver licensing and teen traffic fatalities.

Over the last 8 years, nearly every state has introduced graduated driver licensing (GDL) for teens. These new licensing procedures require teen drivers to advance through distinct stages where they are subject to a variety of restrictions (e.g., adult supervision, daytime driving, passenger limits). In this study, we present evidence on whether these restrictions have been effective in reducing traffic fatalities among teens. These evaluations are based on state-by-year panel data from 1992 to 2002. We assess the reliability of our basic inferences in several ways including an examination of contemporaneous data for older cohorts who were not directly affected by these policies. Our results indicate that GDL regulations reduced traffic fatalities among 15-17-year-olds by at least 5.6%. We also find that the life-saving benefits of these regulations were plausibly related to their restrictiveness. And we find no evidence that these benefits were attenuated by an increase in fatality risks during the full-licensure period available to older teens.

[1]  P. Allison,et al.  7. Fixed-Effects Negative Binomial Regression Models , 2002 .

[2]  Z. Griliches,et al.  Econometric Models for Count Data with an Application to the Patents-R&D Relationship , 1984 .

[3]  J. Gruber The incidence of mandated maternity benefits. , 1994, The American economic review.

[4]  D. Eisenberg Evaluating the effectiveness of policies related to drunk driving , 2003 .

[5]  Joseph E. Aldy,et al.  The Value of a Statistical Life: A Critical Review of Market Estimates Throughout the World , 2003 .

[6]  Michael Greenstone,et al.  A Reexamination of Resource Allocation Responses to the 65-MPH Speed Limit , 2002 .

[7]  D. Grabowski,et al.  The effect of state regulations on motor vehicle fatalities for younger and older drivers: a review and analysis. , 2001, The Milbank quarterly.

[8]  D. Grabowski,et al.  State motor vehicle laws and older drivers. , 2005, Health economics.

[9]  Thomas S. Dee,et al.  Does setting limits save lives? The case of 0.08 BAC laws , 2001 .

[10]  E. Duflo,et al.  How Much Should We Trust Differences-in-Differences Estimates? , 2001 .

[11]  J T Shope,et al.  Graduated driver licensing in Michigan: early impact on motor vehicle crashes among 16-year-old drivers. , 2001, JAMA.

[12]  W. Evans,et al.  Risk reduction or risk compensation? The case of mandatory safety-belt use laws , 1991 .

[13]  William N. Evans,et al.  Behavior Policies and Teen Traffic Safety , 2001 .

[14]  E A Rodgman,et al.  Initial effects of graduated driver licensing on 16-year-old driver crashes in North Carolina. , 2001, JAMA.

[15]  A F Williams,et al.  Effect of Florida's graduated licensing program on the crash rate of teenage drivers. , 2000, Accident; analysis and prevention.