The impact of state level behavioral regulations on traffic fatality rates.
BACKGROUND
A state by year panel is analyzed to simultaneously explore the statistical correlation between state level traffic fatality rates and state level behavioral regulations regarding teen licensing, seat belt use, and driving under the influence (DUI) in a model that also controls for other correlates.


METHODS
By including measures of all three of these policies, the estimated policy effects should not be overstated due to underspecification bias. The panel includes the 48 contiguous U.S. states for the time period from 1999 through 2003. State fatality rates are measured as fatalities per million miles traveled. Measures of state policies regarding traffic safety related behavior are based on information gathered by the Insurance Institute for Highway Safety. Estimates are calculated via a time fixed effects model that uses the double-log form to allow for interaction effects between the independent variables.


RESULTS
Least squares estimates indicate that, on average, more restrictive graduated teen licensing and DUI policies significantly reduce traffic fatality rates, while stricter seat belt enforcement policies have a statistically insignificant negative impact on fatality rates.
Traynor
Thomas L
TL
Department of Economics, Wright State University, Dayton, Ohio 45435, USA. thomas.traynor@wright.edu
D000063:Accidents, Traffic / Q000401:mortality* / Q000706:statistics & numerical data*; D000435:Alcoholic Intoxication; D001334:Automobile Driving / Q000331:legislation & jurisprudence; D006801:Humans; D015233:Models, Statistical; D009026:Mortality / Q000639:trends*; D011640:Public Policy / Q000331:legislation & jurisprudence; D012309:Risk-Taking; D012449:Safety / Q000331:legislation & jurisprudence*; D012622:Seat Belts / Q000706:statistics & numerical data; D013223:Statistics as Topic; D014481:United States