TY  - JOUR
PY  - 1991//
TI  - The Market for Safety Regulation and the Effect of Regulation on Fatalities: The Case of Motorcycle Helmet Laws
JO  - Review of economics and statistics
A1  - Sass, Tim R.
A1  - Leigh, J. Paul
SP  - 167
EP  - 172
VL  - 73
IS  - 1
N2  - <p>Existing econometric studies of the efficacy of motorcycle helmet laws assume that such laws are exogenously determined and may therefore yield biased results. To correct for possible selectivity bias, we specify and estimate a self-selection model in which the choice of having a helmet law is endogenous. Our results indicate selectivity bias exists and that if laws were randomly assigned, fatality rates for states with helmet laws would on average be less than 1% lower than for states without laws.</p><p /> 
LA  - 
SN  - 0034-6535
UR  - http://dx.doi.org/10.2307/2109701
ID  - ref1
ER  -