TY - JOUR AU - Cohen,Alma AU - Dehejia,Rajeev TI - The Effect of Automobile Insurance and Accident Liability Laws in Traffic Fatalities JF - National Bureau of Economic Research Working Paper Series VL - No. 9602 PY - 2003 Y2 - April 2003 UR - http://www.nber.org/papers/w9602 L1 - http://www.nber.org/papers/w9602.pdf N1 - Author contact info: Alma Cohen The Eitan Berglas School of Economics Tel Aviv University Ramat-Aviv, Tel-Aviv ISRAEL Tel: 011-972-3-640-993 E-Mail: almac@post.tau.ac.il Rajeev H. Dehejia Wagner School of Public Policy New York University 295 Lafayette Street, 2nd floor New York, NY 10012 Tel: 212-998-7435 E-Mail: rajeev@dehejia.net AB - This paper investigates the incentive effects of automobile insurance, compulsory insurance laws, and no-fault liability laws on driver behavior and traffic fatalities. We analyze a panel of 50 U.S. states and the District of Columbia from 1970-1998, a period in which many states adopted compulsory insurance regulations and/or no-fault laws. Using an instrumental variables approach, we find evidence that automobile insurance has moral hazard costs, leading to an increase in traffic fatalities. We also find that reductions in accident liability produced by no-fault liability laws have led to an increase in traffic fatalities (estimated to be on the order of 6%). Overall, our results indicate that, whatever other benefits they might produce, increases in the incidence of automobile insurance and moves to no-fault liability systems have significant negative effects on traffic fatalities. ER -