TY - JOUR AU - Neidell,Matthew J. TI - Information, Avoidance Behavior, and Health: The Effect of Ozone on Asthma Hospitalizations JF - National Bureau of Economic Research Working Paper Series VL - No. 14209 PY - 2008 Y2 - July 2008 UR - http://www.nber.org/papers/w14209 L1 - http://www.nber.org/papers/w14209.pdf N1 - Author contact info: Matthew J. Neidell Department of Health Policy and Management Columbia University 600 W 168th Street, 6th Floor New York, NY 10032 Tel: 212/342-4522 Fax: 212/305-3405 E-Mail: mn2191@columbia.edu AB - This paper assesses whether responses to information about risk impact estimates of the relationship between ozone and asthma in Southern California. Using a regression discontinuity design, I find smog alerts significantly reduces daily attendance at two major outdoor facilities. Using daily time-series regression models that include year-month and small area fixed effects, I find estimates of the effect of ozone for children and the elderly that include information are significantly larger than estimates that do not. These results are consistent with the hypothesis that individuals take substantial action to reduce exposure to risk; estimates ignoring these actions are severely biased. ER -