Changes in subjective risks of hurricanes as time passes: analysis of a sample of Katrina evacuees

Using a quasi-field experiment, we report on subjects' perceptions of the risks of hurricanes. All experimental subjects were displaced by either Hurricane Katrina or Rita, in New Orleans and other Gulf Coast areas, except for a small control group consisting of people who live in central Texas. We examine their perceptions of risks just after the hurricanes occurred, and over one year later to evaluate the change in subjective risk perceptions over time. A latent risk model is estimated in which subjective probabilities of hurricane strike risk are represented as a function of respondents' demographic characteristics and experiences following the storms.