Deaths

State populations in the United States are characterized by large differences in current growth rates and historical growth trends. What demographic factors account for these differences? Population growth has only three components: births, deaths, and migration. In this study, we estimated the contributions of births, deaths, and migration to changes in population size between 1950 and 1980 for the 48 contiguous states in the United States.

Counts of the U.S. Hispanic population are available every ten years from the decennial census, but for the years following or between censuses, estimates have to be created using data and techniques that are expected to track changes in that population over time. Such estimates are a recent development and there is currently no standard methodology that has been widely used, carefully documented, and rigorously tested. In this article, we describe an experimental methodology for estimating the Hispanic population of states and counties.

This paper presents a micro-location model of public investment in pedestrian safety capital. A special case of the model predicts that economies of scale in safety capital can offset the effect of rising population density on the pedestrian fatality rate. Using county level data we confirm this prediction empirically and measure the elasticity of the fatality rate with respect to civil time of sunrise and sunset, sales at bars, highway lane miles, income, climate, and tourism. Pedestrian fatalities on interstate highways are shown to differ from those elsewhere.

This report uses economic analyses and presents relevant information to help policymakers determine why pedestrian fatality rates in Florida exceed those in the rest of the country.

Estimates of the Hispanic population have traditionally been based on historical trends, ratios, or some variant of the cohort-component method. In this article, we describe and test a methodology in which estimates of the Hispanic population are based on symptomatic indicators of population change such as births, deaths, and school enrollments. Methods. Using a variety of techniques, we develop Hispanic population estimates for counties in Florida. We evaluate the accuracy of those estimates by comparing them with 2000 census counts.