The National Crime Victimization Survey (NCVS) has provided annual estimates of the number of victimizations for several types of crime since 1972, with an almost exclusive focus on national rates. Most of the programs to prevent or reduce crime are implemented locally, however. To respond to a resulting interest in subnational statistics, the Bureau of Justice Statistics (BJS) has been recentl...

This article describes an applicationof small area estimation in a survey conducted in the Rathbun Lake Watershed in Iowa (USA). From a sample of 183 plots in the watershed, erosion from four sources as well as total erosion are estimated for 61 small areas within the study region. Information on land cover and topography from GIS coverages are used to create plot-level covariates for the regre...

Government agencies often provide small area estimates that rely on available data and some underlying model that helps to provide estimates in all areas, even in those that were not sampled. Several models have been well-established for the study of data coming from small areas. In this paper we have made a comparison of some of these methods paying attention to how different types of data set...

STUDY OBJECTIVE To evaluate methods for calculating life expectancy in small areas, for example, English electoral wards. DESIGN The Monte Carlo method was used to simulate the distribution of life expectancy (and its standard error) estimates for 10 alternative life table models. The models were combinations of Chiang or Silcocks methodology, 5 or 10 year age intervals, and a final age inter...

Small area estimation based on area level models typically assumes that sampling error variances for the direct survey small area estimates are known. In practice we use estimates of the sampling error variances, and these can contain substantial error. This suggests modeling the sampling variances to improve them and to quantify e , dects of their estimation error on small area inferences. We ...