Skip Main Navigation Skip To Navigation Content

Small Area Health Insurance Estimates (SAHIE)

Skip top of page navigation
Census.govPeople and Households SAHIE Main SAHIE MethodologyDemographic and Income Model › Prior Distributions and Model Limitations

SAHIE Demographic and Income Model Methodology 2001: Prior Distributions and Model Limitations

Prior Distributions

All high level parameters are given prior distributions. The prior distributions for the regression coefficients are noninformative flat priors. The prior distributions for the other parameters are gamma priors that generally carry little information.

Model Limitations

For both models, modeling choices, including assumptions of independence, the choice of variance forms, and the use of two variables - tax exemptions and non-filing rate - derived from tax data, have not been completely validated. Hence, we may have underestimated variances of the estimates.


Source: U.S. Census Bureau | Small Area Health Insurance Estimates |  Last Revised: August 29, 2012