Area Frame Estimators in Agricultural Surveys: Sampling Versus Nonsampling Errors

This article describes and compares three area frame estimators used for agricultural surveys and shows the importance of sampling and nonsampling errors to both economists and statisticians Comparisons among the estimators are based on their applicability, sampling efficiency, and susceptibility to nonsamphng errors The weighted segment estimator has the widest applicability and highest precision, but it also has important nonsampling errors This article also discusses research conducted to evaluate and reduce the nonsampling errors