Recent studies in sampling on two occasion have highlighted the preference for regression estimator in terms of precision and for ratio estimators in terms of economic convenience. These conclusions are valid until no cost constraint is considered. In this paper an efficiency comparison for fixed costs is performed: it is shown that artio estimator is always worse than regression estimator even if the efficiency loss is often small.
Regression and ratio estimators on two occasion.
2002
Abstract
Recent studies in sampling on two occasion have highlighted the preference for regression estimator in terms of precision and for ratio estimators in terms of economic convenience. These conclusions are valid until no cost constraint is considered. In this paper an efficiency comparison for fixed costs is performed: it is shown that artio estimator is always worse than regression estimator even if the efficiency loss is often small.
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