Australian Bureau of Statistics
1352.0.55.017 - Research Paper: The impact of rotation patterns and composite estimation on survey outcomes, MAC Paper, 1998
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 05/11/1998 First Issue
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Focusing on good estimates of the "underlying trend" of the series, and how it changes over time, could lead to quite different survey designs. Previous work suggests that a sample rotation pattern with no month to month overlap would provide better trend estimates. Unfortunately such a rotation pattern gives poor estimates of month to month change.
This paper considers an alternative estimator, the linear composite estimator, in combination with various sample rotation patterns. A rotation pattern is presented in which individuals are sampled for two successive months out of every four months, giving a 50 percent overlap of sample between successive months. By using composite estimation this rotation pattern yields improved estimates of trend while maintaining good estimates of month to month change.
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